FSL/NXP P5020: USB problems with the latest Git kernels

Christian Zigotzky chzigotzky at xenosoft.de
Tue Aug 28 04:15:39 AEST 2018


Hello,

Our users tested the RC1 of kernel 4.19 on their P5020 boards today. Unfortunately the USB bug still exists. With mem values bigger than 4096M, the USB mouse and keyboard doesn’t work. With the bootarg mem=4096M, the USB devices work without any problems. Please compile the RC1 and test it on your P5020 board. There is a problem with the memory management since 22/08/18. 

Thanks,
Christian

Sent from my iPhone

> On 25. Aug 2018, at 22:19, Christian Zigotzky <chzigotzky at xenosoft.de> wrote:
> 
> Hello,
> 
> With the boot argument “mem=3500M” the USB devices work. Please compile the latest Git kernel and test it on your P5020 board. There is a problem with the memory management since 22/08/18. I can’t test because I don’t have a P5020 board here and our users can’t compile kernels.
> 
> Thanks,
> Christian
> 
> Sent from my iPhone
> 
>> On 24. Aug 2018, at 20:11, Christian Zigotzky <chzigotzky at xenosoft.de> wrote:
>> 
>> Hello,
>> 
>> There are USB problems with P5020 boards with the latest Git kernels.
>> 
>> Some users reported the following error messages:
>> 
>> skateman at X5000LNX:~$ grep -i -E 'usb.*error' /var/log/syslog
>> Aug 24 13:12:50 X5000LNX kernel: [ 6.552303] usb 1-1: device descriptor read/64, error -32
>> Aug 24 13:12:50 X5000LNX kernel: [ 6.649376] usb 2-1: device descriptor read/64, error -32
>> Aug 24 13:12:50 X5000LNX kernel: [ 6.794158] usb 1-1: device descriptor read/64, error -32
>> Aug 24 13:12:50 X5000LNX kernel: [ 6.883156] usb 2-1: device descriptor read/64, error -32
>> Aug 24 13:12:50 X5000LNX kernel: [ 7.139155] usb 1-1: device descriptor read/64, error -32
>> Aug 24 13:12:50 X5000LNX kernel: [ 7.226156] usb 2-1: device descriptor read/64, error -32
>> Aug 24 13:12:50 X5000LNX kernel: [ 7.363155] usb 1-1: device descriptor read/64, error -32
>> Aug 24 13:12:50 X5000LNX kernel: [ 7.451156] usb 2-1: device descriptor read/64, error -32
>> Aug 24 13:12:50 X5000LNX kernel: [ 8.521156] usb 1-1: device not accepting address 4, error -32
>> Aug 24 13:12:50 X5000LNX kernel: [ 8.609156] usb 2-1: device not accepting address 4, error -32
>> Aug 24 13:12:50 X5000LNX kernel: [ 9.057155] usb 1-1: device not accepting address 5, error -32
>> Aug 24 13:12:50 X5000LNX kernel: [ 9.145157] usb 2-1: device not accepting address 5, error -32
>> 
>> I don’t have a P5020 board here. That means I can’t bisect and test. Therefore I need your help. The problematic Git commit must be somewhere between 22/08/18 1:20 PM UTC and 23/08/18 10:49 AM UTC.
>> The Git kernel from 22/08/18 1:20 PM UTC works with USB devices.
>> Could you please compile a Git kernel and test it on your P5020 board?
>> 
>> Thanks,
>> Christian


More information about the Linuxppc-dev mailing list