Kernel Panic when communicating with usb-wifi when dwc2-debug, and fast usb uart enabled #83

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opened 2019-02-21 01:48:28 +01:00 by SolidEva · 1 comment

SolidEva commented

2019-02-21 01:48:28 +01:00

(Migrated from github.com)

When trying to debug the wifi issue in the newer kernel, I found I could easily get the system to panic even on fully functional 4.17.2 when the following are enabled:

dwc2 debugging in the kernel config
usb uart in the cmdline
console for usb uart set to 115200 baud

Not sure yet which causes the issue, or if it requires all three.
Hopefully a slower baud works, not getting a debug uart would be a bummer.

When trying to debug the wifi issue in the newer kernel, I found I could easily get the system to panic even on fully functional 4.17.2 when the following are enabled: - dwc2 debugging in the kernel config - usb uart in the cmdline - console for usb uart set to 115200 baud Not sure yet which causes the issue, or if it requires all three. Hopefully a slower baud works, not getting a debug uart would be a bummer.

SolidEva commented

2019-02-25 22:02:36 +01:00

(Migrated from github.com)

Confirmed that speeds over 19200 cause the issue.