On Fri, 2005-01-28 at 14:47 +0100, Jens Axboe wrote: > 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. well.. all good things must come to an end.. the second dvd i burned failed.. :( this is really frustrating.. but im pretty pretty sure its not media error.. perhaps i must reboot after each burn again.. anyway, it is nice knowing everything isnt completely lost :)
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