cvs commit: src/sys/kern kern_prot.c

Peter Jeremy PeterJeremy at
Tue Sep 16 01:29:16 PDT 2003

On Sun, Sep 14, 2003 at 11:43:32AM -0400, Robert Watson wrote:
>(2) Introduce additional USR signals to be used in lieu of SIGALRM.  This
>    also requires an application change.  Actually, I'm not sure I
>    explicitly raised this in the thread, but it's the obvious direction: 
>    reduce the opportunity for collision between exception signals and IPC
>    signals.

I think this is an excellent idea.

About 4 years ago, we (the FreeBSD project) wore significant pain
whilst the signal space was expanded from 32 to 128 signals.  In that
time, precisely one additional signal has been defined.  There doesn't
seem to be any reason for not supporting another one or two USR signals.


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