[Bug 1872118] Re: DHCP Cluster crashes after a few hours
Andrew Welham
1872118 at bugs.launchpad.net
Thu Aug 6 06:30:23 UTC 2020
Yes i restarted isc-dhcp-server with systemctl restart isc-dhcp-server (
even tried a reboot once)
# dpkg -l | grep ppa1
ii isc-dhcp-server 4.4.1-2.1ubuntu6~ppa1 amd64 ISC DHCP server for automatic IP address assignment
ii libdns-export1109 1:9.11.16+dfsg-3~ppa1 amd64 Exported DNS Shared Library
ii libirs-export161 1:9.11.16+dfsg-3~ppa1 amd64 Exported IRS Shared Library
ii libisc-export1105:amd64 1:9.11.16+dfsg-3~ppa1 amd64 Exported ISC Shared Library
ii libisccfg-export163 1:9.11.16+dfsg-3~ppa1 amd64 Exported ISC CFG Shared Library
# systemctl status isc-dhcp-server
● isc-dhcp-server.service - ISC DHCP IPv4 server
Loaded: loaded (/lib/systemd/system/isc-dhcp-server.service; enabled; vendor preset: enabled)
Active: active (running) since Thu 2020-08-06 07:26:09 BST; 2min 39s ago
Docs: man:dhcpd(8)
Main PID: 42301 (dhcpd)
Tasks: 4 (limit: 9569)
Memory: 7.6M
CGroup: /system.slice/isc-dhcp-server.service
└─42301 dhcpd -user dhcpd -group dhcpd -f -4 -pf /run/dhcp-server/dhcpd.pid -cf /etc/dhcp/dhcpd.conf
Aug 06 07:28:47 gw2-focal dhcpd[42301]: Remove host declaration test or remove 192.168.0.90
Aug 06 07:28:47 gw2-focal dhcpd[42301]: from the dynamic address pool for 192.168.0.0/24
Aug 06 07:28:47 gw2-focal dhcpd[42301]: DHCPREQUEST for 192.168.0.90 (192.168.0.2) from MACREMOVED via ens3: ignored (not authoritative).
Aug 06 07:28:47 gw2-focal dhcpd[42301]: DHCPREQUEST for 192.168.6.161 (192.168.6.3) from MACREMOVED (test) via ens13: ignored (not authoritative).
Aug 06 07:28:47 gw2-focal dhcpd[42301]: DHCPREQUEST for 192.168.6.161 (192.168.6.3) from MACREMOVED (test) via ens12: ignored (not authoritative).
Aug 06 07:28:47 gw2-focal dhcpd[42301]: DHCPREQUEST for 192.168.6.161 (192.168.6.3) from MACREMOVED (test) via ens11: ignored (not authoritative).
Aug 06 07:28:47 gw2-focal dhcpd[42301]: DHCPREQUEST for 192.168.6.161 (192.168.6.3) from MACREMOVED (test) via ens10: ignored (not authoritative).
Aug 06 07:28:47 gw2-focal dhcpd[42301]: DHCPREQUEST for 192.168.6.161 (192.168.6.3) from MACREMOVED (test) via ens9: ignored (not authoritative).
Aug 06 07:28:47 gw2-focal dhcpd[42301]: DHCPREQUEST for 192.168.6.161 (192.168.6.3) from MACREMOVED (test) via ens8: ignored (not authoritative).
Aug 06 07:28:47 gw2-focal dhcpd[42301]: DHCPREQUEST for 192.168.6.161 (192.168.6.3) from MACREMOVED (test) via ens3: ignored (not authoritative).
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https://bugs.launchpad.net/bugs/1872118
Title:
DHCP Cluster crashes after a few hours
Status in DHCP:
New
Status in bind9-libs package in Ubuntu:
New
Status in isc-dhcp package in Ubuntu:
Confirmed
Status in bind9-libs source package in Focal:
New
Status in isc-dhcp source package in Focal:
New
Status in bind9-libs source package in Groovy:
New
Status in isc-dhcp source package in Groovy:
Confirmed
Bug description:
I have a pair of DHCP serevrs running in a cluster on ubuntu 20.04, All worked perfectly until recently, when they started stopping with code=killed, status=6/ABRT.
This is being fixed by
https://bugs.launchpad.net/bugs/1870729
However now one stops after a few hours with the following errors. One
can stay on line but not both.
Syslog shows
Apr 10 17:20:15 dhcp-primary sh[6828]: ../../../../lib/isc/unix/socket.c:3361: INSIST(!sock->pending_send) failed, back trace
Apr 10 17:20:15 dhcp-primary sh[6828]: #0 0x7fbe78702a4a in ??
Apr 10 17:20:15 dhcp-primary sh[6828]: #1 0x7fbe78702980 in ??
Apr 10 17:20:15 dhcp-primary sh[6828]: #2 0x7fbe7873e7e1 in ??
Apr 10 17:20:15 dhcp-primary sh[6828]: #3 0x7fbe784e5609 in ??
Apr 10 17:20:15 dhcp-primary sh[6828]: #4 0x7fbe78621103 in ??
nothing in kern.log
apport.log shows
ERROR: apport (pid 6850) Fri Apr 10 17:20:15 2020: called for pid 6828, signal 6, core limit 0, dump mode 2
ERROR: apport (pid 6850) Fri Apr 10 17:20:15 2020: not creating core for pid with dump mode of 2
ERROR: apport (pid 6850) Fri Apr 10 17:20:15 2020: executable: /usr/sbin/dhcpd (command line "dhcpd -user dhcpd -group dhcpd -f -4 -pf /run/dhcp-server/dhcpd.pid -cf /etc/dhcp/dhcpd.conf")
ERROR: apport (pid 6850) Fri Apr 10 17:20:15 2020: is_closing_session(): no DBUS_SESSION_BUS_ADDRESS in environment
ERROR: apport (pid 6850) Fri Apr 10 17:20:15 2020: wrote report /var/crash/_usr_sbin_dhcpd.0.crash
/var/crash/_usr_sbin_dhcpd.0.crash shows
ProblemType: Crash
Architecture: amd64
CrashCounter: 1
Date: Fri Apr 10 17:20:15 2020
DistroRelease: Ubuntu 20.04
ExecutablePath: /usr/sbin/dhcpd
ExecutableTimestamp: 1586210315
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: 6828
Ngid: 0
Pid: 6828
PPid: 1
TracerPid: 0
Uid: 113 113 113 113
Gid: 118 118 118 118
FDSize: 128
Groups:
NStgid: 6828
NSpid: 6828
NSpgid: 6828
NSsid: 6828
VmPeak: 236244 kB
VmSize: 170764 kB
VmLck: 0 kB
VmPin: 0 kB
VmHWM: 12064 kB
VmRSS: 12064 kB
RssAnon: 5940 kB
RssFile: 6124 kB
RssShmem: 0 kB
VmData: 30792 kB
VmStk: 132 kB
VmExe: 592 kB
VmLib: 5424 kB
VmPTE: 76 kB
VmSwap: 0 kB
HugetlbPages: 0 kB
CoreDumping: 1
THP_enabled: 1
Threads: 4
SigQ: 0/7609
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: 3
Cpus_allowed_list: 0-1
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: 111
nonvoluntary_ctxt_switches: 144
Signal: 6
Uname: Linux 5.4.0-21-generic x86_64
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