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Re: XFS_WANT_CORRUPTED_GOTO at line 1545 of file fs/xfs/xfs_alloc.c

To: beebol <ww103421245@xxxxxxx>
Subject: Re: XFS_WANT_CORRUPTED_GOTO at line 1545 of file fs/xfs/xfs_alloc.c
From: Mark Tinguely <tinguely@xxxxxxx>
Date: Tue, 21 Apr 2015 08:23:50 -0500
Cc: xfs@xxxxxxxxxxx
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <1429589421630-35029.post@xxxxxxxxxxxxx>
References: <1429589421630-35029.post@xxxxxxxxxxxxx>
User-agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:9.0) Gecko/20120122 Thunderbird/9.0
On 04/20/15 23:10, beebol wrote:
SOSïïï
This is what causes the problem, whether it can be reproduced?
How to fix this problem?

Looking forward to your reply.
information:
#cat /etc/redhat-release
Red Hat Enterprise Linux Server release 5.3 (Tikanga)

  #uname -a
Linux 1046_qd_119_cnc 2.6.18-194.el5 #1 SMP Tue Mar 16 21:52:39 EDT 2010
x86_64 x86_64 x86_64 GNU/Linux

# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda7             5.9G  712M  4.9G  13% /
/dev/sda3             3.9G  825M  2.9G  22% /var
/dev/sda2             5.9G  2.2G  3.4G  39% /usr
/dev/sda1             122M   18M   99M  15% /boot
tmpfs                  16G     0   16G   0% /dev/shm
/dev/sda8             1.7T  512G  1.2T  32% /home

#fstab
LABEL=/home             /home                   xfs
defaults,noatime,nodiratime        1 2

install packages:
xfsprogs-2.9.4-4.el5.x86_64.rpm
xfsprogs-devel-2.9.4-4.el5.x86_64.rpm
kernel-module-xfs-2.6.18-128.el5-0.4-4.slc5.x86_64.rpm

/var/log/message:

Apr 20 12:07:17 1046_qd_119 kernel: XFS internal error
XFS_WANT_CORRUPTED_GOTO at line 1545 of file fs/xfs/xfs_alloc.c.  Caller
0xffffffff882bc961

Somehow blocks are in the free list and are allocated at the same time. The corruption can happen long before it is tripped over in the free. A form of this problem has been around for a long time and has even popped in more recent community XFS in the past year.

If you want to make a metadata dump, I will look at it. I bet there are other similarly free/allocated or duplicately allocated blocks, but won't show how they got into that condition.

You will have to do an "xfs_repair -L". Use a more recent xfs_repair to get all of the problems resolved (like zeroed startblocks).

--Mark Tinguely.

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