kern/127971: 7.0 RELEASE PANIC

Shakul M Hameed smohideen at
Thu Oct 9 09:50:01 UTC 2008

>Number:         127971
>Category:       kern
>Synopsis:       7.0 RELEASE PANIC
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Oct 09 09:50:01 UTC 2008
>Originator:     Shakul M Hameed
>Release:        FreeBSD freebsdbox 7.0-RELEASE FreeBSD 7.0-RELEASE
FreeBSD freebsdbox 7.0-RELEASE FreeBSD 7.0-RELEASE #0: Sun Feb 24 19:59:52 UTC 2008     root at  i386


This problem is not reproducible.

Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address   = 0x2008
fault code              = supervisor write, page not present
instruction pointer     = 0x20:0xc0a44d43
stack pointer           = 0x28:0xccc53bc4
frame pointer           = 0x28:0xccc53c04
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         = 28098 (cc1plus)
trap number             = 12
panic: page fault
cpuid = 0
Uptime: 14m28s
Physical memory: 235 MB
Dumping 55 MB: 40 24 8

#0  doadump () at pcpu.h:195
195     pcpu.h: No such file or directory.
        in pcpu.h
(kgdb) bt
#0  doadump () at pcpu.h:195
#1  0xc0754457 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:409
#2  0xc0754719 in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:563
#3  0xc0a4905c in trap_fatal (frame=0xccc53b84, eva=8200)
    at /usr/src/sys/i386/i386/trap.c:899
#4  0xc0a492e0 in trap_pfault (frame=0xccc53b84, usermode=0, eva=8200)
    at /usr/src/sys/i386/i386/trap.c:812
#5  0xc0a49c8c in trap (frame=0xccc53b84) at /usr/src/sys/i386/i386/trap.c:490
#6  0xc0a2fc0b in calltrap () at /usr/src/sys/i386/i386/exception.s:139
#7  0xc0a44d43 in pmap_remove_pages (pmap=0xc20b625c)
    at /usr/src/sys/i386/i386/pmap.c:3124
#8  0xc097585c in vmspace_exit (td=0xc230aa50) at /usr/src/sys/vm/vm_map.c:404
#9  0xc0732f1a in exit1 (td=0xc230aa50, rv=0) at /usr/src/sys/kern/kern_exit.c:294
#10 0xc073426d in sys_exit (td=Could not find the frame base for "sys_exit".
) at /usr/src/sys/kern/kern_exit.c:98
#11 0xc0a49635 in syscall (frame=0xccc53d38) at /usr/src/sys/i386/i386/trap.c:1035
#12 0xc0a2fc70 in Xint0x80_syscall () at /usr/src/sys/i386/i386/exception.s:196
#13 0x00000033 in ?? ()
Previous frame inner to this frame (corrupt stack?)

NOT REPRODUCIBLE. I was running 4-5 parallel session of /usr/port compilation when this panic happened.
Not yet


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