Changeset 19485 in vbox for trunk

Timestamp:

May 7, 2009 12:56:53 PM (16 years ago)

Author:

vboxsync

Message:

TM: fixed incorrect use of ASMBitTestAndSet in TMR3TimerQueuesDo that could result in the queues only being run on every 2nd call.

File:

• trunk/src/VBox/VMM/TM.cpp (modified) (1 diff)

trunk/src/VBox/VMM/TM.cpp

@@ -1516 +1516 @@
      */
     VM_FF_CLEAR(pVM, VM_FF_TIMER);
-    if (!ASMBitTestAndSet(&pVM->tm.s.fRunningQueues, 0))
+    if (ASMBitTestAndSet(&pVM->tm.s.fRunningQueues, 0))
+    {
+        Assert(pVM->cCPUs > 1);
         return;
+    }
 
     STAM_PROFILE_START(&pVM->tm.s.StatDoQueues, a);