[Bug 250816] ZFS cannot import its own export on AWS EC2 12.1 & 12.2-RELEASE

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=250816

--- Comment #8 from Gunther Schadow <raj at gusw.net> ---
Thank you for your initial interest. 

Colin, I don't know if other platforms are affected. For sure it's not hardware
dependent (same for amd and arm). I hope some people would just try to cut and
paste my little test script, it couldn't be easier. Please, anyone looking at
this: try and post your results. 12.2 and 12.1 are suspect. But it could be the
specific kernel built used for EC2 AMI. Unfortunately these days the kernel
sources are no longer part of the normal system setup, and I admit have
forgotten a little bit the grunt of running config and the corners of the sys/
tree. (I used to, after all, I have written one device driver for FreeBSD-2.x).

Andriy, here is the dtrace result:

root at geli:/home/ec2-user # dtrace -qn 'zfs-dbgmsg{printf("%s\n",
stringof(arg0))}' -c 'zpool import -d zfstd'
dtrace: buffer size lowered to 1m
   pool: testpool
     id: 4731456272891350032
  state: UNAVAIL
 status: One or more devices contains corrupted data.
 action: The pool cannot be imported due to damaged devices or data.
   see: http://illumos.org/msg/ZFS-8000-5E
 config:

        testpool                  UNAVAIL  insufficient replicas
          raidz1-0                UNAVAIL  insufficient replicas
            16509719173445145761  UNAVAIL  corrupted data
            12908006057264574797  UNAVAIL  corrupted data
spa_tryimport: importing testpool
spa_load($import, config trusted): LOADING
spa_load($import, config untrusted): vdev tree has 1 missing top-level vdevs.
spa_load($import, config untrusted): current settings allow for maximum 0
missing top-level vdevs at this stage.
spa_load($import, config untrusted): FAILED: unable to open vdev tree
[error=22]
  vdev 0: root, guid: 4731456272891350032, path: N/A, can't open
    vdev 0: raidz, guid: 15929167801800586952, path: N/A, can't open
      vdev 0: disk, guid: 16509719173445145761, path:
/usr/home/ec2-user/zfstd/0, can't open
      vdev 1: disk, guid: 12908006057264574797, path:
/usr/home/ec2-user/zfstd/1, can't open
spa_load($import, config untrusted): UNLOADING

Hope that helps.

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