misc/123066: kernel trap with ipsec

[Kris Kennaway]

On Fri, Apr 25, 2008 at 07:20:03AM +0000, misha saf wrote:
> The following reply was made to PR kern/123066; it has been noted by GNATS.
> 
> From: misha saf <msaf1980 at rambler.ru>
> To: Kris Kennaway <kris at FreeBSD.org>
> Cc: <freebsd-gnats-submit at FreeBSD.org>
> Subject: Re: misc/123066: kernel trap with ipsec
> Date: Fri, 25 Apr 2008 10:59:33 +0400
> 
>  * Kris Kennaway <kris at FreeBSD.org> [Fri, 25 Apr 2008 05:46:54 +0000]:
>  > On Fri, Apr 25, 2008 at 04:13:40AM +0000, Mihail wrote:
>  >
>  > > (kgdb) backtrace
>  > > #0  doadump () at pcpu.h:195
>  > > #1  0xc075df57 in boot (howto=260) at
>  > /usr/src/sys/kern/kern_shutdown.c:409
>  > > #2  0xc075e219 in panic (fmt=Variable "fmt" is not available.
>  > > ) at /usr/src/sys/kern/kern_shutdown.c:563
>  > > #3  0xc0a9766c in trap_fatal (frame=0xc884e934, eva=3621180904)
>  > >     at /usr/src/sys/i386/i386/trap.c:899
>  > > #4  0xc0a978f0 in trap_pfault (frame=0xc884e934, usermode=0,
>  > eva=3621180904)
>  > >     at /usr/src/sys/i386/i386/trap.c:812
>  > > #5  0xc0a9829c in trap (frame=0xc884e934) at
>  > /usr/src/sys/i386/i386/trap.c:490
>  > > #6  0xc0a7e21b in calltrap () at
>  > /usr/src/sys/i386/i386/exception.s:139
>  > > #7  0xc0a952f6 in generic_bcopy () at
>  > /usr/src/sys/i386/i386/support.s:498
>  > > Previous frame inner to this frame (corrupt stack?)
>  >
>  > Unfortunately we need the rest of the stack.  Can you either try to
>  > reproduce with DDB in the kernel and obtain a stack trace from there,
>  > or if this is not possible then try recompiling the kernel with -O
>  > instead of -O2 which tends to produce better stack traces.
>  >
>  > Kris

>  That's all needed info ?

No, stack frames 8 and beyond contained the important parts of the
stack trace, but were not displayed by gdb.  What we need is what I
explained above.

Kris

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