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Date:      Thu, 14 Sep 2023 08:15:37 +0000
From:      bugzilla-noreply@freebsd.org
To:        virtualization@FreeBSD.org
Subject:   [Bug 273772] zpool nested in ZVOL becomes unaccesible when zfsd(8) is running on host
Message-ID:  <bug-273772-27103@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D273772

            Bug ID: 273772
           Summary: zpool nested in ZVOL becomes unaccesible when zfsd(8)
                    is running on host
           Product: Base System
           Version: 14.0-STABLE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: bhyve
          Assignee: virtualization@FreeBSD.org
          Reporter: zarychtam@plan-b.pwste.edu.pl

After upgrading to stable/14 a bhyve VM deployed on a ZVOL cannot access its
zpool when zfsd(8) is running on the bhyve host. The VM boots fine when zfs=
d(8)
on the host machine is shut down. The sysctl knob vfs.zfs.vol.recursive is =
set
to 0 on the host.


Trying to mount root from zfs:vmzroot/ROOT/default []...
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
Mounting from zfs:vmzroot/ROOT/default failed with error 6; retrying for 3 =
more
seconds
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
vtbd0: hard error cmd=3Dwrite 1592-1607
vtbd0: hard error cmd=3Dwrite 94371896-94371911
vtbd0: hard error cmd=3Dwrite 94372408-94372423
Mounting from zfs:vmzroot/ROOT/default failed with error 6.

Loader variables:
  vfs.root.mountfrom=3Dzfs:vmzroot/ROOT/default

Manual root filesystem specification:
  <fstype>:<device> [options]
      Mount <device> using filesystem <fstype>
      and with the specified (optional) option list.

    eg. ufs:/dev/da0s1a
        zfs:zroot/ROOT/default
        cd9660:/dev/cd0 ro
          (which is equivalent to: mount -t cd9660 -o ro /dev/cd0 /)

  ?               List valid disk boot devices
  .               Yield 1 second (for background tasks)
  <empty line>    Abort manual input

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