I also would like to inform that there is already a workaround that
worked, but only for the old kernet 2.6.24-19, which was outlined here:
https://bugs.launchpad.net/ubuntu/+bug/195221/comments/38 - maybe you
can tell me how to do this to the new Intrepid kernel?
I am adding some info:
cat /etc/issue
Ubuntu 8.10
uname -a
Linux zelda 2.6.27-7-generic #1 SMP Fri Oct 24 06:42:44 UTC 2008 i686 GNU/Linux
hdparm -tT /dev/sda:
/dev/sda:
Timing cached reads: 434 MB in 2.00 seconds = 216.56 MB/sec
Timing buffered disk reads: 68 MB in 3.06 seconds = 22.20 MB/sec
hdparm -i /dev/sda
/dev/sda:
Model=FUJITSU MHV2080AH , FwRev=00000096, SerialNo=
NT36T5C265B3
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=DualPortCache, BuffSize=8192kB, MaxMultSect=16, MultSect=?16?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=156301488
IORDY=yes, 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 udma3 udma4 udma5
AdvancedPM=yes: mode=0x80 (128) WriteCache=enabled
Drive conforms to: ATA/ATAPI-6 T13 1410D revision 3a: ATA/ATAPI-2,3,4,5,6
lspci
00:00.0 Host bridge: Silicon Integrated Systems [SiS] 650/M650 Host (rev 01)
00:01.0 PCI bridge: Silicon Integrated Systems [SiS] Virtual PCI-to-PCI bridge
(AGP)
00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS961 [MuTIOL Media IO]
00:02.1 SMBus: Silicon Integrated Systems [SiS] SiS961/2 SMBus Controller
00:02.2 USB Controller: Silicon Integrated Systems [SiS] USB 1.1 Controller
(rev 07)
00:02.3 USB Controller: Silicon Integrated Systems [SiS] USB 1.1 Controller
(rev 07)
00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev d0)
00:02.6 Modem: Silicon Integrated Systems [SiS] AC'97 Modem Controller (rev a0)
00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] AC'97
Sound Controller (rev a0)
00:08.0 CardBus bridge: ENE Technology Inc CB1410 Cardbus Controller
01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS]
65x/M650/740 PCI/AGP VGA Display Adapter
A portion of dmesg (full dmesg is attached):
[ 2.820532] scsi0 : pata_sis
[ 2.820971] scsi1 : pata_sis
[ 2.822495] ata1: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0x1100 irq 14
[ 2.822549] ata2: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0x1108 irq 15
[ 2.984633] ata1.00: ATA-6: FUJITSU MHV2080AH, 00000096, max UDMA/100
[ 2.984683] ata1.00: 156301488 sectors, multi 16: LBA
[ 2.984746] ata1.00: limited to UDMA/33 due to 40-wire cable
[ 3.000449] ata1.00: configured for UDMA/33
[ 3.164486] ata2.00: ATAPI: DV-28E-B, 1.2B, max UDMA/33
[ 3.180374] ata2.00: configured for UDMA/33
** Attachment added: "dmesg.txt"
http://launchpadlibrarian.net/19018248/dmesg.txt
--
Intrepid kernel UDMA/33 (slow disk transfer rate)
https://bugs.launchpad.net/bugs/285595
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