lkml.org 
[lkml]   [2009]   [Jun]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [stable] [PATCH] x86, setup (2.6.30-stable) fix 80x34 and 80x60 console modes
Greg KH wrote:
> On Mon, Jun 29, 2009 at 06:27:40PM -0700, H. Peter Anvin wrote:
>> Marc Aurele La France wrote:
>>> As coded, most INT10 calls in video-vga.c allow the compiler to assume EAX
>>> remains unchanged across them, which is not always the case. This
>>> triggers an optimisation issue that causes vga_set_vertical_end() to be
>>> called with an incorrect number of scanlines. Fix this by beefing up the
>>> asm constraints on these calls.
>>>
>>> Reported-by: Marc Aurele La France <tsi@xfree86.org>
>>> Signed-off-by: Marc Aurele La France <tsi@xfree86.org>
>>> Acked-by: H. Peter Anvin <hpa@zytor.com>
>> Note: this is not in upstream since upstream is not affected due to the
>> new "BIOS glovebox" subsystem.
>
> So it is a ".30 only" type patch? Any older kernel versions affected?
>

Yes, all the way back to .23 or something like that.

-hpa


\
 
 \ /
  Last update: 2009-06-30 08:37    [from the cache]
©2003-2011 Jasper Spaans