[Bug 167685] [zfs] ZFS on USB drive prevents shutdown / reboot

From: <bugzilla-noreply_at_freebsd.org>
Date: Sun, 04 Sep 2022 21:35:47 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=167685

Vadym Khondar <vadim.khondar+freebsd-bugs@gmail.com> changed:

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                 CC|                            |vadim.khondar+freebsd-bugs@
                   |                            |gmail.com

--- Comment #8 from Vadym Khondar <vadim.khondar+freebsd-bugs@gmail.com> ---
I just hit this issue with 13.1-STABLE.

I have zpools that include USB disks. On reboot, system hangs with messages
like "Solaris: WARNING: Pool 'pool' has encountered an uncorrectable I/O
failure and has been suspended." This happens after 'All buffers synced' when
there is a series of messages about detaching usb devices, e.g.: "ukbd0:
detached", "uhid0: detached", "umass0: detached".

I also noticed that single user mode with all zfs partitions mounted (doing
/etc/rc.d/zfs start manually after logging in) this does not happen - no usb
detached messages and system reboots normally.

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