linux-kernel - Re: [PATCH] arch/i386/pci/mmconfig.c tlb flush fix

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Message-ID: <87d59izj1m.fsf@duaron.myhome.or.jp>
Date:	Wed, 27 Sep 2006 01:31:17 +0900
From:	OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
To:	Andi Kleen <ak@...e.de>
Cc:	Greg KH <greg@...ah.com>, OGAWA Hirofumi <hogawa@...aclelinux.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arch/i386/pci/mmconfig.c tlb flush fix

Andi Kleen <ak@...e.de> writes:

> On Tuesday 26 September 2006 17:45, OGAWA Hirofumi wrote:
>> Andi Kleen <ak@...e.de> writes:
>> 
>> > OGAWA Hirofumi <hogawa@...aclelinux.com> writes:
>> >> 
>> >> We use the fixmap for accessing pci config space in pci_mmcfg_read/write().
>> >> The problem is in pci_exp_set_dev_base(). It is caching a last
>> >> accessed address to avoid calling set_fixmap_nocache() whenever
>> >> pci_mmcfg_read/write() is used.
>> >
>> >
>> > Good catch. I already had another report of mmconfig corruption on i386,
>> > but didn't have time to look at it yet.
>> >
>> > Will be definitely stable material once it hit mainline.
>> 
>> Indeed.
>> 
>> If I found this in mainline, should I send something like a reminder
>> email with patch to you, Greg?
>
> I have it already queued for both.

Oh, thanks.
-- 
OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
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