Re: [PATCH] x86, setup (2.6.30-stable) fix 80x34 and 80x60 consolemodes

[H. Peter Anvin]

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@xxxxxxxxxxx>
> Signed-off-by: Marc Aurele La France <tsi@xxxxxxxxxxx>
> Acked-by: H. Peter Anvin <hpa@xxxxxxxxx>

Note: this is not in upstream since upstream is not affected due to the
new "BIOS glovebox" subsystem.

	-hpa
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