Public bug reported: == Comment: #0 - SEETEENA THOUFEEK <[email protected]> - 2024-08-02 03:11:31 == +++ This bug was initially created as a clone of Bug #206083 +++
---Problem Description--- kexec fails in LPAR when some cpus are disabled Contact Information = [email protected] Machine Type = na ---uname output--- na ---Debugger--- A debugger is not configured ---Steps to Reproduce--- Summary: At L1 level, kexec fails if some of the cpus in the machine are disabled. Distros and kernel versions used: 1. Distro versions used a. L1 LPAR : b. L2 : Repro steps: 1. Boot into an L1 lpar 2. Disable some cpus (eg: ppc64_cpu --cores-on=3) 3. Try to kexec. This bug is reproducible only when we load the target kernel/initrd and use "kexec -e" as follows: kexec -l --initrd initramfs-$(uname -r).img vmlinuz-$(uname -r) --append="$(cat /proc/cmdline)" kexec -e kexec works fine if we do a normal kexec without skipping the shutdown path kexec --initrd initramfs-$(uname -r).img vmlinuz-$(uname -r) --append="$(cat /proc/cmdline)" Fix is upstream now: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id=21a741eb75f80397e5f7d3739e24d7d75e619011 Thanks, Sourabh Jain please include in Ubuntu Oops output: no Stack trace output: no System Dump Info: The system is not configured to capture a system dump. *Additional Instructions for [email protected]: -Attach sysctl -a output output to the bug. ** Affects: ubuntu-power-systems Importance: Undecided Status: New ** Affects: linux (Ubuntu) Importance: Undecided Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) Status: New ** Tags: architecture-ppc64le bugnameltc-208048 severity-high targetmilestone-inin--- ** Tags added: architecture-ppc64le bugnameltc-208048 severity-high targetmilestone-inin--- ** Changed in: ubuntu Assignee: (unassigned) => Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) ** Package changed: ubuntu => kernel-package (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2075575 Title: kexec fails in LPAR when some cpus are disabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/2075575/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
