Module Name: src
Committed By: snj
Date: Fri Oct 16 06:42:53 UTC 2009
Modified Files:
src/sys/arch/alpha/alpha [netbsd-5]: pmap.c
Log Message:
Pull up following revision(s) (requested by mhitch in ticket #1073):
sys/arch/alpha/alpha/pmap.c: revision 1.243
IPI interrupts occur above IPL_VM, so using IPL_VM in for the tlb shootdown
queue mutex doesn't work very well. I get various deadlocks and corrupted
queue entries. Change to IPL_SCHED [IPL_CLOCK] to block IPI interrupts
while the cpu is mucking with the shootdown queue.
To generate a diff of this commit:
cvs rdiff -u -r1.236.10.2 -r1.236.10.3 src/sys/arch/alpha/alpha/pmap.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/alpha/alpha/pmap.c
diff -u src/sys/arch/alpha/alpha/pmap.c:1.236.10.2 src/sys/arch/alpha/alpha/pmap.c:1.236.10.3
--- src/sys/arch/alpha/alpha/pmap.c:1.236.10.2 Wed Sep 16 04:41:13 2009
+++ src/sys/arch/alpha/alpha/pmap.c Fri Oct 16 06:42:53 2009
@@ -1,4 +1,4 @@
-/* $NetBSD: pmap.c,v 1.236.10.2 2009/09/16 04:41:13 snj Exp $ */
+/* $NetBSD: pmap.c,v 1.236.10.3 2009/10/16 06:42:53 snj Exp $ */
/*-
* Copyright (c) 1998, 1999, 2000, 2001, 2007, 2008 The NetBSD Foundation, Inc.
@@ -140,7 +140,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
-__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.236.10.2 2009/09/16 04:41:13 snj Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.236.10.3 2009/10/16 06:42:53 snj Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -963,7 +963,7 @@
for (i = 0; i < ALPHA_MAXPROCS; i++) {
TAILQ_INIT(&pmap_tlb_shootdown_q[i].pq_head);
mutex_init(&pmap_tlb_shootdown_q[i].pq_lock, MUTEX_DEFAULT,
- IPL_VM);
+ IPL_SCHED);
}
#endif
