On Thu, 12 Mar 1998 16:40:28 +0100 (MET) 
 Jaromir Dolecek <dolecek@ics.muni.cz> wrote:

 > On reboot, I often get a page fault trap. Every time this happens,
 > CD (ATAPI) is mounted.
 > 
 > message from ddb:
 > 
 > vm_fault() -> 1

...you left out some info here... can you provide us with the complete
vm_fault printf?  It includes the faulting address, which is important to
determine if it was a null pointer or if it was a pointer access through
freed memory, etc.

 > kernel: page fault trap, code=0
 > Stopped at _vnode_pager_umount+0x1d: movl 0x44(%eax), %ebx
 > db> t
 > _vnode_pager_umount() at _vnode_pager_umount+0x1d
 > _vfs_shutdown() at _vfs_shutdown+0xe6
 > _cpu_reboot() at _cpu_reboot + 0x3b
 > _sys_reboot() at _sys_reboot+0x5a
 > _syscall() at _syscall+0x214
 > --- syscall (number 208) ---
 > 
 > Looks this familiar to someone ? I can provide more information any time,
 > if needed.

I have not observed this at all, but then again, I am running UVM+PMAP_NEW
on all of my x86 boxes.

Jason R. Thorpe                                       thorpej@nas.nasa.gov
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