Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 01
kernel trap 12 with interrupts disabled


fault virtual address	= 0x0
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address	= 0x0
fault code		= supervisor read data, page not present
instruction pointer	= 0x20:0xffffffff8106b37d
fault code		= supervisor read data, page not present
instruction pointer	= 0x20:0xffffffff8106b37d
stack pointer	        = 0x0:0xfffffe0016aed680
stack pointer	        = 0x0:0xfffffe001f730150
frame pointer	        = 0x0:0xfffffe001f7301d0
code segment		= base 0x0, limit 0xfffff, type 0x1b
frame pointer	        = 0x0:0xfffffe0016aed700
			= DPL 0, pres 1, long 1, def32 0, gran 1
code segment		= base 0x0, limit 0xfffff, type 0x1b
processor eflags	= resume, IOPL = 0
current process		= 9465 (syz-executor.2)
trap number		= 12
panic: page fault
cpuid = 0
time = 1560154946
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe001f72fdb0
vpanic() at vpanic+0x1e0/frame 0xfffffe001f72fe10
panic() at panic+0x43/frame 0xfffffe001f72fe70
trap_fatal() at trap_fatal+0x4de/frame 0xfffffe001f72fef0
trap_pfault() at trap_pfault+0x9f/frame 0xfffffe001f72ff60
trap() at trap+0x44d/frame 0xfffffe001f730080
calltrap() at calltrap+0x8/frame 0xfffffe001f730080
--- trap 0xc, rip = 0xffffffff8106b37d, rsp = 0xfffffe001f730150, rbp = 0xfffffe001f7301d0 ---
callout_process() at callout_process+0x22d/frame 0xfffffe001f7301d0
handleevents() at handleevents+0x314/frame 0xfffffe001f730230
timercb() at timercb+0x3a4/frame 0xfffffe001f730280
lapic_handle_timer() at lapic_handle_timer+0xdf/frame 0xfffffe001f7302c0
Xtimerint() at Xtimerint+0xae/frame 0xfffffe001f7302c0
--- interrupt, rip = 0xffffffff80ff6228, rsp = 0xfffffe001f730390, rbp = 0xfffffe001f7303a0 ---
trace_cmp() at trace_cmp+0x8/frame 0xfffffe001f7303a0
pmap_enter() at pmap_enter+0x2ae/frame 0xfffffe001f730480
vm_fault_hold() at vm_fault_hold+0x23ac/frame 0xfffffe001f7305f0
vm_fault() at vm_fault+0xad/frame 0xfffffe001f730630
trap_pfault() at trap_pfault+0x399/frame 0xfffffe001f7306a0
trap() at trap+0x44d/frame 0xfffffe001f7307c0
calltrap() at calltrap+0x8/frame 0xfffffe001f7307c0
--- trap 0xc, rip = 0xffffffff816df006, rsp = 0xfffffe001f730890, rbp = 0xfffffe001f730890 ---
copyin_nosmap_erms() at copyin_nosmap_erms+0x156/frame 0xfffffe001f730890
freebsd32_sendmsg() at freebsd32_sendmsg+0x4ca/frame 0xfffffe001f730970
ia32_syscall() at ia32_syscall+0x452/frame 0xfffffe001f730ab0
int0x80_syscall_common() at int0x80_syscall_common+0x9c/frame 0x8142edf
KDB: enter: panic
[ thread pid 9465 tid 100673 ]
Stopped at      kdb_enter+0x6a: movq    $0,kdb_why