panic: Memory modified after free
Steve Kargl
sgk at troutmask.apl.washington.edu
Tue Jan 31 13:38:40 PST 2006
On Tue, Jan 31, 2006 at 04:33:32PM -0500, Kris Kennaway wrote:
> On Tue, Jan 31, 2006 at 01:22:09PM -0800, Steve Kargl wrote:
> > The system is a dual proc Tyan K8S Pro with 12 GB of memory.
> > The kernel is UP. This was recorded by hand. I have the crash dump.
> >
> > Memory modified after free 0xffffff02505e0c00(504) val=deadc0dd @
> > 0xffffff02505e0cd0
> >
> > panic: Most recently used by DEVFS1
>
> Set up memguard to watch this malloc type in order to obtain useful
> debugging.
>
OK, I've read the memguard manpage and it says to add
vm.memguard.desc=<memory_type>
to /boot/loader.conf. Where to I get info for what <memory_type>
actually means?
--
Steve
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