Hello Michael, I am not involved in packaging dislocker but might have some points.
This "error 14" should mean it cannot read from memory the next instruction to execute. This makes sense as the "ip" or "RIP" has a value of 0xbb6 which is unlikely to contain program code. If it is possible to install e.g. systemd-coredump more details of any crashes are tried to be collected. I guess for this kind of crash the output of "journalctl --no-pager" migth not reveal much more useful information, but "coredump gdb", with the command "bt" at the "(gdb)" prompt, might be able to show a reasonable backtrace. This would improve if the debug symbols in package dislocker-dbgsym could be installed, too. More hints on the debug symbol repositories and this topic in general are collected in . Kind regards, Bernhard  https://wiki.debian.org/InterpretingKernelOutputAtProcessCrash "error 14" == 0x14 == 0n20 == 0b10100 -> user-mode access, fault was an instruction fetch  https://wiki.debian.org/HowToGetABacktrace#Installing_the_debugging_symbols