Hello.
John Sigler wrote:
When my system boots, I get several set_drive_speed_status errors.
(Please see attached dmesg output.)
Can someone explain what they mean? How do I get rid of them?
IDE code attempts to autotune PIO mode and fails at that because your
device is too old (or its manufacturer was too lazy) to support ATA-2 (or EIDE
from marketing PoV) is its full glory.
Is there something I need to set in the config? or something I should
not have set?
No, it just means that the IDE code is *too young* to support such
pre-EIDE devices. :-D
Bonus question: is there some way to turn on DMA for hda?
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
VP_IDE: IDE controller at PCI slot 0000:00:07.1
VP_IDE: chipset revision 6
VP_IDE: not 100% native mode: will probe irqs later
VP_IDE: VIA vt82c686b (rev 40) IDE UDMA100 controller on pci0000:00:07.1
ide0: BM-DMA at 0xd000-0xd007, BIOS settings: hda:pio, hdb:pio
ide1: BM-DMA at 0xd008-0xd00f, BIOS settings: hdc:pio, hdd:pio
Probing IDE interface ide0...
hda: PQI IDE DiskOnModule, ATA DISK drive
hda: set_drive_speed_status: status=0x51 { DriveReady SeekComplete Error }
hda: set_drive_speed_status: error=0x04 { DriveStatusError }
hda: set_drive_speed_status: status=0x51 { DriveReady SeekComplete Error }
hda: set_drive_speed_status: error=0x04 { DriveStatusError }
That means that you've managed to find pre-EIDE/ATA hardware which doesn't
support setting arbitrary PIO modes. What's funny is that resently being
discussed here, so expect a patch RSN. :-)
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Probing IDE interface ide1...
hda: max request size: 128KiB
hda: 128000 sectors (65 MB) w/1KiB Cache, CHS=500/8/32
hda: hda1 hda2
# hdparm -v /dev/hda
/dev/hda:
multcount = 0 (off)
IO_support = 1 (32-bit)
unmaskirq = 1 (on)
using_dma = 0 (off)
keepsettings = 0 (off)
readonly = 0 (off)
readahead = 256 (on)
geometry = 500/8/32, sectors = 128000, start = 0
Oh, interesting geometery, and the size too. :-)
# hdparm -I /dev/hda
/dev/hda:
ATA device, with non-removable media
Model Number: PQI IDE DiskOnModule
That explains it. :-)
Serial Number: DOM6B00011677
Firmware Revision: ra03.00e
Standards:
Likely used: 1
Configuration:
hard sectored
not MFM encoded
head switch time > 15us
fixed drive
disk xfer rate > 5Mbs
Logical max current
cylinders 500 500
heads 8 8
sectors/track 32 32
--
bytes/track: 0 bytes/sector: 528
CHS current addressable sectors: 128000
LBA user addressable sectors: 128000
device size with M = 1024*1024: 62 MBytes
device size with M = 1000*1000: 65 MBytes
Capabilities:
LBA, IORDY not likely
Buffer type: 0002: dual port, multi-sector
Buffer size: 1.0kB bytes avail on r/w long: 4
Cannot perform double-word IO
That's generally not the device task (although there probably were IDE
devices with 32-bit data bus?.. :-O
R/W multiple sector transfer: Max = 1 Current = 0
DMA: not supported
PIO: pio0 pio1 pio2
[the rest of logs didn't show anything particurarly interesting]
MBR, Sergei
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