[Octave-bug-tracker] [bug #57591] Segmentation faults when running the test suite (mostly with clang)

[Markus Mützel]

Follow-up Comment #37, bug #57591 (project octave):

I haven't found a "no-extras" buildbot that crashed with that error so far.

The only one I found with a crash was this one here:
http://buildbot.octave.org:8010/#/builders/7/builds/1615/steps/6/logs/stdio

Please help improve Octave by contributing tests for these files
(see the list in the file
/scratch/buildbot/workers/jwe-debian-x86_64-2/no-extras-debian/build/test/fntests.log).
double free or corruption (out)
fatal: caught signal Aborted -- stopping myself...
/bin/bash: line 1: 3679392 Aborted                 /bin/bash ../run-octave
--no-init-file --silent --no-history -p
/scratch/buildbot/workers/jwe-debian-x86_64-2/no-extras-debian/build/test/mex
/scratch/buildbot/workers/jwe-debian-x86_64-2/no-extras-debian/build/../src/test/fntests.m
/scratch/buildbot/workers/jwe-debian-x86_64-2/no-extras-debian/build/../src/test
make[3]: *** [Makefile:31583: check-local] Error 134
make[3]: Leaving directory
'/scratch/buildbot/workers/jwe-debian-x86_64-2/no-extras-debian/build'
make[2]: *** [Makefile:27717: check-am] Error 2
make[2]: Leaving directory
'/scratch/buildbot/workers/jwe-debian-x86_64-2/no-extras-debian/build'
make[1]: *** [Makefile:27419: check-recursive] Error 1
make[1]: Leaving directory
'/scratch/buildbot/workers/jwe-debian-x86_64-2/no-extras-debian/build'
make: *** [Makefile:27719: check] Error 2
program finished with exit code 2
elapsedTime=784.988686


But that one looks different and has probably been fixed in the meantime.

Also I haven't found a Fedora buildbot that crashed with that signature. (The
ones mentioned in some of the comments here are due to bug #55225).

If I correctly understood yesterday, the Debian workers use Xvfb for plotting
with the "qt" graphics toolkit while running the test suite.
Could that be related? Does Octave use a different code paths if the
framebuffer is virtual?

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