I can confirm this regression on Ali (Uli) M1575 south bridge too. The "pata_ali" workaround just prevented system hangs on Intrepid, in my case. I'm currently running Jaunty and I don't need the pata_ali workaround anymore, but I'm still getting unacceptable speeds, DMA or not. I even tried upgrading the kernel at no avail. Please, take a look at these related bugs:
https://bugs.launchpad.net/ubuntu/+bug/292142 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/31709 I'm very unhappy knowing that I will have these issues on Karmic stable too, but I'm attaching some outputs anyway, hoping to help finally fixing this bug. If you need more info, please just tell me. ~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 9.04 Release: 9.04 Codename: jaunty ~$ uname -a Linux ubuntu 2.6.31-020631-generic #020631 SMP Thu Sep 10 22:34:46 UTC 2009 i686 GNU/Linux ** Attachment added: "dmesg |grep ata" http://launchpadlibrarian.net/32654583/dmesg -- No DMA for DVD-burner on ULi 1695 chipset https://bugs.launchpad.net/bugs/328053 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
