Author: avg
Date: Sun Dec 4 21:27:41 2011
New Revision: 228265
URL: http://svn.freebsd.org/changeset/base/228265
Log:
critical_exit: ignore td_owepreempt if kdb_active is set
calling mi_switch in such a context results in a recursion via
kdb_switch
Suggested by: jhb
Reviewed by: jhb
MFC after: 5 weeks
Modified:
head/sys/kern/kern_switch.c
Modified: head/sys/kern/kern_switch.c
==============================================================================
--- head/sys/kern/kern_switch.c Sun Dec 4 21:24:01 2011 (r228264)
+++ head/sys/kern/kern_switch.c Sun Dec 4 21:27:41 2011 (r228265)
@@ -200,7 +200,7 @@ critical_exit(void)
if (td->td_critnest == 1) {
td->td_critnest = 0;
- if (td->td_owepreempt) {
+ if (td->td_owepreempt && !kdb_active) {
td->td_critnest = 1;
thread_lock(td);
td->td_critnest--;
_______________________________________________
svn-src-head@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/svn-src-head
To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
