[Bug 249985] kernel panic at shutdown in zfs_acl_free() and list_remove()

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=249985

            Bug ID: 249985
           Summary: kernel panic at shutdown in zfs_acl_free() and
                    list_remove()
           Product: Base System
           Version: CURRENT
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs at FreeBSD.org
          Reporter: madpilot at FreeBSD.org

Created attachment 218405
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=218405&action=edit
dump info file

Hi,

On my laptop I'm experiencing some kernel panics, mainly at startup or
shutdown. I've got a good dump from a panic happening in shutdown, I'm
attaching the core.txt and info files.

The panic happens every 3-4 shutdowns, and sometimes at startup, I'll also add
a dump from the startup crash as soon as I can get one.

The machine is running r366077, with a GENERIC-NODEBUG kernel. I did test the
ram and it looks fine.

Also this machine already had a zfs elated issue due to a shutdown panic some
time ago, it was refusing to boot with "zfs: allocating allocated segment". I
reinstalled the OS from scratch at the time.

I am unable to tell much more, apart from the clear connection to ZFS.


If any further information is needed please ask. I do have the core file, so if
some further investigation is needed I can try that, if told what to look at.


Thanks in advance.

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