[Buildroot-users] Modules not loaded at runtime after upgrade to 2025.02

[Mauricio Vidal Astudillo]

Hi everyone,

After upgrading my Buildroot configuration from 2024.02 to 2025.02,
I've noticed that the Raspberry Pi no longer loads its kernel modules
automatically at runtime.

However, once I manually run `depmod -a` on the device, the modules
are then loaded correctly on subsequent reboots, as originally
expected. This suggests that BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_EUDEV
is functioning correctly.

Although this is a bit beyond my current understanding, I tried
reviewing the changes to linux.mk over the past year, particularly
around the LINUX_RUN_DEPMOD target, which I believe is responsible for
generating the module dependency map. I didn’t find anything obvious,
aside from some changes related to DTS handling.

I also upgraded the kernel from 6.1 to 6.12, but my search hasn't
turned up anything relevant on this front either.

Could someone shed some light on what might be happening here?

Thanks in advance,

MAURICIO VIDAL