Hello,
Happy New Year, 2020 to everyone.
I am witnessing random reboots, freezes while opening either Firefox, Falkon, Seamonkey or Tor-Browser under moderate load. I am using Cinnamon DE at present and have witnessed same behavior while using LXDE, IceWM.
I see some errors in /var/log/warn -
2020-01-02T05:25:24.810055-08:00 linux-gfn3 kernel: 3980.328909] CPU: 0 PID: 7894 Comm: Chrome_InProcGp Tainted: P O 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
2020-01-02T05:41:45.498012-08:00 linux-gfn3 kernel: 4961.032960] CPU: 2 PID: 27316 Comm: Web Content Tainted: P D O 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
2020-01-03T03:20:18.529192-08:00 localhost kernel: 3935.153249] CPU: 0 PID: 13306 Comm: updatedb Tainted: P O 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
2020-01-03T03:20:18.529240-08:00 localhost kernel: 3935.153508] CPU: 0 PID: 13306 Comm: updatedb Tainted: P O 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
2020-01-03T03:20:18.529285-08:00 localhost kernel: 3935.153748] CPU: 0 PID: 13306 Comm: updatedb Tainted: P O 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
2020-01-03T03:45:20.441313-08:00 localhost kernel: 5437.088896] CPU: 3 PID: 3288 Comm: X Tainted: P O 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
2020-01-03T03:45:34.241604-08:00 localhost kernel: 5450.891114] CPU: 1 PID: 17266 Comm: c++ Tainted: P W O 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
2020-01-03T03:56:17.444688-08:00 localhost kernel: 425.608139] CPU: 2 PID: 4862 Comm: cc1plus Tainted: P O 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
2020-01-05T20:07:50.721868-08:00 localhost kernel: 1885.715093] CPU: 3 PID: 14140 Comm: sh Tainted: P O 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
2020-01-07T22:30:01.755169-08:00 localhost kernel: 921.332617] CPU: 0 PID: 407 Comm: kworker/0:2 Tainted: P O 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
2020-01-08T00:35:28.823786-08:00 localhost kernel: 2832.295179] CPU: 3 PID: 374 Comm: kworker/u8:8 Tainted: P O 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
2020-01-08T22:01:19.211553-08:00 localhost kernel: 6185.010580] CPU: 1 PID: 5987 Comm: kworker/1:0 Tainted: P O 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
2020-01-09T09:06:08.103405-08:00 localhost kernel: 7008.005934] CPU: 0 PID: 9535 Comm: bash Tainted: P O 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
2020-01-10T00:51:13.373199-08:00 localhost kernel: 136.493812] CPU: 3 PID: 3823 Comm: falkon Tainted: P O 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
2020-01-10T00:51:41.373223-08:00 localhost kernel: 164.497193] CPU: 3 PID: 3823 Comm: falkon Tainted: P O L 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
2020-01-10T00:51:47.745154-08:00 localhost kernel: 170.869902] CPU: 3 PID: 3823 Comm: falkon Tainted: P O L 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
2020-01-10T00:52:13.373207-08:00 localhost kernel: 196.498546] CPU: 3 PID: 3823 Comm: falkon Tainted: P O L 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
2020-01-10T00:52:41.373210-08:00 localhost kernel: 224.496537] CPU: 3 PID: 3823 Comm: falkon Tainted: P O L 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
2020-01-10T00:53:09.373226-08:00 localhost kernel: 252.494560] CPU: 3 PID: 3823 Comm: falkon Tainted: P O L 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
2020-01-10T00:53:37.373220-08:00 localhost kernel: 280.494735] CPU: 3 PID: 3823 Comm: falkon Tainted: P O L 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
2020-01-10T00:54:05.373206-08:00 localhost kernel: 308.495204] CPU: 3 PID: 3823 Comm: falkon Tainted: P O L 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
2020-01-10T00:54:33.373205-08:00 localhost kernel: 336.495665] CPU: 3 PID: 3823 Comm: falkon Tainted: P O L 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
2020-01-10T00:54:47.761183-08:00 localhost kernel: 350.883824] CPU: 3 PID: 3823 Comm: falkon Tainted: P O L 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
2020-01-10T00:55:13.373201-08:00 localhost kernel: 376.496278] CPU: 3 PID: 3823 Comm: falkon Tainted: P O L 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
2020-01-10T00:55:41.373199-08:00 localhost kernel: 404.496709] CPU: 3 PID: 3823 Comm: falkon Tainted: P O L 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
2020-01-10T00:56:09.373184-08:00 localhost kernel: 432.497142] CPU: 3 PID: 3823 Comm: falkon Tainted: P O L 4.12.14-lp151.28.36-default #1 openSUSE Leap 15.1
I don’t experience these issues in KDE on same machine, it runs smooth with many resource intensive applications such as clamd, amavisd-new, fail2ban, apache2, nginx, redis, grafana, influx, telegraf, prometheus, promtail, netdata, cockpit, zeek, ntopng, suricata, evebox, custom conntrack applications, etc and 2-3 browsers open at the same time.
Unfortunately, coredumpctl doesn’t catch this. Please let me know how to investigate this and fix it.
Thanks.