> Tested on ATP865 (1191:0008 rev 07) in a DS101 box (an ARM-based NAS). > Seems to work fine. Its tested fairly hard on several NAS boxes (and still needs a fix for one) > However, I'm gettting consistently lower read throughput with pata_artop > (13-19 MB/s) than with aec62xx (22 MB/s) on an oldish WD drive, and using > pata_artop triggers a WARN_ON(irqs_disabled()) in arch/arm/mm/consistent.c: It would be nice to know why - is the cable detet coming out right on this ? > WARNING: at arch/arm/mm/consistent.c:364 dma_free_coherent() ARM has a problem with dma_free_coherent with IRQ disabled. Unfortunately under high load ARM decides to use dma_free_coherent inside dma_unmap_sg(). This as far as I can see is an ARM problem not a libata problem and one you can duplicate with other drivers under high load. If any ARM people can tell me what is going on and help fix it either in ARM or libata that would be great. Alan - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html