Hi, I am facing a peculiar issue where a system reboot sometimes & not always posts a crash in last output.
root pts/0 Wed Dec 4 11:47 still logged in reboot system boot Wed Dec 4 11:30 - 11:57 (00:26) root pts/0 Tue Dec 3 18:14 - crash (17:16) reboot system boot Tue Dec 3 10:03 - 11:57 (1+01:53) root pts/0 Mon Dec 2 18:03 - down (15:56) reboot system boot Mon Dec 2 11:19 - 10:00 (22:40) root pts/0 Sat Nov 30 17:22 - crash (1+17:57) reboot system boot Sat Nov 30 10:36 - 10:00 (2+23:24) root pts/0 Fri Nov 29 17:35 - down (16:56 I then created an alias - alias reboot='sync && sleep 3s && sync && sleep 3s && /usr/bin/systemctl reboot' Dec 04 12:49:34 localhost.localdomain kernel: type=1131 audit(1575443974.870:149): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system Dec 04 12:49:34 localhost.localdomain systemd[1]: Stopped Create Volatile Files and Directories. Dec 04 12:49:34 localhost.localdomain kernel: type=1130 audit(1575443974.871:150): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system Dec 04 12:49:34 localhost.localdomain kernel: type=1131 audit(1575443974.871:151): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system Dec 04 12:49:34 localhost.localdomain kernel: type=1130 audit(1575443974.872:152): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system Dec 04 12:49:34 localhost.localdomain kernel: type=1131 audit(1575443974.872:153): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system Dec 04 12:49:34 localhost.localdomain systemd[1]: Stopped Import network configuration from initramfs. Dec 04 12:49:34 localhost.localdomain systemd[1]: Stopped target Local File Systems. Dec 04 12:49:34 localhost.localdomain systemd[1]: Unmounting /rsync-rootIncrBkps-rsyncLogs-etc/rsyncmirror... Dec 04 12:49:34 localhost.localdomain systemd[1]: Unmounting /run/user/0... Dec 04 12:49:34 localhost.localdomain systemd[1]: Unmounting /rsync-rootIncrBkps-rsyncLogs-etc/rsyncINCRFILES-BKPdir... Dec 04 12:49:34 localhost.localdomain kernel: type=1130 audit(1575443974.874:154): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system Dec 04 12:49:34 localhost.localdomain kernel: type=1131 audit(1575443974.874:155): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system Dec 04 12:49:34 localhost.localdomain systemd[1]: Stopped Configure read-only root support. Dec 04 12:49:34 localhost.localdomain systemd[1]: Unmounting /var/opt... Dec 04 12:49:34 localhost.localdomain systemd[1]: Unmounting /boot... Dec 04 12:49:34 localhost.localdomain kernel: XFS (dm-0): Unmounting Filesystem Dec 04 12:49:34 localhost.localdomain systemd[1]: Unmounted /run/user/0. Dec 04 12:49:34 localhost.localdomain systemd[1]: Unmounted /rsync-rootIncrBkps-rsyncLogs-etc/rsyncmirror. Dec 04 12:49:34 localhost.localdomain systemd[1]: Unmounted /rsync-rootIncrBkps-rsyncLogs-etc/rsyncINCRFILES-BKPdir. Dec 04 12:49:34 localhost.localdomain systemd[1]: Stopped target Swap. Dec 04 12:49:34 localhost.localdomain systemd[1]: Deactivating swap /dev/disk/by-label/swap... Dec 04 12:49:34 localhost.localdomain systemd[1]: Unmounted /var/opt. Dec 04 12:49:34 localhost.localdomain systemd[1]: Unmounted /boot. Dec 04 12:49:34 localhost.localdomain systemd[1]: Stopped target Local File Systems (Pre). Dec 04 12:49:34 localhost.localdomain systemd[1]: Stopped Remount Root and Kernel File Systems. Dec 04 12:49:34 localhost.localdomain systemd[1]: Stopped Create Static Device Nodes in /dev. Dec 04 12:49:34 localhost.localdomain kernel: type=1130 audit(1575443974.900:156): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system Dec 04 12:49:34 localhost.localdomain systemd[1]: Stopped Collect Read-Ahead Data. Dec 04 12:49:34 localhost.localdomain systemd[1]: Stopped Replay Read-Ahead Data. Dec 04 12:49:34 localhost.localdomain systemd[1]: Reached target Shutdown. Dec 04 12:49:34 localhost.localdomain systemd[1]: Stopping Monitoring of LVM2 mirrors, snapshots etc. using dmeventd or progress polling... Dec 04 12:49:34 localhost.localdomain systemd[1]: Deactivated swap /dev/disk/by-path/pci-0000:04:00.0-scsi-0:0:0:0-part4. Dec 04 12:49:34 localhost.localdomain systemd[1]: Deactivated swap /dev/sda4. Dec 04 12:49:34 localhost.localdomain systemd[1]: Deactivated swap /dev/disk/by-uuid/78b0d524-dc7d-403f-ab42-b7318368a154. Dec 04 12:49:34 localhost.localdomain systemd[1]: Reached target Unmount All Filesystems. Dec 04 12:49:34 localhost.localdomain systemd[1]: Reached target Final Step. Dec 04 12:49:34 localhost.localdomain lvm[2160]: 1 logical volume(s) in volume group "vg_stndby" unmonitored Dec 04 12:49:34 localhost.localdomain systemd[1]: Starting Reboot... Dec 04 12:49:34 localhost.localdomain systemd[1]: Shutting down. Dec 04 12:49:34 localhost.localdomain systemd[1]: Hardware watchdog 'iTCO_wdt', version 0 Dec 04 12:49:34 localhost.localdomain systemd[1]: Set hardware watchdog to 10min. Dec 04 12:49:34 localhost.localdomain kernel: watchdog: watchdog0: watchdog did not stop! Dec 04 12:49:35 localhost.localdomain systemd-shutdown[1]: Syncing filesystems and block devices. Dec 04 12:49:35 localhost.localdomain systemd-shutdown[1]: Sending SIGTERM to remaining processes... Dec 04 12:49:35 localhost.localdomain systemd-journal[689]: Journal stopped journal entries do not show any errors, but it is recorded as crash in last since there's no entry of - shutdown system down - in last. last records sometimes a proper shutdown, many times as crash even though the reboot is done similarly all the times. What could be the issue or should I be concerned about it. --
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