Clear PCATCH for procs that have P_WEXIT set.

Exiting procs will not return to userland and can not deliver signals so
it is better to not even try.
OK mpi@

diff --git a/sys/kern/kern_synch.c b/sys/kern/kern_synch.c
index f6d04bc..e613b67 100644 (file)
--- a/sys/kern/kern_synch.c
+++ b/sys/kern/kern_synch.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: kern_synch.c,v 1.201 2024/03/30 13:33:20 mpi Exp $    */
+/*     $OpenBSD: kern_synch.c,v 1.202 2024/04/18 08:59:38 claudio Exp $        */
 /*     $NetBSD: kern_synch.c,v 1.37 1996/04/22 01:38:37 christos Exp $ */
 
 /*
@@ -342,6 +342,9 @@ sleep_setup(const volatile void *ident, int prio, const char *wmesg)
        if (p->p_stat != SONPROC)
                panic("tsleep: not SONPROC");
 #endif
+       /* exiting processes are not allowed to catch signals */
+       if (p->p_flag & P_WEXIT)
+               CLR(prio, PCATCH);
 
        SCHED_LOCK(s);