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

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Date:	Tue, 26 Sep 2006 17:47:09 +0200
From:	Andi Kleen <ak@...e.de>
To:	OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
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

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.

-Andi
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