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Date:      Wed, 02 Jun 2021 07:09:00 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 256368] FreebBSD 13 does not boot after ZIL remove: panic: VERIFY(nvlist_lookup_uint64(configs[i], ZPOOL_CONFIG_POOL_TXG, &txg)
Message-ID:  <bug-256368-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D256368

            Bug ID: 256368
           Summary: FreebBSD 13 does not boot after ZIL remove: panic:
                    VERIFY(nvlist_lookup_uint64(configs[i],
                    ZPOOL_CONFIG_POOL_TXG, &txg)
           Product: Base System
           Version: 13.0-STABLE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: rpalov@e-card.bg

Hello all,

We face bug with bootable zpool.=20

It can be reproduced very easy.=20

1) Install FreeBSD13 from official images with ZFS root partition and add o=
ne
disk for ZIL.=20

2) Write some megabytes to /root/example.txt for example.

3) Remove the ZIL.

*) Until here if you restart the OS between each step it boots successful.=
=20

4) Add the same of new hdd as ZIL.=20

5) Reboot OS

After step 5 the OS falls in booting loop. FreeBSD boot, pass to mounting r=
oot
boot order step and then comes kernel panic with message :=20

panic: VERIFY(nvlist_lookup_uint64(configs[i], ZPOOL_CONFIG_POOL_TXG, &txg)

6) To restore normal boot process, you need to boot from live-media, import=
 the
pool and remove the ZIL

My search in bugs database found few similar reports for older FreeBSD
versions.

Cheers
Rumen Palov

--=20
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