Bug#782442: USB3 external HDD not recognized [regression]

[Mathias Nyman <mathias.nyman@linux.intel.com>]

On 02.06.2015 15:59, Ralf Jung wrote:
> Hi,
> 
>>>> Indeed doing "echo 'on' | sudo tee /sys/bus/pci/devices/*/power/control"
>>>> fixes the problem: When I subsequently plug in the disk, it is
>>>> recognized correctly. I confirmed this with an older kernel (the 3.16
>>>> Debian kernel, to be more precise). That's good to know, now I don't
>>>> need to reboot to a different kernel anymore to do fast backups ;-)
>>>
>>> Is there any news on this? Any further information I can provide to help
>>> fix the issue?
>>>
>>
>> I got some untested and not yet reviewed usb3 resume race fixes from Zhuang Jin Can
>> If you can try them out and see if they help it would be great.
>> They are sitting in a topic branch called "xhci_usb3_pm_fixes" in my tree:
>> (5 extra patches on top of current usb-linus)
>>
>> git://git.kernel.org/pub/scm/linux/kernel/git/mnyman/xhci.git xhci_usb3_pm_fixes
> 
> This is my production and (main and only) work machine. If you tell me
> testing that branch is safe and won't mess up my file systems or
> hardware, I can give it a try.
> 

Can't give any guarantees, the five additional patches only touch usb resume code, and
it's based on Greg's usb-linus tree.

What was the  model of the USB3 disk again? some Seagate Expansion Disk?
I'll see If I can find one of those myself somehow

-Mathias