stm32g0: Device hang/hard fault with AT45 + `CONFIG_PM_DEVICE`

[ycsin]

Describe the bug
I'm trying to rebase to the latest main from v2.7.0 RC3, but I encountered hard fault with my custom application on init:

I: Jumping to the first image slot


[00:00:00.004,000] <err> os: r0/a1:  0x00000004  r1/a2:  0x000000ba  r2/a3:  0x2000954e
[00:00:00.004,000] <err> os: r3/a4:  0x0802e875 r12/ip:  0x00000000 r14/lr:  0x0802e87d
[00:00:00.004,000] <err> os:  xpsr:  0x21000000
[00:00:00.004,000] <err> os: Faulting instruction address (r15/pc): 0x08035498
[00:00:00.004,000] <err> os: >>> ZEPHYR FATAL ERROR 4: Kernel panic on CPU 0
[00:00:00.004,000] <err> os: Current thread: 0x20003110 (idle 00)
[00:00:00.055,000] <err> os: Halting system

I'm using a STM32G0B1RE custom board with CONFIG_SPI_FLASH_AT45 enabled in the _defconfig by default.

I tried to compile the vanilla (with bootloader) hello_world & AT45 sample, they both work fine. However if I enable CONFIG_PM & CONFIG_PM_DEVICE in the hello_world example, then the device will hard fault and halt inside here (Zephyr didn't print anything).

I tried to increase the IDLE thread stack size to 1024, and now PM is suspending and resuming the AT45 driver repeatedly.

To Reproduce
Steps to reproduce the behavior:

1. Build hello_world sample (with bootloader & AT45 driver)
2. See error

Environment (please complete the following information):

• OS: Windows 11
• GNUARMEMB
• Latest main (3.0.0 RC2)

Extra context

• samples\boards\stm32\power_mgmt\blinky works fine without AT45 driver.

[ABOSTM]

Hi @ycsin,
It looks similar to #42627
Can you check the proposed fix: #42637 ?

[ABOSTM]

@ycsin
Is issue solved ?

[ycsin]

@ycsin Is issue solved ?

Hi, sorry for the delay in response. We had decided stay on the 2.7LTS version instead on the latest main branch for the sake of stability, I can't really test this anymore.