diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2024-08-20 08:35:58 +0206 |
|---|---|---|
| committer | Petr Mladek <pmladek@suse.com> | 2024-08-21 15:03:04 +0200 |
| commit | 4833794db61c8cc4de4563a2754c7aedaffbb684 (patch) | |
| tree | a780d76be71a7fb04a136c9a3e3887de3a40ea88 /kernel/panic.c | |
| parent | ecb5e1aa82c86642ec1eaafefd4e317dfba3a238 (diff) | |
panic: Mark emergency section in warn
Mark the full contents of __warn() as an emergency section. In
this section, every printk() call will attempt to directly
flush to the consoles using the EMERGENCY priority.
Co-developed-by: John Ogness <john.ogness@linutronix.de>
Signed-off-by: John Ogness <john.ogness@linutronix.de>
Signed-off-by: Thomas Gleixner (Intel) <tglx@linutronix.de>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20240820063001.36405-33-john.ogness@linutronix.de
Signed-off-by: Petr Mladek <pmladek@suse.com>
Diffstat (limited to 'kernel/panic.c')
| -rw-r--r-- | kernel/panic.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/panic.c b/kernel/panic.c index 93096d5abcc7..1a10b6e2a855 100644 --- a/kernel/panic.c +++ b/kernel/panic.c @@ -718,6 +718,8 @@ struct warn_args { void __warn(const char *file, int line, void *caller, unsigned taint, struct pt_regs *regs, struct warn_args *args) { + nbcon_cpu_emergency_enter(); + disable_trace_on_warning(); if (file) @@ -753,6 +755,8 @@ void __warn(const char *file, int line, void *caller, unsigned taint, /* Just a warning, don't kill lockdep. */ add_taint(taint, LOCKDEP_STILL_OK); + + nbcon_cpu_emergency_exit(); } #ifdef CONFIG_BUG |