I have isolated the cause of this bug to this commit: https://git.launchpad.net/~ubuntu- kernel/ubuntu/+source/linux/+git/noble/commit/?h=Ubuntu-6.8.0-20.20&id=71eb6b6b0ba93b1467bccff57b5de746b09113d2
All versions that I tested before this commit during my bisect passed the aiol test at least 15 times in a row, and all versions after this commit panic during at least one test. To confirm, I reverted this patch on the latest 6.8 Ubuntu kernel (which was previously panicking reliably within 5 tests) and verified that, with that change, it passes the test at least 15x in a row without any panics. The contents of the patch also support this conclusion, as the patch is a change to the Linux AIO interface that introduces new calls to spin_lock_irqsave() and wake_up_process() inside aio_complete(), which corresponds with the content of the traces I have observed. -- 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/2058557 Title: Kernel panic during checkbox stress_ng_test on Grace running noble 6.8 (arm64+largemem) kernel Status in linux package in Ubuntu: New Bug description: A kernel oops and panic occurred during 22.04 SoC certification on Gunyolk (Grace/Grace) with 6.8 kernel, arm64+largemem variant Steps to reproduce: Run (as root) the following commands: add-apt-repository -y ppa:checkbox-dev/stable apt-add-repository -y ppa:firmware-testing-team/ppa-fwts-stable apt update apt install -y canonical-certification-server /usr/lib/checkbox-provider-base/bin/stress_ng_test.py disk --device dm-0 --base-time 240 stress_ng_test caused a kernel panic after about 5 minutes. I have attached dmesg output from my reproducer to this report. Initially, this was identified via a panic during the above test, which was running as part of a run of certify-soc-22.04. Attached is a tarball containing: - apport.linux-image-6.8.0-11-generic-64k.kzsondji.apport: The output of `ubuntu-bug linux` on the machine (after reboot) - reproduced-dmesg.202403201942: The dmesg output captured by kdump when I reproduced my original issue by running only the single stress_ng_test.py command above (not the entire cert suite) - original-dmesg.txt: The dmesg output I captured when the stress_ng_test originally failed during the full cert suite run To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2058557/+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
