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| author | Jiri Olsa <jolsa@redhat.com> | 2011-05-11 13:06:13 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-05-11 13:21:23 +0200 |
| commit | 9bbeacf52f66d165739a4bbe9c018d17493a74b5 (patch) | |
| tree | d47a268e184907bc1c962e91f361907f29b4093b /tools/perf | |
| parent | 693d92a1bbc9e42681c42ed190bd42b636ca876f (diff) | |
| download | linux-9bbeacf52f66d165739a4bbe9c018d17493a74b5.tar.bz2 | |
kprobes, x86: Disable irqs during optimized callback
Disable irqs during optimized callback, so we dont miss any in-irq kprobes.
The following commands:
# cd /debug/tracing/
# echo "p mutex_unlock" >> kprobe_events
# echo "p _raw_spin_lock" >> kprobe_events
# echo "p smp_apic_timer_interrupt" >> ./kprobe_events
# echo 1 > events/enable
Cause the optimized kprobes to be missed. None is missed
with the fix applied.
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Link: http://lkml.kernel.org/r/20110511110613.GB2390@jolsa.brq.redhat.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf')
0 files changed, 0 insertions, 0 deletions