bugGNU Octave - Bugs: bug #49109, Octave child process started by...

 
 

bug #49109: Octave child process started by fork is killed by signal 11 (SIGSEGV)

Submitted by:  None
Submitted on:  Sat 17 Sep 2016 12:36:54 PM UTC  
 
Category: InterpreterSeverity: 3 - Normal
Priority: 5 - NormalItem Group: Segfault, Bus Error, etc.
Status: NoneAssigned to: None
Originator Name: Cygwin userOriginator Email: -unavailable-
Open/Closed: OpenRelease: 4.0.1
Operating System: Microsoft Windows

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Sat 17 Sep 2016 12:36:54 PM UTC, original submission:

I'm using octave's fork function in order to parallelize tasks. However this is not working any longer in octave-4.0.1 on Cygwin64.
I have attached a very simple example (fork_test.m) which can be used to reproduce the problem.

$ octave --no-gui -q -f

>> fork_test

process 6504 started
process 6504 killed by signal 11
...

$ octave-cli -q -f
octave:1> fork_test
process 3964 started

process 3964 returned with code 0
...

That example works with octave-cli but fails with octave-gui. It should be mentioned, that only the child process receives the signal. The parent process never crashes. In the present example octave-gui crashes after the output has been saved and so one gets the expected results. But this is not true in general.

Anonymous

 

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file #38531:  fork_test.m added by None (701B - application/octet-stream)

 

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Follows 1 latest change.

Date Changed By Updated Field Previous Value => Replaced By
Sat 17 Sep 2016 12:36:54 PM UTCNoneAttached File-=>Added fork_test.m, #38531

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