Yan Seiner wrote:
I'm running into the same issue reported here:
<http://readlist.com/lists/vger.kernel.org/linux-kernel/72/361184.html>
I am using the ata_piix module. If I read the docs correctly, I should
be able to use ahci as well; I need to rebuild the kernel though (debian
insists on putting ata_piix into the initrd....)
dionysus:~# ls -l /sys/block/sd[abcde]/device/queue_depth
-r--r--r-- 1 root root 4096 2007-09-01 06:00
/sys/block/sda/device/queue_depth
-r--r--r-- 1 root root 4096 2007-09-01 06:00
/sys/block/sdb/device/queue_depth
-r--r--r-- 1 root root 4096 2007-09-01 06:00
/sys/block/sdc/device/queue_depth
-r--r--r-- 1 root root 4096 2007-09-01 06:00
/sys/block/sdd/device/queue_depth
-r--r--r-- 1 root root 4096 2007-09-01 06:00
/sys/block/sde/device/queue_depth
If I change the perms to rw, I get an Input/Output error. AFAICT, the
drives support queueing, but it's disabled.
ata_piix does not support NCQ. You have to use AHCI mode for that.
--
Robert Hancock Saskatoon, SK, Canada
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Home Page: http://www.roberthancock.com/
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