Module Name: src
Committed By: hannken
Date: Fri Jul 24 15:20:37 UTC 2015
Modified Files:
src/sys/arch/x86/x86: pmap_tlb.c
Log Message:
Operation pmap_tlb_processpacket() uses x86_ipi(.., LAPIC_DEST_ALLEXCL, ...)
when cpuset "target" equals "kcpuset_running". During boot, while some CPUs
are not running yet, this will result in more IPI interrupts than expected
and "pmap_tlb_pendcount" related KASSERTs fire.
Compare the cpuset "target" against "kcpuset_attached", as this set represents
the CPUs LAPIC_DEST_ALLEXCL will notify.
Should fix PR port-amd64/47437
To generate a diff of this commit:
cvs rdiff -u -r1.6 -r1.7 src/sys/arch/x86/x86/pmap_tlb.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/x86/x86/pmap_tlb.c
diff -u src/sys/arch/x86/x86/pmap_tlb.c:1.6 src/sys/arch/x86/x86/pmap_tlb.c:1.7
--- src/sys/arch/x86/x86/pmap_tlb.c:1.6 Sat Apr 21 22:22:48 2012
+++ src/sys/arch/x86/x86/pmap_tlb.c Fri Jul 24 15:20:37 2015
@@ -1,4 +1,4 @@
-/* $NetBSD: pmap_tlb.c,v 1.6 2012/04/21 22:22:48 rmind Exp $ */
+/* $NetBSD: pmap_tlb.c,v 1.7 2015/07/24 15:20:37 hannken Exp $ */
/*-
* Copyright (c) 2008-2012 The NetBSD Foundation, Inc.
@@ -40,7 +40,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pmap_tlb.c,v 1.6 2012/04/21 22:22:48 rmind Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap_tlb.c,v 1.7 2015/07/24 15:20:37 hannken Exp $");
#include <sys/param.h>
#include <sys/kernel.h>
@@ -297,7 +297,7 @@ pmap_tlb_processpacket(pmap_tlb_packet_t
{
int err = 0;
- if (!kcpuset_match(target, kcpuset_running)) {
+ if (!kcpuset_match(target, kcpuset_attached)) {
const struct cpu_info * const self = curcpu();
CPU_INFO_ITERATOR cii;
struct cpu_info *lci;
