Alan Stern wrote:
> On Tue, 25 Oct 2005, MAL wrote:
> 
>>ok, I've been using 2.6.13 for a while now and while the error recovery
>>does now work (I can power cycle the device after it has a fit and it
>>reconnects as a new USB device), the problem with random SCSI errors to
>>USB2 hard disks continues, making them frustratingly unreliable.
>>
>>I'd be happy to provide more info if needed.
> 
> 
> One way to get more information, although a somewhat painful way, is to 
> enable USB Mass Storage verbose debugging in the kernel configuration 
> (CONFIG_USB_STORAGE_DEBUG).  That would help show exactly what goes wrong.  
> The problem is that it generates voluminous debugging messages.  For large 
> transfers, like your tarball unpacking, the system log files would grow 
> uncomfortably large.

I've tried to avoid this for long enough, I'll give it a go.

> You know, it quite often turns out that instability in USB storage
> devices, especially the "insert ATA disk in a USB enclosure" sort, is 
> caused not by problems in the host hardware or the system software.  It's 
> caused by defects and bad design of the USB (or USB-ATA) interface in the 
> device's electronics.

I can believe that, but the device works flawlessly time and again on a
Windows host.

MAL


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