Reproducible Kernel Panic on 8.1-STABLE [SEC=UNCLASSIFIED]

Hi all,

I have come across a bug that triggers a kernel panic on 8.1-STABLE(r213395) through the
use of /usr/ports/sysutils/fusefs-sshfs. Typically i do an sshfs mount as such:

   #sshfs username@hostname:/home/username local_mountpoint/

This mounts the remote filesystem fine. However, when i edit and save a file in
say vi on the remote sshfs i get the following panic everytime:

   FreeBSD/amd64 (hostname.com) (ttyu0)

   login:

   Fatal trap 12: page fault while in kernel mode
   cpuid = 2; apic id = 02
   fault virtual address   = 0x0
   fault code              = supervisor read instruction, page not present
   instruction pointer     = 0x20:0x0
   stack pointer           = 0x28:0xffffff80e9d1d9d0
   frame pointer           = 0x28:0xffffff80e9d1db50
   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         = 1749 (vim)
   trap number             = 12
   panic: page fault
   cpuid = 2
   Uptime: 17m11s
   Physical memory: 8096 MB
   Dumping 1591 MB:

It then seems to hang and not actually do a dump and i need to physically reset
the box.

If there is anything i can do to further assist in debugging please let me know.

   -Alex

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