Subject: Fw: [Bug 206583] New: Aquantia NIC Suspend regression

From: Stephen Hemminger <[email-masked]>
Date: Mon, 17 Feb 2020 21:39:22 -0800

Begin forwarded message:

Date: Tue, 18 Feb 2020 05:13:38 +0000
From: [email-masked]
To: [email-masked]
Subject: [Bug 206583] New: Aquantia NIC Suspend regression

https://bugzilla.kernel.org/show_bug.cgi?id=206583

            Bug ID: 206583
           Summary: Aquantia NIC Suspend regression
           Product: Networking
           Version: 2.5
    Kernel Version: 5.5.4
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Other
          Assignee: [email-masked]
          Reporter: [email-masked]
        Regression: No

Created attachment 287451
  --> https://bugzilla.kernel.org/attachment.cgi?id=287451&action=edit  
Kernel Config

When using 5.5 branch kernel my computer wouldn't go into the sleep state any
longer.

Trying to sleep would almost work but the computer never really "turned off",
keeping fans running. Trying to resume from that state was also absolutely
impossible, as it seems the computer didn't get to sleep, hence it was not
possible to wake it.

Bisecting identified 8aaa112a57c1d725c92dfad32c0694bd21b374d0 as the offending
commit, which makes sense as this is "net: atlantic: refactoring pm logic".
This was done directly on vanilla kernel tree.

Not sure how to exactly debug where the issue is in the code, but I can run
other tests as needed.

CPU: ThreadRipper 2950x
MB: Asrock X399 Fatal1ty

possibly relevant boot params
amd_iommu=on iommu=pt nohpet tsc=reliable

config attached if needed.

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