RE: [linux-usb-devel] USB mass storage device has SCSI i/o errors, kernel > 2.6.3

From: Roberts-Thomson, James
Date: Tue Apr 20 2004 - 18:58:02 EST

Hi Alan,

>> I have noticed an issue with writing to a USB mass storage device,
>> which is a flash-rom-based mp3 player.
>> [...]
>> I have verified that this issue still occurs with 2.6.6-rc1-bk4, as
>> requested by Andrew Morton. This error was never noticed in any
>> kernel v2.6.3 or less; including v2.4.x kernels; both stock
>> and with -wolk and -mm patchsets.
> It's possible that this is caused by a recently-introduced
> bug in the UHCI driver. A patch was posted yesterday:
> 721&q=raw

I've applied this patch to my 2.6.6-rc1-bk4 kernel, and have not noticed a
reoccurance of the error since then. I had a mini "test-suite" (basically
copied 48Mb of files to the device, "sync"ed, then deleted the files and
then "sync"ed again), which I've run 6 times without a flaw - previously the
error messages were happening on a frequent basis.

Therefore, I'm fairly confident that the patch has solved my issue.


James Roberts-Thomson
Senior Systems Engineer DDI +64 4 494 4436
Infrastructure Projects Tel +64 4 494 4000
The National Bank of New Zealand Limited Fax +64 4 802 8509
Another megabytes the dust.

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