Public bug reported:
It happened like this:
using kernel 3.13.0-144 (14.04) - ok
jun 9: installed kernel 3.13.0-149 and rebooted - ok
jun 21: installed some updates including update to the cpu microcode which was
set up to execute at the next boot
jun 28: rebooted to the same kernel 149 and the system went into cyclic reboot:
shows grub screen, when the default kernel is selected reboots immediately with
no messages and without creating any logs, nothing in /var/log with appropriate
times
booted to 144 - no issues
tried upgrading to a new kernel (151) - same cyclic reboot
booted back to 144
I am not telling the microcode update is the culprit, but it is mighty
suspicious. It cannot be uninstalled using standard tools without
uninstalling the kernels packages (linux-generic, linux-image-generic,
linux-generic-pae, linux-image-generic-pae). I have both intel-microcode
and amd64-microcode installed (CPU is AMD phenom X4 975).
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu8.1
ProcVersionSignature: Ubuntu 3.13.0-144.193-generic 3.13.11-ckt39
Uname: Linux 3.13.0-144-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.29
Architecture: i386
Date: Thu Jun 28 13:04:38 2018
InstallationDate: Installed on 2011-08-18 (2505 days ago)
InstallationMedia: Kubuntu 11.04 "Natty Narwhal" - Release i386 (20110427)
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to trusty on 2014-10-18 (1349 days ago)
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 trusty
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https://bugs.launchpad.net/bugs/1779092
Title:
cyclic reboot with latest kernels possibly related to the cpu
microcode updater
Status in xorg package in Ubuntu:
New
Bug description:
It happened like this:
using kernel 3.13.0-144 (14.04) - ok
jun 9: installed kernel 3.13.0-149 and rebooted - ok
jun 21: installed some updates including update to the cpu microcode which
was set up to execute at the next boot
jun 28: rebooted to the same kernel 149 and the system went into cyclic
reboot: shows grub screen, when the default kernel is selected reboots
immediately with no messages and without creating any logs, nothing in /var/log
with appropriate times
booted to 144 - no issues
tried upgrading to a new kernel (151) - same cyclic reboot
booted back to 144
I am not telling the microcode update is the culprit, but it is mighty
suspicious. It cannot be uninstalled using standard tools without
uninstalling the kernels packages (linux-generic, linux-image-generic,
linux-generic-pae, linux-image-generic-pae). I have both intel-
microcode and amd64-microcode installed (CPU is AMD phenom X4 975).
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu8.1
ProcVersionSignature: Ubuntu 3.13.0-144.193-generic 3.13.11-ckt39
Uname: Linux 3.13.0-144-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.29
Architecture: i386
Date: Thu Jun 28 13:04:38 2018
InstallationDate: Installed on 2011-08-18 (2505 days ago)
InstallationMedia: Kubuntu 11.04 "Natty Narwhal" - Release i386 (20110427)
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to trusty on 2014-10-18 (1349 days ago)
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