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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2018-10-06 16:51:14 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-10-13 22:21:25 +1100 |
| commit | fb2d9505c0dbd4f5e00db70f7ca0ca7a3d75ca63 (patch) | |
| tree | 7cd8733510170de72e5bdf7fc68d5c884802ece2 /tools/perf/scripts/python/call-graph-from-sql.py | |
| parent | c9386bfd37d37f29588de9ea9add455510049c33 (diff) | |
powerpc/process: Fix interleaved output in show_user_instructions()
When two processes crash at the same time, we sometimes encounter
interleaving in the middle of a line:
init[1]: segfault (11) at 0 nip 0 lr 0 code 1
init[1]: code: XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
init[74]: segfault (11) at 10a74 nip 1000c198 lr 100078c8 code 1 in sh[10000000+14000]
XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
init[1]: code: XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
init[74]: code: 90010024 bf61000c 91490a7c 3fa01002 3be00000 7d3e4b78 3bbd0c20 3b600000
init[74]: code: 3b9d0040 7c7fe02e 2f830000 419e0028 <89230000> 2f890000 41be001c 4b7f6e79
This patch fixes it by preparing complete lines in a buffer and
printing it at once.
Fixes: 88b0fe1757359 ("powerpc: Add show_user_instructions()")
Reviewed-by: Murilo Opsfelder Araujo <muriloo@linux.ibm.com>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
[mpe: Use seq_buf_printf() not seq_buf_puts() which doesn't NULL terminate]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
0 files changed, 0 insertions, 0 deletions