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Date:      Sun, 04 Sep 2022 21:35:47 +0000
From:      bugzilla-noreply@freebsd.org
To:        fs@FreeBSD.org
Subject:   [Bug 167685] [zfs] ZFS on USB drive prevents shutdown / reboot
Message-ID:  <bug-167685-3630-AKu9cFeBrz@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-167685-3630@https.bugs.freebsd.org/bugzilla/>
References:  <bug-167685-3630@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D167685

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

           What    |Removed                     |Added
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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' wh=
en
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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