Kernel Panic 12 since 4.8

[C.F. v. Antwerpen]

Tried to debug kernel, but savecore can't save the dump to disk because
while saving it to disk the kernel gives another panic 12.... (I'm a newbee
at debugging the kernel)


----- Original Message ----- 
From: "Ben Pfountz" <netprince at vt.edu>
To: "C.F. v. Antwerpen" <cva_NOSPAM_ at stack.nl>; <freebsd-stable at freebsd.org>
Sent: Thursday, June 12, 2003 5:10 PM
Subject: Re: Kernel Panic 12 since 4.8


> I have been getting the same panic.  I haven't been able to narrow down
the
> source of the panic.  Have you tried the debuging kernel?
> (http://www.onlamp.com/pub/a/bsd/2002/03/21/Big_Scary_Daemons.html) I have
> set it up but unfortunatly my swap partition is smaller than my physical
> memory.  I will fix that when I get home and wait for a panic.
>
> Just curious, are you using IPFW2?
>
> Ben
>
>
> ----- Original Message ----- 
> From: "C.F. v. Antwerpen" <cva_NOSPAM_ at stack.nl>
> To: <freebsd-stable at freebsd.org>
> Sent: Thursday, June 12, 2003 10:44 AM
> Subject: Kernel Panic 12 since 4.8
>
>
> > Hello,
> >
> > I'm having a lot of trouble installing FreeBSD 4.8. First I tried
> installing
> > 4.8-Stable, but I got kernel panic 12. After that I tried installing
> > 4.8-Release, but it still gave me kernel panic 12 (sometimes while
almost
> > done booting, or short after a boot, while trying to cvsup the
> ports-tree).
> > Also tried a few 4.7-Stable snapshots, but also had the same problem. It
> was
> > not until 4.7-Release that it worked without any problem. But when I
tried
> > to upgrade to 4.8-Stable and build the GENERIC and my own kernel, the
> kernel
> > panics returned. Anyone got any ideas?
> >
> > I already checked my memory and harddisks and they seem fine. (and also
> > 4.7-Release hasn't got any problems -> could even cvsup the complete
> sources
> > and build world)
> >
> > Thanks in advance for any help
> >
> >
> > Fatal trap 12: page fault while in kernel mode
> > fault virtual address = 0x45217f3f
> > fault code = supervisor read, page not present
> > instruction pointer = 0x8:0x45217f3f
> > stack pointer = 0x10:0xdb0f9d6c
> > frame pointer = 0x10:0xdb0f9d88
> > 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 = 49 (sh)
> > interrupt mask = none
> > trap number = 12
> > panic: page fault
> >
> >
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>
>
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