Arch Linux

Description:UDMA rated CF/IDE adapter utilized to enter Faunos "Live" flash drive having UDMA 5 capability. Dmesg reveals that UDMA 2 mode was set due to "40-wire" cable. 80-wire cable is installed and proper interface connections verified in the adapter/cable interface by inspection. Googling the internet reveals this problem exists in other linux OS and libata is found to be the problem.

The solution that has been employed to correct this problem is provided in the following URL:

linux-ide@vger.kernel.org/msg14722.html"> http://www.mail-archive.com/linux-ide@vger.kernel.org/msg14722.html

Pertinent dmesg data follows:

ata_piix 0000:00:1f.1: version 2.12
ACPI: PCI Interrupt 0000:00:1f.1[A] -> GSI 18 (level, low) -> IRQ 18
PCI: Setting latency timer of device 0000:00:1f.1 to 64
scsi0 : ata_piix
scsi1 : ata_piix
ata1: PATA max UDMA/133 cmd 0x000101f0 ctl 0x000103f6 bmdma 0x0001f000 irq 14
ata2: PATA max UDMA/133 cmd 0x00010170 ctl 0x00010376 bmdma 0x0001f008 irq 15
usb 5-5: new high speed USB device using ehci_hcd and address 2
ata1.00: CFA: LEXAR ATA FLASH CARD, 20070228, max UDMA/100
ata1.00: 7831152 sectors, multi 0: LBA
ata1.00: limited to UDMA/33 due to 40-wire cable
ata1.00: configured for UDMA/33
usb 5-5: configuration #1 chosen from 1 choice
scsi 0:0:0:0: Direct-Access ATA LEXAR ATA FLASH 2007 PQ: 0 ANSI: 5
hub 5-5:1.0: USB hub found
hub 5-5:1.0: 4 ports detected NOTE: CFA is compact flash adapter UDMA 5

Faunos is based on archlinux and Larch elements.

This is not a strict archlinux bug unless a "Live" flash drive version of archlinux is involved but it seems it would give the same answer.

Kernel version 2.6.23 X86

Result in two computers was identical.




Additional info:
* package version(s)
* config and/or log files etc.


Steps to reproduce:See the referenced URL for other examples. Perhaps a patch can be established.