On 2010-09-22 00:22, Malahal Naineni wrote: > The bounce_pfn of the request queue in 64 bit systems is set to the > current max_low_pfn. Adding more memory later makes this incorrect. Clearly correct. > Memory allocated beyond this boot time max_low_pfn appear to require > bounce buffers (bounce buffers are actually not allocated but used in > calculating segments that may result in "over max segments limit" > errors). But I can't quite convince myself that the change is fully correct. You don't really explain in your own words what the patch does, just what it fixes. -- Jens Axboe -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel