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Re: Metadata CRC error upon unclean unmount

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: Metadata CRC error upon unclean unmount
From: Fanael Linithien <fanael4@xxxxxxxxx>
Date: Tue, 24 Jun 2014 23:50:52 +0200
Cc: xfs@xxxxxxxxxxx
Delivered-to: xfs@xxxxxxxxxxx
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In-reply-to: <20140624201946.GJ9508@dastard>
References: <CA+o=1OW0OXhzU+b9ACMZzg0dq=B7BSj+yPXD2Vrr9F6mWK8ruQ@xxxxxxxxxxxxxx> <20140624201946.GJ9508@dastard>
Managed to get the "metadata CRC error" again. Trying to get useful
info from an initramfs recovery shell is fun.

dmesg:

[    4.215841] SGI XFS with ACLs, security attributes, realtime, large
block/inode numbers, no debug enabled
[    4.224047] XFS (sda1): Mounting V5 Filesystem
[    4.527156] XFS (sda1): Starting recovery (logdev: internal)
[    4.546698] XFS (sda1): Metadata CRC error detected at
xfs_agi_read_verify+0x5e/0x110 [xfs], block 0x2
[    4.547083] XFS (sda1): Unmount and run xfs_repair
[    4.547347] XFS (sda1): First 64 bytes of corrupted metadata buffer:
[    4.547670] ffff8800364d3600: 58 41 47 49 00 00 00 01 00 00 00 00
00 13 d0 00  XAGI............
[    4.548027] ffff8800364d3610: 00 00 17 40 00 00 00 03 00 00 00 01
00 00 00 2b  ...@...........+
[    4.548382] ffff8800364d3620: 00 0c 95 40 ff ff ff ff ff ff ff ff
ff ff ff ff  ...@............
[    4.548752] ffff8800364d3630: ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff  ................
[    4.549420] XFS (sda1): metadata I/O error: block 0x2
("xfs_trans_read_buf_map") error 74 numblks 1


Metadata dump (xz + base64): https://clbin.com/4KYSR

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