Hi, This one has been around for a while, but it's a pretty serious bug, so if you would push it upstream quickly that would be great. Thanks to Bjorn for spotting it. Cheers, Jes Don't PAGE_SHIFT pointer before handing it to virt_to_page() in xlate_dev_kmem_ptr() as it results in a double shift. Spotted by Bjorn 'Eagleeye' Helgaas. Signed-off-by: Jes Sorensen <jes@xxxxxxx> --- include/asm-ia64/uaccess.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: linux-2.6/include/asm-ia64/uaccess.h =================================================================== --- linux-2.6.orig/include/asm-ia64/uaccess.h +++ linux-2.6/include/asm-ia64/uaccess.h @@ -389,7 +389,7 @@ xlate_dev_kmem_ptr (char * p) struct page *page; char * ptr; - page = virt_to_page((unsigned long)p >> PAGE_SHIFT); + page = virt_to_page((unsigned long)p); if (PageUncached(page)) ptr = (char *)__pa(p) + __IA64_UNCACHED_OFFSET; else - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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