From: "H. Peter Anvin" <hpa@zytor.com>
To: Ondrej Zary <linux@rainbow-software.org>
Cc: brgerst@gmail.com,
Kernel development list <linux-kernel@vger.kernel.org>
Subject: Re: 6175ddf06b6172046a329e3abfd9c901a43efd2e breaks matroxfb console
Date: Mon, 02 Aug 2010 14:04:28 -0700 [thread overview]
Message-ID: <4C5732DC.8010800@zytor.com> (raw)
In-Reply-To: <201008022150.01037.linux@rainbow-software.org>
On 08/02/2010 12:49 PM, Ondrej Zary wrote:
> Hello,
> matroxfb (at least with Mystique and Mystique 220) stopped working in 2.6.34 -
> the screen is completely corrupted. Bisection shows that
> 6175ddf06b6172046a329e3abfd9c901a43efd2e is first bad commit.
>
> Reverting 6175ddf06b6172046a329e3abfd9c901a43efd2e in 2.6.34 fixes the problem
> (1c5b9069e12e20d2fe883076ae0bf73966492108 must be reverted first).
>
Sounds like another driver which used memcpy_toio() when it should have
used iowrite32_rep() or __iowrite32_copy().
Hmm... is __iowrite32_copy() and iowrite32_rep() redundant? If so, we
should get rid of the former.
-hpa
next prev parent reply other threads:[~2010-08-02 21:05 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-02 19:49 6175ddf06b6172046a329e3abfd9c901a43efd2e breaks matroxfb console Ondrej Zary
2010-08-02 21:04 ` H. Peter Anvin [this message]
2010-08-02 21:14 ` Ondrej Zary
2010-08-02 21:15 ` H. Peter Anvin
2010-08-02 21:35 ` Ondrej Zary
2010-08-02 21:42 ` H. Peter Anvin
2010-08-03 18:34 ` Ondrej Zary
-- strict thread matches above, loose matches on Subject: below --
2010-08-02 23:53 Chris Rankin
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