cl_msgdma.ko has the wrong version

When I try to insert the cl_msgdma kernel module I get the following message.

root@mity-a5e:~# insmod cl_msgdma.ko
[426692.912739] cl_msgdma: version magic '6.12.33-g511c86cb48bf SMP preempt mod_unload aarch64' should be '6.12.33-yocto-standard-ge3e06ce5b974 SMP preempt mod_unload aarch64'
insmod: ERROR: could not insert module cl_msgdma.ko: Invalid module format

I built the module Following this
https://support.criticallink.com/redmine/projects/mitysom_a5/wiki/A5E-DMA-Example
Compile the Kernel Module
Navigate into the software/dma_example/kernel_module directory of the FPGA project. Run the following to compile the kernel module.
make

What is the proper way of building it with the right version ?
Thank you for your time,
Samuel

Replies (2)

RE: cl_msgdma.ko has the wrong version - Added by Mike Fiorenza about 20 hours ago

Hi Samuel,

The Wiki instructions say to deploy the compiled kernel and kernel modules to the SD card as well. This way you ensure that all binaries are in sync and the vermagic matches.

You can however try to work around this by making your kernel source match what was installed and get the kernel module version string to match.

# In the kernel source directory
git checkout e3e06ce5b974
echo "-yocto-standard" > localversion
make mity_a5e_devkit_defconfig
make modules_prepare

Then follow the instructions to recompile the cl_msgdma kernel module.

- Mike

RE: cl_msgdma.ko has the wrong version - Added by Samuel Paul about 17 hours ago

This way works to make a compatible version of cl_msgdma.ko. (/)

Is there a way to build it inside the docker container at the same time we build the file system.
https://support.criticallink.com/redmine/projects/mitysom_a5/wiki/Building_fs_2531pro

From inside

Launch the Docker container
docker run --rm -it -v `pwd`:/work --workdir=/work crops/poky:ubuntu-22.04 /bin/bash
Source the Yocto environment
. ./oe-init-build-env

Your help is appreciated :)
Samuel

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