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 2024599 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 ** Changed in: linux (Ubuntu Jammy) 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/2024599 Title: linux-image-5.15.0-1032-realtime locks up under scheduler test load Status in linux package in Ubuntu: Incomplete Status in linux source package in Jammy: Incomplete Bug description: lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 22.04.2 LTS Release: 22.04 Codename: jammy uname -a Linux jammie-amd64-efi 5.15.0-1032-realtime #35-Ubuntu SMP PREEMPT_RT Tue Jan 24 11:45:03 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux free total used free shared buff/cache available Mem: 4013888 200984 3439012 1204 373892 3744628 Swap: 4014076 0 4014076 Running in a kvm-qemu, 8 cpus, cpu Intel Core Processor (Skylake, IBRS): how to reproduce issue: git clone https://github.com/ColinIanKing/stress-ng sudo apt-get update sudo apt-get build-dep stress-ng sudo apt-get install libeigen3-dev libmpfr-dev libkmod-dev libxxhash-dev libglvnd-dev libgbm-dev cd stress-ng make clean make -j 8 sudo ./stress-ng --class scheduler --all 1 -v --vmstat 1 -t 30m ..wait for all the stressors to get invoked, system becomes unresponsive, can't ^C stress-ng, can't swap consoles on the VM, appears to be hard locked. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2024599/+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