https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=274878
Alan Somers <asom...@freebsd.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|ZFS: Corruption in sysctl |ZFS: sysctl
|"kstat.zfs.POOLNAME.dataset |"kstat.zfs.POOLNAME.dataset
|.objset-0xXXXX.dataset_name |.objset-0xXXXX.dataset_name
|" |" not updated when renaming
| |zvols
--- Comment #1 from Alan Somers <asom...@freebsd.org> ---
I've reproduced the issue in a VM. As I suspected, it's caused by renames.
But _only_ for zvols. Renaming file systems does not trigger the bug.
Steps to Reproduce
==================
$ zpool create testpool vtbd1
$ zfs create -V1m testpool/testvol
$ sysctl -n kstat.zfs.testpool.dataset.objset-$(printf 0x%x $(zfs get -Hpo
value objsetid testpool/testvol)).dataset_name
testpool/testvol
$ sudo zfs rename testpool/testvol testpool/yyy
$ sysctl -n kstat.zfs.testpool.dataset.objset-$(printf 0x%x $(zfs get -Hpo
value objsetid testpool/yyy)).dataset_name
testpool/testvol
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