diff options
| author | Steven Rostedt <[email protected]> | 2011-06-14 18:36:25 -0400 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2011-06-15 11:44:48 +0200 |
| commit | 0da938c44921cfb690283d3b0c9c48a10375db2c (patch) | |
| tree | 7e9374a3ed16a4118f2f5d600067c471aaa80c70 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | 8dd0de8be31b4b966d17750a0b10df2f575c91ac (diff) | |
sched: Check if lowest_mask is initialized in find_lowest_rq()
On system boot up, the lowest_mask is initialized with an
early_initcall(). But RT tasks may wake up on other
early_initcall() callers before the lowest_mask is initialized,
causing a system crash.
Commit "d72bce0e67 rcu: Cure load woes" was the first commit
to wake up RT tasks in early init. Before this commit this bug
should not happen.
Reported-by: Andrew Theurer <[email protected]>
Tested-by: Andrew Theurer <[email protected]>
Tested-by: Paul E. McKenney <[email protected]>
Signed-off-by: Steven Rostedt <[email protected]>
Acked-by: Peter Zijlstra <[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