Changeset 4941 in vbox for trunk/src/VBox/HostDrivers/Support/win

Timestamp:

Sep 21, 2007 7:29:08 AM (17 years ago)

Author:

vboxsync

Message:

Backed out 24691

File:

• trunk/src/VBox/HostDrivers/Support/win/SUPDrv-win.cpp (modified) (2 diffs)

trunk/src/VBox/HostDrivers/Support/win/SUPDrv-win.cpp

@@ -280 +280 @@
         ||  ulCmd == SUP_IOCTL_FAST_DO_NOP)
     {
-        KIRQL oldIrql;
-
-        /* Raise the IRQL to DISPATCH_LEVEl to prevent Windows from rescheduling us to another CPU/core. */
-        Assert(KeGetCurrentIrql() <= DISPATCH_LEVEL);
-        KeRaiseIrql(DISPATCH_LEVEL, &oldIrql);
-
         int rc = supdrvIOCtlFast(ulCmd, pDevExt, pSession);
-
-        KeLowerIrql(oldIrql);
 
         /* Complete the I/O request. */
@@ -617 +609 @@
              * If someone knows a better way to get this done, please let bird know.
              */
+            /** @todo our IRQL is too high for KeQueryActiveProcessors!! */
             unsigned iSelf = KeGetCurrentProcessorNumber();
             KAFFINITY Mask = KeQueryActiveProcessors();