The problem seems to be fixed in 1.8.9~rc1-1: - no more hogging the CPU - strace shows that for e.g. "sudo sleep 300", the sudo process blocks in poll() as expected
Maybe related to the upstream "Redo preserve_fds support ..." commit. I suspect that pam_systemd.so keeps a D-bus connection to systemd-logind even after pam (session) processing is finished and that this (unexpected) open fd confused sudo. Cheers, Roderich
