linux-kernel - Re: [PATCH 2/2] PCI: Only enable realloc auto when root bus has 64bit mmio

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Message-ID: <5424592F.5070801@canonical.com>
Date:	Thu, 25 Sep 2014 14:04:31 -0400
From:	Joseph Salisbury <joseph.salisbury@...onical.com>
To:	Bjorn Helgaas <bhelgaas@...gle.com>
CC:	Yinghai Lu <yinghai@...nel.org>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"stable@...r.kernel.org" <stable@...r.kernel.org>
Subject: Re: [PATCH 2/2] PCI: Only enable realloc auto when root bus has 64bit
 mmio

On 09/25/2014 12:04 PM, Bjorn Helgaas wrote:
> On Thu, Sep 25, 2014 at 9:49 AM, Joseph Salisbury
> <joseph.salisbury@...onical.com> wrote:
>> On 09/16/2014 06:27 PM, Yinghai Lu wrote:
>>> On Tue, Sep 16, 2014 at 1:21 PM, Joseph Salisbury
>>> <joseph.salisbury@...onical.com> wrote:
>>>> A new bug[0] was opened due to enabling PCI_REALLOC_ENABLE_AUTO, which
>>>> is similar to the original bug[1] we discussed.
>>>>
>>>> Just wondering if there have been any additional ideas on realloc since
>>>> this was last discussed?
>>>>
>>>> [0] http://pad.lv/1363313
>>>> [1] http://pad.lv/1245938
> As a side-note, this looks like a regression and I should have given
> it more attention, but I don't track all the vendor bug databases.  If
> you open a kernel.bug bugzilla and mark it as a regression, I *do*
> track that regularly.  For regressions, it's helpful if you can attach
> dmesg logs from working and non-working kernels that are as close
> together as possible.  It'd be ideal if those were upstream kernels,
> but I doubt you apply any patches that would be relevant, so I think
> logs from Ubuntu kernels would be enough.
>
> Bjorn

Thanks, Bjorn.  I'll open a bugzilla bug and ask the bug reporters for
the requested dmesg data.  Thanks again for the feedback.

Joe
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