Alan Cox writes: > The 343/363 crashes if you write ->ctl with a live DMA outstanding. Now > its easy enough to fix in the driver - just wrap ata_sff_freeze. It > raises an interesting question however - which is should ata_sff_freeze > stop any running DMA in the general case ? FWIW when I added ->freeze and ->thaw to sata_promise I made ->freeze stop in-flight DMAs. As I read the documentation the ATA engine should be completely idle after ->freeze so this seemed appropriate. There was a brief discussion about this at the time, but I don't think we ever agreed on a definitive "precise semantics" for ->freeze. -- 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
