On Sun, Sep 07, 2025 at 09:33:45PM +0200, Sébastien Villemot wrote: > Source: mrtrix3 > Version: 3.0.4-1 > Severity: normal > > Dear Maintainer, > > Setting DEB_BUILD_OPTIONS="parallel=1" when building the package (for example > by passing the -j1 option to dpkg-buildpackage) does not lead to a serial > build. Instead, many g++ instances are spawn, probably as many as there are > logical cores. See Policy §4.9.1 for more details on the DEB_BUILD_OPTIONS > variable and the parallel flag. > > This is a problem for building mrtrix3 on machines with a lot of logical cores > but not enough RAM for handling so many g++ processes. I personally > experienced > such an out-of-memory error on a machine with 32 logical cores and 32GB RAM.
You are absolutely right. Please let me know if 3.0.8-4 works for you, I think it might work, but I have not tested it a lot. Thanks.

