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Re: [xfs-masters] 2.6.29-rc: kernel BUG at fs/xfs/support/debug.c:108

To: Alexander Beregalov <a.beregalov@xxxxxxxxx>
Subject: Re: [xfs-masters] 2.6.29-rc: kernel BUG at fs/xfs/support/debug.c:108
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Sat, 10 Jan 2009 09:39:24 -0500
Cc: Dave Chinner <david@xxxxxxxxxxxxx>, xfs-masters@xxxxxxxxxxx, xfs@xxxxxxxxxxx, kernel-testers@xxxxxxxxxxxxxxx
In-reply-to: <a4423d670901100419s2ae106bexac1a538caf654153@mail.gmail.com>
References: <20090109044121.GA31280@orion> <20090109053858.GP9448@disturbed> <a4423d670901091353s7ff12207gcb38eb093d77d401@mail.gmail.com> <a4423d670901091418j5c7fdfb2oeba2f4640f8e29d0@mail.gmail.com> <a4423d670901091511y68a53808rfaab8148526224c6@mail.gmail.com> <a4423d670901100419s2ae106bexac1a538caf654153@mail.gmail.com>
User-agent: Mutt/1.5.18 (2008-05-17)
On Sat, Jan 10, 2009 at 03:19:00PM +0300, Alexander Beregalov wrote:
> It is hard to bisect it,
> These are last good and bad commits:
> good: [854929f05831d3a290a802815ee955b96c740c61] [XFS] add new btree 
> statistics
> bad: [7f7c39ccb6045cf1fd5e7684a484c445291b44d4] [XFS] make btree tracing 
> generic

That would be odd as 7f7c39ccb6045cf1fd5e7684a484c445291b44d4 only
changes the tracing code which currently isn't enabled.  Or we
get some sort of miscompilation due slightly different noop
macros.

How big is the filesystem where you see this corruption? Maybe I could
reproduce it locally with a xfs_metadump image.

> 
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