panic: page fault 

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Unread portion of the kernel message buffer: 


Fatal trap 12: page fault while in kernel mode 
fault virtual address = 0xc6d053d0 
fault code = supervisor write, page not present 
instruction pointer = 0x20:0xc04fecc0 
stack pointer = 0x28:0xe5318c08 
frame pointer = 0x28:0xe5318c6c 
code segment = base rx0, limit 0xfffff, type 0x1b 
= DPL 0, pres 1, def32 1, gran 1 
processor eflags = interrupt enabled, resume, IOPL = 0 
current process = 0 (ath0 taskq) 
trap number = 12 
panic: page fault 
Uptime: 5h44m39s 
Physical memory: 1014 MB 
Dumping 71 MB: 56 40 24 8 

No symbol "stopped_cpus" in current context. 
No symbol "stoppcbs" in current context. 
Reading symbols from /boot/kernel/nfscl.ko...Reading symbols from /boot/kernel/nfscl.ko.symbols...done. 
done. 
Loaded symbols for /boot/kernel/nfscl.ko 
Reading symbols from /boot/kernel/nfslock.ko...Reading symbols from /boot/kernel/nfslock.ko.symbols...done. 
done. 
Loaded symbols for /boot/kernel/nfslock.ko 
Reading symbols from /boot/kernel/nfssvc.ko...Reading symbols from /boot/kernel/nfssvc.ko.symbols...done. 
done. 
Loaded symbols for /boot/kernel/nfssvc.ko 
Reading symbols from /boot/kernel/krpc.ko...Reading symbols from /boot/kernel/krpc.ko.symbols...done. 
done. 
Loaded symbols for /boot/kernel/krpc.ko 
Reading symbols from /boot/kernel/nfscommon.ko...Reading symbols from /boot/kernel/nfscommon.ko.symbols...done. 
done. 
Loaded symbols for /boot/kernel/nfscommon.ko 
Reading symbols from /boot/kernel/nfsd.ko...Reading symbols from /boot/kernel/nfsd.ko.symbols...done. 
done. 
Loaded symbols for /boot/kernel/nfsd.ko 
Reading symbols from /boot/kernel/nfslockd.ko...Reading symbols from /boot/kernel/nfslockd.ko.symbols...done. 
done. 
Loaded symbols for /boot/kernel/nfslockd.ko 
Reading symbols from /usr/local/modules/fuse.ko...done. 
Loaded symbols for /usr/local/modules/fuse.ko 
Reading symbols from /usr/local/lib/oss/modules/osscore.ko...done. 
Loaded symbols for /usr/local/lib/oss/modules/osscore.ko 
Reading symbols from /usr/local/lib/oss/modules/oss_audigyls.ko...done. 
Loaded symbols for /usr/local/lib/oss/modules/oss_audigyls.ko 
#0 doadump (textdump=1) at pcpu.h:244 
244 pcpu.h: No such file or directory. 
in pcpu.h 
(kgdb) #0 doadump (textdump=1) at pcpu.h:244 
#1 0xc064d4f9 in kern_reboot (howto=260) 
at /usr/src/sys/kern/kern_shutdown.c:448 
#2 0xc064d72f in panic (fmt=Variable "fmt" is not available. 
) at /usr/src/sys/kern/kern_shutdown.c:636 
#3 0xc08a180a in trap_fatal (frame=0xe5318bc8, eva=3335541712) 
at /usr/src/sys/i386/i386/trap.c:1018 
#4 0xc08a1adc in trap_pfault (frame=0xe5318bc8, usermode=0, eva=3335541712) 
at /usr/src/sys/i386/i386/trap.c:931 
#5 0xc08a25a1 in trap (frame=0xe5318bc8) at /usr/src/sys/i386/i386/trap.c:545 
#6 0xc088fbdc in calltrap () at /usr/src/sys/i386/i386/exception.s:169 
#7 0xc04fecc0 in ath_rx_proc (arg=0xc4501000, npending=1) 
at /usr/src/sys/dev/ath/if_ath.c:3683 
#8 0xc0684df5 in taskqueue_run_locked (queue=0xc4556100) 
at /usr/src/sys/kern/subr_taskqueue.c:308 
#9 0xc0685a40 in taskqueue_thread_loop (arg=0xc450132c) 
at /usr/src/sys/kern/subr_taskqueue.c:497 
#10 0xc0623d60 in fork_exit (callout=0xc06859be <taskqueue_thread_loop>, 
arg=0xc450132c, frame=0xe5318d08) at /usr/src/sys/kern/kern_fork.c:992 
#11 0xc088fc54 in fork_trampoline () at /usr/src/sys/i386/i386/exception.s:276 
(kgdb)

Fix: 

Fix exists in HEAD