On Mon, 25 Apr 2005, Matteo Faleschini wrote:
> Hello,
>
> I'm trying to use an ide hard disk in a usb external case.
> The case is an hamlet.
>
> When I connect it to my computer I get some errors in /var/log/messages.
> The device is set on sda at first but then I get these errors.
>
> Apr 24 18:54:58 patagonia usb 1-2: reset high speed USB device using
> ehci_hcd and address 25
> Apr 24 18:54:59 patagonia usb 1-2: scsi_eh_5 timed out on ep0in
> Apr 24 18:54:59 patagonia usb 1-2: device descriptor read/64, error -110
> [few times]
> Apr 24 18:55:10 patagonia scsi: Device offlined - not ready after error
> recovery: host 5 channel 0 id 0 lun 0
> Apr 24 18:55:10 patagonia usb 1-2: USB disconnect, address 25
> Apr 24 18:55:10 patagonia scsi5 (0:0): rejecting I/O to offline device
> Apr 24 18:55:10 patagonia scsi5 (0:0): rejecting I/O to offline device
> Apr 24 18:55:10 patagonia usb-storage: device scan complete
> Apr 24 18:55:10 patagonia usb 1-2: new high speed USB device using
> ehci_hcd and address 26
> Apr 24 18:55:11 patagonia usb 1-2: khubd timed out on ep0in
> Apr 24 18:55:12 patagonia usb 1-2: device descriptor read/64, error -110
> [few times]
>
> I run a gentoo linux with kernel 2.6.11-rc5
> and I get very similar errors on a debian sid with kernel 2.4.21
>
> I've seen that the error 110 is a timeout error but I don't know what to
> do right know.
You can try running at full speed instead of high speed by doing
rmmod ehci-hcd
before plugging in the drive.
You can try turning on USB Mass Storage verbose debugging in the kernel
configuration and posting the system log. Maybe something in there will
indicate why this problem is occurring.
You can even try getting an add-on USB controller card to use instead of
the controller in your computer. Some add-on cards (like those with
chipsets by NEC) are often of higher quality than the components on
motherboards.
Alan Stern
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