On Sat, Sep 30 2006, Alan Cox wrote: > Ar Sad, 2006-09-30 am 20:04 +0200, ysgrifennodd Jens Axboe: > > On Sat, Sep 30 2006, Tejun Heo wrote: > > > Turn off NCQ if queue depth is adjusted to 1. > > > > I had thought of that too but discarded it - it would be nicer to have > > an independent way of turning off NCQ. Say you are debugging a weird FIS > > issue, NCQ depth 1 is still a different beast to non-NCQ. I see Jeff > > already applied the patches, but just thought I'd voice my opinion. > > I've got a blacklist for NCQ in my work tree but really we need the > vendors to help fill it. So far it has some raptors in it but I am sure > there are more, and I am sure there are cases we should be advising > newer firmware or just tweaking our queue sizes etc. Lots of the older Maxtors are pretty crappy for NCQ, so those too. Queue size tweaks fixed them for me (as low as 4, and I can't say for sure if it fixes all crashes). -- Jens Axboe - 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
