PERFORCE change 136145 for review
Kip Macy
kmacy at FreeBSD.org
Mon Feb 25 04:39:38 UTC 2008
http://perforce.freebsd.org/chv.cgi?CH=136145
Change 136145 by kmacy at pandemonium:kmacy:xen31 on 2008/02/25 04:38:42
make sure any pending updates have happened before we context switch
Affected files ...
.. //depot/projects/xen31/sys/kern/kern_switch.c#3 edit
Differences ...
==== //depot/projects/xen31/sys/kern/kern_switch.c#3 (text+ko) ====
@@ -179,6 +179,9 @@
td->td_critnest = 0;
if (td->td_owepreempt) {
td->td_critnest = 1;
+#ifdef XEN
+ PT_UPDATES_FLUSH();
+#endif
thread_lock(td);
td->td_critnest--;
SCHED_STAT_INC(switch_owepreempt);
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