[Octave-bug-tracker] [bug #61742] Crash on exit from threading

[Arun Giridhar]

Follow-up Comment #9, bug #61742 (project octave):

My library is the same as yours except for the number of cores/threads. I am
slowly narrowing in on the cause of the crash, and I can now trigger a
repeatable crash within OpenBlas 0.3.19 by setting CPP_THREAD_SAFETY_TEST=1
while configuring and building it. It passes the DGEMV threading tests and
then crashes on exiting dgemv_tester with a segfault, causing a library build
failure. This causes a crash when building 0.3.19 but NOT the git source of
OpenBlas, so something is weird with the library. The good news is that I can
trigger this crash independently of Octave.

I'll put something together and submit a bug report to OpenBlas. Will report
here what I find out.

Due to the nature of my distro (Manjaro), the distro-supplied OpenBlas is just
a PKGBUILD script to download and build the library from source. On the plus
side, this tunes the library to the individual user. On the minus side, any
errors will be weird and non-universal.

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