[Bug 242319] dmu_object_claim_dnsize in zfs_znode.c results in a kernel panic upon FS mount

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=242319

            Bug ID: 242319
           Summary: dmu_object_claim_dnsize in zfs_znode.c results in a
                    kernel panic upon FS mount
           Product: Base System
           Version: 12.0-STABLE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: bugs at FreeBSD.org
          Reporter: vvelox at vvelox.net

Created attachment 209547
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=209547&action=edit
screenshot of the kernel panic

I've attached a screenshot of the kernel panic.

Currently consistently reproducible via mounting the FS in question.

uname -a
FreeBSD vixen42.vulpes.vvelox.net 12.1-STABLE FreeBSD 12.1-STABLE r354803
vixen42  amd64

Only change from the default is the inclusion of ALTQ.


On a similar note, came across this. Not sure how relevant it...
https://github.com/zfsonlinux/zfs/issues/8910


Post a long SMART self test finishing, going to try setting
vfs.zfs.zil_replay_disable to 1 and seeing if I can mount it that way.

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