Fedora Core 6 Test Update: kernel-2.6.22.1-15.fc6

James Hubbard jameshubbard at gmail.com
Thu Jul 19 11:52:10 UTC 2007


On 7/18/07, Dave Jones <davej at redhat.com> wrote:
>
> On Mon, Jul 16, 2007 at 07:41:23PM -0400, James Hubbard wrote:
>
> > Dell M65 laptop with no devices connected.
> >
> > Using  2.6.20-1.2962, my hard drive shows up as sda with buffered disk
> > read of ~49MB/sec.  Under  the .22 kernel it shows up as hda and the
> > buffered read is < 2MB/sec.   (This cause the boot to be very slow.)
>
> This is really odd.
> I have the same laptop, and it consistently pulls 33MB/s under F7's .22
> kernel, and from memory, it was the same result under F6's .20
>
> I don't recall it ever getting near the speeds you mention.
> Under F7 it's using ata_piix.  What driver is yours using,
> and can you paste the output of hdparm -i for that device ?
>

I have the 7200 RPM drive, if I'm not mistaken.  Bios version A07.

2.6.20 :
hdparm -i /dev/sda
/dev/sda:
 HDIO_GET_IDENTITY failed: Inappropriate ioctl for device

22:
hdparm -i /dev/hda
/dev/hda:

 Model=Hitachi HTS721010G9SA00, FwRev=MCZOC10H, SerialNo=MPCZN7Y0H2G6HL
 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
 BuffType=DualPortCache, BuffSize=7538kB, MaxMultSect=16, MultSect=16
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=195371568
 IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio1 pio2 pio3 pio4
 DMA modes:  mdma0 mdma1 mdma2
 UDMA modes: udma0 udma1 udma2
 AdvancedPM=yes: mode=0x80 (128) WriteCache=enabled
 Drive conforms to: ATA/ATAPI-7 T13 1532D revision 1:  ATA/ATAPI-2
ATA/ATAPI-3 A
TA/ATAPI-4 ATA/ATAPI-5 ATA/ATAPI-6 ATA/ATAPI-7

 * signifies the current active mode
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