From: Jon Masters <jonathan@jonmasters.org>
To: Martin Knoblauch <spamtrap@knobisoft.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Stack warning from 2.6.24-rc
Date: Tue, 04 Dec 2007 06:56:41 -0500 [thread overview]
Message-ID: <1196769402.27258.158.camel@perihelion> (raw)
In-Reply-To: <955170.47530.qm@web32601.mail.mud.yahoo.com>
On Tue, 2007-12-04 at 03:46 -0800, Martin Knoblauch wrote:
> Hi,
>
> I see the following stack warning(s) on a IBM x3650 (2xDual-Core, 8 GB, AACRAID with 6x146GB RAID5) running 2.6.24-rc3/rc4:
>
> [ 180.739846] mount.nfs used greatest stack depth: 3192 bytes left
> [ 666.121007] bash used greatest stack depth: 3160 bytes left
>
> Nothing bad has happened so far. The message does not show on a similarly configured HP/DL-380g4 (CCISS instead of AACRAID) running rc3. Anything to worry? Anything I can do to help debugging?
This is enabled by CONFIG_DEBUG_STACK_USAGE, which defines
check_stack_usage. It is called on task exit and will warn each time a
task has used the biggest kernel mode stack since booting. This isn't a
bug, and isn't a (bad) warning, it's just informational right now.
Jon.
next prev parent reply other threads:[~2007-12-04 11:57 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-04 11:46 Martin Knoblauch
2007-12-04 11:52 ` Ingo Molnar
2007-12-04 11:56 ` Jon Masters [this message]
2007-12-04 12:21 Martin Knoblauch
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