- Properly set and check the image notification flag for the process in DbgkCreateThread. Patch by hto.

See issue #1879 for more details.

svn path=/trunk/; revision=25003

reactos/ntoskrnl/dbgk/dbgkutil.c

@@ -104,10 +104,12 @@ DbgkCreateThread(PVOID StartAddress)
     PTEB Teb;
     PAGED_CODE();
 
-    /* Check if this process has already been notified */
-    ProcessFlags = InterlockedAnd((PLONG)&Process->Flags,
-                                  PSF_CREATE_REPORTED_BIT |
-                                  PSF_IMAGE_NOTIFY_DONE_BIT);
+    /* Try ORing in the create reported and image notify flags */
+    ProcessFlags = InterlockedOr((PLONG)&Process->Flags,
+                                 PSF_CREATE_REPORTED_BIT |
+                                 PSF_IMAGE_NOTIFY_DONE_BIT);
+
+    /* Check if we were the first to set them or if another thread raced us */
     if (!(ProcessFlags & PSF_IMAGE_NOTIFY_DONE_BIT) && (PsImageNotifyEnabled))
     {
         /* It hasn't.. set up the image info for the process */

reactos/ntoskrnl/tests/TestDebug.c

@@ -49,7 +49,7 @@ Main(VOID)
                            &ClientId);
     Status = DbgUiDebugActiveProcess(hProcess);
 #else
-    Error = DebugActiveProcess(2648);
+    Error = DebugActiveProcess(168);
 #endif
 
 #if NATIVE