Can someone provide some guidance with my server, I have a fairly new centos 8 server, pretty much just a KVM host but I have noticed that its dumping and rebooting at various times. Journalctl does not go back past the reboot so I am unable to catch what may be causing it, it appears to be KVM from /var/log/messages and it appears I should have a kernel dump file but I am unable to find it. I had these same kvm images running on the centos 7 server for over a year at a time, not sure what is making things less stable.
Any help would be appreciated, thanks.
Here is the output from /var/log/messages:
Nov 12 16:28:53 f15ex kernel: traps: CPU 1/KVM[4080] general protection ip:55fa8cac0280 sp:7f71cc9c3398 error:0 in qemu-kvm[55fa8c662000+9b0000] Nov 12 16:28:54 f15ex systemd[1]: Created slice system-systemd\x2dcoredump.slice. Nov 12 16:28:54 f15ex systemd[1]: Started Process Core Dump (PID 23836/UID 0). Nov 12 16:28:54 f15ex systemd-coredump[23837]: Resource limits disable core dumping for process 4027 (qemu-kvm). Nov 12 16:28:54 f15ex systemd-coredump[23837]: Process 4027 (qemu-kvm) of user 107 dumped core. Nov 12 16:28:54 f15ex libvirtd[1205]: 2019-11-12 22:28:54.118+0000: 1205: info : libvirt version: 4.5.0, package: 24.3.module_el8.0.0+189+f9babebb (CentOS Bu ildsys bugs@centos.org, 2019-10-08-21:54:46, ) Nov 12 16:28:54 f15ex libvirtd[1205]: 2019-11-12 22:28:54.118+0000: 1205: info : hostname: f15ex Nov 12 16:28:54 f15ex libvirtd[1205]: 2019-11-12 22:28:54.118+0000: 1205: error : qemuMonitorIO:718 : internal error: End of file from qemu monitor Nov 12 16:28:54 f15ex avahi-daemon[1064]: Interface vnet2.IPv6 no longer relevant for mDNS. Nov 12 16:28:54 f15ex kernel: br99: port 3(vnet2) entered disabled state Nov 12 16:28:54 f15ex avahi-daemon[1064]: Leaving mDNS multicast group on interface vnet2.IPv6 with address fe80::fc54:ff:fe60:c47d. Nov 12 16:28:54 f15ex kernel: device vnet2 left promiscuous mode Nov 12 16:28:54 f15ex kernel: br99: port 3(vnet2) entered disabled state Nov 12 16:28:54 f15ex avahi-daemon[1064]: Withdrawing address record for fe80::fc54:ff:fe60:c47d on vnet2. Nov 12 16:28:54 f15ex NetworkManager[1186]: <info> [1573597734.1428] device (vnet2): state change: activated -> unmanaged (reason 'unmanaged', sys-iface-sta te: 'removed') Nov 12 16:28:54 f15ex NetworkManager[1186]: <info> [1573597734.1431] device (br99): bridge port vnet2 was detached Nov 12 16:28:54 f15ex NetworkManager[1186]: <info> [1573597734.1431] device (vnet2): released from master device br99 Nov 12 16:28:54 f15ex dbus-daemon[1057]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatch er.service' requested by ':1.13' (uid=0 pid=1186 comm="/usr/sbin/NetworkManager --no-daemon " label="system_u:system_r:NetworkManager_t:s0") Nov 12 16:28:54 f15ex systemd[1]: Starting Network Manager Script Dispatcher Service... Nov 12 16:28:54 f15ex dbus-daemon[1057]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher' Nov 12 16:28:54 f15ex systemd[1]: Started Network Manager Script Dispatcher Service. Nov 12 16:28:54 f15ex nm-dispatcher[23857]: req:1 'down' [vnet2]: new request (3 scripts) Nov 12 16:28:54 f15ex nm-dispatcher[23857]: req:1 'down' [vnet2]: start running ordered scripts... Nov 12 16:28:54 f15ex kvm[23865]: 2 guests now active Nov 12 16:28:54 f15ex systemd-machined[1061]: Machine qemu-3-OMV terminated. Nov 12 16:28:54 f15ex kernel: Warning: mpt3sas 0000:0a:00.0 [1000:0072] - Support for this device has been removed in this major release. Please check the re moved functionality section of the release notes.