SEGFAULT with MM HEAD when probing

Bjørn Mork bjorn at
Wed Apr 21 19:59:13 UTC 2021

Aleksander Morgado <aleksander at> writes:

>> Bu can't I just run valgrind on the MIPS CPU?  Any hints on how to use
>> valgrind?  It's one of those tools I've been thing that I should
>> explore, but never have..
> I have no idea if you can run valgrind on that setup, just give it a
> try maybe? If we're interested in finding invalid read/writes in
> memory (ignoring leaks), the valgrind call would be basically this:
> # G_SLICE=always-malloc valgrind --log-file=valgrind.log
> /usr/sbin/ModemManager --debug
> The valgrind.log file would contain the errors reported.

OK, that seemed too easy.  Don't know how to progress here:

root at finn:~# G_SLICE=always-malloc valgrind --log-file=valgrind.log /tmp/ModemManager --debug
Illegal instruction


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