Re: USB3 external HDD not recognized [regression]

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Hi,

>>> 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.
>>

I tested that branch (HEAD commit 190f6b0b), and the issue is still the
same. Directly after booting, if I plug in the disk, it doesn't work
(with the "root hub lost power" error). Removing the cable, setting
power/control to "on" for all PCI devices, then plugging it back in, the
disk works fine.

> 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

lsusb says:
Bus 003 Device 002: ID 0bc2:3312 Seagate RSS LLC

The package says "Seagate Expansion 5TB". But I'm not sure these are all
using the same controller; for example, I also have a "Seagate Expansion
3TB" that works fine.

(I'm removing Wang, Yu <yu.y.wang@xxxxxxxxx> from the recipients, as I
keep getting bounces from that address.)

Kind regards,
Ralf
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