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Message-ID: <CADLC3L2ioR8c9oCyeg0t0qc_UeW9VSKqsK++mrrkCOkaMyD9WA@mail.gmail.com>
Date:   Fri, 24 Jul 2020 15:08:05 -0600
From:   Robert Hancock <hancockrwd@...il.com>
To:     Kai-Heng Feng <kai.heng.feng@...onical.com>
Cc:     linux-kernel <linux-kernel@...r.kernel.org>,
        "open list:PCI SUBSYSTEM" <linux-pci@...r.kernel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>
Subject: Re: 5.7 regression: Lots of PCIe AER errors and suspend failure
 without pcie=noaer

On Fri, Jul 24, 2020 at 8:32 AM Kai-Heng Feng
<kai.heng.feng@...onical.com> wrote:
>
> Hi Robert,
>
> > Unfortunately it appears that this ASMedia PCIe-PCI bridge:
> >
> > 02:00.0 PCI bridge [0604]: ASMedia Technology Inc. ASM1083/1085 PCIe
> > to PCI Bridge [1b21:1080] (rev 04)
> >
> > doesn't cope with ASPM properly and causes a bunch of PCIe link
> > errors. (This is in addition to some broken-ness known as far back as
> > 2012 with these ASM1083/1085 chips with regard to PCI interrupts
> > getting stuck, but this ASPM problem causes issues even if no devices
> > are connected to the PCI side of the bridge, as is the case on my
> > system.)
> >
> > Might need a quirk to disable ASPM on this device?
>
> Yes I think it's a great idea to do it.
>
> Can you please file a bug on [1] and we can continue our discussion there.
>
> [1] https://bugzilla.kernel.org

Hi, I created a bug entry earlier as a result of another discussion,
which includes the debug info as well as a proposed patch:
https://bugzilla.kernel.org/show_bug.cgi?id=208667

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