lkml.org 
[lkml]   [2009]   [Jun]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] x86, setup (2.6.30-stable) fix 80x34 and 80x60 console modes
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.

-hpa


\
 
 \ /
  Last update: 2009-06-30 03:43    [from the cache]
©2003-2011 Jasper Spaans