From: Pavel Machek <pavel@ucw.cz>
To: Nigel Cunningham <ncunningham@linuxmail.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: IO_APIC NMI Watchdog not handled by suspend/resume.
Date: Thu, 11 Nov 2004 00:30:45 +0100 [thread overview]
Message-ID: <20041110233045.GB1099@elf.ucw.cz> (raw)
In-Reply-To: <1099643612.3793.3.camel@desktop.cunninghams>
Hi!
> Tracking down SMP problems, I've found that if you boot with
> nmi_watchdog=1 (IO_APIC), the watchdog continues to run while suspend is
> doing sensitive things like restoring the original kernel. I don't know
> enough to provide a patch to disable it so thought I'd ask if someone
> could volunteer to fix this?
When we debated this at x86-64 lists, our conclusion was 'critical
section should take less than 5 seconds, and watchdog only touches its
own variables, so stopping it should not be needed'. [on x86-64,
watchdog is enabled even on up].
Pavel
--
People were complaining that M$ turns users into beta-testers...
...jr ghea gurz vagb qrirybcref, naq gurl frrz gb yvxr vg gung jnl!
next prev parent reply other threads:[~2004-11-11 11:13 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-05 8:33 IO_APIC NMI Watchdog not handled by suspend/resume Nigel Cunningham
2004-11-05 16:41 ` Zwane Mwaikambo
2004-11-05 21:17 ` Nigel Cunningham
2004-11-06 9:50 ` Nigel Cunningham
2004-11-10 23:30 ` Pavel Machek [this message]
2004-11-11 20:24 ` Nigel Cunningham
2004-11-12 1:13 ` Zwane Mwaikambo
2004-11-11 20:32 ` Nigel Cunningham
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