Enable Core Dump systemd: Difference between revisions
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(Created page with "=Introduction= This is a HowToDO to enable Core Dump with systemd on PVE 4.0 (Debian Jessie). =Requirements= To activate you have to create /etc/security/limits.d/core.conf ...") |
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=Introduction= | == Introduction == | ||
This is a HowToDO to enable Core Dump with systemd on PVE 4.0 (Debian Jessie). | This is a HowToDO to enable Core Dump with systemd on PVE 4.0 (Debian Jessie). | ||
=Requirements= | == Requirements == | ||
To activate you have to create | To activate you have to create | ||
/etc/security/limits.d/core.conf | /etc/security/limits.d/core.conf | ||
| Line 8: | Line 8: | ||
/var/lib/coredumps | /var/lib/coredumps | ||
==Allow Dump from CLI== | === Allow Dump from CLI === | ||
To allow root to core dump from cli. | To allow root to core dump from cli. | ||
| Line 17: | Line 17: | ||
root soft core unlimited | root soft core unlimited | ||
==Allow Dump from Daemons== | === Allow Dump from Daemons === | ||
To allow all daemons witch are started by systemd to core dump. | To allow all daemons witch are started by systemd to core dump. | ||
| Line 33: | Line 33: | ||
fs.suid_dumpable = 2 | fs.suid_dumpable = 2 | ||
==Reboot Server== | === Reboot Server === | ||
To activate this settings reboot the server. | To activate this settings reboot the server. | ||
| Line 40: | Line 40: | ||
but it didn't work for me | but it didn't work for me | ||
=Test it= | == Test it == | ||
To test if everything is working fine do this few steps to verify. | To test if everything is working fine do this few steps to verify. | ||
| Line 65: | Line 65: | ||
Hint: Some lines were ellipsized, use -l to show in full. | Hint: Some lines were ellipsized, use -l to show in full. | ||
root@pve:kill - | root@pve:kill -11 1281 | ||
root@pve:~# ls -hal /var/lib/coredumps/ | root@pve:~# ls -hal /var/lib/coredumps/ | ||
| Line 71: | Line 71: | ||
drwxrwx-wx 2 root root 4.0K May 11 08:55 . | drwxrwx-wx 2 root root 4.0K May 11 08:55 . | ||
drwxr-xr-x 50 root root 4.0K May 11 08:16 .. | drwxr-xr-x 50 root root 4.0K May 11 08:16 .. | ||
-rw------- 1 root www-data 88M May 11 15:43 core-pveproxy- | -rw------- 1 root www-data 88M May 11 15:43 core-pveproxy-sig11-user33-group33-pid13696-time1431351789 | ||
root@pve:~# systemctl start pveproxy.service | root@pve:~# systemctl start pveproxy.service | ||
[[Category:HOWTO]] | [[Category:HOWTO]] [[Category:Troubleshooting]] | ||
Latest revision as of 11:26, 16 August 2022
Introduction
This is a HowToDO to enable Core Dump with systemd on PVE 4.0 (Debian Jessie).
Requirements
To activate you have to create
/etc/security/limits.d/core.conf /etc/sysctl.d/core.conf /var/lib/coredumps
Allow Dump from CLI
To allow root to core dump from cli.
Edit: /etc/security/limits.d/core.conf
root hard core unlimited root soft core unlimited
Allow Dump from Daemons
To allow all daemons witch are started by systemd to core dump.
Edit: /etc/systemd/system.conf add following
DefaultLimitCORE=infinity
Edit: /etc/sysctl.d/core.conf add following
kernel.core_pattern = /var/lib/coredumps/core-%e-sig%s-user%u-group%g-pid%p-time%t kernel.core_uses_pid = 1 fs.suid_dumpable = 2
Reboot Server
To activate this settings reboot the server.
Note: normally it should be enough to call
systemctl daemon-reexec
but it didn't work for me
Test it
To test if everything is working fine do this few steps to verify.
root@pve:~# systemctl status pveproxy.service
● pveproxy.service - PVE API Proxy Server
Loaded: loaded (/lib/systemd/system/pveproxy.service; enabled)
Active: active (running) since Mon 2015-05-11 08:54:50 CEST; 6h ago
Process: 1280 ExecStart=/usr/bin/pveproxy start (code=exited, status=0/SUCCESS)
Main PID: 1281 (pveproxy)
CGroup: /system.slice/pveproxy.service
├─1281 pveproxy
├─1282 pveproxy worker
├─1283 pveproxy worker
└─1284 pveproxy worker
May 11 08:54:50 sasha pveproxy[1280]: Can't stat /usr/share/pve-manager/man...ry
May 11 08:54:50 sasha pveproxy[1280]: at /usr/bin/pveproxy line 74.
May 11 08:54:50 sasha pveproxy[1280]: Can't stat /usr/share/pve-manager/man...ry
at /usr/bin/pveproxy line 74.
May 11 08:54:50 sasha pveproxy[1281]: starting server
May 11 08:54:50 sasha pveproxy[1281]: starting 3 worker(s)
May 11 08:54:50 sasha pveproxy[1281]: worker 1282 started
May 11 08:54:50 sasha pveproxy[1281]: worker 1283 started
May 11 08:54:50 sasha pveproxy[1281]: worker 1284 started
Hint: Some lines were ellipsized, use -l to show in full.
root@pve:kill -11 1281 root@pve:~# ls -hal /var/lib/coredumps/ total 3.1M drwxrwx-wx 2 root root 4.0K May 11 08:55 . drwxr-xr-x 50 root root 4.0K May 11 08:16 .. -rw------- 1 root www-data 88M May 11 15:43 core-pveproxy-sig11-user33-group33-pid13696-time1431351789
root@pve:~# systemctl start pveproxy.service