As my systems are pinned not to accept isc-dhcp-server upgrades, as I run the 18.04 version as it works. I extracted the dhcpd file from your packages and dropped it in place. It ran for about 5 hours with thousands of requests. Then it crashed with
Aug 4 13:13:29 gw2-focal sh[63448]: ../../../../lib/isc/unix/socket.c:3361: INSIST(!sock->pending_send) failed, back trace Aug 4 13:13:29 gw2-focal sh[63448]: #0 0x7f0ed6a02a4a in ?? Aug 4 13:13:29 gw2-focal sh[63448]: #1 0x7f0ed6a02980 in ?? Aug 4 13:13:29 gw2-focal sh[63448]: #2 0x7f0ed6a3e7e1 in ?? Aug 4 13:13:29 gw2-focal sh[63448]: #3 0x7f0ed67e5609 in ?? Aug 4 13:13:29 gw2-focal sh[63448]: #4 0x7f0ed6921103 in ?? In the syslog The start of the crash (up to the base64 dump) is ProblemType: Crash Architecture: amd64 Date: Tue Aug 4 13:13:30 2020 DistroRelease: Ubuntu 20.04 ExecutablePath: /usr/sbin/dhcpd ExecutableTimestamp: 1596530249 ProcCmdline: dhcpd -user dhcpd -group dhcpd -f -4 -pf /run/dhcp-server/dhcpd.pid -cf /etc/dhcp/dhcpd.conf ProcEnviron: Error: [Errno 13] Permission denied: 'environ' ProcMaps: Error: [Errno 13] Permission denied: 'maps' ProcStatus: Name: dhcpd Umask: 0022 State: D (disk sleep) Tgid: 63448 Ngid: 0 Pid: 63448 PPid: 1 TracerPid: 0 Uid: 113 113 113 113 Gid: 118 118 118 118 FDSize: 128 Groups: NStgid: 63448 NSpid: 63448 NSpgid: 63448 NSsid: 63448 VmPeak: 235996 kB VmSize: 170540 kB VmLck: 0 kB VmPin: 0 kB VmHWM: 12468 kB VmRSS: 12468 kB RssAnon: 6216 kB RssFile: 6252 kB RssShmem: 0 kB VmData: 30872 kB VmStk: 132 kB VmExe: 592 kB VmLib: 5424 kB VmPTE: 88 kB VmSwap: 0 kB HugetlbPages: 0 kB CoreDumping: 1 THP_enabled: 1 Threads: 4 SigQ: 0/31897 SigPnd: 0000000000000000 ShdPnd: 0000000000000000 SigBlk: 0000000000000000 SigIgn: 0000000000001000 SigCgt: 0000000180000000 CapInh: 0000000000000000 CapPrm: 0000000000000000 CapEff: 0000000000000000 CapBnd: 0000003fffffffff CapAmb: 0000000000000000 NoNewPrivs: 0 Seccomp: 0 Speculation_Store_Bypass: thread vulnerable Cpus_allowed: f Cpus_allowed_list: 0-3 Mems_allowed: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,0000 0000,00000000,00000000,00000001 Mems_allowed_list: 0 voluntary_ctxt_switches: 40 nonvoluntary_ctxt_switches: 19 Signal: 6 Uname: Linux 5.4.0-42-generic x86_64 UserGroups: N/A -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1872118 Title: DHCP Cluster crashes after a few hours To manage notifications about this bug go to: https://bugs.launchpad.net/dhcp/+bug/1872118/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
