Application exception happening only inside VMWare - no useful ELinformation

Hello,

EurekaLog doesn't give me useful information for a case, where the application generates an exception only if running in a VMWare session.

EurekaLog gives me something like:

   2.5 Type          : EAccessViolation
   2.6 Message       : Access violation at address 00000000. Read of  address 00000000.
   2.7 ID            : 3B2F
   2.8 Count         : 1
   2.9 Status        : New

With a call stack information pointing to the product file:

   Call Stack Information:
   -----------------------------------------------------------------
   |Address |Module      |Unit    |Class|Procedure/Method   |Line  |
   -----------------------------------------------------------------
   |Running Thread: ID=3972; Priority=0; Class=; [Main]            |
   |---------------------------------------------------------------| 
   |00C390D8|xxx2.exe    |xxx2.dpr|     |                   |90[15]|
   |766A1172|kernel32.dll|        |     |BaseThreadInitThunk|      |
   -----------------------------------------------------------------
   
   Registers: 
   -----------------------------
   EAX: 00000000   EDI: 0012EDC8
   EBX: 00000000   ESI: 0000001C
   ECX: 072E000F   ESP: 0012B288
   EDX: 0012B28C   EIP: 00000000
   
   Stack:
   -----------------------------
   
   Memory Dump:
   ---------------------------------------------------------------   

Any ideas on what's happening here?


Thanks a lot!



Regards,
Thomas

[Alex]

Hi,

The error message and CPU state says that you called function via nil pointer.

For example:

// function doesn't exists, GetProcAddress returns nil
P := GetProcAddress(Lib, 'SomeFunction'); 
// you didn't test for assigned and call function immediately
P(1, 'test');

This is not the only case of code, of course. There can be other cases, but the idea is the same.

Hi Alex,

The error message and CPU state says that you called function via nil pointer. For example: Code: --------- // function doesn't exists, GetProcAddress returns nil P := GetProcAddress(Lib, 'SomeFunction'); // you didn't test for assigned and call function immediately P(1, 'test'); --------- This is not the only case of code, of course. There can be other cases, but the idea is the same.

Thanks! The thing is, without getting a meaningful stack trace, I don't know how to track this issue down.


Regards,
Thomas