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DateSat, 7 Feb 2004 22:34:47 -0800
FromMike Fedyk <>
SubjectRe: USB 2.0 mass storage problem
On Sun, Feb 08, 2004 at 02:11:23PM +0800, Francis, Chong Chan Fai wrote:
> Hi,
> 
> I have my laptop installed with Fedora Core (Kernel 2.4.22), and I want to
> use a USB 2.0 120G hard drive via a Cardbus USB2.0 adaptor.
> I plug the Cardbus card, and then the USB2.0 HD, (after a few config) linux
> recognize my HD and I can use mount /dev/sda1 /mnt/extra to mount it.
> 
> HOWEVER, the disk fail after a few read or write operation. From error log:
> Feb  8 12:57:15 wind kernel: SCSI device sda: 234441648 512-byte hdwr
> sectors (120034 MB) Feb  8 12:57:15 wind kernel: sda: assuming drive cache:
> write through Feb  8 12:57:16 wind kernel:  sda: sda1 sda2 < sda5 > Feb  8
> 12:57:16 wind kernel: Attached scsi disk sda at scsi0, channel 0, id 0, lun
> 0 Feb  8 12:57:16 wind kernel: EXT2-fs warning: mounting unchecked fs,
> running e2fsck is recommended Feb  8 13:13:40 wind kernel: SCSI error : <0 0
> 0 0> return code = 0x6000000 Feb  8 13:13:40 wind kernel: end_request: I/O
> error, dev sda, sector 76276607 Feb  8 13:15:30 wind kernel: SCSI error : <0
> 0 0 0> return code = 0x6000000 Feb  8 13:15:30 wind kernel: end_request: I/O
> error, dev sda, sector 76276615

Probably a problem with pcmcia.

I've used a usb 2.0 pci card, but the cpu usage is so high that it's just as
fast as the same card using the uhci-hcd driver -- and uhci uses *much*
less cpu.

This is with 2.6.1-bk2.
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