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Date:	Sun, 2 Nov 2008 20:33:18 -0700
From:	Matthew Wilcox <>
Subject: Re: WARNING in pci-dma::dma_free_coherent, during unload of sym53c8xx_2

On Mon, Nov 03, 2008 at 02:36:47AM +0100, Matthias Andree wrote:
> Hi,
> I killall -9'ed "taper" because my SCSI hardware was going haywire,
> and tried to rmmod sym53c8xx, and got a nice warning from the kernel -
> shown below.
> [Please Cc: replies, I'm subscribed to linux-kernel@, but not linux-scsi@]
> The machine had been suspended to disk before (via /sys/power/state).
> ------------[ cut here ]------------
> WARNING: at arch/x86/kernel/pci-dma.c:376 dma_free_coherent+0x80/0x90()

Nothing to worry about.  It's a warning on x86 because it's a bug on

Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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