Patrick R. McManus wrote:

>Alan,
>
>mea culpa on this one - my problem appears to be with the only other
>patch I was running - I believed I was also running it on ac3, but it
>now appears that I was thinking of another box.
>
>The other patch was corey minyard's "allow signal handler to not call
>handler" patch that I was interested in seeing its impact on a
>userspace project of mine. It kills gdm (at least with ac4.. maybe
>others?)
>
>thanks,
>-Pat
>
Yet, it does seem to kill gdm. xdm and kdm seem to work fine.

Ok, I see the problem. I've fixed it, booted and tried gdm, and it works 
fine. The SA_ONESHOT was checked in the wrong place, the handler is set 
in the frame_setup routines, so I have to check and set the handler due 
to the SA_ONESHOT flag after this. The patch is attached.

-Corey