Messages in this thread | | | Date | Wed, 23 Sep 2009 13:20:47 +0100 | Subject | Re: perf sched record hangs machine | From | Chris Malley <> |
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2009/9/23 Ingo Molnar <mingo@elte.hu>: > > * Chris Malley <mail@chrismalley.co.uk> wrote: > >> 2009/9/23 Ingo Molnar <mingo@elte.hu>: >> > >> > * Chris Malley <mail@chrismalley.co.uk> wrote: >> > >> >> Applied Peter's patch, doesn't seem to have fixed the problem: >> >> >> >> [ ?246.408893] BUG: unable to handle kernel paging request at ffffb300 >> >> [ ?246.408939] IP: [<c011b0bd>] default_send_IPI_self+0x1d/0x50 >> > >> > could you please send the full bootlog, up to the crash? >> > >> > Thanks, >> > >> > ? ? ? ?Ingo >> > >> >> Sure, but I'm just rebuilding from clean first in case the change >> wasn't picked up for some reason, because I don't see how it can get >> to default_send_IPI_self() in my configuration... > > yeah - i have that thinking too - according to your earlier boot > messages x86_pmu.apic must be 0 and that codepath shouldnt trigger. > > Ingo >
Yep, my bad. The build process had helpfully appended a -dirty tag to the kernel version which I hadn't noticed.
I can't make it hang any more, so the fix looks good to me, thanks everyone.
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