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getaddrinfo crashes after some time

Dear Community;

I have a NRF9160 DK. I have flashed a program to it, and it works fine. The program connects to LTE every 10 minutes to send some data over HTTP. However, after 1 day working:

err = getaddrinfo(host_name, NULL, &hints, &res);

that line crashed:

Exception occurred in Secure State
***** HARD FAULT *****
  Fault escalation (see below)
***** BUS FAULT *****
  Precise data bus error
  BFAR Address: 0x50008120
***** Hardware exception *****
Current thread ID = 0x200201a8
Faulting instruction address = 0x29d34
Fatal fault in ISR! Spinning...

What is causing the fault?

This is my prj.conf file:

CONFIG_BSD_LIBRARY=y
CONFIG_GPIO=y
CONFIG_SERIAL=y
CONFIG_STDOUT_CONSOLE=y
CONFIG_UART_INTERRUPT_DRIVEN=n
CONFIG_TEST_RANDOM_GENERATOR=y
CONFIG_NETWORKING=y
CONFIG_NET_BUF_USER_DATA_SIZE=1
CONFIG_NET_SOCKETS_OFFLOAD=y
CONFIG_NET_SOCKETS=y
CONFIG_NET_SOCKETS_POSIX_NAMES=y
CONFIG_NET_RAW_MODE=y
CONFIG_TRUSTED_EXECUTION_NONSECURE=y
CONFIG_LOG=n
CONFIG_LOG_DEFAULT_LEVEL=4
CONFIG_NEWLIB_LIBC=y
CONFIG_REBOOT=y

# AT host
CONFIG_AT_HOST_LIBRARY=n

# LTE link control
CONFIG_LTE_LINK_CONTROL=y
CONFIG_LTE_AUTO_INIT_AND_CONNECT=n

# Heap and stacks
CONFIG_HEAP_MEM_POOL_SIZE=8192
CONFIG_MAIN_STACK_SIZE=16384

# Disable native network stack to save some memory
CONFIG_NET_IPV4=n
CONFIG_NET_IPV6=n
CONFIG_NET_UDP=n
CONFIG_NET_TCP=n

# ADC
CONFIG_ADC=y
CONFIG_ADC_0=y
CONFIG_ADC_NRFX_SAADC=y

#Flash memory
CONFIG_FLASH=y
CONFIG_FLASH_PAGE_LAYOUT=y
CONFIG_NVS=y
CONFIG_NVS_LOG_LEVEL_DBG=y
CONFIG_MPU_ALLOW_FLASH_WRITE=y

I am using ncs tag 0.4.0

Any idea or suggestion is welcomed!

Thanks.

Parents Reply
  • Hi,

    You are right, I didn't realize that I init more than one the LTE Link Control. Unfortunately, that didn't solve the problem, and after the first cycle it gets stuck at connect() function forever.

    Did you manage to get work my project after making the changes you mentioned? If so, which version of NCS tag and modem firmware are you using?

    I am really confused why such a simple project works in NCS tag 0.4.0 and not in 1.2.0.

    Thanks for your help.

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