Messages in this thread | | | Date | Fri, 19 Dec 2003 08:18:00 +0100 | From | bert hubert <> | Subject | Re: HD access sluggish in 2.6.0 |
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On Thu, Dec 18, 2003 at 07:57:05PM -0600, Yun Zhou wrote: > I'm using a system with 1HD (DC WD600BB-00CAA1 60 GB) using kernel 2.6.0. > Whenever the system uses the disk extensively (copying a file, untarring, > etc.), it grinds to a near halt, with the CPU usage at about 100%, even for a > simple copying operation.
Please show the output of hdparm /dev/hda: /dev/hda: multcount = 16 (on) IO_support = 0 (default 16-bit) unmaskirq = 0 (off) using_dma = 1 (on) keepsettings = 0 (off) readonly = 0 (off) readahead = 256 (on) geometry = 65535/16/63, sectors = 117210240, start = 0
You will probably see using_dma = 0 there. This in turn probably means you did not compile in the right IDE driver. Try hdparm -d1 /dev/hda, and/or recompile your kernel.
> This problem is not present when using 2.4.22, nor any of the 2.4 series > kernels that I've tried. Does anyone know what is causing this?
You did not specify any details of your kernel compile so it is hard to tell.
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