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 <chzigot...@xenosoft.de> wrote: > > Hello, > > There are USB problems with P5020 boards with the latest Git kernels. > > Some users reported the following error messages: > > skateman@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
