On Mon, Jun 28, 2004 at 08:26:35PM +0000, Tor Egge wrote:
> tegge 2004-06-28 20:26:35 UTC
>
> FreeBSD src repository
>
> Modified files:
> sys/vm vm_object.c
> Log:
> Initialize result->backing_object_offset before linking result onto the list of
> vm objects shadowing source in vm_object_shadow(). This closes a race where
> vm_object_collapse() could be called with a partially uninitialized object
> argument causing symptoms that looked like hardware problems, e.g. signal 6,
> 10, 11 or a /bin/sh busy-waiting for a nonexistant child process.
>
> Revision Changes Path
> 1.325 +5 -5 src/sys/vm/vm_object.c
Sweet..this sounds like the bug that was exposed by turning ithread
preemption back on. I'll update and see if it's gone.
Kris
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