Module Name: src
Committed By: dyoung
Date: Tue Jan 19 21:54:53 UTC 2010
Modified Files:
src/sys/kern: subr_autoconf.c
Log Message:
A new survey of the code indicates that the very highest interrupt
priority level where the kernel accesses alldevs is IPL_VM, where
some hardware interrupt handlers call config_deactivate(9). Lower
the IPL of alldevs_mtx from IPL_HIGH to IPL_VM, accordingly.
To generate a diff of this commit:
cvs rdiff -u -r1.198 -r1.199 src/sys/kern/subr_autoconf.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/kern/subr_autoconf.c
diff -u src/sys/kern/subr_autoconf.c:1.198 src/sys/kern/subr_autoconf.c:1.199
--- src/sys/kern/subr_autoconf.c:1.198 Tue Jan 19 21:24:36 2010
+++ src/sys/kern/subr_autoconf.c Tue Jan 19 21:54:53 2010
@@ -1,4 +1,4 @@
-/* $NetBSD: subr_autoconf.c,v 1.198 2010/01/19 21:24:36 dyoung Exp $ */
+/* $NetBSD: subr_autoconf.c,v 1.199 2010/01/19 21:54:53 dyoung Exp $ */
/*
* Copyright (c) 1996, 2000 Christopher G. Demetriou
@@ -77,7 +77,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: subr_autoconf.c,v 1.198 2010/01/19 21:24:36 dyoung Exp $");
+__KERNEL_RCSID(0, "$NetBSD: subr_autoconf.c,v 1.199 2010/01/19 21:54:53 dyoung Exp $");
#ifdef _KERNEL_OPT
#include "opt_ddb.h"
@@ -250,7 +250,7 @@
KASSERT(config_initialized == false);
- mutex_init(&alldevs_mtx, MUTEX_DEFAULT, IPL_HIGH);
+ mutex_init(&alldevs_mtx, MUTEX_DEFAULT, IPL_VM);
mutex_init(&config_misc_lock, MUTEX_DEFAULT, IPL_NONE);
cv_init(&config_misc_cv, "cfgmisc");
