Issue with wkup_m3 ? (Bug #157)

Added by Lee Armstrong over 2 years ago. Updated over 2 years ago.

Status:New Start date:12/02/2015
Priority:Normal Due date:
Assignee:- % Done:


Target version:-


This previous bug has led me here:

We have a BeagleBone Black configuration currently running 4.1.13-ti-r33 using UART2 & UART4. The device tree can be found here:

We had issues with the BBB hanging when UART2 was under heavy load until we added the following lines to our overlay.

&wkup_m3 {
    status = "disabled";

&wkup_m3_ipc {
    status = "disabled";

The BBB would simply appear to hang/power off. The serial debug cable attached became unresponsive. All USR LEDs extinguished but the PWR and NIC LEDs were still active. I could not get any response from the kernel to get logs etc. On power up again the logs were void of any error and it looked like a power off of the BBB.

I can replicate this pretty frequently by generating a heavy load. Happy to share other config if needed.

I wasn't sure where to log this bug but after discovering an issue before with this I thought someone here might find it useful?


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