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Comment Type & Canned Response: None None > Multiple Canned Responses Fixed in development Crash with no stack trace Already fixed in newer version Fixed in stable Bad description Bad description and crash Bad stack trace Obsolete version Duplicate and not fixed Duplicate and needs more info Duplicate and fixed Need info and old
It has to do with parallelization. I can use either OMP_THREAD_LIMIT=1 or OMP_NUM_THREADS=1 as a workaround on my system. I don't know how to trace down the error further.
Since on the very same system there is no error with Octave 4.0.3, I suspect that the root cause is located somewhere in Octave core and has been fixed already.
Please close this bug report.
Thank you! Might be something wrong with my system then. I will investigate further in that direction and come back with more information.
I do not get a segfault with Octave 3.8.2 given the procedure shown. I get instead "PASSES 10 out of 10 tests".
I did a clean build with revision bea91f0188a3, and used "make run MKOCTFILE=mkoctfile-3.8.2 OCTAVE=octave-3.8.2".
Octave 3.8.2 crashes during BISTs of the new @infsup/qr method. The crash does not happen in Octave 4.0.2 (tested on GNU/Linux and Windows).
If I added some tracing output, I can see that the crash does not happen reproducibly at the same spot every time. However, since there are a few BISTs for that method, chances are very high that it crashes before all tests have been run. At least in Octave 3.8.2.
For now, could you please try to reproduce the problem? You may clone the interval repo and use “make run”. I can also provide a tarball, but that shouldn't be necessary.
$ make run Run GNU Octave with the development version of the package … *SNIP* … octave:1> test @infsup/qr warning: mx_el_or: automatic broadcasting operation applied … *SNIP* ignore the warnings *SNIP* … warning: mx_el_or: automatic broadcasting operation applied panic: Segmentation fault -- stopping myself... Segmentation fault
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