linux-kernel - Re: [PATCH 1/2] PCI: Prevent 64-bit resources from being counted in 32-bit bridge region

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Date:   Mon, 1 Apr 2019 13:22:54 -0600
From:   Logan Gunthorpe <logang@...tatee.com>
To:     Bjorn Helgaas <bhelgaas@...gle.com>
Cc:     Bjorn Helgaas <helgaas@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux PCI <linux-pci@...r.kernel.org>,
        Kit Chow <kchow@...aio.com>, Yinghai Lu <yinghai@...nel.org>
Subject: Re: [PATCH 1/2] PCI: Prevent 64-bit resources from being counted in
 32-bit bridge region

Hey Bjorn,

On 2019-03-04 1:11 p.m., Bjorn Helgaas wrote:
> On Mon, Mar 4, 2019 at 1:21 PM Logan Gunthorpe <logang@...tatee.com> wrote:
>> On 2019-03-03 5:23 p.m., Bjorn Helgaas wrote:
>>> Sorry for the delay.  This code gives a headache.  I still remember
>>> my headache from the last time we touched it.  Help me understand
>>> what's going on here.
>>
>> Yes, this code gave me a headache debugging it too. And it's not the
>> first time I've tried to figure out what's going on with it because it
>> often just prints noisy messages that look like errors. I think I
>> understand it better now but it's something that's a bit fleeting and
>> easy to forget the details of. There may also be other solutions to this
>> problem.
> 
> Thanks for the explanation below.  I haven't worked through it yet, but I will.

Any chance you've had a chance to go through this issue yet? Is there
anything I should do with it? Do you want me to try to improve the
commit messages and resend the patches?

Thanks,

Logan