> And this call trace looks is related to current issue, I guess snd_power_ref_and_wait was waiting for snd_card_disconnect which wakes up power_sleep at the end of the code, but snd_card_disconnect -> snd_device_disconnect_all -> snd_pcm_dev_disconnect was blocked for some reason.
Yes, interesting. Good spot. > Looks suspend/resume can be completed sometimes. Yes. I think what causes the problem is when I disconnect from my USB dock. After that, I can't suspend until I reboot. Once I reboot, it can suspend again until I once more disconnect the dock. > Could you rebuild kernel with CONFIG_PROVE_LOCKING option to discover locking > related deadlocks? Then upload the log after reproduce the issue by shut down > laptop with the new kernel. Also please attach the output of lsusb given it > could be usb relevant. > > And it also would be helpful to try with latest noble kernel or recent > upstream kernel, thanks. Sure. I'll try an upstream kernel with CONFIG_PROVE_LOCKING. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2061091 Title: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-6.5/+bug/2061091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
