I am working on a project to getting data from serial device and transmit it to web. I am using kernel 3.2.27 with busybox few start up scripts like sysfs and proc, wvdial daemon to dial USB modem for internet connection and a Java program which fetch data from serial line (/dev/ttyUSB3). I am using
RS485-USB converter. I am using few modules like
usbserial, ftdi_sio, usb_wwan, option and ppp. My input voltage is 5.45V and 2A.
All my set up running fine but after 3~4 hours my device freezes. I don't know why this strange problem is happening. Only a few process are running on the PI. Sometimes I am getting a message like
__alloc_pages_nodemask error code 22.
Can anyone guide me to resolve my issue.