[PyQt] crash: *** glibc detected *** python: double free or corruption (fasttop): 0x0a802370 ***

Tom Kuiper kuiper at jpl.nasa.gov
Fri Nov 27 22:54:26 GMT 2009


A pyQt4 application using QThread (I suspect this is relevant) crashed 
unpredictably with the above error message.  Searching the web I found 
this type of error in many diverse applications, not just Python or 
pyqt4.  I could not find a clue to resolving this problem.  I'm somewhat 
reluctant to post here the 120 lines of diagnostics so here are some 
parts that I suspect are relevant:

*** glibc detected *** python: double free or corruption (fasttop): 
0x0a802370 ***
======= Backtrace: =========
======= Memory map: ========
08048000-08143000 r-xp 00000000 08:01 1213624    /usr/bin/python2.5
08143000-08168000 rw-p 000fa000 08:01 1213624    /usr/bin/python2.5
08168000-0816e000 rw-p 08168000 00:00 0
094ce000-0ad3f000 rw-p 094ce000 00:00 0          [heap]
b2c33000-b2c35000 r--s 00000000 08:01 8522271    
b2c35000-b2c38000 r--s 00000000 08:01 8522270    

I'm running an up-to-date Debian lenny with a 2.6.26-1-686 i686 
GNU/Linux kernel.

For any insights, many thanks.


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