Re: Strange issues with UAS URB cancellation

["Michał Pecio" <michal.pecio@gmail.com>]

> On Tue, Sep 03, 2024 at 03:52:43PM +0200, Marc SCHAEFER wrote:
> Sep  3 15:53:37 video kernel: [  355.639064] I/O error, dev sdb, sector 13962240 op 0x0:(READ) flags 0x4000 phys_seg 128 prio class 0
> Sep  3 15:53:56 video kernel: [  374.766217] xhci_hcd 0000:01:00.0: Stop Endpoint Context Error & Stopped on slot 9 ep 10
> Sep  3 15:53:56 video kernel: [  374.766227] xhci_hcd 0000:01:00.0: Stop Endpoint on slot 9 ep 10 failed with comp 19 ctx_state 3
> Sep  3 15:53:56 video kernel: [  374.766587] sd 15:0:0:0: [sdb] tag#3 FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK cmd_age=225s
> Sep  3 15:53:56 video kernel: [  374.766593] sd 15:0:0:0: [sdb] tag#3 Sense Key : Illegal Request [current] 
> Sep  3 15:53:56 video kernel: [  374.766596] sd 15:0:0:0: [sdb] tag#3 Add. Sense: Invalid command operation code
> Sep  3 15:53:56 video kernel: [  374.766601] sd 15:0:0:0: [sdb] tag#3 CDB: Read(16) 88 00 00 00 00 00 00 d5 04 00 00 00 04 00 00 00
> Sep  3 15:53:56 video kernel: [  374.766603] critical target error, dev sdb, sector 13960192 op 0x0:(READ) flags 0x4000 phys_seg 128 prio class 0

Hmm, this is possibly not a coincidence, but it's also not the same
"ERROR Transfer event TRB DMA ptr not part of current TD" that happened
last week. Let me know if you see the other one, because those messages
should now contain more information thanks to the patch.

But this is interesting in its own right, I will have to think about it.
Maybe it's not a HW bug but a SW one, maybe also on my NEC controller.

Regards,
Michal