On 22/11/16 08:37, Mathias Nyman wrote:
> On 21.11.2016 23:52, Simon Arlott wrote:
>> 2016-06-17T09:56:09.219+01:00 <warning> kernel: xhci_hcd 0000:00:14.0: URB transfer length is wrong, xHC issue? req. len = 4, act. len = 4294967292
>
> Your broken hardware triggered another interesting issue.
> The len value 4294967292 looks like a u32 wrapped around.
>
> What kernelversion was this?
These versions:
4 Linux version 4.2.0-34-generic (buildd@lgw01-54) (gcc version 5.2.1 20151010 (Ubuntu 5.2.1-22ubuntu2) ) #39-Ubuntu SMP Thu Mar 10 22:13:01 UTC 2016 (Ubuntu 4.2.0-34.39-generic 4.2.8-ckt4)
1 xhci_hcd 0000:00:14.0: URB transfer length is wrong, xHC issue? req. len = 0, act. len = 4294967288
1 Linux version 4.2.0-35-generic (buildd@lgw01-43) (gcc version 5.2.1 20151010 (Ubuntu 5.2.1-22ubuntu2) ) #40-Ubuntu SMP Tue Mar 15 22:15:45 UTC 2016 (Ubuntu 4.2.0-35.40-generic 4.2.8-ckt5)
11 xhci_hcd 0000:00:14.0: URB transfer length is wrong, xHC issue? req. len = 0, act. len = 4294967288
1 Linux version 4.4.0-22-generic (buildd@lgw01-41) (gcc version 5.3.1 20160413 (Ubuntu 5.3.1-14ubuntu2) ) #40-Ubuntu SMP Thu May 12 22:03:46 UTC 2016 (Ubuntu 4.4.0-22.40-generic 4.4.8)
1 xhci_hcd 0000:00:14.0: URB transfer length is wrong, xHC issue? req. len = 0, act. len = 4294967288
82 xhci_hcd 0000:00:14.0: URB transfer length is wrong, xHC issue? req. len = 4, act. len = 4294967292
2 xhci_hcd 0000:00:14.0: URB transfer length is wrong, xHC issue? req. len = 0, act. len = 4294967288
1 Linux version 4.4.0-24-generic (buildd@lgw01-12) (gcc version 5.3.1 20160413 (Ubuntu 5.3.1-14ubuntu2.1) ) #43-Ubuntu SMP Wed Jun 8 19:27:37 UTC 2016 (Ubuntu 4.4.0-24.43-generic 4.4.10)
134694 xhci_hcd 0000:00:14.0: URB transfer length is wrong, xHC issue? req. len = 4, act. len = 4294967292
--
Simon Arlott
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