[Bug 250784] integer divide fault in zfs_rmnode

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=250784

            Bug ID: 250784
           Summary: integer divide fault in zfs_rmnode
           Product: Base System
           Version: 12.2-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs at FreeBSD.org
          Reporter: stevenschlansker at gmail.com

I recently upgraded to 
FreeBSD 12.2-RELEASE r366954 GENERIC amd64
and run plexmediaserver-plexpass-1.20.3.3483
Now I consistently receive a kernel panic soon after boot:

Fatal trap 18: integer divide fault while in kernel mode
cpuid = 11; apic id = 0b
instruction pointer     = 0x20:0xffffffff82963725
stack pointer           = 0x28:0xfffffe009f78d480
frame pointer           = 0x28:0xfffffe009f78d510
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 2247 (Plex Media Server)
trap number             = 18
panic: integer divide fault
cpuid = 11
time = 1604252527
KDB: stack backtrace:
#0 0xffffffff80c0a8f5 at kdb_backtrace+0x65
#1 0xffffffff80bbeb1b at vpanic+0x17b
#2 0xffffffff80bbe993 at panic+0x43
#3 0xffffffff8108f911 at trap_fatal+0x391
#4 0xffffffff8108ed97 at trap+0x67
#5 0xffffffff81066f38 at calltrap+0x8
#6 0xffffffff82a148ce at zfs_rmnode+0x5e
#7 0xffffffff82a35612 at zfs_freebsd_reclaim+0x42
#8 0xffffffff812482db at VOP_RECLAIM_APV+0x7b
#9 0xffffffff80c8e376 at vgonel+0x216
#10 0xffffffff80c8e9c5 at vrecycle+0x45
#11 0xffffffff82a355bd at zfs_freebsd_inactive+0xd
#12 0xffffffff812481ab at VOP_INACTIVE_APV+0x7b
#13 0xffffffff80c8d0b0 at vinactive+0xf0
#14 0xffffffff80c8d5c8 at vputx+0x2b8
#15 0xffffffff80c9722c at kern_unlinkat+0x20c
#16 0xffffffff810904c7 at amd64_syscall+0x387
#17 0xffffffff8106785e at fast_syscall_common+0xf8
Uptime: 1m27s

I am not clear exactly which file is unlinked.  Thank you for any assistance in
resolving this situation, and let me know if I can provide additional
information.

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