Messages in this thread | | | Date | Mon, 29 Jun 2009 18:27:40 -0700 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH] x86, setup (2.6.30-stable) fix 80x34 and 80x60 console modes |
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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
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