> Any memory over 1GB is bounce-buffered, but we don't use that memory > for anything other than process data pages or file cache, so only > swapping and disk IO to regular files gets the extra copy. In > particular, things like network buffers are still all kept in the low > 1GB so never need to be buffered. [Venkatesh Ramamurthy] If anything over 1GB is bounce buffered than what is the purpose of setting the pci_dev->dma_mask field. On a IA32 system we set it to 32 1's and IA64 to 64 1's - Venkat > > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
- Re: Confirmation request about new 2.4.x. kernel limi... Anton Blanchard
- Re: Confirmation request about new 2.4.x. kernel limi... Pavel Machek
- Re: Confirmation request about new 2.4.x. kernel... Stephen C. Tweedie
- RE: Confirmation request about new 2.4.x. kernel limi... Venkatesh Ramamurthy
- Re: Confirmation request about new 2.4.x. kernel... Matti Aarnio
- Re: Confirmation request about new 2.4.x. ke... Tim Wright
- Re: Confirmation request about new 2.4.x... Andi Kleen
- Re: Confirmation request about new 2... Tim Wright
- Re: Confirmation request about new 2.4.x... Kurt Garloff
- Re: Confirmation request about new 2.4.x. kernel... Stephen C. Tweedie
- Re: Confirmation request about new 2.4.x. kernel limi... Venkatesh Ramamurthy
- RE: Confirmation request about new 2.4.x. kernel limi... Venkatesh Ramamurthy
- RE: Confirmation request about new 2.4.x. kernel limi... Venkatesh Ramamurthy