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Re: xfs_efi_item slab corruption. (v3.9-10936-g51a26ae)

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: xfs_efi_item slab corruption. (v3.9-10936-g51a26ae)
From: Dave Jones <davej@xxxxxxxxxx>
Date: Tue, 7 May 2013 20:43:50 -0400
Cc: Mark Tinguely <tinguely@xxxxxxx>, CAI Qian <caiqian@xxxxxxxxxx>, xfs@xxxxxxxxxxx
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <20130507235458.GG24635@dastard>
References: <518954DE.4070803@xxxxxxx> <20130507193146.GA7539@xxxxxxxxxx> <51895CD7.7040806@xxxxxxx> <20130507195954.GA8384@xxxxxxxxxx> <51895E51.2050508@xxxxxxx> <20130507202217.GA9883@xxxxxxxxxx> <518962FC.2060509@xxxxxxx> <20130507222256.GD24635@dastard> <51898400.8000900@xxxxxxx> <20130507235458.GG24635@dastard>
User-agent: Mutt/1.5.21 (2010-09-15)
On Wed, May 08, 2013 at 09:54:58AM +1000, Dave Chinner wrote:
 > Dave, the patch below should fix the problem.
 > xfs: Don't reference the EFI after it is freed
 > From: Dave Chinner <dchinner@xxxxxxxxxx>
 > Checking the EFI for whether it is being released from recovery
 > after we've already released the known active reference is a mistake
 > worthy of a brown paper bag. Fix the (now) obvious use after free
 > that it can cause.

Yup, that works for me.



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