linux-kernel - Re: [PATCH] Re: Bio device too big | kernel BUG at mm/filemap.c:537!

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Message-Id: <1170865619.16808.1173403963@webmail.messagingengine.com>
Date:	Wed, 07 Feb 2007 08:26:59 -0800
From:	"Kai" <epimetreus@...tmail.fm>
To:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Re: Bio device too big | kernel BUG at mm/filemap.c:537!

On Wed, 7 Feb 2007 10:26:56 +1100, "Neil Brown" <neilb@...e.de> said:
> On Tuesday February 6, neilb@...e.de wrote:
> > 
> > This patch should fix the worst of the offences, but I'd like to
> > experiment and think a bit more before I submit it to stable.
> > And probably test it too - as yet I have only compile and brain
> > tested.
> 
> Ok, I've experimented and tested and now I know what was causing the
> double-unlock.
> 
> The following patch is suitable for 2.6.20.1 and mainline.  There is
> room for a bit more improvement, but only for performance, not
> correctness.  I'll look into that later.
> 
> Thanks,
> NeilBrown

I figure I should test this on my hardware, but since the RAID array
resynched itself when I rebooted back into an earlier kernel version,
I'm guessing it means this bug introduced some corruption into the
array, when it occurred, so I'd like some pointers on how I can test it
out without compromising my data.
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