From: Eli Cohen <mlxk@mellanox.co.il>
To: Roland Dreier <roland@topspin.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: sysrq shows impossible call stack
Date: Tue, 20 Apr 2004 20:36:21 +0300 [thread overview]
Message-ID: <40855F95.7080003@mellanox.co.il> (raw)
In-Reply-To: <52ekqizkd2.fsf@topspin.com>
Roland Dreier wrote:
> Eli> Hi, I am exsperiencing a hang, probably caused by a deadlock,
> Eli> so I can do sysrq commands. However I can see that in some
> Eli> cases the exspected call stack has some functions in between
> Eli> as if two call stack are interleaved.
>
>Hi Eli,
>
>I think what you are seeing is old values left on the stack. If a
>function allocates space for local variables but bumping the stack
>pointer, but then never actually uses those variables, then old values
>including old return addresses may be left in the stack.
>
> - Roland
>
>
Thanks Roland
next prev parent reply other threads:[~2004-04-20 17:34 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-20 15:45 sysrq shows impossible call stack Eli Cohen
2004-04-20 16:26 ` Roland Dreier
2004-04-20 17:36 ` Eli Cohen [this message]
2004-04-20 17:51 ` stack dumps, CONFIG_FRAME_POINTER and i386 (was Re: sysrq shows impossible call stack) Roland Dreier
2004-04-20 20:26 ` Adam Litke
2004-04-21 0:12 ` Roland Dreier
2004-04-21 1:39 ` Andrew Morton
2004-04-21 1:41 ` Andrew Morton
2004-04-21 23:28 ` Adam Litke
2004-04-21 23:50 ` Andrew Morton
2004-04-22 18:25 ` Adam Litke
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