On Mon, Oct 29, 2007 at 01:50:14PM -0400, Dave Jones wrote: > We've had a number of people reporting that their x86-64s stopped booting > when they moved to 2.6.23. It rebooted just after discovering the AGP bridge > as a result of the IOMMU init. > > Martin tracked this down to the following commit. > > > commit 2e1c49db4c640b35df13889b86b9d62215ade4b6 > Author: Zou Nan hai <[EMAIL PROTECTED]> > Date: Fri Jun 1 00:46:28 2007 -0700 > > x86_64: allocate sparsemem memmap above 4G > > On systems with huge amount of physical memory, VFS cache and memory > memmap > may eat all available system memory under 4G, then the system may fail to > allocate swiotlb bounce buffer. > > There was a fix for this issue in arch/x86_64/mm/numa.c, but that fix dose > not cover sparsemem model. > > This patch add fix to sparsemem model by first try to allocate memmap > above > 4G. > > Signed-off-by: Zou Nan hai <[EMAIL PROTECTED]> > Acked-by: Suresh Siddha <[EMAIL PROTECTED]> > Cc: Andi Kleen <[EMAIL PROTECTED]> > Cc: <[EMAIL PROTECTED]> > Signed-off-by: Andrew Morton <[EMAIL PROTECTED]> > Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]> > > > This should be probably be reverted for 2.6.23-stable, and either fixed > properly in .24, or reverted there too.
I'll be glad to revert it in -stable, if it's also reverted in Linus's tree first :) thanks, greg k-h - 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/
