panic: Memory modified after free

[Steve Kargl]

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
> 

Thing are looking positively horrid.  A kernel from a cvsup with
a date=2006.01.25.00.00.00 appears to work fine.  A kernel from with
date=2006.01.27.00.00.00 dies with

dev_relthread() at dev_relthread+0x2e
devfs_close() at devfs_close+0x1b6
VOP_CLOSE_APV() at VOP_CLOSE_APV+0x74
vn_close() at vn_close+0x8d
vn_closefile() at vn_closefile+0x5a
fdrop_locked() at fdrop_locked+0xa1
closef() at closef+0x35f
fdfree() at fdfree+0x513
exit1() at exit1+0x360
sys_exit() 	at sys_exit+0xe

-- 
Steve