panic: Memory modified after free

[Pawel Jakub Dawidek]

On Tue, Jan 31, 2006 at 05:47:21PM -0500, Kris Kennaway wrote:
+> On Tue, Jan 31, 2006 at 11:11:20PM +0100, Pawel Jakub Dawidek wrote:
+> > On Tue, Jan 31, 2006 at 10:50:21PM +0100, Christian Brueffer 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
+> > +> > 
+> > +> 
+> > +> For the record, I got this as well today.  Here it was on my notebook
+> > +> at system shutdown.
+> > 
+> > Cool, so you have a chance to try memguard(9) and verify my patch to
+> > manual page:)
+> > 
+> > --- memguard.9  30 Dec 2005 12:28:19 -0000	1.2
+> > +++ memguard.9  31 Jan 2006 22:06:04 -0000
+> > @@ -56,6 +56,9 @@ vm.memguard.desc=<memory_type>
+> >  .Ed
+> >  .Pp
+> >  Where memory_type is a short description of memory type to monitor.
+> > +The short description of memory type is the second argument to
+> > +.Xr MALLOC_DECLARE 9 ,
+> > +so one has to find it in the kernel source.
+> 
+> ITYM MALLOC_DEFINE?

Yes, DEFINE.

-- 
Pawel Jakub Dawidek                       http://www.wheel.pl
pjd at FreeBSD.org                           http://www.FreeBSD.org
FreeBSD committer                         Am I Evil? Yes, I Am!
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