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digitalmars.D.learn - Silent crash in Windows -- what can cause it?

reply Don Clugston <dac nospam.com.au> writes:
I have a multi-threaded Windows app. Occasionally, it crashes silently: the GUI 
abruptly disappears, no "blue screen of death" or equivalent. Some of the
worker 
threads (created in DLLs) continue to run, and the DLLs remain loaded.
This is not a D issue in this case (it's a C++ app), yet I've seen this 
behaviour in D in the past.
I know that uncaught Windows Structured Exceptions can cause this type of
crash; 
calling exit(1) does the same thing.
Is there anything else which can do this?

I've been fighting this bug for days; I've never had so much trouble with a bug 
before. Any tips would be greatly appreciated.
Jan 11 2008
parent Bradley Smith <digitalmars-com baysmith.com> writes:
Don Clugston wrote:
 I have a multi-threaded Windows app. Occasionally, it crashes silently: 
 the GUI abruptly disappears, no "blue screen of death" or equivalent. 
 Some of the worker threads (created in DLLs) continue to run, and the 
 DLLs remain loaded.
 This is not a D issue in this case (it's a C++ app), yet I've seen this 
 behaviour in D in the past.
 I know that uncaught Windows Structured Exceptions can cause this type 
 of crash; calling exit(1) does the same thing.
 Is there anything else which can do this?
 
 I've been fighting this bug for days; I've never had so much trouble 
 with a bug before. Any tips would be greatly appreciated.

I've seen silent crashes in Windows that were stack overflow errors caused by infinite looping of a series of function calls. However, it was not a multi-threaded app, and it was easy to see the problem when run through the debugger.
Jan 11 2008