[Bug 222734] 11.1-RELEASE kernel panics while importing ZFS pool

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=222734

            Bug ID: 222734
           Summary: 11.1-RELEASE kernel panics while importing ZFS pool
           Product: Base System
           Version: 11.1-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: freebsd at erwanlegrand.com

I have made an attempt at upgrading from FreeBSD 11.0-RELEASE to
11.1-RELEASE. Unfortunately, the 11.1-RELEASE kernel panics with the
following error:

panic: Solaris(panic): blkptr at 0xfffffe00033e5f80 has invalid CHECKSUM 0

The backtrace is as follows:

kbd_backtrace+0x67
vpanic+0x186
panic+0x43
vcmn_err+0xc2
zfs_panic_recover+0x5a
zfs_blkptr_verify+0x8b
zio_read+0x2c
spa_load_verify_cb+0x14a
traverse_visitbp+0x1f8
traverse_visitbp+0x400
traverse_visitbp+0x400
traverse_visitbp+0x400
traverse_visitbp+0x400
traverse_dnode+0xc7
traverse_visitbp+0x753
traverse_impl+0x22b
traverse_pool+0x16d
spa_load+0x1bce

The root file system is part of this ZFS pool, which means I can't
even boot my system. Attempting to import the pool from the shell
prompt after booting from 11.1-RELEASE installation media also results
in a kernel panic.

The 11.0-RELEASE kernel boots from this ZFS pool without trouble.

Scrubing does not find any error. The pool is in perfect health according to
"zpool status" (on 11.0-RELEASE).

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