Thanks paying attention to this report. =============================================== Was there a prior kernel version where you were not having this particular problem? => I occasionnally get random (?) kernel panic since several month but it is the fist time it was followed with this bug report in dmesg
=============================================== Did this issue start happening after an update/upgrade? => I've not carefully memorised the last upgrade I made on the system but according to zgrep -h " upgrade " /var/log/dpkg.log* | sort | less I got : 2017-04-19 11:04:12 upgrade libdns-export162:amd64 1:9.10.3.dfsg.P4-8ubuntu1.5 1:9.10.3.dfsg.P4-8ubuntu1.6 2017-04-19 11:04:12 upgrade libisc-export160:amd64 1:9.10.3.dfsg.P4-8ubuntu1.5 1:9.10.3.dfsg.P4-8ubuntu1.6 2017-04-19 11:04:13 upgrade bind9-host:amd64 1:9.10.3.dfsg.P4-8ubuntu1.5 1:9.10.3.dfsg.P4-8ubuntu1.6 2017-04-19 11:04:13 upgrade dnsutils:amd64 1:9.10.3.dfsg.P4-8ubuntu1.5 1:9.10.3.dfsg.P4-8ubuntu1.6 2017-04-19 11:04:13 upgrade libbind9-140:amd64 1:9.10.3.dfsg.P4-8ubuntu1.5 1:9.10.3.dfsg.P4-8ubuntu1.6 2017-04-19 11:04:13 upgrade libdns162:amd64 1:9.10.3.dfsg.P4-8ubuntu1.5 1:9.10.3.dfsg.P4-8ubuntu1.6 2017-04-19 11:04:13 upgrade libisc160:amd64 1:9.10.3.dfsg.P4-8ubuntu1.5 1:9.10.3.dfsg.P4-8ubuntu1.6 2017-04-19 11:04:13 upgrade libisccc140:amd64 1:9.10.3.dfsg.P4-8ubuntu1.5 1:9.10.3.dfsg.P4-8ubuntu1.6 2017-04-19 11:04:13 upgrade libisccfg140:amd64 1:9.10.3.dfsg.P4-8ubuntu1.5 1:9.10.3.dfsg.P4-8ubuntu1.6 2017-04-19 11:04:13 upgrade liblwres141:amd64 1:9.10.3.dfsg.P4-8ubuntu1.5 1:9.10.3.dfsg.P4-8ubuntu1.6 2017-04-19 11:04:14 upgrade dnsmasq-base:amd64 2.75-1ubuntu0.16.04.1 2.75-1ubuntu0.16.04.2 2017-04-19 11:04:14 upgrade flashplugin-installer:amd64 25.0.0.127ubuntu0.16.04.1 25.0.0.148ubuntu0.16.04.1 2017-04-19 11:04:14 upgrade libwebkit2gtk-4.0-37-gtk2:amd64 2.14.5-0ubuntu0.16.04.1 2.16.1-0ubuntu0.16.04.1 2017-04-19 11:04:15 upgrade libwebkit2gtk-4.0-37:amd64 2.14.5-0ubuntu0.16.04.1 2.16.1-0ubuntu0.16.04.1 2017-04-19 11:04:16 upgrade libjavascriptcoregtk-4.0-18:amd64 2.14.5-0ubuntu0.16.04.1 2.16.1-0ubuntu0.16.04.1 2017-04-19 11:04:17 upgrade gir1.2-javascriptcoregtk-4.0:amd64 2.14.5-0ubuntu0.16.04.1 2.16.1-0ubuntu0.16.04.1 2017-04-19 11:04:17 upgrade gir1.2-webkit2-4.0:amd64 2.14.5-0ubuntu0.16.04.1 2.16.1-0ubuntu0.16.04.1 2017-04-21 11:05:03 upgrade distro-info-data:all 0.28ubuntu0.2 0.28ubuntu0.3 2017-04-21 11:05:03 upgrade firefox:amd64 52.0.2+build1-0ubuntu0.16.04.1 53.0+build6-0ubuntu0.16.04.1 2017-04-21 11:05:03 upgrade libfreetype6:amd64 2.6.1-0.1ubuntu2.1 2.6.1-0.1ubuntu2.2 2017-04-21 11:05:03 upgrade libfreetype6:i386 2.6.1-0.1ubuntu2.1 2.6.1-0.1ubuntu2.2 2017-04-21 11:05:07 upgrade firefox-locale-en:amd64 52.0.2+build1-0ubuntu0.16.04.1 53.0+build6-0ubuntu0.16.04.1 2017-04-21 11:05:07 upgrade firefox-locale-fr:amd64 52.0.2+build1-0ubuntu0.16.04.1 53.0+build6-0ubuntu0.16.04.1 =============================================== This morning I don't reproduce the bug. But I don't know if this is random or because I've tried something else before I read your anser : I had a non-working PCI TV-Card on My PC and removed it before boot. Dmesg is much more cleaner now but (again) I don't know if this is random or if if this was the cause of the bug... I join the new dmesg Should I wait to see if bug repeat in next days or would it be helpfull to follow the test you [Joseph Salisbury (jsalisbury)] requiered ? I'm OK to spend time on this if it can help. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1685613 Title: kernel Oops - BUG: unable to handle kernel NULL pointer dereference at 00000000000002e3; RIP [<ffffffff81031532>] show_stack_log_lvl+0x72/0x160 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1685613/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
