[Bug 209833] New: BAR error updating

[Bjorn Helgaas]

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Date: Fri, 23 Oct 2020 17:17:28 +0000
From: bugzilla-daemon at bugzilla.kernel.org
To: bjorn at helgaas.com
Subject: [Bug 209833] New: BAR error updating
Message-ID: <bug-209833-41252 at https.bugzilla.kernel.org/>

https://bugzilla.kernel.org/show_bug.cgi?id=209833

            Bug ID: 209833
           Summary: BAR error updating
           Product: Drivers
           Version: 2.5
    Kernel Version: 5.5.19 - 5.9.1
          Hardware: ARM
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: high
          Priority: P1
         Component: PCI
          Assignee: drivers_pci at kernel-bugs.osdl.org
          Reporter: vtolkm at googlemail.com
        Regression: No

Created attachment 293153
  --> https://bugzilla.kernel.org/attachment.cgi?id=293153&action=edit
accumulated kernel log messages

device: Turris Omnia (armv7l)

lspci >
00:01.0 PCI bridge: Marvell Technology Group Ltd. Device 6820 (rev 04)
00:02.0 PCI bridge: Marvell Technology Group Ltd. Device 6820 (rev 04)
00:03.0 PCI bridge: Marvell Technology Group Ltd. Device 6820 (rev 04)
02:00.0 Network controller: Qualcomm Atheros QCA986x/988x 802.11ac Wireless
Network Adapter (rev ff)
03:00.0 Network controller: Qualcomm Atheros AR9287 Wireless Network Adapter
(PCI-Express) (rev 01)

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Since kernel 5.5.x this error exhibits:

BAR 0: error updating

It appears to be a regression from 5.4 where the error does not exhibits -
enclosed accumulated kernel logs. 

It may or may not cause issues for the atheros drivers as mentioned in bug
209751.

I have tried to narrow it further down to a particular commit from the 5.5
branch but unfortunately the kernel does not compile then.

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