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On Mon, 2005-10-17 at 12:26 -0700, Ravikiran G Thirumalai wrote: > This memory only node has a node id? Then how about a patch which iterates over > nodes in swiotlb.c, trying to allocate DMA'ble memory from node 0 and above > until it gets proper memory for swiotlb? > > Would that be accepatble? I can quickly make a patch for that if it is > acceptable.. Yes, the memory-only node is just another node. Iterating over all nodes sounds a little brute force, but I guess it should work. FWIW, here's the results of the previous one-liner on an HP Superdome (booting w/ machvec=dig to use the swiotlb instead of hardware iotlb): 2.6.14-rc4-mm1, before patch: Placing software IO TLB between 0x4cdc000 - 0x8cdc000 after patch: Placing software IO TLB between 0x74104e6b200 - 0x74108e6b200 Thanks, Alex -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||
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