Update to 7.0.9 release and journalctl verify system freeze
All of the following occurred exactly the same on two distinct bare metal boxes: - At the start we were running OpenVZ release 7.0.8 with the factory kernel version vzkernel-3.10.0-862.20.2.vz7.73.27.x86_64 (note that it was *only* the kernel on the factory version -- everything else was on release) - We updated to 7.0.9 release version with matching release kernel 3.10.0-862.20.2.vz7.73.29 then reboot the machine - System reboots successfully - `journalctl --verify` running at 100% CPU and /var/log/messages had nothing new in it since the shutdown part of the reboot. (Presumably because of the in-progress verification) - Within approximately 7-10 minutes the whole server froze and reboots would bring it back to the same state as in the above step - On a reboot, and within that 7-10 minute grace period before freezing, we killed the journalctl --verify process on both machines, and the bare metal nodes remained stable -- no more freeze. My guess would be that either: 1. journalctl's verify process has a bug in it that causes the freeze, or 2. The lack of logging that occurs while journalctl --verify is running causes something else on the box to freak out and lock up We're curious to see if anyone else has experienced a similar issue with journalctl --verify causing hardware lock-ups after a reboot (or update and reboot).
Re: Update to 7.0.9 release and journalctl verify system freeze
We did not face this problem and for investigation we need a memory dump when the node is frozen. Please crash it with "echo c > /proc/sysrq-trigger" or with Alt+SysRQ+c and file a bug with the dump at http://bugs.openvz.org
Please update to systemd-219-63.vl7.6 journalctl --verify is fixed there.
bkbbkb wrote on Mon, 20 May 2019 04:07 Please update to systemd-219-63.vl7.6 journalctl --verify is fixed there. Thanks bkbbkb! Updated to 7.0.10 release along with all release packages of vzlinux 7.5 and can confirm this issue is repaired