On 09/10/2014 07:31 AM, Andrey Ryabinin wrote: > This patch add arch specific code for kernel address sanitizer. > > 16TB of virtual addressed used for shadow memory. > It's located in range [0xffff800000000000 - 0xffff900000000000] > Therefore PAGE_OFFSET has to be changed from 0xffff880000000000 > to 0xffff900000000000. NAK on this. 0xffff880000000000 is the lowest usable address because we have agreed to leave 0xffff800000000000-0xffff880000000000 for the hypervisor or other non-OS uses. Bumping PAGE_OFFSET seems needlessly messy, why not just designate a zone higher up in memory? -hpa -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>