diff options
| author | Peter Zijlstra <[email protected]> | 2012-03-26 13:16:15 +0200 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2012-03-27 14:50:10 +0200 |
| commit | bc758133ed73d4b06952bec21da23e28e62bf3ba (patch) | |
| tree | c7d2a8cec16533e7d3b3896f9fdc7c0350b8a041 /net/lapb/lapb_timer.c | |
| parent | 6c16a6dcb05e51ace340ff7bc6dbe647f1593528 (diff) | |
sched/x86/smp: Do not enable IRQs over calibrate_delay()
We should not ever enable IRQs until we're fully set up. This opens up
a window where interrupts can hit the cpu and interrupts can do
wakeups, wakeups need state that isn't set-up yet, in particular this
cpu isn't elegible to run tasks, so if any cpu-affine task that got
created in CPU_UP_PREPARE manages to get a wakeup, its affinity mask
will get broken and we'll run into lots of 'interesting' problems.
Signed-off-by: Peter Zijlstra <[email protected]>
Cc: Linus Torvalds <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'net/lapb/lapb_timer.c')
0 files changed, 0 insertions, 0 deletions