Yun with autobahn 0.8, wlan and ethernet crash after few hours

Hi,

I need help to investigate the following problem:
I use in my project autobahn to communicate with python on linux side asynchron.
Sometimes Yun is not reachable over wlan, if I connect in this case wired ethernet, I will see the connection on the router, but I cannot connect via putty and connection over ip via browser is also not possible. but linux is working partly, because the python script ist running, because linux is responding on the serial interface to the 32u4.

If I reset the linux (hardreset) everything works fine for several hours or days, then it crashes again.
What can I do, to investigate the problem. Are there logfiles activable to see the history after the crash?

Upgrade to latest OS, Please upgrade your Yún - latest is 1.5.3

http://forum.arduino.cc/index.php?topic=279008.0

Yun uses ar9331 which made by qualcomm has wireless radio interferes with the USB clock PLL after few hours (hardware bug). qualcomm release patch to work around it. the new OS include that patch.

Upgrade to latest of autobahn (0.9.1)

http://tavendo.com/blog/post/arduino-yun-with-autobahn/

Disable wifi, only test it at ethernet:

http://forum.arduino.cc/index.php?topic=188821.msg1399080#msg1399080

Monitor Memory usage:

turn on swap partition for test.

BETA Disk space expander now features swap partition

http://forum.arduino.cc/index.php?topic=278332.0