[Bug 110636] Re: hdparm - cannot set dma on IDE hard drive that works via pata
tatu at tajuma.com
Sun Feb 17 19:44:59 UTC 2008
I had the same problem, performance sucked, disks went from sdaX to
hdaX, audio playback was lousy, etc.
I was able to fix it by adding hda=noprobe into kernel boot parameters.
So I changed my /boot/grub/menu.lst kernel line from (only relevant
kernel /boot/vmlinuz-18.104.22.168 root=/dev/hda5
to (note hda5 => sda5)
kernel /boot/vmlinuz-22.214.171.124 hda=noprobe hdb=noprobe
This way eide stays away from drives and lets the sata found them later.
Naturally you should adjust your kernel name, root and drives based on
what you have.
With this change hdparm -t went from 2,8 MB/s to 59 MB/s. And audio
plays uninterrupted even with lots of disk access. And disks are called
hdparm - cannot set dma on IDE hard drive that works via pata
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