diff options
| author | Steven Rostedt <rostedt@goodmis.org> | 2011-06-14 18:36:25 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-06-15 11:44:48 +0200 |
| commit | 0da938c44921cfb690283d3b0c9c48a10375db2c (patch) | |
| tree | 7e9374a3ed16a4118f2f5d600067c471aaa80c70 /fs/sysfs/inode.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 <habanero@linux.vnet.ibm.com>
Tested-by: Andrew Theurer <habanero@linux.vnet.ibm.com>
Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20110614223657.824872966@goodmis.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'fs/sysfs/inode.c')
0 files changed, 0 insertions, 0 deletions