On Wed, 2013-03-06 at 15:27 +0400, vita...@yourcmc.ru wrote: [...] > Stack trace picture is here: > http://vmx.yourcmc.ru/var/pics/IMG_20130306_141045.jpg
Vitaliy reported that his system crashes when suspending to disk. This was a regression from 3.2 to 3.7, and remains in 3.8. Some details of this system are in the bug log at <http://bugs.debian.org/700333>. The photo shows a BUG in hrtimer_interrupt() after making the hibernation image and while resuming the non-boot CPUs. The HPET interrupt handler was called immediately after it was registered for CPU 2 (?), before the corresponding clock_event_device was registered. Seems like an obvious race condition, but then shouldn't the HPET have been stopped while the CPU was previously offlined? And it's strange that this system apparently hits the race quite reliably. Ben. -- Ben Hutchings The obvious mathematical breakthrough [to break modern encryption] would be development of an easy way to factor large prime numbers. - Bill Gates
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