This patch is mortly art's work and was done *a year* ago. Art wants to thank

everyone for the prompt review and ok of this work ;-)  Yeah, that includes me
too, or maybe especially me.  I am sorry.

Change the sched_lock to a mutex. This fixes, among other things, the infamous
"telnet localhost &" problem.  The real bug in that case was that the sched_lock
which is by design a non-recursive lock, was recursively acquired, and not
enough releases made us hold the lock in the idle loop, blocking scheduling
on the other processors.  Some of the other processors would hold the biglock though,
which made it impossible for cpu 0 to enter the kernel...  A nice deadlock.
Let me just say debugging this for days just to realize that it was all fixed
in an old diff noone ever ok'd was somewhat of an anti-climax.

This diff also changes splsched to be correct for all our architectures.

1 files changed, 2 insertions, 2 deletions

diff --git a/sys/arch/hppa64/include/cpu.h b/sys/arch/hppa64/include/cpu.h
index 8de00e76eb8..e4054861dab 100644
--- a/sys/arch/hppa64/include/cpu.h
+++ b/sys/arch/hppa64/include/cpu.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: cpu.h,v 1.2 2005/04/19 15:29:48 mickey Exp $	*/
+/*	$OpenBSD: cpu.h,v 1.3 2005/05/25 23:17:47 niklas Exp $	*/
 
 /*
  * Copyright (c) 2005 Michael Shalayeff
@@ -83,8 +83,8 @@
 #define	IPL_VM		7
 #define	IPL_AUDIO	8
 #define	IPL_CLOCK	9
-#define	IPL_SCHED	9
 #define	IPL_STATCLOCK	10
+#define	IPL_SCHED	IPL_STATCLOCK
 #define	IPL_HIGH	11
 
 #define	NIPL		12