* Knut Petersen <knut_peter...@t-online.de> wrote: > On 26.10.2013 13:43, Ingo Molnar wrote: > >* Linus Torvalds <torva...@linux-foundation.org> wrote: > > > >>On Fri, Oct 25, 2013 at 11:23 AM, Thomas Gleixner <t...@linutronix.de> > >>wrote: > >>>Enable DEBUG_OBJECTS, DEBUG_OBJECTS_FREE, DEBUG_OBJECTS_TIMERS > >>Yes, but nobody has actually been able to trigger it with those. > >>It's pretty rare, and the debug options are so expensive that they > >>aren't reasonable to enable generally... > >> > >>So we need to try to figure out how to trigger it, or narrow > >>things down some way.. > >If it's timing then maybe the 1 seconds delay isn't enough > >(especially if it's boot related, where we have a couple of delays > >already) - the patch below triples it. > > > >(If the bug goes away due to some other side effect then this patch > >won't make a difference to reproducability.) > > I tried that patch, together with all the kobj debug options > enabled. With that kernel configuration I was unable to reproduce > the problem during 500 typical workload / reboot cycles. Without > the debug options I was able to reproduce the last reported panic > after 91 cycles. The debug options seem to change timing > sufficiently to mask the bug ;-(
Could you send me the kernel config please? Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/