[Bug 219760] ZFS iSCSI w/ Win10 Initiator Causes pool corruption
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Sat Jun 3 19:14:39 UTC 2017
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219760
Bug ID: 219760
Summary: ZFS iSCSI w/ Win10 Initiator Causes pool corruption
Product: Base System
Version: 11.0-STABLE
Hardware: amd64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: freebsd-bugs at FreeBSD.org
Reporter: henric_jungheim at yahoo.com
Created attachment 183182
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=183182&action=edit
dmesg
With a zvol to provide a 1TB iSCSI drive for a Windows 10 initiator, using
"Create a system image" causes the pool to be corrupted. Neither drive reports
any SMART problems (both have "SMART overall-health self-assessment test
result: PASSED"). The backup completes without errors on the Windows side.
The iSCSI volume is set for 64k blocks and that is also the NTFS cluster size.
The backup is from two SATA SSDs in a laptop and done over a Gigabit Ethernet
link. Bitlocker is enabled for the backup volume on the Windows side, which
could possibly alter the disk access patterns...?
Deleting the zvol, clearing the error, and retrying the backup to a new zvol
causes the same problem. The first try used "FreeBSD 11.0-STABLE #10 r317513:
Thu Apr 27 12:09:34 MST 2017". I updated to "FreeBSD 11.1-PRERELEASE #11
r319488: Thu Jun 1 21:12:33 MST 2017" for the second try.
pool: tank
state: DEGRADED
status: One or more devices has experienced an error resulting in data
corruption. Applications may be affected.
action: Restore the file in question if possible. Otherwise restore the
entire pool from backup.
see: http://illumos.org/msg/ZFS-8000-8A
scan: scrub repaired 0 in 9h34m with 0 errors on Fri Jun 2 22:36:45 2017
config:
NAME STATE READ WRITE CKSUM
tank DEGRADED 0 0 74
mirror-0 ONLINE 0 0 0
gpt/tank0 ONLINE 0 0 0
gpt/tank1 ONLINE 0 0 0
mirror-1 DEGRADED 0 0 148
gpt/tank0b DEGRADED 0 0 148 too many errors
gpt/tank1b DEGRADED 0 0 148 too many errors
errors: Permanent errors have been detected in the following files:
tank/iscsi/mcp2:<0x1>
NAME PROPERTY VALUE SOURCE
tank/iscsi/mcp2 type volume -
tank/iscsi/mcp2 creation Fri Jun 2 12:49 2017 -
tank/iscsi/mcp2 used 1.00T -
tank/iscsi/mcp2 available 3.22T -
tank/iscsi/mcp2 referenced 971G -
tank/iscsi/mcp2 compressratio 1.00x -
tank/iscsi/mcp2 reservation none default
tank/iscsi/mcp2 volsize 1T local
tank/iscsi/mcp2 volblocksize 64K -
tank/iscsi/mcp2 checksum skein inherited from
tank
tank/iscsi/mcp2 compression off local
tank/iscsi/mcp2 readonly off default
tank/iscsi/mcp2 copies 1 default
tank/iscsi/mcp2 refreservation 1.00T local
tank/iscsi/mcp2 primarycache all default
tank/iscsi/mcp2 secondarycache all default
tank/iscsi/mcp2 usedbysnapshots 0 -
tank/iscsi/mcp2 usedbydataset 971G -
tank/iscsi/mcp2 usedbychildren 0 -
tank/iscsi/mcp2 usedbyrefreservation 57.2G -
tank/iscsi/mcp2 logbias latency default
tank/iscsi/mcp2 dedup off default
tank/iscsi/mcp2 mlslabel -
tank/iscsi/mcp2 sync standard default
tank/iscsi/mcp2 refcompressratio 1.00x -
tank/iscsi/mcp2 written 971G -
tank/iscsi/mcp2 logicalused 970G -
tank/iscsi/mcp2 logicalreferenced 970G -
tank/iscsi/mcp2 volmode default default
tank/iscsi/mcp2 snapshot_limit none default
tank/iscsi/mcp2 snapshot_count none default
tank/iscsi/mcp2 redundant_metadata all default
Geom name: ada3
modified: false
state: OK
fwheads: 16
fwsectors: 63
last: 11721045127
first: 40
entries: 152
scheme: GPT
Providers:
1. Name: ada3p1
Mediasize: 6001173463040 (5.5T)
Sectorsize: 512
Stripesize: 4096
Stripeoffset: 0
Mode: r1w1e2
rawuuid: 7830d285-8079-11e6-b5ec-00e081c81bd6
rawtype: 516e7cba-6ecf-11d6-8ff8-00022d09712b
label: tank0b
length: 6001173463040
offset: 1048576
type: freebsd-zfs
index: 1
end: 11721043967
start: 2048
Consumers:
1. Name: ada3
Mediasize: 6001175126016 (5.5T)
Sectorsize: 512
Stripesize: 4096
Stripeoffset: 0
Mode: r1w1e3
Geom name: ada4
modified: false
state: OK
fwheads: 16
fwsectors: 63
last: 11721045127
first: 40
entries: 152
scheme: GPT
Providers:
1. Name: ada4p1
Mediasize: 6001173463040 (5.5T)
Sectorsize: 512
Stripesize: 4096
Stripeoffset: 0
Mode: r1w1e2
rawuuid: 7b35d907-8079-11e6-b5ec-00e081c81bd6
rawtype: 516e7cba-6ecf-11d6-8ff8-00022d09712b
label: tank1b
length: 6001173463040
offset: 1048576
type: freebsd-zfs
index: 1
end: 11721043967
start: 2048
Consumers:
1. Name: ada4
Mediasize: 6001175126016 (5.5T)
Sectorsize: 512
Stripesize: 4096
Stripeoffset: 0
Mode: r1w1e3
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