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Re: Window-server access bug in parallel programming ... ?

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Re: Window-server access bug in parallel programming ... ?

Subject: Re: Window-server access bug in parallel programming ... ?
From: Eric Schlegel <email@hidden>
Date: Sun, 4 Nov 2007 21:47:26 -0800


On Nov 4, 2007, at 6:12 PM, Jay Reynolds Freeman wrote:

What I see is a failure in thread zero of my app -- that's the one
where GUI I/O is done, always deep inside a display or displayIfNeeded
of my main window.  The actual crash is an EXC_BAD_ACCESS with
code KERN_PROTECTION_FAILURE in a function called szone_free, in
libSystem.B.dylib.

This usually indicates heap corruption of some kind, which then causes the malloc code (containing szone_free) to crash later. You should probably try standard approaches for tracking down heap corruption - MallocDebug, libgmalloc, etc.

-eric

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Re: Window-server access bug in parallel programming ... ?
From: Terry Lambert <email@hidden>


References:  
  >Re: fcntl questions (From: Terry Lambert <email@hidden>)
  >Window-server access bug in parallel programming ... ? (From: Jay Reynolds Freeman <email@hidden>)




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