<err> os: ***** BUS FAULT ***** STM32U575

[zafersn]

[00:00:10.575,000] <err> os: ***** BUS FAULT *****
[00:00:10.575,000] <err> os:   Precise data bus error
[00:00:10.575,000] <err> os:   BFAR Address: 0x0
[00:00:10.575,000] <err> os: r0/a1:  0x08024cd8  r1/a2:  0x00000000  r2/a3:  0x2000a338
[00:00:10.575,000] <err> os: r3/a4:  0x2000a324 r12/ip:  0x0000294f r14/lr:  0x08001009
[00:00:10.575,000] <err> os:  xpsr:  0x41000200
[00:00:10.575,000] <err> os: Faulting instruction address (r15/pc): 0x0800450e
[00:00:10.575,000] <err> os: >>> ZEPHYR FATAL ERROR 25: Unknown error on CPU 0
[00:00:10.575,000] <err> os: Current thread: 0x20004940 (main)
[00:00:10.741,000] <err> fatal_error: Resetting system

When I call this function with the CONFIG_NET_SOCKETS_OFFLOAD=y:

err = getaddrinfo(CONFIG_MQTT_BROKER_HOSTNAME, NULL, &hints, &result);
I have a bus fault for some reason.

I have a sierra wireless hl7800 modem and am trying to communicate with the nucleo_stm32u575zi board.
Using \zephyr\drivers\modem\hl7800.c Lib.

Can someone shed some light on this issue? How can I fix it?

[nordicjm]

@rerickson1

[rerickson1]

The HL7800 driver uses CONFIG_NET_OFFLOAD. Please try using without CONFIG_NET_SOCKETS_OFFLOAD