On Mon, 12 Mar 2007 18:23:22 -0400 Mark Lord <liml@xxxxxx> wrote: > Alan Cox wrote: > > On Mon, 12 Mar 2007 15:08:19 -0400 > > Mark Lord <liml@xxxxxx> wrote: > > > >> The READ/WRITE LONG commands are theoretically obsolete, > >> but the majority of drives in existance still implement them. > >> > >> The WRITE_LONG and WRITE_LONG_ONCE commands are of particular > >> interest for fault injection testing -- eg. creating "media errors" > >> at specific locations on a disk. > > > > Do you still get hangs with ata_piix if you use R/W LONG and these > > changes ? > > Err.. I *never* got hangs with ata_piix and these patches. > Either that, or the Alzheimer's is getting worse. ;) Umm... someone reported originally getting problems with R/W LONG and PIIX but not AHCI and we discussed whether we might need to turn the prefetch/postwrite off for it. Would have been about October last year. If it works ok then I'll just cross it off the list 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
