cma-512 crashes LE10 in RPi4 ! [SOLVED]

1st Official Post

    I've lost some hours to understand why my RPi4 started to crash at boot after installing newer le10 nightly builds.

    After some tests I've noticed that the line in distroconfig.txt:

    dtoverlay=vc4-kms-v3d,cma-512

    Is the one to blame.

    If I remove cma-512 from distroconfig.txt, Le10 works just fine.

    I have a RPi4 with 4 GB RAM.

    What could be happening ? (the previous le10 builds did not had cma-512 and also worked ok).

    No one else had the same problem ?


    Thanks :)

  • Go to Best Answer
    • Official Post
    Quote from nvdias

    If I remove cma-512 from distroconfig.txt, Le10 works just fine.

    Personally, I don't see the problem with that. I have never used cma settings in any LE release, and LibreELEC ran just fine.

    I'm not using it either!

    It simply comes with every release from the past weeks,, but my rpi4 simply crashes at boot if I have it selected.

    I have to manualy disable it, placing the sc-card in my pc and manually editing distroconfig.txt.

    Is cma-512 needed ?

    could it be possible to NOT being enabled by default ?

    thanks

    • Best Answer

    Did you by chance change gpu_mem in config.txt? If yes: don't do that, keep it at the default of 76 or you will experience crashes - LE10 needs lots of CMA memory, not GPU memory.

    so long,

    Hias

    Quote from HiassofT

    Did you by chance change gpu_mem in config.txt? If yes: don't do that, keep it at the default of 76 or you will experience crashes - LE10 needs lots of CMA memory, not GPU memory.

    so long,

    Hias

    yes !

    That was the issue.

    Thank you very much.

    Solved

    :thumbup: