Re: 2.6.11-rc3-mm1: softlockup and suspend/resume

From: Ingo Molnar
Date: Mon Feb 07 2005 - 03:59:09 EST



* Rafael J. Wysocki <rjw@xxxxxxx> wrote:

> > ah, ok. Could you try my patch and add touch_softlockup_watchdog() to
> > the resume code (before interrupts are re-enabled)?
>
> I did:
>
> --- /home/rafael/tmp/kernel/testing/linux-2.6.11-rc3-mm1/kernel/power/swsusp.c 2005-02-05 20:57:03.000000000 +0100
> +++ linux-2.6.11-rc3-mm1/kernel/power/swsusp.c 2005-02-06 19:07:39.000000000 +0100
> @@ -871,6 +869,7 @@
> restore_processor_state();
> restore_highmem();
> device_power_up();
> + touch_softlockup_watchdog();
> local_irq_enable();
> return error;
> }
>
> and it still complains, but the call trace is now different:

could you describe the timings a bit more - how long it takes to do the
resume, and when does the watchdog print out its warning. Is it a single
warning only, and once the resume succeeds, the watchdog doesnt complain
anymore, correct?

Ingo
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