From: Andi Kleen <ak@muc.de>
To: Alexander Nyberg <alexn@dsv.su.se>
Cc: Andrew Morton <akpm@osdl.org>, Dave Jones <davej@redhat.com>,
linux-kernel@vger.kernel.org
Subject: Re: tickle nmi watchdog whilst doing serial writes.
Date: Sun, 15 May 2005 13:40:00 +0200 [thread overview]
Message-ID: <m1psvsafan.fsf@muc.de> (raw)
In-Reply-To: <1116067987.1183.9.camel@localhost.localdomain> (Alexander Nyberg's message of "Sat, 14 May 2005 12:53:07 +0200")
Alexander Nyberg <alexn@dsv.su.se> writes:
>
> But uhm, it should take at least 5 seconds of no-interrupts before the
> NMI watchdog decides the box is dead so this is kind of weird.
There is a bug somewhere that makes it sometimes expire faster.
I found only one bug so far - touch_nmi_watchdog has a race
(fixed now in -mm*). You can try if it still happens with the next -mm.
Somehow i doubt it is the race though because it should
be too unlikely to trigger this. Could be some other bug
too.
-Andi
next prev parent reply other threads:[~2005-05-15 11:40 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-13 18:48 tickle nmi watchdog whilst doing serial writes Dave Jones
2005-05-13 19:14 ` Arjan van de Ven
2005-05-13 19:23 ` Dave Jones
2005-05-13 19:37 ` Russell King
2005-05-14 6:43 ` Andrew Morton
2005-05-14 6:57 ` Dave Jones
2005-05-14 7:07 ` Andrew Morton
2005-05-14 10:31 ` Ed Tomlinson
2005-05-14 10:53 ` Alexander Nyberg
2005-05-15 11:40 ` Andi Kleen [this message]
2005-05-14 10:53 ` Ed Tomlinson
2005-05-15 11:38 ` Andi Kleen
2005-05-15 12:07 ` Russell King
2005-05-15 12:20 ` Andi Kleen
2005-05-15 14:01 ` Russell King
2005-05-15 14:03 ` Andi Kleen
2005-05-19 0:24 ` George Anzinger
2005-05-19 7:33 ` Russell King
2005-05-23 20:20 ` Bill Davidsen
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