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
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https://bugs.launchpad.net/bugs/1901718
Title:
System hangs (freezes) randomly without intel_idle.max_cstate=1
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