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guido.hatzsis
n00b
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Joined: 10 Jul 2015
Posts: 51

PostPosted: Fri Jul 17, 2015 9:58 am    Post subject: SS USB drive with VT-d enables Reply with quote

I have a new USB drive that is running USB 3.0. I have tried using this with my PC with VT-d enabled and it doesn't work. Should this work?
With VT-d enabled I get:
[113781.101494] usb 4-2: reset SuperSpeed USB device number 9 using xhci_hcd
[113897.215433] xhci_hcd 0000:00:14.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 3 comp_code 1
[113897.215439] xhci_hcd 0000:00:14.0: Looking for event-dma 00000000fffc5000 trb-start 00000000fffc6e30 trb-end 00000000fffc7000 seg

But without there are not DMA errors

Cheers

Guido
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eccerr0r
Watchman
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Joined: 01 Jul 2004
Posts: 7267
Location: almost Mile High in the USA

PostPosted: Fri Jul 17, 2015 2:08 pm    Post subject: Reply with quote

you probably have to ask the hypervisor code maintainer about this if it works.

If you're not running a hypervisor, then this is either a kernel or hardware problem.

VT-d causes my machine to randomly hang, I ended up just not using it and eating the penalty. Oh well.
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Intel Core i7 2700K@ 4.1GHz/HD3000 graphics/8GB DDR3/180GB SSD
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guido.hatzsis
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Joined: 10 Jul 2015
Posts: 51

PostPosted: Fri Jul 17, 2015 10:23 pm    Post subject: Reply with quote

[quote="eccerr0r"]you probably have to ask the hypervisor code maintainer about this if it works.

If you're not running a hypervisor, then this is either a kernel or hardware problem.

VT-d causes my machine to randomly hang, I ended up just not using it and eating the penalty. Oh well.[/quote]

I am not running a hypervisor. So would this be a bug then?
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