Re: Intermittent early panic in try_to_wake_up

From: Peter Zijlstra
Date: Sat Nov 07 2009 - 11:37:34 EST

On Sat, 2009-11-07 at 12:24 -0400, Kevin Winchester wrote:
> Mike Galbraith wrote:
> > On Fri, 2009-11-06 at 19:49 -0400, Kevin Winchester wrote:
> >
> >> The patch below does not apply to mainline, unless I'm doing something wrong.
> >> It's against -tip, I assume? Is it just as applicable to mainline?
> >
> > It was mainline, but I had the scheduler pull request and another in for
> > testing as well. Linus has pulled, so it'll apply now, with offsets.
> >
> It did end up applying, but did not have any effect. Looking at the patch
> again, I see that it appears to only affect CONFIG_SMP, which I am not
> running (and in fact it adds a build warning for the !SMP case). So there
> was not much chance of it fixing anything, I suppose.
> Any other ideas? I don't have a serial console, and the trace scrolls off
> my console, so I don't know if any debug printks would help. Would it help
> if I copied the entire panic message entirely, including the Code section?
> I can try that the next time it happens.

Use vga=ask boot_delay=100 select the highest res possible.

Possibly you could use a digital (video) camera to record the output.

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