I hit the same error on devuan unstable, with startpar crashing on boot: [ 10.025881] dracut: Switching root [ 10.339687] startpar[720]: segfault at 0 ip 0000000000000000 sp 00007fffbdca9c38 error 14 likely on CPU 1 (core 0, socket 0) [ 10.340225] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 10.349516] startpar[820]: segfault at 0 ip 0000000000000000 sp 00007ffd52c34e48 error 14 likely on CPU 3 (core 1, socket 0) [ 10.350086] Code: Unable to access opcode bytes at 0xffffffffffffffd6. Setting init_mlocked_on_free=0 on the commandline mitigates this crash and allows the system to boot successfully. I managed to get a strace of startpar here: https://hannover.ccc.de/~ingo/startpar-6.10-rc1/startpar.strace.txt.gz Complete dmesg of the boot: https://hannover.ccc.de/~ingo/startpar-6.10-rc1/dmesg-6.10-rc1.gz I'm not sure if this actually is a kernel bug or if it is a classical use after free that just got noticed by this change. Ingo -- const_cast<long double>(Λ)
