[RPi400] Memory leaks?

    Hi,

    since some time now Kodi crashes quite often (that's my feeling) apparently to out of memory.

    System: LibreELEC (official): 12.2.1, RPi 400 with 4GB.

    pan:~/.kodi/temp # dmesg | grep "Out of mem"
    [147606.130573] Out of memory: Killed process 1162 (kodi.bin) total-vm:5952300kB, anon-rss:3585432kB, file-rss:32kB, shmem-rss:0kB, UID:0 pgtables:8680kB oom_score_adj:0
    [262259.435914] Out of memory: Killed process 801006 (kodi.bin) total-vm:6259820kB, anon-rss:3539876kB, file-rss:76kB, shmem-rss:0kB, UID:0 pgtables:8844kB oom_score_adj:0
    [394588.835382] Out of memory: Killed process 1352004 (kodi.bin) total-vm:5993176kB, anon-rss:3610388kB, file-rss:48kB, shmem-rss:0kB, UID:0 pgtables:8520kB oom_score_adj:0
    [497543.605009] Out of memory: Killed process 1571503 (kodi.bin) total-vm:6066948kB, anon-rss:3544532kB, file-rss:304kB, shmem-rss:0kB, UID:0 pgtables:8428kB oom_score_adj:0

    For me nothing obvious in the kodi.log (but, I'm no expert).

    Are there any known problems with this setup?

    Before I upload tons of unnecessary logs: what's the best approach to pinpoint the problem?

    TIA,

    Oliver

    Put Kodi in debug mode and then run "pastekodi" to share the Kodi and system log after OOM kills Kodi again. I've also seen some OOM events in recent days; albeit on an RPi5 and RK3588 device that are running my own LE13 development images which have little in-common with the LE12.2 codebase so no guarantee it's the same issue. NB: the logs aren't going to reveal the source of the problem, but will contain info on wider Kodi configuration which might be helpful.

    The short answer is "no idea" and it's not guaranteed that what you see if the same as what I see. On my LE13 image there's 100% a bad leak, but I'm running a whole heap of experimental things that mess with DRM planes and buffers and I see the same leak on Amlogic and Rockchip (with the same patches) too. The fact nobody but you has complained before on LE12 is the main thing I find odd, as it's the kind of thing that would attract forum complaints.

    Either way, the LE13 patches need a load of reviewing and debugging and that's going to be my (Claude driven development) focus over the next week. Maybe that results in something..

    My setup is:

    RPi 400 -> Receiver Denon AVR-X2200 -> TV LQ 65QNED86A6A --> no-name Remote (china made, bought from Amazon).

    We are using the no-name Remote instead of LG's "Magic Remote", because the latter is missing some keys (for context menus etc.).

    I was checking whether it was a phone app remote as we suspect a leak via JSONRPC, but no.

    Memory leaks are always a bitch to find unless the impacted end-user happens to be a software developer with some experience of using debugging and analysis tools. I am also seeing a leak (or leaks) but given the differences between your LE12 and my heavily patched LE13 version of Kodi, it's unlikely to be the same root cause.

    /shrug

    kodi.bin .. which isn't granular enough information to be useful .. and I will end up relying on others to hunt that kind of issue down as that kind of debugging isn't something I know how to do :)

    Quote from nosen

    What process seems to be leaking? Could be identified in top via ssh for instance

    I can see the increasing memory consumption of kodi quite easily:

    Top just before the crash and right after it (only the first 10 lines shown; two crash incidents):

    But of course, that doesn't help me understand what's going on inside kodi.

    Oliver

    Hello, I'm also experiencing a nasty memory leak with LE on RPi 4B 4Gb.

    I've a similar setup as OP, where I've the RPi connected to a LG TV alongside a Denon Receiver with HDMI ARC (not sure if that's relevant, I've only just started to investigate the problem).

    I've tried setting MALLOC_ARENA_MAX=8 as mentioned in this forum but it hasn't resolved nor mitigated the problem.

    Hi!


    In the last weeks I've tried to remove addons one-by-one to see if that helps.

    Short answer: no.

    Last thing I've tried is a fresh install of 12.2.1 (manual download, dd to new [reused] SD-Card, after first boot copying my old sources.xml and the contents of the old Database folder to the new installation).

    ==> Issue persists. After approx. 20 h of normal operation (6 h Music, 1-2 h Video playback) KODI restarts due to out-of-memory. The growing memory consumption can be easily seen through the GUI).

    I have to assume something within KODI core functionalities is causing the memory leak.

    Two questions:

    a) Could a corrupted database be the cause? I'm seeing requests at my pi-hole asking for "nas-server" where the correct name should be "nas-server.lan" (and would be answerded by my router). Sometimes in the past I changed my network config (I forgot why) and I assume this DNS requests come from KODI (I can't be sure because at the pi-hole client is always my router).

    b) when trying LE13: could I copy "sources.xml" and my Database entries? Currently I'm a bit reluctant to configure everything from scratch. If it's necessary I will do it. Right know my wife is a bit unhappy with the stability of KODI ;)

    Regards,

    Oliver