Comment # 10 on bug 1100690 from
The segfault only occurs if that malloc feature is enabled.
The mallopt manpage says that there should be a backtrace. (cf M_CHECK_ACTION)

I'm a bit out of my depth, but the lack of output might indicate that the
feature itself is encountering a problem. If you need more details I'll be
happy to provide them. I'm just not familiar with debugging this beyond what I
provided, so might need some pointer or example commands to run.


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