I might find the root cause. It's not from linux-firmware, but from upstream stable update patch which is included in 6.14.0-17.17.
Here is the test kernel, you need to disable secure boot from BIOS to boot from it. https://people.canonical.com/~acelan/bugs/lp2115860/ Please try and see if it also works for you, thanks. commit 21a0fc2c7458c7a28100b69f612df779c4efb20f Author: Paul E. McKenney <paul...@kernel.org> Date: Tue Feb 25 10:33:28 2025 -0800 Flush console log from kernel_power_off() BugLink: https://bugs.launchpad.net/bugs/2108854 [ Upstream commit 6ea9a1781c70a8be1fcdc49134fc1bf4baba8bca ] Kernels built with CONFIG_PREEMPT_RT=y can lose significant console output and shutdown time, which hides shutdown-time RCU issues from rcutorture. Therefore, make pr_flush() public and invoke it after then last print in kernel_power_off(). [ paulmck: Apply John Ogness feedback. ] [ paulmck: Appy Sebastian Andrzej Siewior feedback. ] [ paulmck: Apply kernel test robot feedback. ] Signed-off-by: Paul E. McKenney <paul...@kernel.org> Reviewed-by: John Ogness <john.ogn...@linutronix.de> Reviewed-by: Petr Mladek <pmla...@suse.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Sergey Senozhatsky <senozhat...@chromium.org> Link: https://lore.kernel.org/r/5f743488-dc2a-4f19-bdda-cf50b9314832@paulmck-laptop Signed-off-by: Boqun Feng <boqun.f...@gmail.com> Signed-off-by: Sasha Levin <sas...@kernel.org> Signed-off-by: Manuel Diewald <manuel.diew...@canonical.com> Signed-off-by: Stefan Bader <stefan.ba...@canonical.com> -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2115860 Title: poweroff not working after upgrading linux-firmware To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/2115860/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
