BUG: MSDEV Crashes if Same PDB Name Used for Compiler and Linker

• The integrated debugger included with: - Microsoft Visual C++, 32-bit Editions, version 5.0

SYMPTOMS

When the pdb file generated by the compiler has the same name as the pdb file generated by the linker, and the /pdbtype:sept option is set, Developer Studio may crash if you select Debug.StepInto. It may also crash if you set a breakpoint and select Debug.Go.

Following are examples of possible error messages:

   MSDEV caused a stack fault in module MSPDB50.DLL at 015f:1030493b.

   MSDEV.EXE - Application error. The exception unknown software exception
   (0xc00000fd) occurred in the application at location 0x1030837b.

CAUSE

The /pdbtype:sept linker option specifies that the debug information generated by the compiler and the linker be kept in separate pdb files. Since the same pdb file name is used, the linker overwrites the pdb file generated by the compiler without copying the compiler debug info as well. When the debugger attempts to use this file it goes into infinite recursion and eventually the stack overflows and causes Developer Studio to crash.

RESOLUTION

Turn off /pdbtype:sept. To do this, click Project, click Options, click the Link tab, select the Debug category, and deselect the "Separate types" check box.

-or-

Do not use the same pdb file name for linker and compiler output.

STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. We are researching this bug and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION

/pdbtype:sept is the default in a Developer Studio project.

Steps to Reproduce Behavior

1. Create a simple "Hello World" console application project with the name Hello.

2. Click Project, click Settings, and then click the C++ tab.

3. In the Project Options dialog box look for /Fd option and change it as follows:

          Before                 After
         /Fd"Debug/"      to    /Fd"Debug/Hello.pdb"
   
   

4. Build the project.

5. Click Debug, click Stepinto, and then MSDEV will crash.

6. Click Project, click Settings, and then click the link tab.

7. Select the "Debug" category, and deselect the Separate Types check box.

8. Rebuild all and try to debug. A crash will not occur.