diff options
| author | Jiri Olsa <[email protected]> | 2011-05-11 13:06:13 +0200 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2011-05-11 13:21:23 +0200 |
| commit | 9bbeacf52f66d165739a4bbe9c018d17493a74b5 (patch) | |
| tree | d47a268e184907bc1c962e91f361907f29b4093b /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | 693d92a1bbc9e42681c42ed190bd42b636ca876f (diff) | |
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 <[email protected]>
Acked-by: Masami Hiramatsu <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions