Fatal trap 12: page fault while in kernel mode

[Christian Walther]

On 19/04/07, Kai <kai at xs4all.nl> wrote:
> On Wed, Apr 11, 2007 at 12:53:32PM +0200, Kai wrote:
> >
> > Hello all,
> >
> > We're running into regular panics on our webserver after upgrading
> > from 4.x to 6.2-stable:
>
> Hi Again,
>
> The panics keep happening, so I'm trying alternate kernel setups. This is a
> trace of a panic on a default SMP kernel with debugging symbols.
>
> I'm At a loss on how to progress at this point, perhaps someone can help me
> please?
[snip]
>
> Fatal trap 12: page fault while in kernel mode
> cpuid = 0; apic id = 00
> fault virtual address   = 0x34
> fault code              = supervisor read, page not present
> instruction pointer     = 0x20:0xc06bdefa
> stack pointer           = 0x28:0xeb9cf938
> frame pointer           = 0x28:0xeb9cf944
> 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         = 13577 (perl5.8.8)
> trap number             = 12
> panic: page fault

Is this perl derived from ports? And if so, did you rebuild it after
you upgraded to 6.2?
Or is maybe FreeBSD 4.x binary compatibility missing from your kernel?