Messages in this thread | | | From | Andi Kleen <> | Subject | Re: [discuss] Re: Please pull x86-64 bug fixes | Date | Mon, 16 Oct 2006 14:21:25 +0200 |
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On Friday 06 October 2006 13:14, Alan Cox wrote: > Ar Iau, 2006-10-05 am 23:44 +0200, ysgrifennodd Andi Kleen: > > I think we had that argument before. IMHO such messages are completely > > useless. Hangs are not acceptable no matter what messages are printed > > before. > > Oh so you plan to fix the iommu/aacraid problem you always said you > wouldn't fix ?
They don't cause hangs, just IO errors (or panics if you configure iommu debugging)
Actually I plan to fix this one, but it will require more work. Basically the plan is to make the current dma zone variable sized and get rid of all GFP_DMA allocations. Merge the current soft iommu with that new dma allocator. Then make sure all allocations that need such low dma use a mask argument to some allocator.
Then we can have a option to configure the size of the dma low zone. Users of broken hardware just configure a larger size.
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