https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=229958
Bug ID: 229958
Summary: ctld / zfs deadlock
Product: Base System
Version: 11.2-RELEASE
Hardware: Any
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
Hello,
'zfs rename poolA/iscsivolumeX poolA/iscsiVOLx' locks up the ZFS pool poolA, if
/dev/zvol/poolA/iscsivolumeX is used as target LUN path in ctld(8).
The machine is still operational and datasets from other pools are accessable,
but no dataset of poolA.
Reboot doesn't succeed, machine hangs after "Syncing disks, vnodes remaining...
1 1 1 0 0 ..... done"
"All buffers synced."
HANG
I'm quiet sure the pool lockup wasn't an issue in FreeBSD 10, since I often
forgot to disable zvol ctld(8) backends before renaming the dataset.
Is this in any way related to
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=220175 ???
And perhaps my other big ctld(8) problem might be related too?
https://lists.freebsd.org/pipermail/freebsd-stable/2018-July/089268.html
Sorry for combining problem descriptions, but I'm observing severe iSCSI
regressions on all systems I updated to 11.2. Unfortunately initiators were
updated too, so the root cause is not clear.
Thanks,
-harry
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