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Re: 2.6.30-06725: xfs_fsr: Assertion failed: ip->i_delayed_blks == 0, f

To: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Subject: Re: 2.6.30-06725: xfs_fsr: Assertion failed: ip->i_delayed_blks == 0, file: fs/xfs/xfs_bmap.c, line: 5991
From: Alexander Beregalov <a.beregalov@xxxxxxxxx>
Date: Fri, 19 Jun 2009 02:04:41 +0400
Cc: xfs@xxxxxxxxxxx
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References: <a4423d670906181231r7388df5am394bc55508272b3@xxxxxxxxxxxxxx> <20090618205102.GA5805@xxxxxxxxxxxxx>
2009/6/19 Christoph Hellwig <hch@xxxxxxxxxxxxx>:
> Did this happens once or multiple times?  It seems that for some
Once. But I was able to reproduce it (not so easy).
The patch does not work.

> reason xfs_flush_pages didn't flush all delalloc space and then
> we rightfully hit this assertation.
>
> I really hate the code in xfs_flush_pages with the optimizations it
> tries to apply.  Can you give the patch below which removes the
> optimizations and uses some more core VM code instead of doing our
> own thing?

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