[+cc sound folks] On Wed, Dec 28, 2022 at 06:02:48AM -0600, Bjorn Helgaas wrote: > On Wed, Dec 28, 2022 at 08:37:52AM +0000, bugzilla-daemon@xxxxxxxxxx wrote: > > https://bugzilla.kernel.org/show_bug.cgi?id=216859 > > > Summary: PCI bridge to bus boot hang at enumeration > > Kernel Version: 6.1-rc1 > > ... > > > With Kernel 6.1-rc1 the enumeration process stopped working for me, > > see attachments. > > > > The enumeration works fine with Kernel 6.0 and below. > > > > Same problem still exists with v6.1. and v6.2.-rc1 > > Thank you very much for your report, Zeno! > > v6.0 works, v6.1-rc1 fails. Would you mind booting v6.1-rc1 with the > "ignore_loglevel initcall_debug" kernel parameters and taking a photo > when it hangs? > > How did you conclude that the hang is related to a PCI bridge? I see > recent PCI messages in the photo, but it looks like the last message > is from NFS, so I'm wondering if I'm missing some context. The v6.0 > dmesg shows several other ntfs, fuse, JFS, etc messages before more > PCI-related things. Anyway, the "initcall_debug" might help us narrow > it down a bit. Thanks very much for the bisection (complete log at [1])! The bisection claims the first bad commit is: 833477fce7a1 ("Merge tag 'sound-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound") with parents: 7e6739b9336e ("Merge tag 'drm-next-2022-10-05' of git://anongit.freedesktop.org/drm/drm") 86a4d29e7554 ("Merge tag 'asoc-v6.1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus") Both 7e6739b9336e and 86a4d29e7554 tested "good" during the bisection. There is a minor conflict when merging 86a4d29e7554 into the upstream, but I can't imagine that being resolved incorrectly. Would you mind turning off CONFIG_SOUND in your .config and testing 833477fce7a1 again? I'm a little skeptical that the hang would be sound-related, but I guess it's a place to start. Bjorn [1] https://bugzilla.kernel.org/show_bug.cgi?id=216859#c35
