Does installing intel-microcode fix the issue ? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-firmware in Ubuntu. https://bugs.launchpad.net/bugs/1509764
Title: Machine Check Exception with Broadwell CPU Status in linux-firmware package in Ubuntu: New Bug description: My system freezes and reboots 30 seconds later. This happens at random times between shortly after boot or up to three ours after boot. My CPU is a Core i5 5675C. Happens with Ubuntu 15.04 and 15.10. I think it is the same problem discussed here https://bugzilla.kernel.org/show_bug.cgi?id=103351 They have a microcode update as a fix there. All Broadwell CPUs seem to be affected. It does not happen with Fedora 22. There are two workarounds that help for some people: 1. boot with "processor.max_cstate=0 intel_idle.max_cstate=0 idle=poll" 2. Disable speedstep in the bios Both don't work for me. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1509764/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp