Hi On Wed, May 12, 2010 at 11:10, Onkar Mahajan <kern.devel@xxxxxxxxx> wrote: > What is a bounce buffer ? Simply said, it's an memory area that acts as temporary place for data stream between certain memory area (likely in high memory zone) and devices such as SCSI or PCI ones. During DMA operation, some of these devices can not address beyond 1 GiB so kernel allocate bounce buffer in low memory zone and copy the data there first. -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
