Re: Problem with DMA on x86_64 with 3 GB RAM

> If it did like you're recommending a huge number of drivers
> in the tree wouldn't work anymore (just think about what pci_alloc_consistent
> does) 

There are very few drivers who actually request less than 32bit DMA
and those would (and should) fail or be forced to do their own fallbacks.

Alan
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• References:
  • bcm43xx regression 2.6.19rc3 -> rc5, rtnl_lock trouble?
    • From: Ray Lee <[email protected]>
  • Re: Problem with DMA on x86_64 with 3 GB RAM
    • From: Andi Kleen <[email protected]>
  • Re: Problem with DMA on x86_64 with 3 GB RAM
    • From: Alan <[email protected]>
  • Re: Problem with DMA on x86_64 with 3 GB RAM
    • From: Andi Kleen <[email protected]>

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