> > 1st) It does not work with memory located in a PCI device. > > Linux cannot perform IO on such memory right now. End of story. It > will in the future: this is just one of a whole raft of related problems > we have due to the backwards-compatible way virt_to_phys works. You also need a blacklist of chipsets, and some work arounds. PCI-PCI DMA is a gigantic can of worms. On some chipsets PCI->PCI DMA just doesnt happen on others it locks up occasionally. - 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/
