Well, I'm not a kernel developer, but that doesn't look good. Looks like it tries a bunch of DMA modes and they all fail and it ends up going back to PIO mode which is the slow cpu-does-everything mode.
I'm not sure if this will make you feel any better, but you could try digging around the libata wiki. E.g.: http://ata.wiki.kernel.org/index.php/Pata_ali Also, I'm not sure how up-to-date this is, but there are also some suggestions here: http://linux-ata.org/faq.html This website also has a little on exactly why there was the change from the old, reliable IDE type drivers that worked and we loved to the new ones that have regressions like this bug. -- DVD playback jerky due to ata_generic module disabling DMA https://bugs.launchpad.net/bugs/175022 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
