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From: Andrew Morton <akpm@digeo.com>
To: Helge Hafting <helgehaf@aitel.hist.no>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.5.50 hang when copying files, handwritten trace included
Date: Mon, 02 Dec 2002 10:41:54 -0800	[thread overview]
Message-ID: <3DEBA972.DB6AF8F1@digeo.com> (raw)
In-Reply-To: <3DEB70FE.C422A3EB@aitel.hist.no>

Helge Hafting wrote:
> 
> 2.5.50 hung when copying 800M.
> mke2fs on a 10G partition, then try to copy
> the entire /home there. Source and destionation
> was on the same disk. After a while, this happened:
> 
> EIP: wake_up_forked_process+0xb8/0x18c
> EAX: 5a5a5a5a   (suspicious)
> 
> trace:
> do_fork
> kernel_thread
> pdflush
> kernel_thread_helper
> start_one_pdflush_thread
> pdflush
> __pdflush
> __pdflush
> background_writeout
> kernel_thread_helper
> 

Yes please - if you could gather sufficient info to enable
us to determine what eax is pointing at in wake_up_forked_process(),
that would help.  Presumably it's the new process, which is rather
bizarre.

Also, does disabling preemption make it stop?

Thanks.

  reply	other threads:[~2002-12-02 18:34 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-12-02 14:41 Helge Hafting
2002-12-02 18:41 ` Andrew Morton [this message]
2002-12-03 17:22 Helge Hafting

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