> and check dmesg if the kernel says anything out of the ordinary after the crash? This is all I got. Not sure that this will help in any way ... ;) [ 38.970923] audit: type=1131 audit(1553811118.623:61): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-hostnamed comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' [ 71.377402] audit: type=1701 audit(1553811151.165:62): auid=1000 uid=1000 gid=1000 ses=2 pid=1692 comm=57656220436F6E74656E74 exe="/usr/lib/firefox/firefox" sig=8 res=1 [ 71.426246] audit: type=1130 audit(1553811151.215:63): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@0-1936-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' [ 72.892044] audit: type=1131 audit(1553811152.679:64): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@0-1936-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' [ 74.147791] audit: type=1701 audit(1553811153.937:65): auid=1000 uid=1000 gid=1000 ses=2 pid=1902 comm=57656220436F6E74656E74 exe="/usr/lib/firefox/firefox" sig=8 res=1 [ 74.164974] audit: type=1130 audit(1553811153.953:66): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@1-2016-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' [ 75.691743] audit: type=1131 audit(1553811155.481:67): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@1-2016-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' [ 82.813829] audit: type=1701 audit(1553811162.608:68): auid=1000 uid=1000 gid=1000 ses=2 pid=1981 comm=57656220436F6E74656E74 exe="/usr/lib/firefox/firefox" sig=8 res=1 [ 82.830137] audit: type=1130 audit(1553811162.624:69): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@2-2096-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' [ 84.831242] audit: type=1131 audit(1553811164.622:70): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@2-2096-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' [ 90.422327] audit: type=1701 audit(1553811170.217:71): auid=1000 uid=1000 gid=1000 ses=2 pid=2038 comm=57656220436F6E74656E74 exe="/usr/lib/firefox/firefox" sig=8 res=1 [ 90.439593] audit: type=1130 audit(1553811170.237:72): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@3-2147-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' [ 91.920716] audit: type=1131 audit(1553811171.717:73): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@3-2147-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' Recently there were several systemd updates via Archlinux - maybe this could be related. However, as I said before, this issue is not present with 4.19-rt regards Bernhard
