persistent integer divide fault panic in zfs_rmnode

[Steven Schlansker]

Thank you Xin, indeed, this patch against 12.2-RELEASE seems to have
cleared the issue up entirely!
We'll try out openzfs once 13 is released.



On Wed, Jan 27, 2021 at 3:23 PM Xin Li <delphij at delphij.net> wrote:

> On 1/27/21 10:15, Steven Schlansker wrote:
> > Does anybody have any suggestions as to what I can try next regarding
> this
> > panic?
> >
> > At this point the only path forward I see is to declare the zpool corrupt
> > and attempt to
> > move all the data off, destroy, and migrate back, and hope the recreated
> > pool does not tickle this bug.
> >
> > That would be a pretty disappointing end to a long fatal-problem-free run
> > with ZFS.
>
> Could you please try the attached patch? (Full context:
> https://github.com/openzfs/zfs/issues/8778 )
>
> Cheers,
>