Public bug reported: dhcpd no longer stops when sent a SIGTERM, but appears to lock up on a futex.
Final few lines of strace: -- sendto(6, "<182>Feb 24 15:12:38 dhcpd[1414]"..., 58, MSG_NOSIGNAL, NULL, 0) = 58 write(2, "Server starting service.", 24Server starting service.) = 24 write(2, "\n", 1 ) = 1 futex(0x7fe51a9000bc, FUTEX_WAIT_PRIVATE, 1, NULL) = ? ERESTARTSYS (To be restarted if SA_RESTART is set) --- SIGABRT {si_signo=SIGABRT, si_code=SI_USER, si_pid=1421, si_uid=0} --- +++ killed by SIGABRT (core dumped) +++ -- This may be related to the move from bind 9.9 to 9.10 (see, eg http://comments.gmane.org/gmane.network.dhcp.isc.dhcp-server/13689 where Fedora report being unable to build dhcpd against 9.10) ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: isc-dhcp-server 4.3.3-5ubuntu7 ProcVersionSignature: Ubuntu 4.4.0-7.22-generic 4.4.2 Uname: Linux 4.4.0-7-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 Date: Wed Feb 24 15:16:52 2016 ProcEnviron: LANGUAGE=en_GB: TERM=xterm-256color PATH=(custom, no user) LANG=en_GB.UTF-8 SHELL=/bin/bash SourcePackage: isc-dhcp UpgradeStatus: No upgrade log present (probably fresh install) modified.conffile..etc.dhcp.dhcpd.conf: [modified] mtime.conffile..etc.dhcp.dhcpd.conf: 2016-02-24T14:24:53.396201 upstart.isc-dhcp-server.override: manual ** Affects: isc-dhcp (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1549330 Title: dhcpd 4.3.3-5ubuntu7 aborts after getting stuck on futex (bind 9.10 library interaction?) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1549330/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs