https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=193803
Bug ID: 193803
Summary: zvol promote failing
Product: Base System
Version: 10.0-RELEASE
Hardware: amd64
OS: Any
Status: Needs Triage
Severity: Affects Many People
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
I'm experiencing lock-up of the ZFS system when doing a specific command
sequence. It is reproducible.
pool structure:
tank/vol/vol1@1
tank/vol/vol2@1
tank/grp/grp1@a, b, c
tank/grp/grp2@a, b, c
Any object under /vol/ and /grp/ are ZVOLs, grp's are clones vol@1.
The commands:
zfs rename tank/vol/vol1@1 tank/vol/vol1@YYYY-MM-DD
zfs rename tank/vol/vol1 tank/trash/YYYY-MM-DD_vol1
zfs rename tank/grp/grp1 tank/vol/vol1
zfs promote tank/vol/vol1
*hangs*
next command:
zfs snapshot tank/vol/vol@1
I can't use 'zfs list' during this time, it is hung:
82867 - I 0:00.00 sh -c zfs ...
82870 - I 0:00.01 sudo zfs promote tank/iscsi/volumes/dfh
82871 - D 0:00.01 zfs promote tank/iscsi/volumes/dfh
82919 - I 0:00.01 sudo zfs get -H -o value available
82920 - D 0:00.00 zfs get -H -o value available
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