Am Dienstag, 12. Oktober 2021, 19:58:47 CEST schrieb Rafael J. Wysocki: > On Tue, Oct 12, 2021 at 7:42 PM Paul Menzel <pmenzel@xxxxxxxxxxxxx> wrote: > > > > [Cc: +ACPI maintainers] > > > > Am 12.10.21 um 18:34 schrieb Andreas K. Huettel: > > >>> The messages easily identifiable are: > > >>> > > >>> huettel@pinacolada ~/tmp $ cat kernel-messages-5.10.59.txt |grep igb > > >>> Oct 5 15:11:18 dilfridge kernel: [ 2.090675] igb: Intel(R) Gigabit Ethernet Network Driver > > >>> Oct 5 15:11:18 dilfridge kernel: [ 2.090676] igb: Copyright (c) 2007-2014 Intel Corporation. > > >>> Oct 5 15:11:18 dilfridge kernel: [ 2.090728] igb 0000:01:00.0: enabling device (0000 -> 0002) > > >> > > >> This line is missing below, it indicates that the kernel couldn't or > > >> didn't power up the PCIe for some reason. We're looking for something > > >> like ACPI or PCI patches (possibly PCI-Power management) to be the > > >> culprit here. > > > > > > So I did a git bisect from linux-v5.10 (good) to linux-v5.14.11 (bad). > > > > > > The result was: > > > > > > dilfridge /usr/src/linux-git # git bisect bad > > > 6381195ad7d06ef979528c7452f3ff93659f86b1 is the first bad commit > > > commit 6381195ad7d06ef979528c7452f3ff93659f86b1 > > > Author: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> > > > Date: Mon May 24 17:26:16 2021 +0200 > > > > > > ACPI: power: Rework turning off unused power resources > > > [...] > > > > > > I tried naive reverting of this commit on top of 5.14.11. That applies nearly cleanly, > > > and after a reboot the additional ethernet interfaces show up with their MAC in the > > > boot messages. > > > > > > (Not knowing how safe that experiment was, I did not go further than single mode and > > > immediately rebooted into 5.10 afterwards.) > > Reverting this is rather not an option, because the code before it was > a one-off fix of an earlier issue, but it should be fixable given some > more information. > > Basically, I need a boot log from both the good and bad cases and the > acpidump output from the affected machine. > https://dev.gentoo.org/~dilfridge/igb/ ^ Should all be here now. 5.10 -> "good" log (the errors are caused by missing support for my i915 graphics and hopefully unrelated) 5.14 -> "bad" log Thank you for looking at this. If you need anything else, just ask. Andreas -- PD Dr. Andreas K. Huettel Institute for Experimental and Applied Physics University of Regensburg 93040 Regensburg Germany e-mail andreas.huettel@xxxxx http://www.akhuettel.de/
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