linux-kernel - Re: PROBLEM: XFS in-memory corruption with reflinks and duperemove: XFS (dm-4): Internal error xfs_trans_cancel at line 1048 of file fs/xfs/xfs_trans.c. Caller xfs_reflink_remap

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Message-ID: <3fa09c4e-6233-2216-f7c8-a28bd7dcaf04@sandeen.net>
Date:   Wed, 6 May 2020 20:19:34 -0500
From:   Eric Sandeen <sandeen@...deen.net>
To:     Edwin Török <edwin@...rok.net>,
        "Darrick J. Wong" <darrick.wong@...cle.com>
Cc:     linux-xfs@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: PROBLEM: XFS in-memory corruption with reflinks and duperemove:
 XFS (dm-4): Internal error xfs_trans_cancel at line 1048 of file
 fs/xfs/xfs_trans.c. Caller xfs_reflink_remap_extent+0x100/0x560

On 5/6/20 6:20 PM, Edwin Török wrote:
>> (Obviously, a full metadump would be useful for confirming the shape
>> of
>> the refcount btree, but...first things first let's look at the
>> filefrag
>> output.)
> I'll try to gather one, and find a place to store/share it.
> 
> Best regards,
> --Edwin

Metadumps are compact to start with and usually compress pretty well.
Obviously a very large filesystem with lots of metadata will take some
space, but it might not be that bad.

-Eric