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Bug 1346927 - xfs_check (xfs_db) broken on multi-inode-record inode chunks
Summary: xfs_check (xfs_db) broken on multi-inode-record inode chunks
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: xfsprogs
Version: 7.3
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Eric Sandeen
QA Contact: Eryu Guan
URL:
Whiteboard:
: 1347671 (view as bug list)
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-06-15 16:19 UTC by Brian Foster
Modified: 2016-11-04 06:24 UTC (History)
1 user (show)

Fixed In Version: xfsprogs-4.5.0-4.el7
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2016-11-04 06:24:27 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2016:2431 0 normal SHIPPED_LIVE xfsprogs bug fix and enhancement update 2016-11-03 14:00:51 UTC

Description Brian Foster 2016-06-15 16:19:19 UTC 
xfs_check is currently broken for multi-inode-record situations (e.g., 64k block sizes on supported arches). To reproduce, format a large block size fs and run check:

# mkfs.xfs -f -b size=64k <dev>
# xfs_db -c check <dev>
bad magic number 0 for inode 1152
bad magic number 0 for inode 1153
bad magic number 0 for inode 1154
bad magic number 0 for inode 1155
bad magic number 0 for inode 1156
bad magic number 0 for inode 1157
bad magic number 0 for inode 1158
bad magic number 0 for inode 1159
bad magic number 0 for inode 1160
bad magic number 0 for inode 1161
...

This occurs due to some broken logic in upstream xfsprogs commit bb2f98b7 ("xfs_db: make check work for sparse inodes"). Since this patch adds support for sparse inodes and sparse inodes are not yet supported in rhel, the best course of action is probably to revert/drop the patch from xfsprogs in rhel 7.3.
Comment 1 Eric Sandeen 2016-06-15 16:20:24 UTC 
Thanks Brian.  That patch reverts cleanly.
Comment 2 Eric Sandeen 2016-06-25 00:38:27 UTC 
09c93e5 xfs_db: Revert "xfs_db: make check work for sparse inodes"
Comment 4 Eryu Guan 2016-07-21 03:41:26 UTC 
*** Bug 1347671 has been marked as a duplicate of this bug. ***
Comment 5 Eryu Guan 2016-07-21 03:47:03 UTC 
Tested with xfsprogs-4.5.0-5.el7, xfs/032 and xfs/186 (v4 only) all passed without problems. A manual check passed too

[root@dhcp-66-87-213 xfstests]# rpm -q xfsprogs
xfsprogs-4.5.0-5.el7.x86_64
[root@dhcp-66-87-213 xfstests]# mkfs.xfs -f -b size=64k /dev/vda6
meta-data=/dev/vda6              isize=512    agcount=4, agsize=36864 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=0, sparse=0
data     =                       bsize=65536  blocks=147456, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=65536  ascii-ci=0 ftype=1
log      =internal log           bsize=65536  blocks=512, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=65536  blocks=0, rtextents=0
[root@dhcp-66-87-213 xfstests]# xfs_db -c check /dev/vda6
[root@dhcp-66-87-213 xfstests]# echo $?
0

Move to VERIFIED.
Comment 7 errata-xmlrpc 2016-11-04 06:24:27 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2016-2431.html
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