Re: USB2 / USB3 compatibility problems: xhci_hcd 0000:00:06.0: WARN Wrong bounce buffer write length: 0 != 512

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Hello Mathias,

On 25.01.21 at 19:28 Mathias Nyman wrote:
> Hi
> 
> On 25.1.2021 12.18, Andreas Hartmann wrote:
>>
>> Hello!
>>
>> Meanwhile I found the culprit:
>>
>> https://www.spinics.net/lists/linux-usb/msg141467.html
>> and
>> https://www.spinics.net/lists/linux-usb/msg141468.html
>>
>> Especially the last change breaks things here completely. After removing them
>> by the attached patch, problems are gone and device works again as expected
>> (I tested with the original 24 kB bulk size which was horribly broken w/o the
>> attached patch). This means: the additional repair steps are not just breaking
>> things but are even unnecessary (it's working perfectly without those changes)
>> here.
> 
> Unfortunately this isn't enough to remove the alignment code for those
> controllers. This is just once specific usecase. We need to figure out what
> really goes wrong.
> 
> Looks like 0 bytes is copied from sg list to bounce buffer when we want 512
> bytes copied. Just noticed the alignment code assumes sg lists are used without
> checking it first.
> 
> Could you add the below code and test again, it should print more debugging info.

See the attached file. That's the result of two times coping 1.3 GB via scp.

As the transfer mostly breaks after the wrong alignments and because
there isn't any further alignment needed at all, I didn't do more tests.
Hope this helps. Most importantly it should be investigated, why there
isn't any additional alignment needed at all.


Thanks
Andreas
2021-01-25T20:48:05.432669+01:00 localhost kernel: [  219.779879] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:48:05.432696+01:00 localhost kernel: [  219.779886] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:48:06.684039+01:00 localhost kernel: [  221.031279] xhci_hcd 0000:05:00.3: Unaligned 244 bytes, buff len 7924
2021-01-25T20:48:06.684064+01:00 localhost kernel: [  221.031283] xhci_hcd 0000:05:00.3: split align, new buff len 7680
2021-01-25T20:48:06.963774+01:00 localhost kernel: [  221.311019] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:48:06.963797+01:00 localhost kernel: [  221.311023] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:48:07.544122+01:00 localhost kernel: [  221.891370] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:48:07.544142+01:00 localhost kernel: [  221.891374] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:48:14.059866+01:00 localhost kernel: [  228.407127] xhci_hcd 0000:05:00.3: Unaligned 300 bytes, buff len 11052
2021-01-25T20:48:14.059890+01:00 localhost kernel: [  228.407131] xhci_hcd 0000:05:00.3: split align, new buff len 10752
2021-01-25T20:48:14.253496+01:00 localhost kernel: [  228.599397] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:48:14.253520+01:00 localhost kernel: [  228.599401] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:48:15.133583+01:00 localhost kernel: [  229.480857] xhci_hcd 0000:05:00.3: Unaligned 160 bytes, buff len 160
2021-01-25T20:48:15.133598+01:00 localhost kernel: [  229.480860] xhci_hcd 0000:05:00.3: WARN Wrong bounce buffer write length: 0 != 512
2021-01-25T20:48:15.133599+01:00 localhost kernel: [  229.480861] xhci_hcd 0000:05:00.3: urb->num_sgs 0
2021-01-25T20:48:15.133600+01:00 localhost kernel: [  229.480862] xhci_hcd 0000:05:00.3: urb->num_mapped_sgs 0
2021-01-25T20:48:15.133600+01:00 localhost kernel: [  229.480863] xhci_hcd 0000:05:00.3: urb->transfer_buffer_length 24900
2021-01-25T20:48:15.133601+01:00 localhost kernel: [  229.480864] xhci_hcd 0000:05:00.3: enqd_len 0
2021-01-25T20:48:15.133601+01:00 localhost kernel: [  229.480864] xhci_hcd 0000:05:00.3: max_pkt 512
2021-01-25T20:48:16.315613+01:00 localhost kernel: [  230.662880] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:48:16.315639+01:00 localhost kernel: [  230.662885] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:48:18.648749+01:00 localhost kernel: [  232.996022] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:48:18.648773+01:00 localhost kernel: [  232.996027] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:48:19.219018+01:00 localhost kernel: [  233.566301] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:48:19.219043+01:00 localhost kernel: [  233.566306] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:48:20.818958+01:00 localhost kernel: [  235.166240] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:48:20.818986+01:00 localhost kernel: [  235.166245] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:48:21.896537+01:00 localhost kernel: [  236.243835] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:48:21.896558+01:00 localhost kernel: [  236.243839] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:48:23.962820+01:00 localhost kernel: [  238.310123] xhci_hcd 0000:05:00.3: Unaligned 232 bytes, buff len 6376
2021-01-25T20:48:23.962836+01:00 localhost kernel: [  238.310127] xhci_hcd 0000:05:00.3: split align, new buff len 6144
2021-01-25T20:48:26.477497+01:00 localhost kernel: [  240.822066] xhci_hcd 0000:05:00.3: Unaligned 288 bytes, buff len 12576
2021-01-25T20:48:26.477528+01:00 localhost kernel: [  240.822072] xhci_hcd 0000:05:00.3: split align, new buff len 12288
2021-01-25T20:48:32.237504+01:00 localhost kernel: [  246.583028] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:48:32.237529+01:00 localhost kernel: [  246.583032] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:48:32.609500+01:00 localhost kernel: [  246.956710] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:48:32.609528+01:00 localhost kernel: [  246.956715] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:48:33.384467+01:00 localhost kernel: [  247.731802] xhci_hcd 0000:05:00.3: Unaligned 204 bytes, buff len 4812
2021-01-25T20:48:33.384489+01:00 localhost kernel: [  247.731808] xhci_hcd 0000:05:00.3: split align, new buff len 4608
2021-01-25T20:48:36.168882+01:00 localhost kernel: [  250.516217] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:48:36.168905+01:00 localhost kernel: [  250.516221] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:48:36.390007+01:00 localhost kernel: [  250.737347] xhci_hcd 0000:05:00.3: Unaligned 368 bytes, buff len 15728
2021-01-25T20:48:36.390031+01:00 localhost kernel: [  250.737351] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:48:36.888094+01:00 localhost kernel: [  251.235422] xhci_hcd 0000:05:00.3: Unaligned 280 bytes, buff len 9496
2021-01-25T20:48:36.888122+01:00 localhost kernel: [  251.235426] xhci_hcd 0000:05:00.3: split align, new buff len 9216
2021-01-25T20:48:39.457905+01:00 localhost kernel: [  253.805243] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:48:39.457933+01:00 localhost kernel: [  253.805247] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:48:44.096031+01:00 localhost kernel: [  258.443399] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:48:44.096051+01:00 localhost kernel: [  258.443401] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:48:47.166279+01:00 localhost kernel: [  261.513632] xhci_hcd 0000:05:00.3: Unaligned 280 bytes, buff len 15640
2021-01-25T20:48:47.166307+01:00 localhost kernel: [  261.513636] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:48:47.573499+01:00 localhost kernel: [  261.919729] xhci_hcd 0000:05:00.3: Unaligned 368 bytes, buff len 15728
2021-01-25T20:48:47.573523+01:00 localhost kernel: [  261.919733] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:48:50.720531+01:00 localhost kernel: [  265.067893] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:48:50.720559+01:00 localhost kernel: [  265.067897] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:48:54.182808+01:00 localhost kernel: [  268.278671] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:48:54.182834+01:00 localhost kernel: [  268.278677] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:48:54.401591+01:00 localhost kernel: [  268.480636] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:48:54.401616+01:00 localhost kernel: [  268.480641] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:48:56.100003+01:00 localhost kernel: [  270.048395] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:48:56.100028+01:00 localhost kernel: [  270.048400] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:48:56.312818+01:00 localhost kernel: [  270.250076] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:48:56.312842+01:00 localhost kernel: [  270.250081] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:48:56.501147+01:00 localhost kernel: [  270.438530] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:48:56.501171+01:00 localhost kernel: [  270.438535] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:49:03.551863+01:00 localhost kernel: [  277.489761] xhci_hcd 0000:05:00.3: Unaligned 368 bytes, buff len 15728
2021-01-25T20:49:03.551888+01:00 localhost kernel: [  277.489765] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:49:04.137489+01:00 localhost kernel: [  278.071863] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:49:04.137512+01:00 localhost kernel: [  278.071868] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:49:05.852773+01:00 localhost kernel: [  279.790685] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:49:05.852794+01:00 localhost kernel: [  279.790690] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:49:06.303813+01:00 localhost kernel: [  280.241731] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:49:06.303837+01:00 localhost kernel: [  280.241736] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:49:06.862751+01:00 localhost kernel: [  280.800670] xhci_hcd 0000:05:00.3: Unaligned 280 bytes, buff len 15640
2021-01-25T20:49:06.862770+01:00 localhost kernel: [  280.800675] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:49:08.366705+01:00 localhost kernel: [  282.304624] xhci_hcd 0000:05:00.3: Unaligned 280 bytes, buff len 15640
2021-01-25T20:49:08.366729+01:00 localhost kernel: [  282.304629] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:49:09.358719+01:00 localhost kernel: [  283.296633] xhci_hcd 0000:05:00.3: Unaligned 144 bytes, buff len 144
2021-01-25T20:49:09.358741+01:00 localhost kernel: [  283.296638] xhci_hcd 0000:05:00.3: WARN Wrong bounce buffer write length: 0 != 512
2021-01-25T20:49:09.358743+01:00 localhost kernel: [  283.296640] xhci_hcd 0000:05:00.3: urb->num_sgs 0
2021-01-25T20:49:09.358745+01:00 localhost kernel: [  283.296642] xhci_hcd 0000:05:00.3: urb->num_mapped_sgs 0
2021-01-25T20:49:09.358746+01:00 localhost kernel: [  283.296644] xhci_hcd 0000:05:00.3: urb->transfer_buffer_length 6228
2021-01-25T20:49:09.358747+01:00 localhost kernel: [  283.296646] xhci_hcd 0000:05:00.3: enqd_len 0
2021-01-25T20:49:09.358748+01:00 localhost kernel: [  283.296647] xhci_hcd 0000:05:00.3: max_pkt 512
2021-01-25T20:49:09.559923+01:00 localhost kernel: [  283.497856] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:49:09.559943+01:00 localhost kernel: [  283.497859] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:49:10.249484+01:00 localhost kernel: [  284.187186] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:49:10.249504+01:00 localhost kernel: [  284.187189] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:49:13.310514+01:00 localhost kernel: [  287.248469] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:49:13.310530+01:00 localhost kernel: [  287.248471] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:49:14.732785+01:00 localhost kernel: [  288.670725] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:49:14.732809+01:00 localhost kernel: [  288.670730] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:49:17.650404+01:00 localhost kernel: [  291.588351] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:49:17.650427+01:00 localhost kernel: [  291.588356] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:49:18.052537+01:00 localhost kernel: [  291.990508] xhci_hcd 0000:05:00.3: Unaligned 280 bytes, buff len 15640
2021-01-25T20:49:18.052551+01:00 localhost kernel: [  291.990510] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:49:18.777480+01:00 localhost kernel: [  292.715323] xhci_hcd 0000:05:00.3: Unaligned 160 bytes, buff len 3232
2021-01-25T20:49:18.777494+01:00 localhost kernel: [  292.715325] xhci_hcd 0000:05:00.3: split align, new buff len 3072
2021-01-25T20:49:20.845487+01:00 localhost kernel: [  294.781639] xhci_hcd 0000:05:00.3: Unaligned 368 bytes, buff len 15728
2021-01-25T20:49:20.845507+01:00 localhost kernel: [  294.781642] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:49:21.033620+01:00 localhost kernel: [  294.971593] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:49:21.033641+01:00 localhost kernel: [  294.971597] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:49:22.847230+01:00 localhost kernel: [  296.785201] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:49:22.847254+01:00 localhost kernel: [  296.785206] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:49:26.653505+01:00 localhost kernel: [  300.589168] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:49:26.653536+01:00 localhost kernel: [  300.589172] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:49:28.068406+01:00 localhost kernel: [  302.006391] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:49:28.068431+01:00 localhost kernel: [  302.006396] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:49:29.014069+01:00 localhost kernel: [  302.952052] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:49:29.014093+01:00 localhost kernel: [  302.952057] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:49:29.942425+01:00 localhost kernel: [  303.880414] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:49:29.942447+01:00 localhost kernel: [  303.880419] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:49:30.942988+01:00 localhost kernel: [  304.880987] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:49:30.943012+01:00 localhost kernel: [  304.880992] xhci_hcd 0000:05:00.3: split align, new buff len 15360


2021-01-25T20:52:54.649241+01:00 localhost kernel: [  508.586898] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:52:54.649267+01:00 localhost kernel: [  508.586903] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:52:55.917197+01:00 localhost kernel: [  509.854848] xhci_hcd 0000:05:00.3: Unaligned 468 bytes, buff len 23508
2021-01-25T20:52:55.917223+01:00 localhost kernel: [  509.854854] xhci_hcd 0000:05:00.3: split align, new buff len 23040
2021-01-25T20:52:56.208083+01:00 localhost kernel: [  510.145741] xhci_hcd 0000:05:00.3: Unaligned 280 bytes, buff len 15640
2021-01-25T20:52:56.208110+01:00 localhost kernel: [  510.145746] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:52:56.506004+01:00 localhost kernel: [  510.443649] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:52:56.506030+01:00 localhost kernel: [  510.443654] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:52:57.006628+01:00 localhost kernel: [  510.944273] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:52:57.006655+01:00 localhost kernel: [  510.944278] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:53:01.084710+01:00 localhost kernel: [  515.022362] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:53:01.084736+01:00 localhost kernel: [  515.022368] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:53:07.813507+01:00 localhost kernel: [  521.750591] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:53:07.813541+01:00 localhost kernel: [  521.750597] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:53:08.337508+01:00 localhost kernel: [  522.272737] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:53:08.337538+01:00 localhost kernel: [  522.272742] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:53:08.741501+01:00 localhost kernel: [  522.677834] xhci_hcd 0000:05:00.3: Unaligned 336 bytes, buff len 15696
2021-01-25T20:53:08.741525+01:00 localhost kernel: [  522.677838] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:53:09.345505+01:00 localhost kernel: [  523.279711] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:53:09.345535+01:00 localhost kernel: [  523.279716] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:53:09.553507+01:00 localhost kernel: [  523.488681] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:53:09.553538+01:00 localhost kernel: [  523.488687] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:53:10.581501+01:00 localhost kernel: [  524.518552] xhci_hcd 0000:05:00.3: Unaligned 280 bytes, buff len 15640
2021-01-25T20:53:10.581526+01:00 localhost kernel: [  524.518557] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:53:11.022998+01:00 localhost kernel: [  524.960689] xhci_hcd 0000:05:00.3: Unaligned 368 bytes, buff len 15728
2021-01-25T20:53:11.023021+01:00 localhost kernel: [  524.960694] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:53:11.866753+01:00 localhost kernel: [  525.804428] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:53:11.866777+01:00 localhost kernel: [  525.804433] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:53:14.299164+01:00 localhost kernel: [  528.236850] xhci_hcd 0000:05:00.3: Unaligned 252 bytes, buff len 7932
2021-01-25T20:53:14.299190+01:00 localhost kernel: [  528.236855] xhci_hcd 0000:05:00.3: split align, new buff len 7680
2021-01-25T20:53:17.021509+01:00 localhost kernel: [  530.957559] xhci_hcd 0000:05:00.3: Unaligned 168 bytes, buff len 3240
2021-01-25T20:53:17.021534+01:00 localhost kernel: [  530.957564] xhci_hcd 0000:05:00.3: split align, new buff len 3072
2021-01-25T20:53:17.200557+01:00 localhost kernel: [  531.138252] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:53:17.200584+01:00 localhost kernel: [  531.138257] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:53:17.376444+01:00 localhost kernel: [  531.314128] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:53:17.376470+01:00 localhost kernel: [  531.314133] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:53:21.103355+01:00 localhost kernel: [  535.041064] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:53:21.103377+01:00 localhost kernel: [  535.041068] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:53:22.681712+01:00 localhost kernel: [  536.615630] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:53:22.681738+01:00 localhost kernel: [  536.615635] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:53:23.262498+01:00 localhost kernel: [  537.200175] xhci_hcd 0000:05:00.3: Unaligned 144 bytes, buff len 144
2021-01-25T20:53:23.262524+01:00 localhost kernel: [  537.200181] xhci_hcd 0000:05:00.3: WARN Wrong bounce buffer write length: 0 != 512
2021-01-25T20:53:23.262527+01:00 localhost kernel: [  537.200183] xhci_hcd 0000:05:00.3: urb->num_sgs 0
2021-01-25T20:53:23.262529+01:00 localhost kernel: [  537.200185] xhci_hcd 0000:05:00.3: urb->num_mapped_sgs 0
2021-01-25T20:53:23.262530+01:00 localhost kernel: [  537.200187] xhci_hcd 0000:05:00.3: urb->transfer_buffer_length 24900
2021-01-25T20:53:23.262532+01:00 localhost kernel: [  537.200188] xhci_hcd 0000:05:00.3: enqd_len 0
2021-01-25T20:53:23.262533+01:00 localhost kernel: [  537.200190] xhci_hcd 0000:05:00.3: max_pkt 512
2021-01-25T20:53:23.685505+01:00 localhost kernel: [  537.622567] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:53:23.685757+01:00 localhost kernel: [  537.622572] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:53:23.881468+01:00 localhost kernel: [  537.819157] xhci_hcd 0000:05:00.3: Unaligned 200 bytes, buff len 3272
2021-01-25T20:53:23.881492+01:00 localhost kernel: [  537.819163] xhci_hcd 0000:05:00.3: split align, new buff len 3072
2021-01-25T20:53:26.398176+01:00 localhost kernel: [  540.335857] xhci_hcd 0000:05:00.3: Unaligned 248 bytes, buff len 9464
2021-01-25T20:53:26.398203+01:00 localhost kernel: [  540.335862] xhci_hcd 0000:05:00.3: split align, new buff len 9216
2021-01-25T20:53:29.086359+01:00 localhost kernel: [  543.024087] xhci_hcd 0000:05:00.3: Unaligned 392 bytes, buff len 18824
2021-01-25T20:53:29.086380+01:00 localhost kernel: [  543.024091] xhci_hcd 0000:05:00.3: split align, new buff len 18432
2021-01-25T20:53:29.489512+01:00 localhost kernel: [  543.425986] xhci_hcd 0000:05:00.3: Unaligned 360 bytes, buff len 15720
2021-01-25T20:53:29.489539+01:00 localhost kernel: [  543.425991] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:53:30.578180+01:00 localhost kernel: [  544.515887] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:53:30.578211+01:00 localhost kernel: [  544.515892] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:53:33.416061+01:00 localhost kernel: [  547.353782] xhci_hcd 0000:05:00.3: Unaligned 420 bytes, buff len 20388
2021-01-25T20:53:33.416089+01:00 localhost kernel: [  547.353788] xhci_hcd 0000:05:00.3: split align, new buff len 19968
2021-01-25T20:53:34.081496+01:00 localhost kernel: [  548.017944] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:53:34.081780+01:00 localhost kernel: [  548.017949] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:53:34.621505+01:00 localhost kernel: [  548.559085] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:53:34.621532+01:00 localhost kernel: [  548.559089] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:53:37.834070+01:00 localhost kernel: [  551.771798] xhci_hcd 0000:05:00.3: Unaligned 340 bytes, buff len 14164
2021-01-25T20:53:37.834100+01:00 localhost kernel: [  551.771803] xhci_hcd 0000:05:00.3: split align, new buff len 13824
2021-01-25T20:53:38.449501+01:00 localhost kernel: [  552.384534] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:53:38.449527+01:00 localhost kernel: [  552.384539] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:53:45.565760+01:00 localhost kernel: [  559.503498] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:53:45.565790+01:00 localhost kernel: [  559.503503] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:53:47.137570+01:00 localhost kernel: [  561.075199] xhci_hcd 0000:05:00.3: Unaligned 168 bytes, buff len 168
2021-01-25T20:53:47.137594+01:00 localhost kernel: [  561.075205] xhci_hcd 0000:05:00.3: WARN Wrong bounce buffer write length: 0 != 512
2021-01-25T20:53:47.137597+01:00 localhost kernel: [  561.075208] xhci_hcd 0000:05:00.3: urb->num_sgs 0
2021-01-25T20:53:47.137599+01:00 localhost kernel: [  561.075210] xhci_hcd 0000:05:00.3: urb->num_mapped_sgs 0
2021-01-25T20:53:47.137603+01:00 localhost kernel: [  561.075212] xhci_hcd 0000:05:00.3: urb->transfer_buffer_length 1560
2021-01-25T20:53:47.137605+01:00 localhost kernel: [  561.075214] xhci_hcd 0000:05:00.3: enqd_len 0
2021-01-25T20:53:47.137606+01:00 localhost kernel: [  561.075215] xhci_hcd 0000:05:00.3: max_pkt 512
2021-01-25T20:53:51.525297+01:00 localhost kernel: [  565.463059] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:53:51.525320+01:00 localhost kernel: [  565.463063] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:53:54.331675+01:00 localhost kernel: [  568.269446] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:53:54.331699+01:00 localhost kernel: [  568.269450] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:53:56.588689+01:00 localhost kernel: [  570.526439] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:53:56.588714+01:00 localhost kernel: [  570.526445] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:54:01.622038+01:00 localhost kernel: [  575.559798] xhci_hcd 0000:05:00.3: Unaligned 340 bytes, buff len 14164
2021-01-25T20:54:01.622065+01:00 localhost kernel: [  575.559804] xhci_hcd 0000:05:00.3: split align, new buff len 13824
2021-01-25T20:54:03.807069+01:00 localhost kernel: [  577.744837] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:54:03.807094+01:00 localhost kernel: [  577.744843] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:54:04.133080+01:00 localhost kernel: [  578.070862] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:54:04.133109+01:00 localhost kernel: [  578.070867] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:54:04.601587+01:00 localhost kernel: [  578.539362] xhci_hcd 0000:05:00.3: Unaligned 220 bytes, buff len 4828
2021-01-25T20:54:04.601614+01:00 localhost kernel: [  578.539367] xhci_hcd 0000:05:00.3: split align, new buff len 4608
2021-01-25T20:54:07.485308+01:00 localhost kernel: [  581.423106] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:54:07.485329+01:00 localhost kernel: [  581.423110] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:54:08.049501+01:00 localhost kernel: [  581.985364] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:54:08.049529+01:00 localhost kernel: [  581.985368] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:54:08.633543+01:00 localhost kernel: [  582.569227] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:54:08.633587+01:00 localhost kernel: [  582.569235] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:54:09.197516+01:00 localhost kernel: [  583.131888] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:54:09.197539+01:00 localhost kernel: [  583.131893] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:54:18.825193+01:00 localhost kernel: [  592.763004] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:54:18.825217+01:00 localhost kernel: [  592.763008] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:54:19.191806+01:00 localhost kernel: [  593.129517] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:54:19.191833+01:00 localhost kernel: [  593.129522] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:54:20.256271+01:00 localhost kernel: [  594.194106] xhci_hcd 0000:05:00.3: Unaligned 156 bytes, buff len 1692
2021-01-25T20:54:20.256300+01:00 localhost kernel: [  594.194111] xhci_hcd 0000:05:00.3: split align, new buff len 1536
2021-01-25T20:54:20.466527+01:00 localhost kernel: [  594.404144] xhci_hcd 0000:05:00.3: Unaligned 368 bytes, buff len 18800
2021-01-25T20:54:20.466553+01:00 localhost kernel: [  594.404149] xhci_hcd 0000:05:00.3: split align, new buff len 18432
2021-01-25T20:54:22.901256+01:00 localhost kernel: [  596.839080] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:54:22.901284+01:00 localhost kernel: [  596.839085] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:54:23.098582+01:00 localhost kernel: [  597.036427] xhci_hcd 0000:05:00.3: Unaligned 388 bytes, buff len 17284
2021-01-25T20:54:23.098610+01:00 localhost kernel: [  597.036432] xhci_hcd 0000:05:00.3: split align, new buff len 16896
2021-01-25T20:54:26.543491+01:00 localhost kernel: [  600.481319] xhci_hcd 0000:05:00.3: Unaligned 376 bytes, buff len 15736
2021-01-25T20:54:26.543517+01:00 localhost kernel: [  600.481324] xhci_hcd 0000:05:00.3: split align, new buff len 15360
2021-01-25T20:54:27.545714+01:00 localhost kernel: [  601.481064] xhci_hcd 0000:05:00.3: Unaligned 160 bytes, buff len 160
2021-01-25T20:54:27.545740+01:00 localhost kernel: [  601.481070] xhci_hcd 0000:05:00.3: WARN Wrong bounce buffer write length: 0 != 512
2021-01-25T20:54:27.545742+01:00 localhost kernel: [  601.481074] xhci_hcd 0000:05:00.3: urb->num_sgs 0
2021-01-25T20:54:27.545744+01:00 localhost kernel: [  601.481076] xhci_hcd 0000:05:00.3: urb->num_mapped_sgs 0
2021-01-25T20:54:27.545745+01:00 localhost kernel: [  601.481079] xhci_hcd 0000:05:00.3: urb->transfer_buffer_length 24900
2021-01-25T20:54:27.545746+01:00 localhost kernel: [  601.481082] xhci_hcd 0000:05:00.3: enqd_len 0
2021-01-25T20:54:27.545748+01:00 localhost kernel: [  601.481084] xhci_hcd 0000:05:00.3: max_pkt 512

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