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by krbvroc1
Wed Sep 25, 2019 5:55 pm
Forum: Troubleshooting
Topic: RP4 - Cannot get bootmessages to UART
Replies: 1
Views: 127

RP4 - Cannot get bootmessages to UART

My goal is to route all kernel boot messages to the UART4. I already have ttyAMA1 configured. I whittled down my /boot/cmdline.txt to only the following: dwc_otg.lpm_enable=0 console=/dev/ttyAMA1,115200 root=PARTUUID=aaaaaaaa-02 rootfstype=ext4 elevator=deadline rootwait My /boot/config.txt contains...
by krbvroc1
Tue Jul 10, 2018 8:49 pm
Forum: Advanced users
Topic: Moving Linux kernel to 4.14
Replies: 161
Views: 90380

Re: Moving Linux kernel to 4.14

Once you're running a current development kernel if the problem still exists then open an issue at https://github.com/raspberrypi/linux or https://github.com/raspberrypi/firmware (if you can be sure it belongs there). If 'dwc_otg.fiq_enable=0 dwc_otg.fiq_fsm_enable=0' fixes it, is that kernel or fi...
by krbvroc1
Tue Jul 10, 2018 6:43 pm
Forum: Advanced users
Topic: Moving Linux kernel to 4.14
Replies: 161
Views: 90380

Re: Moving Linux kernel to 4.14

I am using stock kernel 4.14.34-v7+ from 2018-04-18-raspbian-stretch-lite.zip. Run sudo apt update; sudo apt -y dist-upgrade and that will get to a 4.14.52 kernel that you can use to re-run your tests. I am still seeing the hang with 4.14.52-v7+...but it is hard to track. It only seems to be able t...
by krbvroc1
Tue Jul 10, 2018 12:31 am
Forum: Advanced users
Topic: Moving Linux kernel to 4.14
Replies: 161
Views: 90380

Re: Moving Linux kernel to 4.14

Kernel 4.14.21 seemed to be really stable, 4.14.24 we started seeing these kernel panics again. Seems that we have not round the race condition that is causing the problem. Any update / resolution / github issue on this? I found this thread because my 3B+ is fairly regularly hanging when I unplug a...

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