STABLE-9 r230860M

Fatal trap 9: general protection fault while in kernel mode
cpuid = 2; apic id = 02
instruction pointer     = 0x20:0xffffffff80c4af6e
stack pointer           = 0x28:0xffffff845ed68820
frame pointer           = 0x28:0xffffff845ed68850
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         = 0 (zio_write_intr_6)
trap number             = 9
panic: general protection fault
cpuid = 2

#0  doadump (textdump=Variable "textdump" is not available.
) at pcpu.h:224
#1  0xffffffff8044cc00 in kern_reboot (howto=260) at 
/usr/src/sys/kern/kern_shutdown.c:442
#2  0xffffffff8044d0a4 in panic (fmt=0x0) at 
/usr/src/sys/kern/kern_shutdown.c:607
#3  0xffffffff8068247d in trap_fatal (frame=0xffffffff809d2b60, 
eva=Variable "eva" is not available.
) at /usr/src/sys/amd64/amd64/trap.c:819
#4  0xffffffff8068296d in trap (frame=0xffffff845ed68770) at 
/usr/src/sys/amd64/amd64/trap.c:617
#5  0xffffffff8066de0f in calltrap () at 
/usr/src/sys/amd64/amd64/exception.S:228
#6  0xffffffff80c4af6e in zrl_add (zrl=0x89c5ef0000000000)
    at 
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zrlock.c:76
#7  0xffffffff80be41a3 in dbuf_write_done (zio=0xfffffe0215683a50, 
buf=Variable "buf" is not available.
)
    at 
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c:2523
#8  0xffffffff80bde584 in arc_write_done (zio=0xfffffe0215683a50)
    at 
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c:3553
#9  0xffffffff80c48059 in zio_done (zio=0xfffffe0215683a50)
    at 
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c:2951
#10 0xffffffff80c45e0a in zio_execute (zio=0xfffffe0215683a50)
    at 
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c:1196
#11 0xffffffff80c480cf in zio_done (zio=0xfffffe02177516e0)
    at 
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c:2961
#12 0xffffffff80c45e0a in zio_execute (zio=0xfffffe02177516e0)
    at 
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c:1196
#13 0xffffffff80c480cf in zio_done (zio=0xfffffe017ba26000)
    at 
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c:2961
#14 0xffffffff80c45e0a in zio_execute (zio=0xfffffe017ba26000)
    at 
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c:1196
#15 0xffffffff80c480cf in zio_done (zio=0xfffffe011d5506e0)
    at 
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c:2961
#16 0xffffffff80c45e0a in zio_execute (zio=0xfffffe011d5506e0)
    at 
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c:1196
#17 0xffffffff8048bdc2 in taskqueue_run_locked 
(queue=0xfffffe0007599700) at /usr/src/sys/kern/subr_taskqueue.c:308
#18 0xffffffff8048cc14 in taskqueue_thread_loop (arg=Variable "arg" is 
not available.
) at /usr/src/sys/kern/subr_taskqueue.c:497
#19 0xffffffff80422bbf in fork_exit (callout=0xffffffff8048cbce 
<taskqueue_thread_loop>, arg=0xfffffe0007541870,
    frame=0xffffff845ed68c50) at /usr/src/sys/kern/kern_fork.c:995
#20 0xffffffff8066e33e in fork_trampoline () at 
/usr/src/sys/amd64/amd64/exception.S:602