Bug 146786 - [zfs] zpool import hangs with checksum errors
Summary: [zfs] zpool import hangs with checksum errors
Status: Closed FIXED
Alias: None
Product: Base System
Classification: Unclassified
Component: kern (show other bugs)
Version: 8.0-STABLE
Hardware: Any Any
: Normal Affects Only Me
Assignee: freebsd-bugs (Nobody)
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2010-05-21 07:30 UTC by Joseph Lenox
Modified: 2024-12-17 07:09 UTC (History)
1 user (show)

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Description Joseph Lenox 2010-05-21 07:30:05 UTC 
zpool is hanging (top status: tx->tx) indefinitely when attempting to import a pool containing zfs checksum mismatches. zpool cannot be killed, and a reboot of the system is required to access any zfs commands (even for an unaffected pool). 

This problem is evident on 8.0-RELEASE and 8.1-PRERELEASE.

Command used:

/sbin/zpool import -p failmode=panic -f valkyrie

/var/log/messages excerpt:
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd3 offset=494926778368 size=1024
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd1 offset=494926778368 size=1024
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd4 offset=494926778368 size=1024
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd5 offset=494926778368 size=1024
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd0 offset=494926778880 size=512
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd2 offset=494926778880 size=512
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd0 offset=129568120320 size=1024
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd2 offset=129568120320 size=1024
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd1 offset=129568120320 size=1024
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd3 offset=129568120320 size=1024
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd4 offset=129568120320 size=512
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd5 offset=129568120320 size=512
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd4 offset=289968832000 size=1024
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd5 offset=289968832000 size=1024
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd0 offset=289968832512 size=1024
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd2 offset=289968832512 size=1024
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd1 offset=289968832512 size=512
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd3 offset=289968832512 size=512
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd3 offset=494926778368 size=1024
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd1 offset=494926778368 size=1024
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd4 offset=494926778368 size=1024
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd5 offset=494926778368 size=1024
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd0 offset=494926778880 size=512
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd2 offset=494926778880 size=512
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd0 offset=129568120320 size=1024
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd2 offset=129568120320 size=1024
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd1 offset=129568120320 size=1024
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd3 offset=129568120320 size=1024
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd4 offset=129568120320 size=512
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd5 offset=129568120320 size=512
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd4 offset=289968832000 size=1024
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd5 offset=289968832000 size=1024
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd0 offset=289968832512 size=1024
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd2 offset=289968832512 size=1024
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd1 offset=289968832512 size=512
May 21 00:58:32 silmeria root: ZFS: checksum mismatch, zpool=valkyrie path=/dev/aacd3 offset=289968832512 size=512
May 21 00:58:32 silmeria root: ZFS: zpool I/O failure, zpool=valkyrie error=86
May 21 00:58:32 silmeria root: ZFS: vdev I/O failure, zpool=valkyrie path= offset= size= error=

How-To-Repeat: Invoke a checksum error in a ZFS dataset. This can be done with an enabled write cache for a RAID controller and inopportune powercycling.

Any attempt to access the pool in that system will cause checksum mismatch errors to be reported in /var/log/messages.
Comment 1 Mark Linimon freebsd_committer freebsd_triage 2010-08-04 04:28:30 UTC 
Responsible Changed
From-To: freebsd-bugs->freebsd-fs

Over to maintainer(s).
Comment 2 Eitan Adler freebsd_committer freebsd_triage 2017-12-31 07:59:55 UTC 
For bugs matching the following criteria:

Status: In Progress Changed: (is less than) 2014-06-01

Reset to default assignee and clear in-progress tags.

Mail being skipped
Comment 3 Michael Dexter freebsd_triage 2024-12-17 07:09:35 UTC 
The ZFS code in 8.0/8.1 has been replaced with OpenZFS. Please re-test and re-open the PR if still an issue.