Music and ttyUSB results in Kernel Panic

[overrider]

Hi there,

i spend some time troubleshooting a kernel panic i am expiriencing on a Raspberry Pi. Basically i have it down to the following steps to reliably kernel panic my system:

1. Play music via mpd+mpc (also tried cmus, same)
2. Access a serial device, for example like this: screen /dev/ttyUSB0 9600

Basically as soon i run the screen command, a few seconds later i get a Kernel Panic. I have tried a lot of things to solve this so far, namely i tried different Raspberry Pi's, different USB to Serial Cables, different SD Cards, different MP3 Files, and also tried an Arduino instead of a Serial Cable. I also tried with no Device connected to a Serial2USB Cable, same. I also measured the Voltage between TP1 and TP2, and its a solid 4.9V even when putting some load onto the system.

Either command on its own, either listening to music, OR accessing a serial device, works fine. Just not together. After some searching, i found another SDCARD with Kernel 3.6.11-18-ARCH, which did not have this Problem no matter what i tried. I then upgraded that system using pacman -Syu, and after a reboot the problem appeared immediately. The current Kernel that i am using is 3.10.25-1-ARCH.

I don't have a serial Cable i can hookup to the RPI to get a proper traceback, but i made two pictures at two different panics, as attached.

Thanks a lot for any insights, workarounds, or things i could try to help investigating further!

[overrider]

And here the second Picture i took...

[moonman]

You should report it upstream: https://github.com/raspberrypi/linux/issues?state=open