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SubjectRe: [2.6.15-rc7-rt1] check_monotonic_clock: monotonic inconsistency detected!
At 10:49 AM 12/31/2005 -0500, Steven Rostedt wrote:
>On Sat, 2005-12-31 at 16:00 +0100, Mike Galbraith wrote:
> > Greetings,
> >
> > After running just fine for most of the day, my PIII/500 coughed up
> > attached fur-ball as I tried to start my ancient (au) sound
> > server. Subsequent repeated starting and stopping of same did not
> induce a
> > repeat (but then all zillion sound modules were loaded). If any other
> info
> > is needed, just holler.
>
>[inlining the attachment]
>
>check_monotonic_clock: monotonic inconsistency detected!
> from 191c7872fef6 (27610070580982) to 191c7872dd13
> (27610070572307).
>softirq-hrtimer/8[CPU#0]: BUG in check_monotonic_clock at
>kernel/time/timeofday.c:160
> [<c0104063>] dump_stack+0x23/0x30 (20)
> [<c011db1a>] __WARN_ON+0x6a/0xa0 (44)
> [<c013c8d2>] check_monotonic_clock+0xe2/0x100 (52)
> [<c013cd85>] get_monotonic_clock+0xe5/0x120 (80)
> [<c0135b16>] hrtimer_forward+0x36/0xf0 (80)
> [<c0120cbb>] it_real_fn+0x6b/0x80 (28)
> [<c0136345>] run_hrtimer_softirq+0x65/0x150 (52)
> [<c0122826>] ksoftirqd+0x116/0x1c0 (60)
> [<c01325b9>] kthread+0xa9/0xf0 (52)
> [<c0101245>] kernel_thread_helper+0x5/0x10 (671293468)
>------------------------------
>| showing all locks held by: | (softirq-hrtimer/8 [d7fcabb0, 98]):
>------------------------------
>
>[end inline]
>
>This looks like it probably has nothing to do with your module. The
>monotonic clock went backwards. Also, it will only print once per boot,
>even if the event happens again.
>
>Is your system SMP?

No.

> Could you also send your config.

Attached. (this is winbloze eudora, no inlining possible)

> And John will
>probably want to see your dmesg output.

I'll send that off-line upon request. FWIW, it's not the original boot
dmesg output however, but one a freshly booted system...

As luck would have it, just as I was collecting the data, there was a major
explosion. Box was slogging through glibc make check, and when it hit the
mutex tests in nptl, KaBOOM. Ding-dong-dead box... [reboot] oh my, seems
repeatable. Guess I'll see if I can find my serial console cable instead
of typing make install as originally planned :)

-Mike [unhandled content-type:application/octet-stream]
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