Public bug reported: Maybe related: https://bugzilla.kernel.org/show_bug.cgi?id=109051
This system has CPU Intel i5-3570k (no overclocking) and the system suffers from random hangs (total freeze with no response to power button, SysRq combinations and nothing in any logs). The hang seems to be related to Google Chrome so it might be related to GPU (intel HD 4000) rendering. Adding intel_idle.max_cstate=1 seems to help a lot. Without this kernel flag, the system did hang randomly between 15 min and a couple of days. With this flag the system has frozen first time today after uptime of 3 weeks. So it seems that this CPU is also affected by issues described in the above linked kernel bug. However, as the system did hang earlier today, even this workaround is not perfect. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-lowlatency-hwe-18.04-edge 5.4.0.52.57~18.04.46 ProcVersionSignature: Ubuntu 5.4.0-52.57~18.04.1-lowlatency 5.4.65 Uname: Linux 5.4.0-52-lowlatency x86_64 ApportVersion: 2.20.9-0ubuntu7.18 Architecture: amd64 CurrentDesktop: MATE Date: Tue Oct 27 16:56:35 2020 EcryptfsInUse: Yes InstallationDate: Installed on 2019-01-05 (660 days ago) InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) SourcePackage: linux-meta-hwe-5.4 UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: linux-meta-hwe-5.4 (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1901718 Title: System hangs (freezes) randomly without intel_idle.max_cstate=1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-meta-hwe-5.4/+bug/1901718/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs