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| author | Masami Hiramatsu <[email protected]> | 2014-08-04 03:10:16 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2014-08-08 08:38:04 +0000 |
| commit | f96f56780ca584930bb3a2769d73fd9a101bcbbe (patch) | |
| tree | c3974ec34ef0e249e25819248d84b8ec2c80325c /lib/assoc_array.c | |
| parent | Merge branch 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kerne... (diff) | |
| download | kernel-f96f56780ca584930bb3a2769d73fd9a101bcbbe.tar.gz kernel-f96f56780ca584930bb3a2769d73fd9a101bcbbe.zip | |
kprobes: Skip kretprobe hit in NMI context to avoid deadlock
Skip kretprobe hit in NMI context, because if an NMI happens
inside the critical section protected by kretprobe_table.lock
and another(or same) kretprobe hit, pre_kretprobe_handler
tries to lock kretprobe_table.lock again.
Normal interrupts have no problem because they are disabled
with the lock.
Signed-off-by: Masami Hiramatsu <[email protected]>
Acked-by: Ananth N Mavinakayanahalli <[email protected]>
Cc: David S. Miller <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
[ Minor edits for clarity. ]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'lib/assoc_array.c')
0 files changed, 0 insertions, 0 deletions