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Re: [PATCH] Re: XFS: Assertion failed: first <= last && last < BBTOB(bp-

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: [PATCH] Re: XFS: Assertion failed: first <= last && last < BBTOB(bp->b_length), file: fs/xfs/xfs_trans_buf.c, line: 568
From: Ben Myers <bpm@xxxxxxx>
Date: Fri, 30 Aug 2013 09:56:45 -0500
Cc: Brian Foster <bfoster@xxxxxxxxxx>, xfs@xxxxxxxxxxx, Mark Tinguely <tinguely@xxxxxxx>
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <521F4096.9040707@xxxxxxx>
References: <52165830.8050006@xxxxxxxxxx> <20130826041330.GU6023@dastard> <521F4096.9040707@xxxxxxx>
User-agent: Mutt/1.5.20 (2009-06-14)
On Thu, Aug 29, 2013 at 07:37:42AM -0500, Mark Tinguely wrote:
> On 08/25/13 23:13, Dave Chinner wrote:
> >xfs: fix calculation of the number of node entries in a dir3 node
> >
> >From: Dave Chinner<dchinner@xxxxxxxxxx>
> >
> >The calculation doesn't take into account the size of the dir v3
> >header, so overestimates the hash entries in a node. This causes
> >directory buffer overruns when splitting and merging nodes.
> >
> >Signed-off-by: Dave Chinner<dchinner@xxxxxxxxxx>
> >---
> 
> Makes sense to me for the inode v3 assert.
> 
> Reviewed-by: Mark Tinguely <tinguely@xxxxxxx>
> 
> The remove assert with the same test must be in common code; it can
> be triggered in both versions of the inode (Linux 3.10 - TOT). The
> assert on the remove may require the test to be run until the
> filesystem is full before doing the remove.

Applied.

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