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SIGSEGV on NSTask subprocess
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matthewmodern
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Join Date: Nov 2000
Location: Manhattan
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Mar 8, 2002, 09:46 PM
 
Here's a bizarre situation: I am running a bundled BSD binary via a NSTask. About 50% of the time, the subprocess bombs out with a SIGSEGV (my main app keeps running). What's interesting is even when I am using identical arguments, it will run with 100% success from the command line.

I'm fairly sure that it's some incompatibility in the code of the BSD binary, but why would it only show up when run as a NSTask? This seems counter-intuitive to me. Therefore my question is, what strange things could the NSTask be doing that would cause the subprocess to occasionally bomb?
     
lindberg
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Join Date: Jan 2001
Location: Virginia, US
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Mar 9, 2002, 12:26 PM
 
Your environment might be different. Anything you do in your .cshrc (or similar) will be available to your command-line launch, but not to the NSTask launch (if you're launching the NSTask from a GUI program anyways).

A task launched from a GUI app also won't have a tty... is the BSD tool reading from stdin at any point?
     
   
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