Hi! > This patch works around the problem by scanning the MTRRs at > boot and figuring out whether the current end_pfn value (setup > by early e820 code) goes beyond the highest WB MTRR range, and > if so, trimming it to match. A fairly obnoxious KERN_WARNING > is printed too, letting the user know that not all of their > memory is available due to a likely BIOS bug.
Way too obnoxious warning, I'd say. Just drop the *s. > + if ((highest_addr >> PAGE_SHIFT) != end_pfn) { > + printk(KERN_WARNING "***************\n"); > + printk(KERN_WARNING "**** WARNING: likely BIOS bug\n"); > + printk(KERN_WARNING "**** MTRRs don't cover all of " > + "memory, trimmed %ld pages\n", end_pfn - > + (highest_addr >> PAGE_SHIFT)); > + printk(KERN_WARNING "***************\n"); > + end_pfn = highest_addr >> PAGE_SHIFT; ...and I'd print lost memory in kilobytes, to be more luser-friendly. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/