netdev - Re: [BUG] net, pci: 6.3-rc1-4 hangs during boot on PowerEdge R620 with igb

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Message-ID: <CAL_Jsq+nLP6rh3pdK3-5a8-mjR=dF48i-Z8d8u7N=fuYoCk92A@mail.gmail.com>
Date:   Tue, 11 Apr 2023 14:02:03 -0500
From:   Rob Herring <robh@...nel.org>
To:     Donald Hunter <donald.hunter@...il.com>,
        Bjorn Helgaas <helgaas@...nel.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
        Bjorn Helgaas <bhelgaas@...gle.com>, netdev@...r.kernel.org,
        Jesse Brandeburg <jesse.brandeburg@...el.com>,
        Tony Nguyen <anthony.l.nguyen@...el.com>
Subject: Re: [BUG] net, pci: 6.3-rc1-4 hangs during boot on PowerEdge R620
 with igb

+Rafael, Andy

On Tue, Apr 11, 2023 at 7:53 AM Donald Hunter <donald.hunter@...il.com> wrote:
>
> Bjorn Helgaas <helgaas@...nel.org> writes:
>
> > On Mon, Apr 10, 2023 at 04:10:54PM +0100, Donald Hunter wrote:
> >> On Sun, 2 Apr 2023 at 23:55, Bjorn Helgaas <helgaas@...nel.org> wrote:
> >> > On Sat, Apr 01, 2023 at 01:52:25PM +0100, Donald Hunter wrote:
> >> > > On Fri, 31 Mar 2023 at 20:42, Bjorn Helgaas <helgaas@...nel.org> wrote:
> >> > > >
> >> > > > I assume this igb NIC (07:00.0) must be built-in (not a plug-in card)
> >> > > > because it apparently has an ACPI firmware node, and there's something
> >> > > > we don't expect about its status?
> >> > >
> >> > > Yes they are built-in, to my knowledge.
> >> > >
> >> > > > Hopefully Rob will look at this.  If I were looking, I would be
> >> > > > interested in acpidump to see what's in the DSDT.
> >> > >
> >> > > I can get an acpidump. Is there a preferred way to share the files, or just
> >> > > an email attachment?
> >> >
> >> > I think by default acpidump produces ASCII that can be directly
> >> > included in email.  http://vger.kernel.org/majordomo-info.html says
> >> > 100K is the limit for vger mailing lists.  Or you could open a report
> >> > at https://bugzilla.kernel.org and attach it there, maybe along with a
> >> > complete dmesg log and "sudo lspci -vv" output.
> >>
> >> Apologies for the delay, I was unable to access the machine while travelling.
> >>
> >> https://bugzilla.kernel.org/show_bug.cgi?id=217317
> >
> > Thanks for that!  Can you boot a kernel with 6fffbc7ae137 reverted
> > with this in the kernel parameters:
> >
> >   dyndbg="file drivers/acpi/* +p"
> >
> > and collect the entire dmesg log?
>
> Added to the bugzilla report.

Rafael, Andy, Any ideas why fwnode_device_is_available() would return
false for a built-in PCI device with a ACPI device entry? The only
thing I see in the log is it looks like the parent PCI bridge/bus
doesn't have ACPI device entry (based on "[    0.913389] pci_bus
0000:07: No ACPI support"). For DT, if the parent doesn't have a node,
then the child can't. Not sure on ACPI.

Rob