This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1827335 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1827335 Title: Unable to put offline CPU back online on Bionic/B-hwe-edge P9 Status in linux package in Ubuntu: Incomplete Bug description: You will see these CPUs in offline state after boot. ubuntu@baltar:~$ cat /sys/devices/system/cpu/offline 156-159 ubuntu@baltar:~$ echo 1 | sudo tee /sys/devices/system/cpu/cpu156/online 1 tee: /sys/devices/system/cpu/cpu156/online: Invalid argument ubuntu@baltar:~$ echo 1 | sudo tee /sys/devices/system/cpu/cpu157/online 1 tee: /sys/devices/system/cpu/cpu157/online: Invalid argument ubuntu@baltar:~$ echo 1 | sudo tee /sys/devices/system/cpu/cpu158/online 1 tee: /sys/devices/system/cpu/cpu158/online: Invalid argument ubuntu@baltar:~$ echo 1 | sudo tee /sys/devices/system/cpu/cpu159/online 1 tee: /sys/devices/system/cpu/cpu159/online: Invalid argument ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-5.0.0-14-generic 5.0.0-14.15~18.04.1+signed1 ProcVersionSignature: Ubuntu 5.0.0-14.15~18.04.1-generic 5.0.6 Uname: Linux 5.0.0-14-generic ppc64le ApportVersion: 2.20.9-0ubuntu7.6 Architecture: ppc64el Date: Thu May 2 06:46:36 2019 ProcLoadAvg: 0.00 0.00 0.00 1/1298 6496 ProcSwaps: Filename Type Size Used Priority /swap.img file 8388544 0 -2 ProcVersion: Linux version 5.0.0-14-generic (buildd@bos02-ppc64el-014) (gcc version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)) #15~18.04.1-Ubuntu SMP Thu Apr 25 18:55:27 UTC 2019 SourcePackage: linux-signed-hwe-edge UpgradeStatus: No upgrade log present (probably fresh install) VarLogDump_list: total 0 cpu_cores: Number of cores present = 40 cpu_coreson: Number of cores online = 39 cpu_dscr: DSCR is 16 cpu_freq: min: 2.862 GHz (cpu 79) max: 2.945 GHz (cpu 81) avg: 2.903 GHz cpu_runmode: Could not retrieve current diagnostics mode, No kernel interface to firmware cpu_smt: SMT=4 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1827335/+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