Changeset 12591 in vbox for trunk/src/VBox/Runtime/r0drv/linux

Timestamp:

Sep 19, 2008 8:45:10 AM (16 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

36823

Message:

#2247 (public), #3193 (internal): handle jiffies wrap around

File:

• trunk/src/VBox/Runtime/r0drv/linux/timer-r0drv-linux.c (modified) (1 diff)

trunk/src/VBox/Runtime/r0drv/linux/timer-r0drv-linux.c

@@ -398 +398 @@
         {
             pSubTimer->ulNextJiffies += pTimer->cJiffies;
-            while (pSubTimer->ulNextJiffies < jiffies)
+            /* Prevent overflows when the jiffies counter wraps around.
+             * Special thanks to Ken Preslan for helping debugging! */
+            while (jiffies - pSubTimer->ulNextJiffies < 3600*HZ)
             {
                 pSubTimer->ulNextJiffies += pTimer->cJiffies;