On Fri, Jan 28 2005, Kasper Sandberg wrote: > On Mon, 2005-01-24 at 23:48 +0000, Alan Cox wrote: > > On Llu, 2005-01-24 at 23:01, Kasper Sandberg wrote: > > > > there are certainly chipset and CPU errata in this area. > > > would this mean that i should not use cpu frequency scaling? > > > > Worth an experiment but I'd be suprised if it was your fix. The more > > data the better however > I disabled cpufreq in the kernel, acpi i still have in kernel.. when i > booted i did acpi=off, and changed IO scheduler to anticipatory > i just burned a DVD, and it works ;D pretty neat, im not sure what > caused it. but im glad.. i still have the small change in scsi_ioctl.h, > however nothing appears in dmesg.. gonna burn one more dvd in a little > bit, if it doesent work, i will let you know, if you dont hear more > about it, assume it works :DD > > btw: the reason i changed to anticipatory from cfq is that i noticed > that sometimes the speed dropped abit, and thought it might have > something to do with it, and, with as it did not
That's interesting, a short io starvation could for sure cause it. I would really appreciate if you could try one change at the time though, right now it's not really clear if it's acpi or the io scheduler. -- Jens Axboe - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
