On Tue, Nov 17, 2015 at 10:40:51AM +0000, Chris Wilson wrote: > We have varied reports of swizzling corruption on gen4 desktop, and > confirmation that it is triggered by uneven memory banks. The > implication is that the swizzling various between the paired channels > and the remainder of memory on the single channel. As the object then > has unpredictable swizzling (it will vary depending on exact page > allocation and may even change during the object's lifetime as the pages > are replaced), we have to report to userspace that the swizzling is > unknown. > > Reported-by: Matti Hämäläinen <ccr@xxxxxxxx> > References: https://bugs.freedesktop.org/show_bug.cgi?id=90725 > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > Cc: Matti Hämäläinen <ccr@xxxxxxxx> > Cc: stable@xxxxxxxxxxxxxxx Tested-by: Matti Hämäläinen <ccr@xxxxxxxx> -Chris -- Chris Wilson, Intel Open Source Technology Centre -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html