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Re: 2.6.24-rc1-gb4f5550 oops
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From: Rafael J. Wysocki
Subject:
Re: 2.6.24-rc1-gb4f5550 oops
Date: Thursday, November 8, 2007 - 3:49 pm
On Thursday, 8 of November 2007, Grant Wilson wrote:
quoted text
> On Thu, 8 Nov 2007 22:42:21 +0100 > "Rafael J. Wysocki" <rjw@sisk.pl> wrote: > > > On Thursday, 8 of November 2007, Grant Wilson wrote: > > > On Thu, 8 Nov 2007 16:53:10 +0100 > > > "Rafael J. Wysocki" <rjw@sisk.pl> wrote: > > > > > > > On Thursday, 8 of November 2007, Grant Wilson wrote: > > > > > On Thu, 8 Nov 2007 01:06:21 +0100 > > > > > "Rafael J. Wysocki" <rjw@sisk.pl> wrote: > > > > > > > > > > > On Monday, 5 of November 2007, Grant Wilson wrote: > > > > > > > Hi, > > > > > > > I got this oops on 2.6.24-rc1-641-gb4f5550: > > > > > > > > > > > > (1) Is this reproducible? > > > > > > (2) Did it happen previously on your system? > > > > > > > > > > > > [18073.371126] Unable to handle kernel NULL pointer dereference at 0000000000000120 RIP: > > > > > > [18073.371134] [<ffffffff8023572e>] check_preempt_wakeup+0x6e/0x110 > > > > > > > > > > This has now happened twice - the second time was last night when > > > > > running 2.6.24-rc2. > > > > > > > > > > Here's that second occurrence: > > > > > > > > [snip] > > > > > > > > Hmm. > > > > > > > > Please run "gdb vmlinux" and see what code corresponds to > > > > check_preempt_wakeup+0x6e in your kernel. > > > > > > > > > Dump of assembler code for function check_preempt_wakeup: > > > > Well, thanks, but I meant the source code. Please do "gdb vmlinux" and then > > "l *check_preempt_wakeup+0x6e" in gdb. > > Here's the requested output: > > (gdb) l *check_preempt_wakeup+0x6e > 0xffffffff802329ae is in check_preempt_wakeup (kernel/sched_fair.c:668). > 663 > 664 /* Do the two (enqueued) entities belong to the same group ? */ > 665 static inline int > 666 is_same_group(struct sched_entity *se, struct sched_entity *pse) > 667 { > 668 if (se->cfs_rq == pse->cfs_rq) > 669 return 1; > 670 > 671 return 0; > 672 }
Well, it looks like either se or pse is NULL. Ingo, can you please have a look? Thanks, Rafael -
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Messages in current thread:
Re: 2.6.24-rc1-gb4f5550 oops
, Rafael J. Wysocki
, (Thu Nov 8, 8:53 am)
Re: 2.6.24-rc1-gb4f5550 oops
, Grant Wilson
, (Thu Nov 8, 10:22 am)
Re: 2.6.24-rc1-gb4f5550 oops
, Rafael J. Wysocki
, (Thu Nov 8, 2:42 pm)
Re: 2.6.24-rc1-gb4f5550 oops
, Grant Wilson
, (Thu Nov 8, 3:19 pm)
Re: 2.6.24-rc1-gb4f5550 oops
, Rafael J. Wysocki
, (Thu Nov 8, 3:49 pm)
Re: 2.6.24-rc1-gb4f5550 oops
, Peter Zijlstra
, (Mon Nov 12, 11:05 am)
Re: 2.6.24-rc1-gb4f5550 oops
, Grant Wilson
, (Mon Nov 12, 11:28 am)
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