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Date:      Mon, 24 Jan 2005 19:44:09 +0100
From:      Emanuel Strobl <emanuel.strobl@gmx.net>
To:        freebsd-stable@freebsd.org
Cc:        smkelly@FreeBSD.org
Subject:   Re: watchdogd panic when shutdown -p
Message-ID:  <200501241944.13307.emanuel.strobl@gmx.net>
In-Reply-To: <E7912ED6-6E35-11D9-802F-000A9578CFCC@khera.org>
References:  <200501240911.31608.emanuel.strobl@gmx.net> <E7912ED6-6E35-11D9-802F-000A9578CFCC@khera.org>

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Am Montag, 24. Januar 2005 19:29 schrieb Vivek Khera:
> On Jan 24, 2005, at 3:11 AM, Emanuel Strobl wrote:
> > kernel will reset the machine. Best would be if I never see watchdog in
> > action but I'm seeing a panic message after some interrupt statistics
> > (see
> > below) and the machine doesn't power off (like it does without
> > watchdogd
> > enabled).
>
> Interesting... Can you compare your experience with mine as described
> in PR 71800?

Hmm, I don't have the problem when rebooting, just when shutting down with=
=20
power off. I also have never seen any loop as you describe.

>
> http://www.freebsd.org/cgi/query-pr.cgi?pr=3D71800
>
> I hadn't attributed this to the watchdog.  I'll try that, but I have
> two boxes with watchdog enabled (FreeBSD 5.3 and 5.2.1) which don't
> exhibit any failure to shutdown, and I have two boxes with 5.3 that do
> exhibit (one ever since 5.3 BETA) the kernel IRQ messages on any type
> of shutdown.  All have the watchdog on.

I think it's a ACPI interaction problem with watchdog, so depending on your=
=20
motherborads ACPI implementation you see the error or not, but I'm complete=
ly=20
new to SW_WATCHDOG so I can't tell much when and why these irq statistics a=
re=20
generated.
Maybe Sean Kelly can tell us how SW_WATCHDOG interacts with ACPI, since I=20
think the problem occurs when the kernel disables ACPI, right? (just my=20
"feeling")

=2DHarry

>
>
> Vivek Khera, Ph.D.
> +1-301-869-4449 x806
>
> _______________________________________________
> freebsd-stable@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-stable
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