[fireball] 34628: Yuriy Sidorov <[e-mail]> - Call DbgBreakPoint() only for main thread. It fixes debugging of multithreaded apps. - Prevent BSOD if ObReferenceObjectByHandle failed in NtGetContextThread and NtSetContextThread. See issue #3535 for more details.

Author: fireball
Date: Mon Jul 21 04:22:28 2008
New Revision: 34628

URL: http://svn.reactos.org/svn/reactos?rev=34628&view=rev
Log:
Yuriy Sidorov <jura(a)cp-lab.com>
- Call DbgBreakPoint() only for main thread. It fixes debugging of multithreaded apps.
- Prevent BSOD if ObReferenceObjectByHandle failed in NtGetContextThread and
NtSetContextThread.
See issue #3535 for more details.

Modified:
    trunk/reactos/dll/ntdll/ldr/startup.c
    trunk/reactos/ntoskrnl/ps/debug.c

Modified: trunk/reactos/dll/ntdll/ldr/startup.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/ntdll/ldr/startup.c?re…
==============================================================================
--- trunk/reactos/dll/ntdll/ldr/startup.c [iso-8859-1] (original)
+++ trunk/reactos/dll/ntdll/ldr/startup.c [iso-8859-1] Mon Jul 21 04:22:28 2008
@@ -489,10 +489,10 @@
            DPRINT1("Failed to initialize image\n");
            ZwTerminateProcess(NtCurrentProcess(), STATUS_INVALID_IMAGE_FORMAT);
          }
+
+       /* Break into debugger */
+       if (Peb->BeingDebugged) DbgBreakPoint();
      }
-
-   /* Break into debugger */
-   if (Peb->BeingDebugged) DbgBreakPoint();
 
    /* attach the thread */
    RtlEnterCriticalSection(NtCurrentPeb()->LoaderLock);

Modified: trunk/reactos/ntoskrnl/ps/debug.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ps/debug.c?rev=34…
==============================================================================
--- trunk/reactos/ntoskrnl/ps/debug.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/ps/debug.c [iso-8859-1] Mon Jul 21 04:22:28 2008
@@ -342,6 +342,8 @@
                                        (PVOID*)&Thread,
                                        NULL);
 
+    if (!NT_SUCCESS(Status)) return Status;
+
     /* Make sure it's not a system thread */
     if (Thread->SystemThread)
     {
@@ -377,6 +379,8 @@
                                        (PVOID*)&Thread,
                                        NULL);
 
+    if (!NT_SUCCESS(Status)) return Status;
+
     /* Make sure it's not a system thread */
     if (Thread->SystemThread)
     {