In the meantime there are three threads regarding the same problem:
www.zedboard.org/content/linux-crash-after-pl-loadttjeffallred
www.zedboard.org/content/communicate-pl-linux-psttdeaxman
www.zedboard.org/content/it-possible-program-pl-linux-running-ps-after-linux-have-bootedtyyliang
Is it possible to bring all together to find a solution for this?
Is there any info from Xilinx?