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Curious traceback output

 
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Colin Brown



Joined: 11 Oct 2012
Posts: 18
Location: Wellington, NZ

PostPosted: Fri Jul 05, 2013 5:50 am    Post subject: Curious traceback output Reply with quote

I have a program using sockets, generators and linking to external FORTRAN code that has returned the output as below. The "opcode reserved to customer fault" suggests to me that maybe it is in the Python code somewhere?

Found : http://bugs.python.org/file5154/obmalloc.patch

HO3$ python apps_client.py

Restart: Fri Jul 5 03:15:49 2013
Start logger thread...
Start processing thread...
Start client thread aws1_client...
... awaiting error exit

FORBIDDENBYTE, as expected.
*** OUCH
*** OUCH
*** OUCH
*** OUCH
Data at p: ...
%SYSTEM-F-OPCCUS, opcode reserved to customer fault at PC=FFFFFFFF848DBB20, PS=0000001B
%TRACE-F-TRACEBACK, symbolic stack dump follows
%TRACE-I-END, end of TRACE stack dump
HO3$
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jfp



Joined: 12 Jul 2004
Posts: 636

PostPosted: Fri Jul 05, 2013 8:42 am    Post subject: Reply with quote

Hi,

This is typical of a memory corruption. When such corruption is found Python force a crash.

The corruption can be in Python or in the external module...

JF
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