Update: apparently CONFIG_KFENCE can only reduce the probability to trigger the bug, so it's not a reliable fix. According to all the traces that we got the soft lockup is always happening to any SLUB allocation function (__kmalloc, kmem_cache_alloc, and similar), and the instruction pointer is on a static branch call. And static branches are used only by KFENCE in SLUB, hence the test of disabling KFENCE.
** Summary changed: - impish:linux-aws 5.13 panic during systemd autotest + impish:linux 5.13 panic during systemd autotest -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1946001 Title: impish:linux 5.13 panic during systemd autotest To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-release-notes/+bug/1946001/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
