Date: Mon, 28 Jan 2008 18:52:44 GMT From: Stefan Krüger <stadtkind2@gmx.de> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/120092: ipnat -s panic's FreeBSD 7.0-PRERELEASE Message-ID: <200801281852.m0SIqiBk003019@www.freebsd.org> Resent-Message-ID: <200801281900.m0SJ02qk057749@freefall.freebsd.org>
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>Number: 120092
>Category: kern
>Synopsis: ipnat -s panic's FreeBSD 7.0-PRERELEASE
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon Jan 28 19:00:02 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator: Stefan Krüger
>Release: 7.0-PRERELEASE from 27.01.2008
>Organization:
None
>Environment:
FreeBSD localhost 7.0-PRERELEASE FreeBSD 7.0-PRERELEASE #15: Sun Jan 27 12:53:09 CET 2008 root@localhost:/usr/obj/usr/src/sys/ULE i386
>Description:
here's the backtrace:
$ kgdb -q kernel.debug vmcore.3
Unread portion of the kernel message buffer:
Kernel page fault with the following non-sleepable locks held:
shared rw ipf filter load/unload mutex r = 0 (0xc094e8a0) locked @ /usr/src/sys/modules/ipfilter/../../contrib/ipfilter/netinet/ip_fil_freebsd.c:350
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address = 0x28202000
fault code = supervisor write, page not present
instruction pointer = 0x20:0xc073b706
stack pointer = 0x28:0xe6636de8
frame pointer = 0x28:0xe6637bb8
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 = 2990 (ipnat)
trap number = 12
panic: page fault
cpuid = 0
Uptime: 6h31m26s
Physical memory: 1015 MB
Dumping 156 MB: 141 125 109 93 77 61 45 29 13
#0 doadump () at pcpu.h:195
195 __asm __volatile("movl %%fs:0,%0" : "=r" (td));
(kgdb) bt
#0 doadump () at pcpu.h:195
#1 0xc052b3ee in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:409
#2 0xc052b67e in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:563
#3 0xc073d54c in trap_fatal (frame=0xe6636da8, eva=673193984)
at /usr/src/sys/i386/i386/trap.c:899
#4 0xc073de6d in trap (frame=0xe6636da8) at /usr/src/sys/i386/i386/trap.c:280
#5 0xc072526b in calltrap () at /usr/src/sys/i386/i386/exception.s:139
#6 0xc073b706 in generic_copyout () at /usr/src/sys/i386/i386/support.s:772
Previous frame inner to this frame (corrupt stack?)
(kgdb) list *0xc073b706
0xc073b706 is at /usr/src/sys/i386/i386/support.s:773.
768 ALIGN_TEXT
769 slow_copyout:
770 #endif
771 shrl $2,%ecx
772 cld
773 rep
774 movsl
775 movb %bl,%cl
776 andb $3,%cl
777 rep
(kgdb)
>How-To-Repeat:
run 'ipnat -s' as root
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
help
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