/var/crash/vmcore.4
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Unread portion of the kernel message buffer:


Fatal trap 12: page fault while in kernel mode
cpuid = 2; apic id = 02
fault virtual address   = 0x0
fault code              = supervisor write, page not present
instruction pointer     = 0x20:0xc0bf3f04
stack pointer           = 0x28:0xee684990
frame pointer           = 0x28:0xee6849a8
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 10688 (dmidecode)
trap number             = 12
panic: page fault
cpuid = 2
Uptime: 1m27s
Physical memory: 2022 MB
Dumping 102 MB: 87 71 55 39 23 7

#0  doadump () at pcpu.h:231
231     pcpu.h: No such file or directory.
        in pcpu.h
(kgdb) bt
#0  doadump () at pcpu.h:231
#1  0xc0930a03 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:419
#2  0xc0930c67 in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:592
#3  0xc0cd935c in trap_fatal (frame=0xee684950, eva=0) at
/usr/src/sys/i386/i386/trap.c:946
#4  0xc0cd95e0 in trap_pfault (frame=0xee684950, usermode=0, eva=0) at
/usr/src/sys/i386/i386/trap.c:859
#5  0xc0cd9acc in trap (frame=0xee684950) at /usr/src/sys/i386/i386/trap.c:532
#6  0xc0cbff3c in calltrap () at /usr/src/sys/i386/i386/exception.s:166
#7  0xc0bf3f04 in dev_pager_dealloc (object=0xc6dcd110) at
/usr/src/sys/vm/device_pager.c:205
#8  0xc0c16aca in vm_pager_deallocate (object=0xc6dcd110) at
/usr/src/sys/vm/vm_pager.c:253
#9  0xc0c0eaa4 in vm_object_terminate (object=0xc6dcd110) at
/usr/src/sys/vm/vm_object.c:736
#10 0xc0c0f6b1 in vm_object_deallocate (object=0xc6dcd110) at
/usr/src/sys/vm/vm_object.c:616
#11 0xc0bf432d in dev_pager_alloc (handle=0xc5981700, size=65536, prot=1
'\001', foff=983040, cred=0xc5972100) at /usr/src/sys/vm/device_pager.c:193
#12 0xc0c16a97 in vm_pager_allocate (type=Variable "type" is not available.
) at /usr/src/sys/vm/vm_pager.c:238
#13 0xc0c0c05a in vm_mmap_cdev (td=0xc6297b40, objsize=65536, prot=Variable
"prot" is not available.
) at /usr/src/sys/vm/vm_mmap.c:1303
#14 0xc0c0c44f in vm_mmap (map=0xc6b3c828, addr=0xee684c3c, size=65536, prot=1
'\001', maxprot=5 '\005', flags=1, handle_type=2 '\002',
    handle=0xc6316a78, foff=983040) at /usr/src/sys/vm/vm_mmap.c:1189
#15 0xc0c0ce81 in mmap (td=0xc6297b40, uap=0xee684cec) at
/usr/src/sys/vm/vm_mmap.c:391
#16 0xc096bd39 in syscallenter (td=0xc6297b40, sa=0xee684ce4) at
/usr/src/sys/kern/subr_trap.c:315
#17 0xc0cd9634 in syscall (frame=0xee684d28) at
/usr/src/sys/i386/i386/trap.c:1061
#18 0xc0cbffa1 in Xint0x80_syscall () at /usr/src/sys/i386/i386/exception.s:264
#19 0x00000033 in ?? ()
Previous frame inner to this frame (corrupt stack?)
(kgdb) q