Re: [EXT] Re: [Intel-wired-lan] Intel I350 regression 5.10 -> 5.14 ("The NVM Checksum Is Not Valid") [8086:1521]

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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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