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Bug 1377931 - XFS corruption when xfs_copy a V5 XFS to multiple targets
Summary: XFS corruption when xfs_copy a V5 XFS to multiple targets
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: xfsprogs
Version: 7.3
Hardware: All
OS: Linux
urgent
high
Target Milestone: rc
: 7.4
Assignee: Eric Sandeen
QA Contact: Zorro Lang
URL:
Whiteboard:
: 1406654 1436652 (view as bug list)
Depends On:
Blocks: 1298243 1299988 1317092 1436652 1440030 1446211 1450875
TreeView+ depends on / blocked
 
Reported: 2016-09-21 04:42 UTC by Zorro Lang
Modified: 2017-08-01 23:11 UTC (History)
9 users (show)

Fixed In Version: xfsprogs-4.5.0-10.el7
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
: 1450875 (view as bug list)
Environment:
Last Closed: 2017-08-01 23:11:44 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
Fix meta UUID handling on multiple copies.patch (3.19 KB, text/plain)
2017-03-29 08:31 UTC, IBM Bug Proxy 		no flags Details
xfsprogs rpm package (920.77 KB, text/plain)
2017-03-29 08:31 UTC, IBM Bug Proxy 		no flags Details
xfsprogs rpm package (65.48 KB, text/plain)
2017-03-29 08:31 UTC, IBM Bug Proxy 		no flags Details
dmesg of test (2.23 KB, text/plain)
2017-03-29 08:31 UTC, IBM Bug Proxy 		no flags Details
Test full log (15.13 KB, text/plain)
2017-03-29 08:33 UTC, IBM Bug Proxy 		no flags Details
View All


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2017:2206 0 normal SHIPPED_LIVE xfsprogs bug fix update 2017-08-01 19:42:23 UTC

Description Zorro Lang 2016-09-21 04:42:44 UTC 
Description of problem:
I'm trying to modify xfs/073, to make it cover V5 xfs copy test. Then I found fs corruption when xfs_copy a V5 XFS to multiple targets(xfs_copy $dev_with_v5_xfs $target1 $target2), then xfs_repair -n will find fs corruption. V4 XFS(crc=0) no this problem. 

Version-Release number of selected component (if applicable):
xfsprogs-4.5.0-8.el7.x86_64

How reproducible:
100%

Steps to Reproduce:
1. mkfs.xfs -m crc=1 -d name=fsfile,file=1,size=512m
2. xfs_copy fsfile target1 target2
3. xfs_repair -n target1
4. xfs_repair -n target2

Actual results:
Step#3 and/or step$4 will find corruption

Expected results:
no corruption

Additional info:
Eric has sent a patch:
  "[PATCH] xfs_copy: Fix meta UUID handling on multiple copies"
to upstream to fix this problem.
Comment 2 Eric Sandeen 2016-09-21 13:19:44 UTC 
Moving to 7.4, I don't see this as a blocker for rhel7.3 - xfs_copy isn't in wide use, when used, multiple targets are rare, the corruption is immediately discoverable, and it can be worked around by doing one copy at a time.
Comment 7 Eric Sandeen 2017-03-01 16:27:32 UTC 
*** Bug 1406654 has been marked as a duplicate of this bug. ***
Comment 12 Zorro Lang 2017-03-28 13:13:02 UTC 
Reproduced on xfsprogs-4.5.0-9.el7_3:

=== copying scratch device to multiple targets
Creating file <FSIMAGE1>
Creating file <FSIMAGE2>
 0%  ... 10%  ... 20%  ... 30%  ... 40%  ... 50%  ... 60%  ... 70%  ... 80%  ... 90%  ... 100%

All copies completed.
checking new image
mounting new image on loopback
comparing new image files to old
comparing new image directories to old
comparing new image geometry to old
unmounting and removing new image
checking new image
_check_xfs_filesystem: filesystem on /mnt/test/13055.image2 is inconsistent (c)
(see /root/git/xfstests-dev/results//xfs/073.full for details)
_check_xfs_filesystem: filesystem on /mnt/test/13055.image2 is inconsistent (r)


Test passed on xfsprogs-4.5.0-11.el7 with different block size:
xfs/073 16s ... 16s
Ran: xfs/073
Passed all 1 tests
Comment 13 Eric Sandeen 2017-03-28 21:28:06 UTC 
*** Bug 1436652 has been marked as a duplicate of this bug. ***
Comment 14 IBM Bug Proxy 2017-03-29 08:31:25 UTC 
Created attachment 1267248 [details]
Fix meta UUID handling on multiple copies.patch
Comment 15 IBM Bug Proxy 2017-03-29 08:31:31 UTC 
Created attachment 1267249 [details]
xfsprogs rpm package
Comment 16 IBM Bug Proxy 2017-03-29 08:31:34 UTC 
Created attachment 1267250 [details]
xfsprogs rpm package
Comment 17 IBM Bug Proxy 2017-03-29 08:31:38 UTC 
Created attachment 1267251 [details]
dmesg of test
Comment 18 IBM Bug Proxy 2017-03-29 08:33:03 UTC 
Created attachment 1267252 [details]
Test full log
Comment 20 IBM Bug Proxy 2017-05-09 12:41:37 UTC 
------- Comment From hannsj_uhl.com 2017-05-09 08:28 EDT-------
Comment from  Harish Sriram 2017-05-09 07:05:38 CDT

The issue in this bugzilla is resolved.

# rpm -qa | grep xfs
xfsprogs-devel-4.5.0-11.el7.ppc64le
xfsdump-3.1.4-1.el7.ppc64le
xfsprogs-4.5.0-11.el7.ppc64le

# ./check tests/xfs/073
FSTYP         -- xfs (non-debug)
PLATFORM      -- Linux/ppc64le zzfp189p1 4.11.0-1.el7.ppc64le
MKFS_OPTIONS  -- -f -bsize=4096 /dev/loop1
MOUNT_OPTIONS -- -o context=system_u:object_r:root_t:s0 /dev/loop1 /mnt/scratch

xfs/073	 28s

# uname -a
Linux linux 4.11.0-1.el7.ppc64le #1 SMP Wed May 3 18:32:58 EDT 2017 ppc64le ppc64le ppc64le GNU/Linux
Comment 21 Hanns-Joachim Uhl 2017-05-09 13:03:29 UTC 
oops ... the previous comment has to read:
"
Comment from  Harish Sriram 2017-05-09 07:05:38 CDT

The issue in this bugzilla is resolved.

# rpm -qa | grep xfs
xfsprogs-devel-4.5.0-11.el7.ppc64le
xfsdump-3.1.4-1.el7.ppc64le
xfsprogs-4.5.0-11.el7.ppc64le

# ./check tests/xfs/073
FSTYP         -- xfs (non-debug)
PLATFORM      -- Linux/ppc64le zzfp189p1 4.11.0-1.el7.ppc64le
MKFS_OPTIONS  -- -f -bsize=4096 /dev/loop1
MOUNT_OPTIONS -- -o context=system_u:object_r:root_t:s0 /dev/loop1 /mnt/scratch

xfs/073	 28s
Ran: xfs/073
Passed all 1 tests

# uname -a
Linux linux 4.11.0-1.el7.ppc64le #1 SMP Wed May 3 18:32:58 EDT 2017 ppc64le ppc64le ppc64le GNU/Linux
"
...
Comment 25 errata-xmlrpc 2017-08-01 23:11:44 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://access.redhat.com/errata/RHBA-2017:2206
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