On Mon, May 10, 2021 at 6:59 PM Fabien COELHO <coe...@cri.ensmp.fr> wrote: > > Is gdb installed, and are core files being dumped by that SIGABRT, and > > are they using the default name (/proc/sys/kernel/core_pattern = core), > > which the BF can find with the value it's using, namely 'core_file_glob' > > => 'core*'? > > Nope: > > sh> cat /proc/sys/kernel/core_pattern > |/usr/share/apport/apport %p %s %c %d %P %E
If you don't care about Ubuntu "apport" on this system (something for sending crash/bug reports to developers with a GUI), you could uninstall it (otherwise it overwrites the core_pattern every time it restarts, no matter what you write in your sysctl.conf, apparently), and then sudo sysctl -w kernel.core_pattern=core to undo the setting immediately (or reboot). Then hopefully the build farm would succeed in dumping a backtrace into the log.
