https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=198208
--- Comment #10 from Dan <lists....@gmail.com> ---
The kernel paniced and dumped some output to the console. It is now sitting at
the db> prompt. Are there commands you would like me to run?
Fatal trap 9: general protection fault while in kernel mode
cpuid = 13; apic id = 01
instruction pointer = 0x20:0xffffffff80d434b8
stack pointer = 0x28:0xfffffe00002645f0
frame pointer = 0x28:0xfffffe00002646d0
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 = 12 (irq256: bce0)
lock order reversal: (Giant after non-sleepable)
1st 0xffffffff81c577e8 ipf frag rwlock (ipf frag rwlock) @
/usr/src/sys/modules/ipfilter/../../contrib/ipfilter/netinet/ip_frag.c:691
2nd 0xffffffff81840f38 Giant (Giant) @ /usr/src/sys/dev/usb/input/ukbd.c:1984
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe0000264070
kdb_backtrace() at kdb_backtrace+0x39/frame 0xfffffe0000264120
witness_checkorder() at witness_checkorder+0xdc2/frame 0xfffffe00002641b0
__mtx_lock_flags() at __mtx_lock_flags+0xa8/frame 0xfffffe0000264200
ukbd_poll() at ukbd_poll+0x2c/frame 0xfffffe0000264230
kbdmux_poll() at kbdmux_poll+0x5b/frame 0xfffffe0000264250
cngrab() at cngrab+0x35/frame 0xfffffe0000264270
kdb_trap() at kdb_trap+0x11f/frame 0xfffffe00002642c0
trap_fatal() at trap_fatal+0x34c/frame 0xfffffe0000264320
trap() at trap+0x818/frame 0xfffffe0000264530
calltrap() at calltrap+0x8/frame 0xfffffe0000264530
--- trap 0x9, rip = 0xffffffff80d434b8, rsp = 0xfffffe00002645f0, rbp =
0xfffffe00002646d0 ---
bcmp() at bcmp+0x8/frame 0xfffffe00002646d0
ipf_frag_known() at ipf_frag_known+0x51/frame 0xfffffe0000264700
ipf_check() at ipf_check+0x308/frame 0xfffffe0000264880
pfil_run_hooks() at pfil_run_hooks+0x96/frame 0xfffffe0000264910
ip_input() at ip_input+0x32c/frame 0xfffffe0000264960
netisr_dispatch_src() at netisr_dispatch_src+0x86/frame 0xfffffe00002649d0
ether_demux() at ether_demux+0x144/frame 0xfffffe0000264a00
ether_nh_input() at ether_nh_input+0x32a/frame 0xfffffe0000264a30
netisr_dispatch_src() at netisr_dispatch_src+0x86/frame 0xfffffe0000264aa0
bce_intr() at bce_intr+0x6f9/frame 0xfffffe0000264b30
intr_event_execute_handlers() at intr_event_execute_handlers+0x93/frame
0xfffffe0000264b70
ithread_loop() at ithread_loop+0xa6/frame 0xfffffe0000264bb0
fork_exit() at fork_exit+0x84/frame 0xfffffe0000264bf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0000264bf0
--- trap 0, rip = 0, rsp = 0xfffffe0000264cb0, rbp = 0 ---
[ thread pid 12 tid 100072 ]
Stopped at bcmp+0x8: repe cmpsq (%rsi),%es:(%rdi)
db>
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