cvs commit: src/sys/vm vm_object.c

[Kris Kennaway]

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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