On Wednesday 11 August 2010 22:41:36 Andrew Morton wrote: > On Wed, 11 Aug 2010 22:27:42 +0200 > > Ondrej Zary <linux@xxxxxxxxxxxxxxxxxxxx> wrote: > > Fix incorrect use of memcpy_toio() in matroxfb that broke in 2.6.34 on > > x86. > > Thanks. > > What was incorrect about it? And what is the user-visible effect of > this regression? Screen is completely corrupted since 2.6.34. Bisection revealed that it's caused by commit 6175ddf06b6172046a329e3abfd9c901a43efd2e. H. Peter Anvin explained that memcpy_toio() does not copy data in 32bit chunks anymore on x86. See: http://lkml.org/lkml/2010/8/2/409 -- Ondrej Zary -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
