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Hexagon images fail to build with the following error.
arch/hexagon/kernel/vdso.c:57:3: error: use of undeclared identifier 'name'
name = "[vdso]",
^
Add the missing '.' to fix the problem.
Fixes: 497258dfafcc ("mm: remove legacy install_special_mapping() code")
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Add SPDX identifier to the gitignore. Remove the comment and .i file
since the file it references was removed in another patch. This patch
depends on Min-Hua Chen's 'pm: cpupower: rename raw_pylibcpupower.i'.
Signed-off-by: John B. Wyatt IV <jwyatt@redhat.com>
Signed-off-by: John B. Wyatt IV <sageofredondo@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Reset the data_vio properly for each discard block, and delay
acknowledgement and cleanup until all discard blocks are complete.
Signed-off-by: Matthew Sakai <msakai@redhat.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
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I have been contributing to exfat for sometime and I would like to help
with code reviews as well.
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Acked-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
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If exfat_load_upcase_table reaches end and returns -EINVAL,
allocated memory doesn't get freed and while
exfat_load_default_upcase_table allocates more memory, leading to a
memory leak.
Here's link to syzkaller crash report illustrating this issue:
https://syzkaller.appspot.com/text?tag=CrashReport&x=1406c201980000
Reported-by: syzbot+e1c69cadec0f1a078e3d@syzkaller.appspotmail.com
Fixes: a13d1a4de3b0 ("exfat: move freeing sbi, upcase table and dropping nls into rcu-delayed helper")
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Yang <danielyangkang@gmail.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
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It is not a good way to extend valid_size to the end of the
mmap area by writing zeros in mmap. Because after calling mmap,
no data may be written, or only a small amount of data may be
written to the head of the mmap area.
This commit moves extending valid_size to exfat_page_mkwrite().
In exfat_page_mkwrite() only extend valid_size to the starting
position of new data writing, which reduces unnecessary writing
of zeros.
If the block is not mapped and is marked as new after being
mapped for writing, block_write_begin() will zero the page
cache corresponding to the block, so there is no need to call
zero_user_segment() in exfat_file_zeroed_range(). And after moving
extending valid_size to exfat_page_mkwrite(), the data written by
mmap will be copied to the page cache but the page cache may be
not mapped to the disk. Calling zero_user_segment() will cause
the data written by mmap to be cleared. So this commit removes
calling zero_user_segment() from exfat_file_zeroed_range() and
renames exfat_file_zeroed_range() to exfat_extend_valid_size().
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
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We have some machines running stock Ubuntu 20.04.6 which is their 5.4.0-174-generic
kernel that are running ceph and recently hit a null ptr dereference in
tcp_rearm_rto(). Initially hitting it from the TLP path, but then later we also
saw it getting hit from the RACK case as well. Here are examples of the oops
messages we saw in each of those cases:
Jul 26 15:05:02 rx [11061395.780353] BUG: kernel NULL pointer dereference, address: 0000000000000020
Jul 26 15:05:02 rx [11061395.787572] #PF: supervisor read access in kernel mode
Jul 26 15:05:02 rx [11061395.792971] #PF: error_code(0x0000) - not-present page
Jul 26 15:05:02 rx [11061395.798362] PGD 0 P4D 0
Jul 26 15:05:02 rx [11061395.801164] Oops: 0000 [#1] SMP NOPTI
Jul 26 15:05:02 rx [11061395.805091] CPU: 0 PID: 9180 Comm: msgr-worker-1 Tainted: G W 5.4.0-174-generic #193-Ubuntu
Jul 26 15:05:02 rx [11061395.814996] Hardware name: Supermicro SMC 2x26 os-gen8 64C NVME-Y 256G/H12SSW-NTR, BIOS 2.5.V1.2U.NVMe.UEFI 05/09/2023
Jul 26 15:05:02 rx [11061395.825952] RIP: 0010:tcp_rearm_rto+0xe4/0x160
Jul 26 15:05:02 rx [11061395.830656] Code: 87 ca 04 00 00 00 5b 41 5c 41 5d 5d c3 c3 49 8b bc 24 40 06 00 00 eb 8d 48 bb cf f7 53 e3 a5 9b c4 20 4c 89 ef e8 0c fe 0e 00 <48> 8b 78 20 48 c1 ef 03 48 89 f8 41 8b bc 24 80 04 00 00 48 f7 e3
Jul 26 15:05:02 rx [11061395.849665] RSP: 0018:ffffb75d40003e08 EFLAGS: 00010246
Jul 26 15:05:02 rx [11061395.855149] RAX: 0000000000000000 RBX: 20c49ba5e353f7cf RCX: 0000000000000000
Jul 26 15:05:02 rx [11061395.862542] RDX: 0000000062177c30 RSI: 000000000000231c RDI: ffff9874ad283a60
Jul 26 15:05:02 rx [11061395.869933] RBP: ffffb75d40003e20 R08: 0000000000000000 R09: ffff987605e20aa8
Jul 26 15:05:02 rx [11061395.877318] R10: ffffb75d40003f00 R11: ffffb75d4460f740 R12: ffff9874ad283900
Jul 26 15:05:02 rx [11061395.884710] R13: ffff9874ad283a60 R14: ffff9874ad283980 R15: ffff9874ad283d30
Jul 26 15:05:02 rx [11061395.892095] FS: 00007f1ef4a2e700(0000) GS:ffff987605e00000(0000) knlGS:0000000000000000
Jul 26 15:05:02 rx [11061395.900438] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jul 26 15:05:02 rx [11061395.906435] CR2: 0000000000000020 CR3: 0000003e450ba003 CR4: 0000000000760ef0
Jul 26 15:05:02 rx [11061395.913822] PKRU: 55555554
Jul 26 15:05:02 rx [11061395.916786] Call Trace:
Jul 26 15:05:02 rx [11061395.919488]
Jul 26 15:05:02 rx [11061395.921765] ? show_regs.cold+0x1a/0x1f
Jul 26 15:05:02 rx [11061395.925859] ? __die+0x90/0xd9
Jul 26 15:05:02 rx [11061395.929169] ? no_context+0x196/0x380
Jul 26 15:05:02 rx [11061395.933088] ? ip6_protocol_deliver_rcu+0x4e0/0x4e0
Jul 26 15:05:02 rx [11061395.938216] ? ip6_sublist_rcv_finish+0x3d/0x50
Jul 26 15:05:02 rx [11061395.943000] ? __bad_area_nosemaphore+0x50/0x1a0
Jul 26 15:05:02 rx [11061395.947873] ? bad_area_nosemaphore+0x16/0x20
Jul 26 15:05:02 rx [11061395.952486] ? do_user_addr_fault+0x267/0x450
Jul 26 15:05:02 rx [11061395.957104] ? ipv6_list_rcv+0x112/0x140
Jul 26 15:05:02 rx [11061395.961279] ? __do_page_fault+0x58/0x90
Jul 26 15:05:02 rx [11061395.965458] ? do_page_fault+0x2c/0xe0
Jul 26 15:05:02 rx [11061395.969465] ? page_fault+0x34/0x40
Jul 26 15:05:02 rx [11061395.973217] ? tcp_rearm_rto+0xe4/0x160
Jul 26 15:05:02 rx [11061395.977313] ? tcp_rearm_rto+0xe4/0x160
Jul 26 15:05:02 rx [11061395.981408] tcp_send_loss_probe+0x10b/0x220
Jul 26 15:05:02 rx [11061395.985937] tcp_write_timer_handler+0x1b4/0x240
Jul 26 15:05:02 rx [11061395.990809] tcp_write_timer+0x9e/0xe0
Jul 26 15:05:02 rx [11061395.994814] ? tcp_write_timer_handler+0x240/0x240
Jul 26 15:05:02 rx [11061395.999866] call_timer_fn+0x32/0x130
Jul 26 15:05:02 rx [11061396.003782] __run_timers.part.0+0x180/0x280
Jul 26 15:05:02 rx [11061396.008309] ? recalibrate_cpu_khz+0x10/0x10
Jul 26 15:05:02 rx [11061396.012841] ? native_x2apic_icr_write+0x30/0x30
Jul 26 15:05:02 rx [11061396.017718] ? lapic_next_event+0x21/0x30
Jul 26 15:05:02 rx [11061396.021984] ? clockevents_program_event+0x8f/0xe0
Jul 26 15:05:02 rx [11061396.027035] run_timer_softirq+0x2a/0x50
Jul 26 15:05:02 rx [11061396.031212] __do_softirq+0xd1/0x2c1
Jul 26 15:05:02 rx [11061396.035044] do_softirq_own_stack+0x2a/0x40
Jul 26 15:05:02 rx [11061396.039480]
Jul 26 15:05:02 rx [11061396.041840] do_softirq.part.0+0x46/0x50
Jul 26 15:05:02 rx [11061396.046022] __local_bh_enable_ip+0x50/0x60
Jul 26 15:05:02 rx [11061396.050460] _raw_spin_unlock_bh+0x1e/0x20
Jul 26 15:05:02 rx [11061396.054817] nf_conntrack_tcp_packet+0x29e/0xbe0 [nf_conntrack]
Jul 26 15:05:02 rx [11061396.060994] ? get_l4proto+0xe7/0x190 [nf_conntrack]
Jul 26 15:05:02 rx [11061396.066220] nf_conntrack_in+0xe9/0x670 [nf_conntrack]
Jul 26 15:05:02 rx [11061396.071618] ipv6_conntrack_local+0x14/0x20 [nf_conntrack]
Jul 26 15:05:02 rx [11061396.077356] nf_hook_slow+0x45/0xb0
Jul 26 15:05:02 rx [11061396.081098] ip6_xmit+0x3f0/0x5d0
Jul 26 15:05:02 rx [11061396.084670] ? ipv6_anycast_cleanup+0x50/0x50
Jul 26 15:05:02 rx [11061396.089282] ? __sk_dst_check+0x38/0x70
Jul 26 15:05:02 rx [11061396.093381] ? inet6_csk_route_socket+0x13b/0x200
Jul 26 15:05:02 rx [11061396.098346] inet6_csk_xmit+0xa7/0xf0
Jul 26 15:05:02 rx [11061396.102263] __tcp_transmit_skb+0x550/0xb30
Jul 26 15:05:02 rx [11061396.106701] tcp_write_xmit+0x3c6/0xc20
Jul 26 15:05:02 rx [11061396.110792] ? __alloc_skb+0x98/0x1d0
Jul 26 15:05:02 rx [11061396.114708] __tcp_push_pending_frames+0x37/0x100
Jul 26 15:05:02 rx [11061396.119667] tcp_push+0xfd/0x100
Jul 26 15:05:02 rx [11061396.123150] tcp_sendmsg_locked+0xc70/0xdd0
Jul 26 15:05:02 rx [11061396.127588] tcp_sendmsg+0x2d/0x50
Jul 26 15:05:02 rx [11061396.131245] inet6_sendmsg+0x43/0x70
Jul 26 15:05:02 rx [11061396.135075] __sock_sendmsg+0x48/0x70
Jul 26 15:05:02 rx [11061396.138994] ____sys_sendmsg+0x212/0x280
Jul 26 15:05:02 rx [11061396.143172] ___sys_sendmsg+0x88/0xd0
Jul 26 15:05:02 rx [11061396.147098] ? __seccomp_filter+0x7e/0x6b0
Jul 26 15:05:02 rx [11061396.151446] ? __switch_to+0x39c/0x460
Jul 26 15:05:02 rx [11061396.155453] ? __switch_to_asm+0x42/0x80
Jul 26 15:05:02 rx [11061396.159636] ? __switch_to_asm+0x5a/0x80
Jul 26 15:05:02 rx [11061396.163816] __sys_sendmsg+0x5c/0xa0
Jul 26 15:05:02 rx [11061396.167647] __x64_sys_sendmsg+0x1f/0x30
Jul 26 15:05:02 rx [11061396.171832] do_syscall_64+0x57/0x190
Jul 26 15:05:02 rx [11061396.175748] entry_SYSCALL_64_after_hwframe+0x5c/0xc1
Jul 26 15:05:02 rx [11061396.181055] RIP: 0033:0x7f1ef692618d
Jul 26 15:05:02 rx [11061396.184893] Code: 28 89 54 24 1c 48 89 74 24 10 89 7c 24 08 e8 ca ee ff ff 8b 54 24 1c 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 2f 44 89 c7 48 89 44 24 08 e8 fe ee ff ff 48
Jul 26 15:05:02 rx [11061396.203889] RSP: 002b:00007f1ef4a26aa0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e
Jul 26 15:05:02 rx [11061396.211708] RAX: ffffffffffffffda RBX: 000000000000084b RCX: 00007f1ef692618d
Jul 26 15:05:02 rx [11061396.219091] RDX: 0000000000004000 RSI: 00007f1ef4a26b10 RDI: 0000000000000275
Jul 26 15:05:02 rx [11061396.226475] RBP: 0000000000004000 R08: 0000000000000000 R09: 0000000000000020
Jul 26 15:05:02 rx [11061396.233859] R10: 0000000000000000 R11: 0000000000000293 R12: 000000000000084b
Jul 26 15:05:02 rx [11061396.241243] R13: 00007f1ef4a26b10 R14: 0000000000000275 R15: 000055592030f1e8
Jul 26 15:05:02 rx [11061396.248628] Modules linked in: vrf bridge stp llc vxlan ip6_udp_tunnel udp_tunnel nls_iso8859_1 amd64_edac_mod edac_mce_amd kvm_amd kvm crct10dif_pclmul ghash_clmulni_intel aesni_intel crypto_simd cryptd glue_helper wmi_bmof ipmi_ssif input_leds joydev rndis_host cdc_ether usbnet mii ast drm_vram_helper ttm drm_kms_helper i2c_algo_bit fb_sys_fops syscopyarea sysfillrect sysimgblt ccp mac_hid ipmi_si ipmi_devintf ipmi_msghandler nft_ct sch_fq_codel nf_tables_set nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables nfnetlink ramoops reed_solomon efi_pstore drm ip_tables x_tables autofs4 raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid0 multipath linear mlx5_ib ib_uverbs ib_core raid1 mlx5_core hid_generic pci_hyperv_intf crc32_pclmul tls usbhid ahci mlxfw bnxt_en libahci hid nvme i2c_piix4 nvme_core wmi
Jul 26 15:05:02 rx [11061396.324334] CR2: 0000000000000020
Jul 26 15:05:02 rx [11061396.327944] ---[ end trace 68a2b679d1cfb4f1 ]---
Jul 26 15:05:02 rx [11061396.433435] RIP: 0010:tcp_rearm_rto+0xe4/0x160
Jul 26 15:05:02 rx [11061396.438137] Code: 87 ca 04 00 00 00 5b 41 5c 41 5d 5d c3 c3 49 8b bc 24 40 06 00 00 eb 8d 48 bb cf f7 53 e3 a5 9b c4 20 4c 89 ef e8 0c fe 0e 00 <48> 8b 78 20 48 c1 ef 03 48 89 f8 41 8b bc 24 80 04 00 00 48 f7 e3
Jul 26 15:05:02 rx [11061396.457144] RSP: 0018:ffffb75d40003e08 EFLAGS: 00010246
Jul 26 15:05:02 rx [11061396.462629] RAX: 0000000000000000 RBX: 20c49ba5e353f7cf RCX: 0000000000000000
Jul 26 15:05:02 rx [11061396.470012] RDX: 0000000062177c30 RSI: 000000000000231c RDI: ffff9874ad283a60
Jul 26 15:05:02 rx [11061396.477396] RBP: ffffb75d40003e20 R08: 0000000000000000 R09: ffff987605e20aa8
Jul 26 15:05:02 rx [11061396.484779] R10: ffffb75d40003f00 R11: ffffb75d4460f740 R12: ffff9874ad283900
Jul 26 15:05:02 rx [11061396.492164] R13: ffff9874ad283a60 R14: ffff9874ad283980 R15: ffff9874ad283d30
Jul 26 15:05:02 rx [11061396.499547] FS: 00007f1ef4a2e700(0000) GS:ffff987605e00000(0000) knlGS:0000000000000000
Jul 26 15:05:02 rx [11061396.507886] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jul 26 15:05:02 rx [11061396.513884] CR2: 0000000000000020 CR3: 0000003e450ba003 CR4: 0000000000760ef0
Jul 26 15:05:02 rx [11061396.521267] PKRU: 55555554
Jul 26 15:05:02 rx [11061396.524230] Kernel panic - not syncing: Fatal exception in interrupt
Jul 26 15:05:02 rx [11061396.530885] Kernel Offset: 0x1b200000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
Jul 26 15:05:03 rx [11061396.660181] ---[ end Kernel panic - not syncing: Fatal
exception in interrupt ]---
After we hit this we disabled TLP by setting tcp_early_retrans to 0 and then hit the crash in the RACK case:
Aug 7 07:26:16 rx [1006006.265582] BUG: kernel NULL pointer dereference, address: 0000000000000020
Aug 7 07:26:16 rx [1006006.272719] #PF: supervisor read access in kernel mode
Aug 7 07:26:16 rx [1006006.278030] #PF: error_code(0x0000) - not-present page
Aug 7 07:26:16 rx [1006006.283343] PGD 0 P4D 0
Aug 7 07:26:16 rx [1006006.286057] Oops: 0000 [#1] SMP NOPTI
Aug 7 07:26:16 rx [1006006.289896] CPU: 5 PID: 0 Comm: swapper/5 Tainted: G W 5.4.0-174-generic #193-Ubuntu
Aug 7 07:26:16 rx [1006006.299107] Hardware name: Supermicro SMC 2x26 os-gen8 64C NVME-Y 256G/H12SSW-NTR, BIOS 2.5.V1.2U.NVMe.UEFI 05/09/2023
Aug 7 07:26:16 rx [1006006.309970] RIP: 0010:tcp_rearm_rto+0xe4/0x160
Aug 7 07:26:16 rx [1006006.314584] Code: 87 ca 04 00 00 00 5b 41 5c 41 5d 5d c3 c3 49 8b bc 24 40 06 00 00 eb 8d 48 bb cf f7 53 e3 a5 9b c4 20 4c 89 ef e8 0c fe 0e 00 <48> 8b 78 20 48 c1 ef 03 48 89 f8 41 8b bc 24 80 04 00 00 48 f7 e3
Aug 7 07:26:16 rx [1006006.333499] RSP: 0018:ffffb42600a50960 EFLAGS: 00010246
Aug 7 07:26:16 rx [1006006.338895] RAX: 0000000000000000 RBX: 20c49ba5e353f7cf RCX: 0000000000000000
Aug 7 07:26:16 rx [1006006.346193] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff92d687ed8160
Aug 7 07:26:16 rx [1006006.353489] RBP: ffffb42600a50978 R08: 0000000000000000 R09: 00000000cd896dcc
Aug 7 07:26:16 rx [1006006.360786] R10: ffff92dc3404f400 R11: 0000000000000001 R12: ffff92d687ed8000
Aug 7 07:26:16 rx [1006006.368084] R13: ffff92d687ed8160 R14: 00000000cd896dcc R15: 00000000cd8fca81
Aug 7 07:26:16 rx [1006006.375381] FS: 0000000000000000(0000) GS:ffff93158ad40000(0000) knlGS:0000000000000000
Aug 7 07:26:16 rx [1006006.383632] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Aug 7 07:26:16 rx [1006006.389544] CR2: 0000000000000020 CR3: 0000003e775ce006 CR4: 0000000000760ee0
Aug 7 07:26:16 rx [1006006.396839] PKRU: 55555554
Aug 7 07:26:16 rx [1006006.399717] Call Trace:
Aug 7 07:26:16 rx [1006006.402335]
Aug 7 07:26:16 rx [1006006.404525] ? show_regs.cold+0x1a/0x1f
Aug 7 07:26:16 rx [1006006.408532] ? __die+0x90/0xd9
Aug 7 07:26:16 rx [1006006.411760] ? no_context+0x196/0x380
Aug 7 07:26:16 rx [1006006.415599] ? __bad_area_nosemaphore+0x50/0x1a0
Aug 7 07:26:16 rx [1006006.420392] ? _raw_spin_lock+0x1e/0x30
Aug 7 07:26:16 rx [1006006.424401] ? bad_area_nosemaphore+0x16/0x20
Aug 7 07:26:16 rx [1006006.428927] ? do_user_addr_fault+0x267/0x450
Aug 7 07:26:16 rx [1006006.433450] ? __do_page_fault+0x58/0x90
Aug 7 07:26:16 rx [1006006.437542] ? do_page_fault+0x2c/0xe0
Aug 7 07:26:16 rx [1006006.441470] ? page_fault+0x34/0x40
Aug 7 07:26:16 rx [1006006.445134] ? tcp_rearm_rto+0xe4/0x160
Aug 7 07:26:16 rx [1006006.449145] tcp_ack+0xa32/0xb30
Aug 7 07:26:16 rx [1006006.452542] tcp_rcv_established+0x13c/0x670
Aug 7 07:26:16 rx [1006006.456981] ? sk_filter_trim_cap+0x48/0x220
Aug 7 07:26:16 rx [1006006.461419] tcp_v6_do_rcv+0xdb/0x450
Aug 7 07:26:16 rx [1006006.465257] tcp_v6_rcv+0xc2b/0xd10
Aug 7 07:26:16 rx [1006006.468918] ip6_protocol_deliver_rcu+0xd3/0x4e0
Aug 7 07:26:16 rx [1006006.473706] ip6_input_finish+0x15/0x20
Aug 7 07:26:16 rx [1006006.477710] ip6_input+0xa2/0xb0
Aug 7 07:26:16 rx [1006006.481109] ? ip6_protocol_deliver_rcu+0x4e0/0x4e0
Aug 7 07:26:16 rx [1006006.486151] ip6_sublist_rcv_finish+0x3d/0x50
Aug 7 07:26:16 rx [1006006.490679] ip6_sublist_rcv+0x1aa/0x250
Aug 7 07:26:16 rx [1006006.494779] ? ip6_rcv_finish_core.isra.0+0xa0/0xa0
Aug 7 07:26:16 rx [1006006.499828] ipv6_list_rcv+0x112/0x140
Aug 7 07:26:16 rx [1006006.503748] __netif_receive_skb_list_core+0x1a4/0x250
Aug 7 07:26:16 rx [1006006.509057] netif_receive_skb_list_internal+0x1a1/0x2b0
Aug 7 07:26:16 rx [1006006.514538] gro_normal_list.part.0+0x1e/0x40
Aug 7 07:26:16 rx [1006006.519068] napi_complete_done+0x91/0x130
Aug 7 07:26:16 rx [1006006.523352] mlx5e_napi_poll+0x18e/0x610 [mlx5_core]
Aug 7 07:26:16 rx [1006006.528481] net_rx_action+0x142/0x390
Aug 7 07:26:16 rx [1006006.532398] __do_softirq+0xd1/0x2c1
Aug 7 07:26:16 rx [1006006.536142] irq_exit+0xae/0xb0
Aug 7 07:26:16 rx [1006006.539452] do_IRQ+0x5a/0xf0
Aug 7 07:26:16 rx [1006006.542590] common_interrupt+0xf/0xf
Aug 7 07:26:16 rx [1006006.546421]
Aug 7 07:26:16 rx [1006006.548695] RIP: 0010:native_safe_halt+0xe/0x10
Aug 7 07:26:16 rx [1006006.553399] Code: 7b ff ff ff eb bd 90 90 90 90 90 90 e9 07 00 00 00 0f 00 2d 36 2c 50 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 26 2c 50 00 fb f4 90 0f 1f 44 00 00 55 48 89 e5 41 55 41 54 53 e8 dd 5e 61 ff 65
Aug 7 07:26:16 rx [1006006.572309] RSP: 0018:ffffb42600177e70 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffc2
Aug 7 07:26:16 rx [1006006.580040] RAX: ffffffff8ed08b20 RBX: 0000000000000005 RCX: 0000000000000001
Aug 7 07:26:16 rx [1006006.587337] RDX: 00000000f48eeca2 RSI: 0000000000000082 RDI: 0000000000000082
Aug 7 07:26:16 rx [1006006.594635] RBP: ffffb42600177e90 R08: 0000000000000000 R09: 000000000000020f
Aug 7 07:26:16 rx [1006006.601931] R10: 0000000000100000 R11: 0000000000000000 R12: 0000000000000005
Aug 7 07:26:16 rx [1006006.609229] R13: ffff93157deb5f00 R14: 0000000000000000 R15: 0000000000000000
Aug 7 07:26:16 rx [1006006.616530] ? __cpuidle_text_start+0x8/0x8
Aug 7 07:26:16 rx [1006006.620886] ? default_idle+0x20/0x140
Aug 7 07:26:16 rx [1006006.624804] arch_cpu_idle+0x15/0x20
Aug 7 07:26:16 rx [1006006.628545] default_idle_call+0x23/0x30
Aug 7 07:26:16 rx [1006006.632640] do_idle+0x1fb/0x270
Aug 7 07:26:16 rx [1006006.636035] cpu_startup_entry+0x20/0x30
Aug 7 07:26:16 rx [1006006.640126] start_secondary+0x178/0x1d0
Aug 7 07:26:16 rx [1006006.644218] secondary_startup_64+0xa4/0xb0
Aug 7 07:26:17 rx [1006006.648568] Modules linked in: vrf bridge stp llc vxlan ip6_udp_tunnel udp_tunnel nls_iso8859_1 nft_ct amd64_edac_mod edac_mce_amd kvm_amd kvm crct10dif_pclmul ghash_clmulni_intel aesni_intel crypto_simd cryptd glue_helper wmi_bmof ipmi_ssif input_leds joydev rndis_host cdc_ether usbnet ast mii drm_vram_helper ttm drm_kms_helper i2c_algo_bit fb_sys_fops syscopyarea sysfillrect sysimgblt ccp mac_hid ipmi_si ipmi_devintf ipmi_msghandler sch_fq_codel nf_tables_set nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables nfnetlink ramoops reed_solomon efi_pstore drm ip_tables x_tables autofs4 raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid0 multipath linear mlx5_ib ib_uverbs ib_core raid1 hid_generic mlx5_core pci_hyperv_intf crc32_pclmul usbhid ahci tls mlxfw bnxt_en hid libahci nvme i2c_piix4 nvme_core wmi [last unloaded: cpuid]
Aug 7 07:26:17 rx [1006006.726180] CR2: 0000000000000020
Aug 7 07:26:17 rx [1006006.729718] ---[ end trace e0e2e37e4e612984 ]---
Prior to seeing the first crash and on other machines we also see the warning in
tcp_send_loss_probe() where packets_out is non-zero, but both transmit and retrans
queues are empty so we know the box is seeing some accounting issue in this area:
Jul 26 09:15:27 kernel: ------------[ cut here ]------------
Jul 26 09:15:27 kernel: invalid inflight: 2 state 1 cwnd 68 mss 8988
Jul 26 09:15:27 kernel: WARNING: CPU: 16 PID: 0 at net/ipv4/tcp_output.c:2605 tcp_send_loss_probe+0x214/0x220
Jul 26 09:15:27 kernel: Modules linked in: vrf bridge stp llc vxlan ip6_udp_tunnel udp_tunnel nls_iso8859_1 nft_ct amd64_edac_mod edac_mce_amd kvm_amd kvm crct10dif_pclmul ghash_clmulni_intel aesni_intel crypto_simd cryptd glue_helper wmi_bmof ipmi_ssif joydev input_leds rndis_host cdc_ether usbnet mii ast drm_vram_helper ttm drm_kms_he>
Jul 26 09:15:27 kernel: CPU: 16 PID: 0 Comm: swapper/16 Not tainted 5.4.0-174-generic #193-Ubuntu
Jul 26 09:15:27 kernel: Hardware name: Supermicro SMC 2x26 os-gen8 64C NVME-Y 256G/H12SSW-NTR, BIOS 2.5.V1.2U.NVMe.UEFI 05/09/2023
Jul 26 09:15:27 kernel: RIP: 0010:tcp_send_loss_probe+0x214/0x220
Jul 26 09:15:27 kernel: Code: 08 26 01 00 75 e2 41 0f b6 54 24 12 41 8b 8c 24 c0 06 00 00 45 89 f0 48 c7 c7 e0 b4 20 a7 c6 05 8d 08 26 01 01 e8 4a c0 0f 00 <0f> 0b eb ba 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 41
Jul 26 09:15:27 kernel: RSP: 0018:ffffb7838088ce00 EFLAGS: 00010286
Jul 26 09:15:27 kernel: RAX: 0000000000000000 RBX: ffff9b84b5630430 RCX: 0000000000000006
Jul 26 09:15:27 kernel: RDX: 0000000000000007 RSI: 0000000000000096 RDI: ffff9b8e4621c8c0
Jul 26 09:15:27 kernel: RBP: ffffb7838088ce18 R08: 0000000000000927 R09: 0000000000000004
Jul 26 09:15:27 kernel: R10: 0000000000000000 R11: 0000000000000001 R12: ffff9b84b5630000
Jul 26 09:15:27 kernel: R13: 0000000000000000 R14: 000000000000231c R15: ffff9b84b5630430
Jul 26 09:15:27 kernel: FS: 0000000000000000(0000) GS:ffff9b8e46200000(0000) knlGS:0000000000000000
Jul 26 09:15:27 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jul 26 09:15:27 kernel: CR2: 000056238cec2380 CR3: 0000003e49ede005 CR4: 0000000000760ee0
Jul 26 09:15:27 kernel: PKRU: 55555554
Jul 26 09:15:27 kernel: Call Trace:
Jul 26 09:15:27 kernel: <IRQ>
Jul 26 09:15:27 kernel: ? show_regs.cold+0x1a/0x1f
Jul 26 09:15:27 kernel: ? __warn+0x98/0xe0
Jul 26 09:15:27 kernel: ? tcp_send_loss_probe+0x214/0x220
Jul 26 09:15:27 kernel: ? report_bug+0xd1/0x100
Jul 26 09:15:27 kernel: ? do_error_trap+0x9b/0xc0
Jul 26 09:15:27 kernel: ? do_invalid_op+0x3c/0x50
Jul 26 09:15:27 kernel: ? tcp_send_loss_probe+0x214/0x220
Jul 26 09:15:27 kernel: ? invalid_op+0x1e/0x30
Jul 26 09:15:27 kernel: ? tcp_send_loss_probe+0x214/0x220
Jul 26 09:15:27 kernel: tcp_write_timer_handler+0x1b4/0x240
Jul 26 09:15:27 kernel: tcp_write_timer+0x9e/0xe0
Jul 26 09:15:27 kernel: ? tcp_write_timer_handler+0x240/0x240
Jul 26 09:15:27 kernel: call_timer_fn+0x32/0x130
Jul 26 09:15:27 kernel: __run_timers.part.0+0x180/0x280
Jul 26 09:15:27 kernel: ? timerqueue_add+0x9b/0xb0
Jul 26 09:15:27 kernel: ? enqueue_hrtimer+0x3d/0x90
Jul 26 09:15:27 kernel: ? do_error_trap+0x9b/0xc0
Jul 26 09:15:27 kernel: ? do_invalid_op+0x3c/0x50
Jul 26 09:15:27 kernel: ? tcp_send_loss_probe+0x214/0x220
Jul 26 09:15:27 kernel: ? invalid_op+0x1e/0x30
Jul 26 09:15:27 kernel: ? tcp_send_loss_probe+0x214/0x220
Jul 26 09:15:27 kernel: tcp_write_timer_handler+0x1b4/0x240
Jul 26 09:15:27 kernel: tcp_write_timer+0x9e/0xe0
Jul 26 09:15:27 kernel: ? tcp_write_timer_handler+0x240/0x240
Jul 26 09:15:27 kernel: call_timer_fn+0x32/0x130
Jul 26 09:15:27 kernel: __run_timers.part.0+0x180/0x280
Jul 26 09:15:27 kernel: ? timerqueue_add+0x9b/0xb0
Jul 26 09:15:27 kernel: ? enqueue_hrtimer+0x3d/0x90
Jul 26 09:15:27 kernel: ? recalibrate_cpu_khz+0x10/0x10
Jul 26 09:15:27 kernel: ? ktime_get+0x3e/0xa0
Jul 26 09:15:27 kernel: ? native_x2apic_icr_write+0x30/0x30
Jul 26 09:15:27 kernel: run_timer_softirq+0x2a/0x50
Jul 26 09:15:27 kernel: __do_softirq+0xd1/0x2c1
Jul 26 09:15:27 kernel: irq_exit+0xae/0xb0
Jul 26 09:15:27 kernel: smp_apic_timer_interrupt+0x7b/0x140
Jul 26 09:15:27 kernel: apic_timer_interrupt+0xf/0x20
Jul 26 09:15:27 kernel: </IRQ>
Jul 26 09:15:27 kernel: RIP: 0010:native_safe_halt+0xe/0x10
Jul 26 09:15:27 kernel: Code: 7b ff ff ff eb bd 90 90 90 90 90 90 e9 07 00 00 00 0f 00 2d 36 2c 50 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 26 2c 50 00 fb f4 <c3> 90 0f 1f 44 00 00 55 48 89 e5 41 55 41 54 53 e8 dd 5e 61 ff 65
Jul 26 09:15:27 kernel: RSP: 0018:ffffb783801cfe70 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
Jul 26 09:15:27 kernel: RAX: ffffffffa6908b20 RBX: 0000000000000010 RCX: 0000000000000001
Jul 26 09:15:27 kernel: RDX: 000000006fc0c97e RSI: 0000000000000082 RDI: 0000000000000082
Jul 26 09:15:27 kernel: RBP: ffffb783801cfe90 R08: 0000000000000000 R09: 0000000000000225
Jul 26 09:15:27 kernel: R10: 0000000000100000 R11: 0000000000000000 R12: 0000000000000010
Jul 26 09:15:27 kernel: R13: ffff9b8e390b0000 R14: 0000000000000000 R15: 0000000000000000
Jul 26 09:15:27 kernel: ? __cpuidle_text_start+0x8/0x8
Jul 26 09:15:27 kernel: ? default_idle+0x20/0x140
Jul 26 09:15:27 kernel: arch_cpu_idle+0x15/0x20
Jul 26 09:15:27 kernel: default_idle_call+0x23/0x30
Jul 26 09:15:27 kernel: do_idle+0x1fb/0x270
Jul 26 09:15:27 kernel: cpu_startup_entry+0x20/0x30
Jul 26 09:15:27 kernel: start_secondary+0x178/0x1d0
Jul 26 09:15:27 kernel: secondary_startup_64+0xa4/0xb0
Jul 26 09:15:27 kernel: ---[ end trace e7ac822987e33be1 ]---
The NULL ptr deref is coming from tcp_rto_delta_us() attempting to pull an skb
off the head of the retransmit queue and then dereferencing that skb to get the
skb_mstamp_ns value via tcp_skb_timestamp_us(skb).
The crash is the same one that was reported a # of years ago here:
https://lore.kernel.org/netdev/86c0f836-9a7c-438b-d81a-839be45f1f58@gmail.com/T/#t
and the kernel we're running has the fix which was added to resolve this issue.
Unfortunately we've been unsuccessful so far in reproducing this problem in the
lab and do not have the luxury of pushing out a new kernel to try and test if
newer kernels resolve this issue at the moment. I realize this is a report
against both an Ubuntu kernel and also an older 5.4 kernel. I have reported this
issue to Ubuntu here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2077657
however I feel like since this issue has possibly cropped up again it makes
sense to build in some protection in this path (even on the latest kernel
versions) since the code in question just blindly assumes there's a valid skb
without testing if it's NULL b/f it looks at the timestamp.
Given we have seen crashes in this path before and now this case it seems like
we should protect ourselves for when packets_out accounting is incorrect.
While we should fix that root cause we should also just make sure the skb
is not NULL before dereferencing it. Also add a warn once here to capture
some information if/when the problem case is hit again.
Fixes: e1a10ef7fa87 ("tcp: introduce tcp_rto_delta_us() helper for xmit timer fix")
Signed-off-by: Josh Hunt <johunt@akamai.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In order to allow Makefile to generate tomoyo.ko as output, rename
tomoyo.c to hooks.h and cut out LSM hook registration part that will be
built into vmlinux from hooks.h to init.c . Also, update comments and
relocate some variables. No behavior changes.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
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|
We should convert fs/fuse code to use a newly introduced
invalid_mnt_idmap instead of passing a NULL as idmap pointer.
Suggested-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
|
|
The correct macro name for creating a u32 array property entry is
PROPERTY_ENTRY_U32_ARRAY().
Reported-by: kernel test robot <lkp@intel.com>
Fixes: 1b05a7013751 ("ARM: spitz: Use software nodes/properties for the matrix keypad")
Closes: https://lore.kernel.org/oe-kbuild-all/202409230614.BBJikfMj-lkp@intel.com/
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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|
Link: https://lore.kernel.org/linux-fsdevel/20240904-baugrube-erhoben-b3c1c49a2645@brauner/
Suggested-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
|
|
Let's convert all existing callers properly.
No functional changes intended.
Suggested-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
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|
It was reported [1] that on linux-next/fs-next the following crash
is reproducible:
[ 42.659136] Oops: general protection fault, probably for non-canonical address 0xdffffc000000000b: 0000 [#1] PREEMPT SMP KASAN NOPTI
[ 42.660501] fbcon: Taking over console
[ 42.660930] KASAN: null-ptr-deref in range [0x0000000000000058-0x000000000000005f]
[ 42.661752] CPU: 1 UID: 0 PID: 1589 Comm: dtprobed Not tainted 6.11.0-rc6+ #1
[ 42.662565] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.6.6 08/22/2023
[ 42.663472] RIP: 0010:fuse_get_req+0x36b/0x990 [fuse]
[ 42.664046] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 8c 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6d 08 48 8d 7d 58 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 4d 05 00 00 f6 45 59 20 0f 85 06 03 00 00 48 83
[ 42.666945] RSP: 0018:ffffc900009a7730 EFLAGS: 00010212
[ 42.668837] RAX: dffffc0000000000 RBX: 1ffff92000134eed RCX: ffffffffc20dec9a
[ 42.670122] RDX: 000000000000000b RSI: 0000000000000008 RDI: 0000000000000058
[ 42.672154] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1022110172
[ 42.672160] R10: ffff888110880b97 R11: ffffc900009a737a R12: 0000000000000001
[ 42.672179] R13: ffff888110880b60 R14: ffff888110880b90 R15: ffff888169973840
[ 42.672186] FS: 00007f28cd21d7c0(0000) GS:ffff8883ef280000(0000) knlGS:0000000000000000
[ 42.672191] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 42.[ CR02: ;32m00007f3237366208 CR3: 0 OK 79e001 CR4: 0000000000770ef0
[ 42.672214] PKRU: 55555554
[ 42.672218] Call Trace:
[ 42.672223] <TASK>
[ 42.672226] ? die_addr+0x41/0xa0
[ 42.672238] ? exc_general_protection+0x14c/0x230
[ 42.672250] ? asm_exc_general_protection+0x26/0x30
[ 42.672260] ? fuse_get_req+0x77a/0x990 [fuse]
[ 42.672281] ? fuse_get_req+0x36b/0x990 [fuse]
[ 42.672300] ? kasan_unpoison+0x27/0x60
[ 42.672310] ? __pfx_fuse_get_req+0x10/0x10 [fuse]
[ 42.672327] ? srso_alias_return_thunk+0x5/0xfbef5
[ 42.672333] ? alloc_pages_mpol_noprof+0x195/0x440
[ 42.672340] ? srso_alias_return_thunk+0x5/0xfbef5
[ 42.672345] ? kasan_unpoison+0x27/0x60
[ 42.672350] ? srso_alias_return_thunk+0x5/0xfbef5
[ 42.672355] ? __kasan_slab_alloc+0x4d/0x90
[ 42.672362] ? srso_alias_return_thunk+0x5/0xfbef5
[ 42.672367] ? __kmalloc_cache_noprof+0x134/0x350
[ 42.672376] fuse_simple_background+0xe7/0x180 [fuse]
[ 42.672406] cuse_channel_open+0x540/0x710 [cuse]
[ 42.672415] misc_open+0x2a7/0x3a0
[ 42.672424] chrdev_open+0x1ef/0x5f0
[ 42.672432] ? __pfx_chrdev_open+0x10/0x10
[ 42.672439] ? srso_alias_return_thunk+0x5/0xfbef5
[ 42.672443] ? security_file_open+0x3bb/0x720
[ 42.672451] do_dentry_open+0x43d/0x1200
[ 42.672459] ? __pfx_chrdev_open+0x10/0x10
[ 42.672468] vfs_open+0x79/0x340
[ 42.672475] ? srso_alias_return_thunk+0x5/0xfbef5
[ 42.672482] do_open+0x68c/0x11e0
[ 42.672489] ? srso_alias_return_thunk+0x5/0xfbef5
[ 42.672495] ? __pfx_do_open+0x10/0x10
[ 42.672501] ? srso_alias_return_thunk+0x5/0xfbef5
[ 42.672506] ? open_last_lookups+0x2a2/0x1370
[ 42.672515] path_openat+0x24f/0x640
[ 42.672522] ? __pfx_path_openat+0x10/0x10
[ 42.723972] ? stack_depot_save_flags+0x45/0x4b0
[ 42.724787] ? __fput+0x43c/0xa70
[ 42.725100] do_filp_open+0x1b3/0x3e0
[ 42.725710] ? poison_slab_object+0x10d/0x190
[ 42.726145] ? __kasan_slab_free+0x33/0x50
[ 42.726570] ? __pfx_do_filp_open+0x10/0x10
[ 42.726981] ? do_syscall_64+0x64/0x170
[ 42.727418] ? entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 42.728018] ? srso_alias_return_thunk+0x5/0xfbef5
[ 42.728505] ? do_raw_spin_lock+0x131/0x270
[ 42.728922] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 42.729494] ? do_raw_spin_unlock+0x14c/0x1f0
[ 42.729992] ? srso_alias_return_thunk+0x5/0xfbef5
[ 42.730889] ? srso_alias_return_thunk+0x5/0xfbef5
[ 42.732178] ? alloc_fd+0x176/0x5e0
[ 42.732585] do_sys_openat2+0x122/0x160
[ 42.732929] ? __pfx_do_sys_openat2+0x10/0x10
[ 42.733448] ? srso_alias_return_thunk+0x5/0xfbef5
[ 42.734013] ? __pfx_map_id_up+0x10/0x10
[ 42.734482] ? srso_alias_return_thunk+0x5/0xfbef5
[ 42.735529] ? __memcg_slab_free_hook+0x292/0x500
[ 42.736131] __x64_sys_openat+0x123/0x1e0
[ 42.736526] ? __pfx___x64_sys_openat+0x10/0x10
[ 42.737369] ? __x64_sys_close+0x7c/0xd0
[ 42.737717] ? srso_alias_return_thunk+0x5/0xfbef5
[ 42.738192] ? syscall_trace_enter+0x11e/0x1b0
[ 42.738739] do_syscall_64+0x64/0x170
[ 42.739113] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 42.739638] RIP: 0033:0x7f28cd13e87b
[ 42.740038] Code: 25 00 00 41 00 3d 00 00 41 00 74 4b 64 8b 04 25 18 00 00 00 85 c0 75 67 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 91 00 00 00 48 8b 54 24 28 64 48 2b 14 25
[ 42.741943] RSP: 002b:00007ffc992546c0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
[ 42.742951] RAX: ffffffffffffffda RBX: 00007f28cd44f1ee RCX: 00007f28cd13e87b
[ 42.743660] RDX: 0000000000000002 RSI: 00007f28cd44f2fa RDI: 00000000ffffff9c
[ 42.744518] RBP: 00007f28cd44f2fa R08: 0000000000000000 R09: 0000000000000001
[ 42.745211] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 42.745920] R13: 00007f28cd44f2fa R14: 0000000000000000 R15: 0000000000000003
[ 42.746708] </TASK>
[ 42.746937] Modules linked in: cuse vfat fat ext4 mbcache jbd2 intel_rapl_msr intel_rapl_common kvm_amd ccp bochs drm_vram_helper kvm drm_ttm_helper ttm pcspkr i2c_piix4 drm_kms_helper i2c_smbus pvpanic_mmio pvpanic joydev sch_fq_codel drm fuse xfs nvme_tcp nvme_fabrics nvme_core sd_mod sg virtio_net net_failover virtio_scsi failover crct10dif_pclmul crc32_pclmul ata_generic pata_acpi ata_piix ghash_clmulni_intel virtio_pci sha512_ssse3 virtio_pci_legacy_dev sha256_ssse3 virtio_pci_modern_dev sha1_ssse3 libata serio_raw dm_multipath btrfs blake2b_generic xor zstd_compress raid6_pq sunrpc dm_mirror dm_region_hash dm_log dm_mod be2iscsi bnx2i cnic uio cxgb4i cxgb4 tls cxgb3i cxgb3 mdio libcxgbi libcxgb qla4xxx iscsi_boot_sysfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi qemu_fw_cfg aesni_intel crypto_simd cryptd
[ 42.754333] ---[ end trace 0000000000000000 ]---
[ 42.756899] RIP: 0010:fuse_get_req+0x36b/0x990 [fuse]
[ 42.757851] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 8c 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6d 08 48 8d 7d 58 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 4d 05 00 00 f6 45 59 20 0f 85 06 03 00 00 48 83
[ 42.760334] RSP: 0018:ffffc900009a7730 EFLAGS: 00010212
[ 42.760940] RAX: dffffc0000000000 RBX: 1ffff92000134eed RCX: ffffffffc20dec9a
[ 42.761697] RDX: 000000000000000b RSI: 0000000000000008 RDI: 0000000000000058
[ 42.763009] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1022110172
[ 42.763920] R10: ffff888110880b97 R11: ffffc900009a737a R12: 0000000000000001
[ 42.764839] R13: ffff888110880b60 R14: ffff888110880b90 R15: ffff888169973840
[ 42.765716] FS: 00007f28cd21d7c0(0000) GS:ffff8883ef280000(0000) knlGS:0000000000000000
[ 42.766890] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 42.767828] CR2: 00007f3237366208 CR3: 000000012c79e001 CR4: 0000000000770ef0
[ 42.768730] PKRU: 55555554
[ 42.769022] Kernel panic - not syncing: Fatal exception
[ 42.770758] Kernel Offset: 0x7200000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 42.771947] ---[ end Kernel panic - not syncing: Fatal exception ]---
It's obviously CUSE related callstack. For CUSE case, we don't have superblock and
our checks for SB_I_NOIDMAP flag does not make any sense. Let's handle this case gracefully.
Fixes: aa16880d9f13 ("fuse: add basic infrastructure to support idmappings")
Link: https://lore.kernel.org/linux-next/87v7z586py.fsf@debian-BULLSEYE-live-builder-AMD64/ [1]
Reported-by: Chandan Babu R <chandanbabu@kernel.org>
Reported-by: syzbot+20c7e20cc8f5296dca12@syzkaller.appspotmail.com
Signed-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
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|
ep93xx_eth.c:805:40: sparse: sparse: incorrect type in argument 2
(different address spaces)
ep93xx_eth.c:805:40: sparse: expected unsigned char const [usertype] *addr
ep93xx_eth.c:805:40: sparse: got void [noderef] __iomem *
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202409212354.9CiUem7B-lkp@intel.com/
Fixes: 858555bb5598 ("net: cirrus: add DT support for Cirrus EP93xx")
Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me>
Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
|
|
While using the IOMMU DMA path, the dma_addressing_limited() function
checks ops struct which doesn't exist in the IOMMU case. This causes
to the kernel panic while loading ADMGPU driver.
BUG: kernel NULL pointer dereference, address: 00000000000000a0
PGD 0 P4D 0
Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI
CPU: 10 UID: 0 PID: 611 Comm: (udev-worker) Tainted: G T 6.11.0-clang-07154-g726e2d0cf2bb #257
Tainted: [T]=RANDSTRUCT
Hardware name: ASUS System Product Name/ROG STRIX Z690-G GAMING WIFI, BIOS 3701 07/03/2024
RIP: 0010:dma_addressing_limited+0x53/0xa0
Code: 8b 93 48 02 00 00 48 39 d1 49 89 d6 4c 0f 42 f1 48 85 d2 4c 0f 44 f1 f6 83 fc 02 00 00 40 75 0a 48 89 df e8 1f 09 00 00 eb 24 <4c> 8b 1c 25 a0 00 00 00 4d 85 db 74 17 48 89 df 41 ba 8b 84 2d 55
RSP: 0018:ffffa8d2c12cf740 EFLAGS: 00010202
RAX: 00000000ffffffff RBX: ffff8948820220c8 RCX: 000000ffffffffff
RDX: 0000000000000000 RSI: ffffffffc124dc6d RDI: ffff8948820220c8
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff894883c3f040
R13: ffff89488dac8828 R14: 000000ffffffffff R15: ffff8948820220c8
FS: 00007fe6ba881900(0000) GS:ffff894fdf700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000000a0 CR3: 0000000111984000 CR4: 0000000000f50ef0
PKRU: 55555554
Call Trace:
<TASK>
? __die_body+0x65/0xc0
? page_fault_oops+0x3b9/0x450
? _prb_read_valid+0x212/0x390
? do_user_addr_fault+0x608/0x680
? exc_page_fault+0x4e/0xa0
? asm_exc_page_fault+0x26/0x30
? dma_addressing_limited+0x53/0xa0
amdgpu_ttm_init+0x56/0x4b0 [amdgpu]
gmc_v8_0_sw_init+0x561/0x670 [amdgpu]
amdgpu_device_ip_init+0xf5/0x570 [amdgpu]
amdgpu_device_init+0x1a57/0x1ea0 [amdgpu]
? _raw_spin_unlock_irqrestore+0x1a/0x40
? pci_conf1_read+0xc0/0xe0
? pci_bus_read_config_word+0x52/0xa0
amdgpu_driver_load_kms+0x15/0xa0 [amdgpu]
amdgpu_pci_probe+0x1b7/0x4c0 [amdgpu]
pci_device_probe+0x1c5/0x260
really_probe+0x130/0x470
__driver_probe_device+0x77/0x150
driver_probe_device+0x19/0x120
__driver_attach+0xb1/0x1e0
? __cfi___driver_attach+0x10/0x10
bus_for_each_dev+0x115/0x170
bus_add_driver+0x192/0x2d0
driver_register+0x5c/0xf0
? __cfi_init_module+0x10/0x10 [amdgpu]
do_one_initcall+0x128/0x380
? idr_alloc_cyclic+0x139/0x1d0
? security_kernfs_init_security+0x42/0x140
? __kernfs_new_node+0x1be/0x250
? sysvec_apic_timer_interrupt+0xb6/0xc0
? asm_sysvec_apic_timer_interrupt+0x1a/0x20
? _raw_spin_unlock+0x11/0x30
? free_unref_page+0x283/0x650
? kfree+0x274/0x3a0
? kfree+0x274/0x3a0
? kfree+0x274/0x3a0
? load_module+0xf2e/0x1130
? __kmalloc_cache_noprof+0x12a/0x2e0
do_init_module+0x7d/0x240
__se_sys_init_module+0x19e/0x220
do_syscall_64+0x8a/0x150
? __irq_exit_rcu+0x5e/0x100
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fe6bb5980ee
Code: 48 8b 0d 3d ed 12 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 49 89 ca b8 af 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 0a ed 12 00 f7 d8 64 89 01 48
RSP: 002b:00007ffd462219d8 EFLAGS: 00000206 ORIG_RAX: 00000000000000af
RAX: ffffffffffffffda RBX: 0000556caf0d0670 RCX: 00007fe6bb5980ee
RDX: 0000556caf0d3080 RSI: 0000000002893458 RDI: 00007fe6b3400010
RBP: 0000000000020000 R08: 0000000000020010 R09: 0000000000000080
R10: c26073c166186e00 R11: 0000000000000206 R12: 0000556caf0d3430
R13: 0000556caf0d0670 R14: 0000556caf0d3080 R15: 0000556caf0ce700
</TASK>
Modules linked in: amdgpu(+) i915(+) drm_suballoc_helper intel_gtt drm_exec drm_buddy iTCO_wdt i2c_algo_bit intel_pmc_bxt drm_display_helper iTCO_vendor_support gpu_sched drm_ttm_helper cec ttm amdxcp video backlight pinctrl_alderlake nct6775 hwmon_vid nct6775_core coretemp
CR2: 00000000000000a0
---[ end trace 0000000000000000 ]---
RIP: 0010:dma_addressing_limited+0x53/0xa0
Code: 8b 93 48 02 00 00 48 39 d1 49 89 d6 4c 0f 42 f1 48 85 d2 4c 0f 44 f1 f6 83 fc 02 00 00 40 75 0a 48 89 df e8 1f 09 00 00 eb 24 <4c> 8b 1c 25 a0 00 00 00 4d 85 db 74 17 48 89 df 41 ba 8b 84 2d 55
RSP: 0018:ffffa8d2c12cf740 EFLAGS: 00010202
RAX: 00000000ffffffff RBX: ffff8948820220c8 RCX: 000000ffffffffff
RDX: 0000000000000000 RSI: ffffffffc124dc6d RDI: ffff8948820220c8
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff894883c3f040
R13: ffff89488dac8828 R14: 000000ffffffffff R15: ffff8948820220c8
FS: 00007fe6ba881900(0000) GS:ffff894fdf700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000000a0 CR3: 0000000111984000 CR4: 0000000000f50ef0
PKRU: 55555554
Fixes: b5c58b2fdc42 ("dma-mapping: direct calls for dma-iommu")
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=219292
Reported-by: Niklāvs Koļesņikovs <pinkflames.linux@gmail.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Niklāvs Koļesņikovs <pinkflames.linux@gmail.com>
|
|
Create a kernel documentation to describe how the CXL shared upstream
link bandwidth is calculated.
Suggested-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Link: https://patch.msgid.link/20240904001316.1688225-4-dave.jiang@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
|
|
The current bandwidth calculation aggregates all the targets. This simple
method does not take into account where multiple targets sharing under
a switch or a root port where the aggregated bandwidth can be greater than
the upstream link of the switch.
To accurately account for the shared upstream uplink cases, a new update
function is introduced by walking from the leaves to the root of the
hierarchy and clamp the bandwidth in the process as needed. This process
is done when all the targets for a region are present but before the
final values are send to the HMAT handling code cached access_coordinate
targets.
The original perf calculation path was kept to calculate the latency
performance data that does not require the shared link consideration.
The shared upstream link calculation is done as a second pass when all
the endpoints have arrived.
Testing is done via qemu with CXL hierarchy. run_qemu[1] is modified to
support several CXL hierarchy layouts. The following layouts are tested:
HB: Host Bridge
RP: Root Port
SW: Switch
EP: End Point
2 HB 2 RP 2 EP: resulting bandwidth: 624
1 HB 2 RP 2 EP: resulting bandwidth: 624
2 HB 2 RP 2 SW 4 EP: resulting bandwidth: 624
Current testing, perf number from SRAT/HMAT is hacked into the kernel
code. However with new QEMU support of Generic Target Port that's
incoming, the perf data injection is no longer needed.
[1]: https://github.com/pmem/run_qemu
Suggested-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Link: https://lore.kernel.org/linux-cxl/20240501152503.00002e60@Huawei.com/
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Link: https://patch.msgid.link/20240904001316.1688225-3-dave.jiang@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
|
|
Keep the access_coordinate from the CDAT tables for region perf
calculations. The region perf calculation requires all participating
endpoints to have arrived in order to determine if there are limitations
of bandwidth data due to shared uplink.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Link: https://patch.msgid.link/20240904001316.1688225-2-dave.jiang@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
|
|
Document the Inter-Processor Communication Controller on the Qualcomm
QCS8300 Platform, which will be used to route interrupts across various
subsystems found on the SoC.
Signed-off-by: Jingyi Wang <quic_jingyw@quicinc.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
|
|
Add a compatible for the ipcc on SA8255p platforms.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Nikunj Kela <quic_nkela@quicinc.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
|
|
Add compatible string for ADSP mailbox on MT8188 SoC, which is
compatible with the one used on MT8186.
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Fei Shao <fshao@chromium.org>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
|
|
Use of_property_match_string() instead of open-coding the search. With
this, of_get_property() can be removed as there is no need to check for
"mbox-names" presence first.
This is part of a larger effort to remove callers of of_get_property()
and similar functions. of_get_property() leaks the DT property data
pointer which is a problem for dynamically allocated nodes which may
be freed.
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
|
|
During noirq suspend phase the Raspberry Pi power driver suffer of
firmware property timeouts. The reason is that the IRQ of the underlying
BCM2835 mailbox is disabled and rpi_firmware_property_list() will always
run into a timeout [1].
Since the VideoCore side isn't consider as a wakeup source, set the
IRQF_NO_SUSPEND flag for the mailbox IRQ in order to keep it enabled
during suspend-resume cycle.
[1]
PM: late suspend of devices complete after 1.754 msecs
WARNING: CPU: 0 PID: 438 at drivers/firmware/raspberrypi.c:128
rpi_firmware_property_list+0x204/0x22c
Firmware transaction 0x00028001 timeout
Modules linked in:
CPU: 0 PID: 438 Comm: bash Tainted: G C 6.9.3-dirty #17
Hardware name: BCM2835
Call trace:
unwind_backtrace from show_stack+0x18/0x1c
show_stack from dump_stack_lvl+0x34/0x44
dump_stack_lvl from __warn+0x88/0xec
__warn from warn_slowpath_fmt+0x7c/0xb0
warn_slowpath_fmt from rpi_firmware_property_list+0x204/0x22c
rpi_firmware_property_list from rpi_firmware_property+0x68/0x8c
rpi_firmware_property from rpi_firmware_set_power+0x54/0xc0
rpi_firmware_set_power from _genpd_power_off+0xe4/0x148
_genpd_power_off from genpd_sync_power_off+0x7c/0x11c
genpd_sync_power_off from genpd_finish_suspend+0xcc/0xe0
genpd_finish_suspend from dpm_run_callback+0x78/0xd0
dpm_run_callback from device_suspend_noirq+0xc0/0x238
device_suspend_noirq from dpm_suspend_noirq+0xb0/0x168
dpm_suspend_noirq from suspend_devices_and_enter+0x1b8/0x5ac
suspend_devices_and_enter from pm_suspend+0x254/0x2e4
pm_suspend from state_store+0xa8/0xd4
state_store from kernfs_fop_write_iter+0x154/0x1a0
kernfs_fop_write_iter from vfs_write+0x12c/0x184
vfs_write from ksys_write+0x78/0xc0
ksys_write from ret_fast_syscall+0x0/0x54
Exception stack(0xcc93dfa8 to 0xcc93dff0)
[...]
PM: noirq suspend of devices complete after 3095.584 msecs
Link: https://github.com/raspberrypi/firmware/issues/1894
Fixes: 0bae6af6d704 ("mailbox: Enable BCM2835 mailbox support")
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
|
|
The devm_clk_get_enabled() helpers:
- call devm_clk_get()
- call clk_prepare_enable() and register what is needed in order to
call clk_disable_unprepare() when needed, as a managed resource.
This simplifies the code and avoids the calls to clk_disable_unprepare().
Due to clk only used in probe, not in suspend\resume, this pointer can
remove from sprd_mbox_priv to save a little memory.
Signed-off-by: Huan Yang <link@vivo.com>
Reviewed-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
|
|
MODULE_DEVICE_TABLE(of, rockchip_mbox_of_match) could let the module
properly autoloaded based on the alias from of_device_id table. It
should be 'rockchip_mbox_of_match' instead of 'rockchp_mbox_of_match',
just fix it.
Fixes: f70ed3b5dc8b ("mailbox: rockchip: Add Rockchip mailbox driver")
Signed-off-by: Liao Chen <liaochen4@huawei.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
|
|
There are several MUs for different usage, SCMI MU, ELE MU, RemotePROC
MU. Using "imx_mu_chan" in interrupt name would be hard to identify
which MU triggers interrupt, so use device name to make it easy to know
which MU triggers which interrupt.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
|
|
The ARM MHUv3 controller is only present on ARM64 SoCs. Hence add a
dependency on ARM64, to prevent asking the user about this driver when
configuring a kernel for a different architecture than ARM64.
Fixes: ca1a8680b134b5e6 ("mailbox: arm_mhuv3: Add driver")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
|
|
Many architectures support load acquire which can replace a memory
barrier and save some cycles.
A typical sequence
do {
seq = read_seqcount_begin(&s);
<something>
} while (read_seqcount_retry(&s, seq);
requires 13 cycles on an N1 Neoverse arm64 core (Ampere Altra, to be
specific) for an empty loop. Two read memory barriers are needed. One
for each of the seqcount_* functions.
We can replace the first read barrier with a load acquire of the
seqcount which saves us one barrier.
On the Altra doing so reduces the cycle count from 13 to 8.
According to ARM, this is a general improvement for the ARM64
architecture and not specific to a certain processor.
See
https://developer.arm.com/documentation/102336/0100/Load-Acquire-and-Store-Release-instructions
"Weaker ordering requirements that are imposed by Load-Acquire and
Store-Release instructions allow for micro-architectural
optimizations, which could reduce some of the performance impacts that
are otherwise imposed by an explicit memory barrier.
If the ordering requirement is satisfied using either a Load-Acquire
or Store-Release, then it would be preferable to use these
instructions instead of a DMB"
[ NOTE! This is my original minimal patch that unconditionally switches
over to using smp_load_acquire(), instead of the much more involved
and subtle patch that Christoph Lameter wrote that made it
conditional.
But Christoph gets authorship credit because I had initially thought
that we needed the more complex model, and Christoph ran with it it
and did the work. Only after looking at code generation for all the
relevant architectures, did I come to the conclusion that nobody
actually really needs the old "smp_rmb()" model.
Even architectures without load-acquire support generally do as well
or better with smp_load_acquire().
So credit to Christoph, but if this then causes issues on other
architectures, put the blame solidly on me.
Also note as part of the ruthless simplification, this gets rid of the
overly subtle optimization where some code uses a non-barrier version
of the sequence count (see the __read_seqcount_begin() users in
fs/namei.c). They then play games with their own barriers and/or with
nested sequence counts.
Those optimizations are literally meaningless on x86, and questionable
elsewhere. If somebody can show that they matter, we need to re-do
them more cleanly than "use an internal helper". - Linus ]
Signed-off-by: Christoph Lameter (Ampere) <cl@gentwo.org>
Link: https://lore.kernel.org/all/20240912-seq_optimize-v3-1-8ee25e04dffa@gentwo.org/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Commit aa58bec064ab ("net: ethernet: oa_tc6: implement register write
operation") adds two new file entries to OPEN ALLIANCE 10BASE-T1S MACPHY
SERIAL INTERFACE FRAMEWORK. One of the two entries mistakenly refers
to drivers/include/linux/oa_tc6.h, whereas the intent is clearly to refer
to include/linux/oa_tc6.h.
Hence, ./scripts/get_maintainer.pl --self-test=patterns complains about a
broken reference. Adjust the file entry to the intended location.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@redhat.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
The rpl sr tunnel code contains calls to dst_cache_*() which are
only present when the dst cache is built.
Select DST_CACHE to build the dst cache, similar to other kconfig
options in the same file.
Compiling the rpl sr tunnel without DST_CACHE will lead to linker
errors.
Fixes: a7a29f9c361f ("net: ipv6: add rpl sr tunnel")
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Simon Horman <horms@kernel.org> # build-tested
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Merge user access fast validation using address masking.
This allows architectures to optionally use a data dependent address
masking model instead of a conditional branch for validating user
accesses. That avoids the Spectre-v1 speculation barriers.
Right now only x86-64 takes advantage of this, and not all architectures
will be able to do it. It requires a guard region between the user and
kernel address spaces (so that you can't overflow from one to the
other), and an easy way to generate a guaranteed-to-fault address for
invalid user pointers.
Also note that this currently assumes that there is no difference
between user read and write accesses. If extended to architectures like
powerpc, we'll also need to separate out the user read-vs-write cases.
* address-masking:
x86: make the masked_user_access_begin() macro use its argument only once
x86: do the user address masking outside the user access area
x86: support user address masking instead of non-speculative conditional
|
|
This doesn't actually matter for any of the current users, but before
merging it mainline, make sure we don't have any surprising semantics.
We don't actually want to use an inline function here, because we want
to allow - but not require - const pointer arguments, and return them as
such. But we already had a local auto-type variable, so let's just use
it to avoid any possible double evaluation.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
The direct calls from mapping.c all guarded by use_dma_iommu(), so don't
bother to provide stubs, but instead just expose the prototypes
unconditionally.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Leon Romanovsky <leon@kernel.org>
|
|
Commit b5c58b2fdc42 ("dma-mapping: direct calls for dma-iommu") switched
to use direct calls to dma-iommu, but missed the dma_vmap_noncontiguous,
dma_vunmap_noncontiguous and dma_mmap_noncontiguous behavior keyed off the
presence of the alloc_noncontiguous method.
Fix this by removing the now unused alloc_noncontiguous and
free_noncontiguous methods and moving the vmapping and mmaping of the
noncontiguous allocations into the iommu code, as it is the only provider
of actually noncontiguous allocations.
Fixes: b5c58b2fdc42 ("dma-mapping: direct calls for dma-iommu")
Reported-by: Xi Ruoyao <xry111@xry111.site>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Leon Romanovsky <leon@kernel.org>
Tested-by: Xi Ruoyao <xry111@xry111.site>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull ring-buffer updates from Steven Rostedt:
- tracing/ring-buffer: persistent buffer across reboots
This allows for the tracing instance ring buffer to stay persistent
across reboots. The way this is done is by adding to the kernel
command line:
trace_instance=boot_map@0x285400000:12M
This will reserve 12 megabytes at the address 0x285400000, and then
map the tracing instance "boot_map" ring buffer to that memory. This
will appear as a normal instance in the tracefs system:
/sys/kernel/tracing/instances/boot_map
A user could enable tracing in that instance, and on reboot or kernel
crash, if the memory is not wiped by the firmware, it will recreate
the trace in that instance. For example, if one was debugging a
shutdown of a kernel reboot:
# cd /sys/kernel/tracing
# echo function > instances/boot_map/current_tracer
# reboot
[..]
# cd /sys/kernel/tracing
# tail instances/boot_map/trace
swapper/0-1 [000] d..1. 164.549800: restore_boot_irq_mode <-native_machine_shutdown
swapper/0-1 [000] d..1. 164.549801: native_restore_boot_irq_mode <-native_machine_shutdown
swapper/0-1 [000] d..1. 164.549802: disconnect_bsp_APIC <-native_machine_shutdown
swapper/0-1 [000] d..1. 164.549811: hpet_disable <-native_machine_shutdown
swapper/0-1 [000] d..1. 164.549812: iommu_shutdown_noop <-native_machine_restart
swapper/0-1 [000] d..1. 164.549813: native_machine_emergency_restart <-__do_sys_reboot
swapper/0-1 [000] d..1. 164.549813: tboot_shutdown <-native_machine_emergency_restart
swapper/0-1 [000] d..1. 164.549820: acpi_reboot <-native_machine_emergency_restart
swapper/0-1 [000] d..1. 164.549821: acpi_reset <-acpi_reboot
swapper/0-1 [000] d..1. 164.549822: acpi_os_write_port <-acpi_reboot
On reboot, the buffer is examined to make sure it is valid. The
validation check even steps through every event to make sure the meta
data of the event is correct. If any test fails, it will simply reset
the buffer, and the buffer will be empty on boot.
- Allow the tracing persistent boot buffer to use the "reserve_mem"
option
Instead of having the admin find a physical address to store the
persistent buffer, which can be very tedious if they have to
administrate several different machines, allow them to use the
"reserve_mem" option that will find a location for them. It is not as
reliable because of KASLR, as the loading of the kernel in different
locations can cause the memory allocated to be inconsistent. Booting
with "nokaslr" can make reserve_mem more reliable.
- Have function graph tracer handle offsets from a previous boot.
The ring buffer output from a previous boot may have different
addresses due to kaslr. Have the function graph tracer handle these
by using the delta from the previous boot to the new boot address
space.
- Only reset the saved meta offset when the buffer is started or reset
In the persistent memory meta data, it holds the previous address
space information, so that it can calculate the delta to have
function tracing work. But this gets updated after being read to hold
the new address space. But if the buffer isn't used for that boot, on
reboot, the delta is now calculated from the previous boot and not
the boot that holds the data in the ring buffer. This causes the
functions not to be shown. Do not save the address space information
of the current kernel until it is being recorded.
- Add a magic variable to test the valid meta data
Add a magic variable in the meta data that can also be used for
validation. The validator of the previous buffer doesn't need this
magic data, but it can be used if the meta data is changed by a new
kernel, which may have the same format that passes the validator but
is used differently. This magic number can also be used as a
"versioning" of the meta data.
- Align user space mapped ring buffer sub buffers to improve TLB
entries
Linus mentioned that the mapped ring buffer sub buffers were
misaligned between the meta page and the sub-buffers, so that if the
sub-buffers were bigger than PAGE_SIZE, it wouldn't allow the TLB to
use bigger entries.
- Add new kernel command line "traceoff" to disable tracing on boot for
instances
If tracing is enabled for a boot instance, there needs a way to be
able to disable it on boot so that new events do not get entered into
the ring buffer and be mixed with events from a previous boot, as
that can be confusing.
- Allow trace_printk() to go to other instances
Currently, trace_printk() can only go to the top level instance. When
debugging with a persistent buffer, it is really useful to be able to
add trace_printk() to go to that buffer, so that you have access to
them after a crash.
- Do not use "bin_printk()" for traces to a boot instance
The bin_printk() saves only a pointer to the printk format in the
ring buffer, as the reader of the buffer can still have access to it.
But this is not the case if the buffer is from a previous boot. If
the trace_printk() is going to a "persistent" buffer, it will use the
slower version that writes the printk format into the buffer.
- Add command line option to allow trace_printk() to go to an instance
Allow the kernel command line to define which instance the
trace_printk() goes to, instead of forcing the admin to set it for
every boot via the tracefs options.
- Start a document that explains how to use tracefs to debug the kernel
- Add some more kernel selftests to test user mapped ring buffer
* tag 'trace-ring-buffer-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (28 commits)
selftests/ring-buffer: Handle meta-page bigger than the system
selftests/ring-buffer: Verify the entire meta-page padding
tracing/Documentation: Start a document on how to debug with tracing
tracing: Add option to set an instance to be the trace_printk destination
tracing: Have trace_printk not use binary prints if boot buffer
tracing: Allow trace_printk() to go to other instance buffers
tracing: Add "traceoff" flag to boot time tracing instances
ring-buffer: Align meta-page to sub-buffers for improved TLB usage
ring-buffer: Add magic and struct size to boot up meta data
ring-buffer: Don't reset persistent ring-buffer meta saved addresses
tracing/fgraph: Have fgraph handle previous boot function addresses
tracing: Allow boot instances to use reserve_mem boot memory
tracing: Fix ifdef of snapshots to not prevent last_boot_info file
ring-buffer: Use vma_pages() helper function
tracing: Fix NULL vs IS_ERR() check in enable_instances()
tracing: Add last boot delta offset for stack traces
tracing: Update function tracing output for previous boot buffer
tracing: Handle old buffer mappings for event strings and functions
tracing/ring-buffer: Add last_boot_info file to boot instance
ring-buffer: Save text and data locations in mapped meta data
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest
Pull ktest updates from Steven Rostedt:
- Add notification of build warnings for all tests
Currently, the build will only fail on warnings if the ktest config
file states that it should fail or if the compile is done with
'-Werror'. This has allowed warnings to sneak in if it doesn't fail.
Add a notification at the end of the test that will state that
warnings were found in the build so that the developer will be aware
of it.
- Fix the grub2 parser to not return the wrong kernel index
ktest.pl can read the grub.cfg file to know what kernel to boot to
via grub-reboot. This requires knowing the index that the kernel is
referenced by in the grub.cfg file. Some distros have logic to
determine the menuentry that can cause the ktest.pl to come up with
the wrong index and boot the wrong kernel.
* tag 'ktest-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest.pl: Avoid false positives with grub2 skip regex
ktest.pl: Always warn on build warnings
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git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools
Pull perf tools updates from Arnaldo Carvalho de Melo:
- Use BPF + BTF to collect and pretty print syscall and tracepoint
arguments in 'perf trace', done as an GSoC activity
- Data-type profiling improvements:
- Cache debuginfo to speed up data type resolution
- Add the 'typecln' sort order, to show which cacheline in a target
is hot or cold. The following shows members in the cfs_rq's first
cache line:
$ perf report -s type,typecln,typeoff -H
...
- 2.67% struct cfs_rq
+ 1.23% struct cfs_rq: cache-line 2
+ 0.57% struct cfs_rq: cache-line 4
+ 0.46% struct cfs_rq: cache-line 6
- 0.41% struct cfs_rq: cache-line 0
0.39% struct cfs_rq +0x14 (h_nr_running)
0.02% struct cfs_rq +0x38 (tasks_timeline.rb_leftmost)
- When a typedef resolves to a unnamed struct, use the typedef name
- When a struct has just one basic type field (int, etc), resolve
the type sort order to the name of the struct, not the type of
the field
- Support type folding/unfolding in the data-type annotation TUI
- Fix bitfields offsets and sizes
- Initial support for PowerPC, using libcapstone and the usual
objdump disassembly parsing routines
- Add support for disassembling and addr2line using the LLVM libraries,
speeding up those operations
- Support --addr2line option in 'perf script' as with other tools
- Intel branch counters (LBR event logging) support, only available in
recent Intel processors, for instance, the new "brcntr" field can be
asked from 'perf script' to print the information collected from this
feature:
$ perf script -F +brstackinsn,+brcntr
# Branch counter abbr list:
# branch-instructions:ppp = A
# branch-misses = B
# '-' No event occurs
# '+' Event occurrences may be lost due to branch counter saturated
tchain_edit 332203 3366329.405674: 53030 branch-instructions:ppp: 401781 f3+0x2c (home/sdp/test/tchain_edit)
f3+31:
0000000000401774 insn: eb 04 br_cntr: AA # PRED 5 cycles [5]
000000000040177a insn: 81 7d fc 0f 27 00 00
0000000000401781 insn: 7e e3 br_cntr: A # PRED 1 cycles [6] 2.00 IPC
0000000000401766 insn: 8b 45 fc
0000000000401769 insn: 83 e0 01
000000000040176c insn: 85 c0
000000000040176e insn: 74 06 br_cntr: A # PRED 1 cycles [7] 4.00 IPC
0000000000401776 insn: 83 45 fc 01
000000000040177a insn: 81 7d fc 0f 27 00 00
0000000000401781 insn: 7e e3 br_cntr: A # PRED 7 cycles [14] 0.43 IPC
- Support Timed PEBS (Precise Event-Based Sampling), a recent hardware
feature in Intel processors
- Add 'perf ftrace profile' subcommand, using ftrace's function-graph
tracer so that users can see the total, average, max execution time
as well as the number of invocations easily, for instance:
$ sudo perf ftrace profile -G __x64_sys_perf_event_open -- \
perf stat -e cycles -C1 true 2> /dev/null | head
# Total (us) Avg (us) Max (us) Count Function
65.611 65.611 65.611 1 __x64_sys_perf_event_open
30.527 30.527 30.527 1 anon_inode_getfile
30.260 30.260 30.260 1 __anon_inode_getfile
29.700 29.700 29.700 1 alloc_file_pseudo
17.578 17.578 17.578 1 d_alloc_pseudo
17.382 17.382 17.382 1 __d_alloc
16.738 16.738 16.738 1 kmem_cache_alloc_lru
15.686 15.686 15.686 1 perf_event_alloc
14.012 7.006 11.264 2 obj_cgroup_charge
- 'perf sched timehist' improvements, including the addition of
priority showing/filtering command line options
- Varios improvements to the 'perf probe', including 'perf test'
regression testings
- Introduce the 'perf check', initially to check if some feature is
in place, using it in 'perf test'
- Various fixes for 32-bit systems
- Address more leak sanitizer failures
- Fix memory leaks (LBR, disasm lock ops, etc)
- More reference counting fixes (branch_info, etc)
- Constify 'struct perf_tool' parameters to improve code generation
and reduce the chances of having its internals changed, which isn't
expected
- More constifications in various other places
- Add more build tests, including for JEVENTS
- Add more 'perf test' entries ('perf record LBR', pipe/inject,
--setup-filter, 'perf ftrace', 'cgroup sampling', etc)
- Inject build ids for all entries in a call chain in 'perf inject',
not just for the main sample
- Improve the BPF based sample filter, allowing root to setup filters
in bpffs that then can be used by non-root users
- Allow filtering by cgroups with the BPF based sample filter
- Allow a more compact way for 'perf mem report' using the
-T/--type-profile and also provide a --sort option similar to the one
in 'perf report', 'perf top', to setup the sort order manually
- Fix --group behavior in 'perf annotate' when leader has no samples,
where it was not showing anything even when other events in the group
had samples
- Fix spinlock and rwlock accounting in 'perf lock contention'
- Fix libsubcmd fixdep Makefile dependencies
- Improve 'perf ftrace' error message when ftrace isn't available
- Update various Intel JSON vendor event files
- ARM64 CoreSight hardware tracing infrastructure improvements, mostly
not visible to users
- Update power10 JSON events
* tag 'perf-tools-for-v6.12-1-2024-09-19' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: (310 commits)
perf trace: Mark the 'head' arg in the set_robust_list syscall as coming from user space
perf trace: Mark the 'rseq' arg in the rseq syscall as coming from user space
perf env: Find correct branch counter info on hybrid
perf evlist: Print hint for group
tools: Drop nonsensical -O6
perf pmu: To info add event_type_desc
perf evsel: Add accessor for tool_event
perf pmus: Fake PMU clean up
perf list: Avoid potential out of bounds memory read
perf help: Fix a typo ("bellow")
perf ftrace: Detect whether ftrace is enabled on system
perf test shell probe_vfs_getname: Remove extraneous '=' from probe line number regex
perf build: Require at least clang 16.0.6 to build BPF skeletons
perf trace: If a syscall arg is marked as 'const', assume it is coming _from_ userspace
perf parse-events: Remove duplicated include in parse-events.c
perf callchain: Allow symbols to be optional when resolving a callchain
perf inject: Lazy build-id mmap2 event insertion
perf inject: Add new mmap2-buildid-all option
perf inject: Fix build ID injection
perf annotate-data: Add pr_debug_scope()
...
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The below warning is triggered when building with arm
multi_v7_defconfig.
kernel/events/core.c: In function 'perf_event_setup_cpumask':
kernel/events/core.c:14012:13: warning: the comparison will always evaluate as 'true' for the address of 'thread_sibling' will never be NULL [-Waddress]
14012 | if (!topology_sibling_cpumask(cpu)) {
The perf_event_init_cpu() may be invoked at the early boot stage, while
the topology_*_cpumask hasn't been initialized yet. The check is to
specially handle the case, and initialize the perf_online_<domain>_masks
on the boot CPU.
X86 uses a per-cpu cpumask pointer, which could be NULL at the early
boot stage. However, ARM uses a global variable, which never be NULL.
Use perf_online_mask as an indicator instead. Only initialize the
perf_online_<domain>_masks when perf_online_mask is empty.
Fix a typo as well.
Fixes: 4ba4f1afb6a9 ("perf: Generic hotplug support for a PMU with a scope")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lore.kernel.org/lkml/20240911153854.240bbc1f@canb.auug.org.au/
Reported-by: Steven Price <steven.price@arm.com>
Closes: https://lore.kernel.org/lkml/1835eb6d-3e05-47f3-9eae-507ce165c3bf@arm.com/
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Tested-by: Steven Price <steven.price@arm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Variable en_dev is not effectively used, so delete it.
drivers/infiniband/hw/bnxt_re/main.c:1980:22: warning: variable ‘en_dev’ set but not used.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=10867
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Link: https://patch.msgid.link/20240918021632.36091-1-jiapeng.chong@linux.alibaba.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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i2c_device_id::driver_data to 0
These drivers don't use the driver_data member of struct i2c_device_id,
so don't explicitly initialize this member.
This prepares putting driver_data in an anonymous union which requires
either no initialization or named designators. But it's also a nice
cleanup on its own.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Link: https://lore.kernel.org/r/20240920153430.503212-12-u.kleine-koenig@baylibre.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Avoid requiring MODULE_ALIASES by declaring proper device id tables.
Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Link: https://lore.kernel.org/r/20240918212159.1191637-1-andreas@kemnade.info
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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The m48t59 leap year calculation will fail in 2100
Link: https://lore.kernel.org/r/20240911224836.1571831-1-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
|
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After commit 0edb555a65d1 ("platform: Make platform_driver::remove()
return void") .remove() is (again) the right callback to implement for
platform drivers.
Convert all clk drivers to use .remove(), with the eventual goal to drop
struct platform_driver::remove_new(). As .remove() and .remove_new() have
the same prototypes, conversion is done by just changing the structure
member name in the driver initializer.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Link: https://lore.kernel.org/r/20240909144026.870565-2-u.kleine-koenig@baylibre.com
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> # renesas
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
|
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clk-next
* clk-devm:
clk: provide devm_clk_get_optional_enabled_with_rate()
clk: fixed-rate: add devm_clk_hw_register_fixed_rate_parent_data()
* clk-samsung:
clk: samsung: add top clock support for ExynosAuto v920 SoC
clk: samsung: clk-pll: Add support for pll_531x
dt-bindings: clock: add ExynosAuto v920 SoC CMU bindings
clk: samsung: exynos7885: Add USB related clocks to CMU_FSYS
clk: samsung: clk-pll: Add support for pll_1418x
clk: samsung: exynosautov9: add dpum clock support
dt-bindings: clock: exynosautov9: add dpum clock
clk: samsung: exynos7885: Add missing MUX clocks from PLLs in CMU_TOP
clk: samsung: exynos7885: Update CLKS_NR_FSYS after bindings fix
dt-bindings: clock: exynos7885: Add indices for USB clocks
dt-bindings: clock: exynos7885: Add CMU_TOP PLL MUX indices
dt-bindings: clock: exynos7885: Fix duplicated binding
clk: samsung: exynos850: Add TMU clock
dt-bindings: clock: exynos850: Add TMU clock
* clk-rockchip:
dt-bindings: clock, reset: fix top-comment indentation rk3576 headers
clk: rockchip: remove unused mclk_pdm0_p/pdm0_p definitions
clk: rockchip: fix error for unknown clocks
clk: rockchip: rk3588: drop unused code
clk: rockchip: Add clock controller for the RK3576
clk: rockchip: Add new pll type pll_rk3588_ddr
dt-bindings: clock, reset: Add support for rk3576
dt-bindings: clock: rockchip,rk3588-cru: drop unneeded assigned-clocks
clk: rockchip: rk3588: Fix 32k clock name for pmu_24m_32k_100m_src_p
dt-bindings: clock: rockchip: remove CLK_NR_CLKS and CLKPMU_NR_CLKS
clk: rockchip: rk3399: Drop CLK_NR_CLKS CLKPMU_NR_CLKS usage
clk: rockchip: rk3368: Drop CLK_NR_CLKS usage
clk: rockchip: rk3328: Drop CLK_NR_CLKS usage
clk: rockchip: rk3308: Drop CLK_NR_CLKS usage
clk: rockchip: rk3288: Drop CLK_NR_CLKS usage
clk: rockchip: rk3228: Drop CLK_NR_CLKS usage
clk: rockchip: rk3036: Drop CLK_NR_CLKS usage
clk: rockchip: px30: Drop CLK_NR_CLKS CLKPMU_NR_CLKS usage
clk: rockchip: Set parent rate for DCLK_VOP clock on RK3228
* clk-qcom: (47 commits)
clk: qcom: videocc-sm8550: Use HW_CTRL_TRIGGER flag for video GDSC's
clk: qcom: dispcc-sm8250: use special function for Lucid 5LPE PLL
clk: qcom: dispcc-sm8250: use CLK_SET_RATE_PARENT for branch clocks
clk: qcom: ipq5332: Use icc-clk for enabling NoC related clocks
clk: qcom: ipq5332: Register gcc_qdss_tsctr_clk_src
dt-bindings: usb: qcom,dwc3: Update ipq5332 clock details
dt-bindings: interconnect: Add Qualcomm IPQ5332 support
clk: qcom: gcc-msm8998: Add Q6 BIMC and LPASS core, ADSP SMMU clocks
dt-bindings: clock: gcc-msm8998: Add Q6 and LPASS clocks definitions
clk: qcom: Fix SM_CAMCC_8150 dependencies
clk: qcom: gcc-sm8150: De-register gcc_cpuss_ahb_clk_src
clk: qcom: gcc-sc8180x: Fix the sdcc2 and sdcc4 clocks freq table
clk: qcom: gcc-sc8180x: Add GPLL9 support
dt-bindings: clock: qcom: Add GPLL9 support on gcc-sc8180x
clk: qcom: gcc-sc8180x: Register QUPv3 RCGs for DFS on sc8180x
clk: qcom: clk-rpmh: Fix overflow in BCM vote
dt-bindings: clock: qcom: Drop required-opps in required on SM8650 camcc
dt-bindings: clock: qcom: Drop required-opps in required on sm8650 videocc
dt-bindings: clock: qcom,qcs404-turingcc: convert to dtschema
dt-bindings: clock: Add x1e80100 LPASSCC reset controller
...
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* clk-amlogic:
clk: meson: introduce symbol namespace for amlogic clocks
clk: meson: axg-audio: add sm1 earcrx clocks
clk: meson: axg-audio: setup regmap max_register based on the SoC
dt-bindings: clock: axg-audio: add earcrx clock ids
clk: meson: s4: pll: Constify struct regmap_config
clk: meson: s4: peripherals: Constify struct regmap_config
clk: meson: c3: pll: Constify struct regmap_config
clk: meson: c3: peripherals: Constify struct regmap_config
clk: meson: a1: pll: Constify struct regmap_config
clk: meson: a1: peripherals: Constify struct regmap_config
* clk-microchip:
clk: at91: sama7g5: Allocate only the needed amount of memory for PLLs
clk: at91: sam9x7: add sam9x7 pmc driver
dt-bindings: clock: at91: Allow PLLs to be exported and referenced in DT
clk: at91: sama7g5: move mux table macros to header file
clk: at91: sam9x7: add support for HW PLL freq dividers
clk: at91: clk-sam9x60-pll: re-factor to support individual core freq outputs
dt-bindings: clocks: atmel,at91rm9200-pmc: add sam9x7 clock controller
dt-bindings: clocks: atmel,at91sam9x5-sckc: add sam9x7
* clk-imx: (27 commits)
clk: imx6ul: fix clock parent for IMX6UL_CLK_ENETx_REF_SEL
clk: imx95: enable the clock of NETCMIX block control
dt-bindings: clock: add RMII clock selection
dt-bindings: clock: add i.MX95 NETCMIX block control
clk: imx: imx8: Use clk_hw pointer for self registered clock in clk_parent_data
clk: imx: composite-7ulp: Use NULL instead of 0
clk: imx: add missing MODULE_DESCRIPTION() macros
clk: imx: clk-imx8mp: Allow media_disp pixel clock reconfigure parent rate
clk: imx: fracn-gppll: update rate table
clk: imx: imx8qxp: Parent should be initialized earlier than the clock
clk: imx: imx8qxp: Register dc0_bypass0_clk before disp clk
clk: imx: imx8qxp: Add clock muxes for MIPI and PHY ref clocks
clk: imx: imx8qxp: Add LVDS bypass clocks
clk: imx: imx8mm: Change the 'nand_usdhc_bus' clock to non-critical one
clk: imx: imx8mn: add sai7_ipg_clk clock settings
clk: imx: add CLK_SET_RATE_PARENT for lcdif_pixel_src for i.MX7D
clk: imx: Remove CLK_SET_PARENT_GATE for DRAM mux for i.MX7D
clk: imx: imx8mp: fix clock tree update of TF-A managed clocks
clk: imx: fracn-gppll: fix fractional part of PLL getting lost
clk: imx: composite-7ulp: Check the PCC present bit
...
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* clk-assigned-rates:
clk: clk-conf: support assigned-clock-rates-u64
* clk-renesas: (34 commits)
clk: renesas: r9a09g057: Add clock and reset entries for GTM/RIIC/SDHI/WDT
clk: renesas: rzv2h: Add support for dynamic switching divider clocks
clk: renesas: r9a08g045: Add clocks, resets and power domains for USB
dt-bindings: clock: renesas,cpg-clocks: Add top-level constraints
clk: renesas: r8a779h0: Add CANFD clock
clk: renesas: Add RZ/V2H(P) CPG driver
clk: renesas: Add family-specific clock driver for RZ/V2H(P)
dt-bindings: clock: renesas: Document RZ/V2H(P) SoC CPG
clk: renesas: r8a779h0: Add PWM clock
dt-bindings: clock: renesas,cpg-mssr: Document RZ/G2M v3.0 (r8a774a3) clock
clk: renesas: rcar-gen4: Remove unused default PLL2/3/4/6 configs
clk: renesas: rcar-gen4: Remove unused fixed PLL clock types
clk: renesas: rcar-gen4: Remove unused variable PLL2 clock type
clk: renesas: r8a779h0: Model PLL1/2/3/4/6 as fractional PLLs
clk: renesas: r8a779g0: Model PLL1/3/4/6 as fractional PLLs
clk: renesas: r8a779f0: Model PLL1/2/3/6 as fractional PLLs
clk: renesas: r8a779a0: Use defines for PLL control registers
clk: renesas: rcar-gen4: Add support for fractional 9.24 PLLs
clk: renesas: rcar-gen4: Add support for fixed variable PLLs
clk: renesas: rcar-gen4: Add support for variable fractional PLLs
...
* clk-scmi:
clk: scmi: add is_prepared hook
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into clk-next
- KUnit tests for clk registration and fixed rate basic clk type
* clk-kunit:
clk: Add KUnit tests for clks registered with struct clk_parent_data
clk: Add KUnit tests for clk fixed rate basic type
clk: Add test managed clk provider/consumer APIs
platform: Add test managed platform_device/driver APIs
of: Add a KUnit test for overlays and test managed APIs
dt-bindings: vendor-prefixes: Add "test" vendor for KUnit and friends
of: Add test managed wrappers for of_overlay_apply()/of_node_put()
of/platform: Allow overlays to create platform devices from the root node
* clk-mediatek:
dt-bindings: clock: mediatek: Convert MediaTek clock syscons to schema
dt-bindings: Move Mediatek clock controllers to "clock" directory
dt-bindings: clock: mediatek,apmixedsys: Fix "mediatek,mt6779-apmixed" compatible
clk: mediatek: reset: Remove unused mtk_register_reset_controller()
clk: mediatek: reset: Return regmap's error code
* clk-cleanup:
clk: starfive: Use pm_runtime_resume_and_get to fix pm_runtime_get_sync() usage
clk: ti: dra7-atl: Fix leak of of_nodes
clk:davinci: make use of dev_err_cast_probe()
clk: bcm: bcm53573: fix OF node leak in init
clk: lmk04832: Use devm_clk_get_enabled() helpers
clk: visconti: Switch to use kmemdup_array()
clk: mmp: Switch to use kmemdup_array()
clk: hisilicon: Remove unnecessary local variable
clk: use clk_core_unlink_consumer() helper
clk: Use of_property_present()
clk: at91: Use of_property_count_u32_elems() to get property length
da8xx-cfgchip.c: replace of_node_put with __free improves cleanup
* clk-bindings:
dt-bindings: clock: st,stm32mp1-rcc: add top-level constraints
dt-bindings: clock: cirrus,lochnagar: add top-level constraints
dt-bindings: clock: baikal,bt1-ccu-div: add top-level constraints
dt-bindings: clock: nxp,lpc3220-usb-clk: Convert bindings to dtschema
dt-bindings: clock: nxp,lpc3220-clk: Convert bindings to DT schema
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Syzbot reports a problem that a warning is triggered due to suspicious
use of rcu_dereference_check(). That is triggered by a call of
bch2_snapshot_tree_oldest_subvol().
The cause of the warning is that inside
bch2_snapshot_tree_oldest_subvol(), snapshot_t() is called which calls
rcu_dereference() that requires a read lock to be held. Also, the call
of bch2_snapshot_tree_next() eventually calls snapshot_t().
To fix this, call rcu_read_lock() before calling snapshot_t(). Then,
release the lock after the termination of the while loop.
Reported-by: <syzbot+f7c41a878676b72c16a6@syzkaller.appspotmail.com>
Signed-off-by: Ahmed Ehab <bottaawesome633@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext
Pull sched_ext support from Tejun Heo:
"This implements a new scheduler class called ‘ext_sched_class’, or
sched_ext, which allows scheduling policies to be implemented as BPF
programs.
The goals of this are:
- Ease of experimentation and exploration: Enabling rapid iteration
of new scheduling policies.
- Customization: Building application-specific schedulers which
implement policies that are not applicable to general-purpose
schedulers.
- Rapid scheduler deployments: Non-disruptive swap outs of scheduling
policies in production environments"
See individual commits for more documentation, but also the cover letter
for the latest series:
Link: https://lore.kernel.org/all/20240618212056.2833381-1-tj@kernel.org/
* tag 'sched_ext-for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: (110 commits)
sched: Move update_other_load_avgs() to kernel/sched/pelt.c
sched_ext: Don't trigger ops.quiescent/runnable() on migrations
sched_ext: Synchronize bypass state changes with rq lock
scx_qmap: Implement highpri boosting
sched_ext: Implement scx_bpf_dispatch[_vtime]_from_dsq()
sched_ext: Compact struct bpf_iter_scx_dsq_kern
sched_ext: Replace consume_local_task() with move_local_task_to_local_dsq()
sched_ext: Move consume_local_task() upward
sched_ext: Move sanity check and dsq_mod_nr() into task_unlink_from_dsq()
sched_ext: Reorder args for consume_local/remote_task()
sched_ext: Restructure dispatch_to_local_dsq()
sched_ext: Fix processs_ddsp_deferred_locals() by unifying DTL_INVALID handling
sched_ext: Make find_dsq_for_dispatch() handle SCX_DSQ_LOCAL_ON
sched_ext: Refactor consume_remote_task()
sched_ext: Rename scx_kfunc_set_sleepable to unlocked and relocate
sched_ext: Add missing static to scx_dump_data
sched_ext: Add missing static to scx_has_op[]
sched_ext: Temporarily work around pick_task_scx() being called without balance_scx()
sched_ext: Add a cgroup scheduler which uses flattened hierarchy
sched_ext: Add cgroup support
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git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Pull bpf updates from Alexei Starovoitov:
- Introduce '__attribute__((bpf_fastcall))' for helpers and kfuncs with
corresponding support in LLVM.
It is similar to existing 'no_caller_saved_registers' attribute in
GCC/LLVM with a provision for backward compatibility. It allows
compilers generate more efficient BPF code assuming the verifier or
JITs will inline or partially inline a helper/kfunc with such
attribute. bpf_cast_to_kern_ctx, bpf_rdonly_cast,
bpf_get_smp_processor_id are the first set of such helpers.
- Harden and extend ELF build ID parsing logic.
When called from sleepable context the relevants parts of ELF file
will be read to find and fetch .note.gnu.build-id information. Also
harden the logic to avoid TOCTOU, overflow, out-of-bounds problems.
- Improvements and fixes for sched-ext:
- Allow passing BPF iterators as kfunc arguments
- Make the pointer returned from iter_next method trusted
- Fix x86 JIT convergence issue due to growing/shrinking conditional
jumps in variable length encoding
- BPF_LSM related:
- Introduce few VFS kfuncs and consolidate them in
fs/bpf_fs_kfuncs.c
- Enforce correct range of return values from certain LSM hooks
- Disallow attaching to other LSM hooks
- Prerequisite work for upcoming Qdisc in BPF:
- Allow kptrs in program provided structs
- Support for gen_epilogue in verifier_ops
- Important fixes:
- Fix uprobe multi pid filter check
- Fix bpf_strtol and bpf_strtoul helpers
- Track equal scalars history on per-instruction level
- Fix tailcall hierarchy on x86 and arm64
- Fix signed division overflow to prevent INT_MIN/-1 trap on x86
- Fix get kernel stack in BPF progs attached to tracepoint:syscall
- Selftests:
- Add uprobe bench/stress tool
- Generate file dependencies to drastically improve re-build time
- Match JIT-ed and BPF asm with __xlated/__jited keywords
- Convert older tests to test_progs framework
- Add support for RISC-V
- Few fixes when BPF programs are compiled with GCC-BPF backend
(support for GCC-BPF in BPF CI is ongoing in parallel)
- Add traffic monitor
- Enable cross compile and musl libc
* tag 'bpf-next-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (260 commits)
btf: require pahole 1.21+ for DEBUG_INFO_BTF with default DWARF version
btf: move pahole check in scripts/link-vmlinux.sh to lib/Kconfig.debug
btf: remove redundant CONFIG_BPF test in scripts/link-vmlinux.sh
bpf: Call the missed kfree() when there is no special field in btf
bpf: Call the missed btf_record_free() when map creation fails
selftests/bpf: Add a test case to write mtu result into .rodata
selftests/bpf: Add a test case to write strtol result into .rodata
selftests/bpf: Rename ARG_PTR_TO_LONG test description
selftests/bpf: Fix ARG_PTR_TO_LONG {half-,}uninitialized test
bpf: Zero former ARG_PTR_TO_{LONG,INT} args in case of error
bpf: Improve check_raw_mode_ok test for MEM_UNINIT-tagged types
bpf: Fix helper writes to read-only maps
bpf: Remove truncation test in bpf_strtol and bpf_strtoul helpers
bpf: Fix bpf_strtol and bpf_strtoul helpers for 32bit
selftests/bpf: Add tests for sdiv/smod overflow cases
bpf: Fix a sdiv overflow issue
libbpf: Add bpf_object__token_fd accessor
docs/bpf: Add missing BPF program types to docs
docs/bpf: Add constant values for linkages
bpf: Use fake pt_regs when doing bpf syscall tracepoint tracing
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