I got the following panic after signing out of my X session. Previous to this
I was trying to kill off a program that was running through wine. This machine
is running 7.2-STABLE and I still have core file if any further debugging info
is needed.
Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 01
fault virtual address = 0x10
fault code = supervisor write, page not present
instruction pointer = 0x20:0xc04efdcb
stack pointer = 0x28:0xe8cdeb64
frame pointer = 0x28:0xe8cdeb84
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 = 7453 (wine)
trap number = 12
panic: page fault
cpuid = 1
Uptime: 1d3h58m32s
Physical memory: 1005 MB
Dumping 192 MB: (CTRL-C to abort) (CTRL-C to abort) (CTRL-C to abort) 177
(CTRL-C to abort) 161 (CTRL-C to abort) 145 129 113 97 81 65 (CTRL-C to
abort) 49 33 17 1
#1 0xc051afe8 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:418
#2 0xc051b2c5 in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:574
#3 0xc067bf54 in trap_fatal (frame=0xe8cdeb24, eva=16)
at /usr/src/sys/i386/i386/trap.c:938
#4 0xc067c1a4 in trap_pfault (frame=0xe8cdeb24, usermode=0, eva=16)
at /usr/src/sys/i386/i386/trap.c:851
#5 0xc067cb06 in trap (frame=0xe8cdeb24) at /usr/src/sys/i386/i386/trap.c:529
#6 0xc06631db in calltrap () at /usr/src/sys/i386/i386/exception.s:166
#7 0xc04efdcb in knlist_cleardel (knl=0xc4f7ba70, td=0x0, islocked=1,
killkn=0) at atomic.h:149
#8 0xc055581b in pipeclose (cpipe=0xc4f7ba00)
at /usr/src/sys/kern/sys_pipe.c:1510
#9 0xc0555921 in pipe_close (fp=0xc4e1e214, td=0xc52aa900)
at /usr/src/sys/kern/sys_pipe.c:1427
#10 0xc04e4bc1 in fdrop (fp=0xc4e1e214, td=0xc52aa900) at file.h:300
#11 0xc04e60c7 in closef (fp=0xc4e1e214, td=0xc52aa900)
at /usr/src/sys/kern/kern_descrip.c:2072
#12 0xc04e659c in kern_close (td=0xc52aa900, fd=27)
at /usr/src/sys/kern/kern_descrip.c:1125
#13 0xc04e6669 in close (td=0xc52aa900, uap=0xe8cdecfc)
at /usr/src/sys/kern/kern_descrip.c:1077
#14 0xc067c4e5 in syscall (frame=0xe8cded38)
#15 0xc0663240 in Xint0x80_syscall () at /usr/src/sys/i386/i386/exception.s:262
#16 0x00000033 in ?? ()
Previous frame inner to this frame (corrupt stack?)
(kgdb) l *0xc04efdcb
0xc04efdcb is in knlist_cleardel (atomic.h:149).
144 static __inline int
145 atomic_cmpset_int(volatile u_int *dst, u_int exp, u_int src)
146 {
147 u_char res;
148
149 __asm __volatile(
150 " " MPLOCKED " "
151 " cmpxchgl %2,%1 ; "
152 " sete %0 ; "
153 "1: "
(kgdb)
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