[FS#606] Stall on Mediatek

LEDE Bugs lede-bugs at lists.infradead.org
Wed Mar 8 08:02:45 PST 2017


A new Flyspray task has been opened.  Details are below. 

User who did this - Karoly Kovacs (karesch) 

Attached to Project - LEDE Project
Summary - Stall on Mediatek
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Medium
Priority - Very Low
Reported Version - lede-17.01
Due in Version - Undecided
Due Date - Undecided
Details - On D-Link DIR-860L B1, processor MediaTek MT7621
LEDE 17.01.0

The system used connected to WAN and wifi is used (ac and n). WDS is also used (as server) and SQM is used on WAN. Only the WAN switch port is used.

After random time wifi is disconnected and connected again, can be seen in the log as: WARNING: CPU: 1 PID: 0 at net/core/skbuff.c:4194. However, after some time, which can be minutes or days wifi totally disconnects, and even DHCP does nor work on the LAN ports. The log shows: INFO: rcu_sched self-detected stall on CPU. Only a reboot can help. Sometimes the device reboots by itself.


The above could not be linked to any event (wifi connection, change in sqm settings, etc).

Switched back to Openwrt 15.05.1. 

A similar issue was reported here: [[https://forum.lede-project.org/t/build-for-the-d-link-dir-860l/948|External Link]]

One or more files have been attached.

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=606



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