Posts by rschupp

rschupp · Nightly Builds rschupp March 31, 2026 at 1:01 PM

(same as #135) LibreELEC nightly of 20290329 (git 14b0c24) crashes on my RPi4 when trying to play any MP4 video.

Log is here: https://paste.libreelec.tv/enough-lark.log

For more info, this is from a build with DEBUG=kodi,ffmpeg,Python:

Code

Thread 1 (Thread 0x7f1b7eee60 (LWP 1299)):
#0  0x0000007f96f59790 in query_formats (ctx=0x7f2a983560, cfg_in=0x0, cfg_out=0x7f1b7ed7c0) at liba
vfilter/buffersrc.c:499
#1  0x0000007f96f53250 in filter_query_formats (ctx=ctx@entry=0x7f2a983560) at libavfilter/avfilterg
raph.c:392
#2  0x0000007f96f53978 in query_formats (graph=graph@entry=0x7f2a9831a0, log_ctx=log_ctx@entry=0x0) 
at libavfilter/avfiltergraph.c:539
#3  0x0000007f96f5516c in graph_config_formats (graph=<optimized out>, log_ctx=<optimized out>) at l
ibavfilter/avfiltergraph.c:1371
#4  avfilter_graph_config (graphctx=0x7f2a9831a0, log_ctx=0x0) at libavfilter/avfiltergraph.c:1442
#5  0x0000000000dfcfb4 in CDVDVideoCodecDRMPRIME::FilterOpen (this=this@entry=0x7f151fc750, filters=
@0x7f1b7ee0d0: {_M_dataplus = {<std::allocator<char>> = {<std::__new_allocator<char>> = {<No data fi
elds>}, <No data fields>}, _M_p = 0x7f2a15c640 "deinterlace_v4l2m2m"}, _M_string_length = 19, {_M_lo
cal_buf = "\023\000\000\000\000\000\000\000r\000\000\000\000\000\000", _M_allocated_capacity = 19}},
pix_fmt=<optimized out>, pix_fmt@entry=178, test=test@entry=true) at /home/roderich/build/LibreELEC
.tv.git/build.LibreELEC-RPi4.aarch64-13.0-devel/build/kodi-a1b08ca16457d2f36e88af29e32a5965975b47ac/
xbmc/cores/VideoPlayer/DVDCodecs/Video/DVDVideoCodecDRMPRIME.cpp:856
#6  0x0000000000dfd69c in CDVDVideoCodecDRMPRIME::FilterTest (this=this@entry=0x7f151fc750, pix_fmt=
pix_fmt@entry=178) at /home/roderich/build/LibreELEC.tv.git/build.LibreELEC-RPi4.aarch64-13.0-devel/
build/kodi-a1b08ca16457d2f36e88af29e32a5965975b47ac/xbmc/cores/VideoPlayer/DVDCodecs/Video/DVDVideoC
odecDRMPRIME.cpp:681
#7  0x0000000000dfd838 in CDVDVideoCodecDRMPRIME::GetPicture (this=0x7f151fc750, pVideoPicture=0x3dd
44638) at /home/roderich/build/LibreELEC.tv.git/build.LibreELEC-RPi4.aarch64-13.0-devel/build/kodi-a
1b08ca16457d2f36e88af29e32a5965975b47ac/xbmc/cores/VideoPlayer/DVDCodecs/Video/DVDVideoCodecDRMPRIME
.cpp:1034
#8  0x0000000000e4f728 in CVideoPlayerVideo::ProcessDecoderOutput (this=this@entry=0x3dd43c30, frame
time=@0x7f1b7ee398: 33333.333333333336, pts=@0x7f1b7ee3a0: 0) at /home/roderich/build/LibreELEC.tv.g
it/build.LibreELEC-RPi4.aarch64-13.0-devel/build/kodi-a1b08ca16457d2f36e88af29e32a5965975b47ac/xbmc/
cores/VideoPlayer/VideoPlayerVideo.cpp:613
#9  0x0000000000e5079c in CVideoPlayerVideo::Process (this=0x3dd43c30) at /home/roderich/build/Libre
ELEC.tv.git/build.LibreELEC-RPi4.aarch64-13.0-devel/build/kodi-a1b08ca16457d2f36e88af29e32a5965975b4
7ac/xbmc/cores/VideoPlayer/VideoPlayerVideo.cpp:597

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rschupp

In the nightly build for aarch64 RPi4 connmand leaks socket file descriptors, just do

Code

# lsof | grep connmand 
551     /usr/sbin/connmand      0       /dev/null
551     /usr/sbin/connmand      1       /dev/null
551     /usr/sbin/connmand      2       /dev/null
551     /usr/sbin/connmand      3       anon_inode:[eventfd]
551     /usr/sbin/connmand      4       anon_inode:[signalfd]
551     /usr/sbin/connmand      5       socket:[483]
551     /usr/sbin/connmand      6       socket:[486]
551     /usr/sbin/connmand      7       /dev/urandom
551     /usr/sbin/connmand      8       anon_inode:inotify
551     /usr/sbin/connmand      9       anon_inode:inotify
551     /usr/sbin/connmand      10      socket:[504]
551     /usr/sbin/connmand      11      /dev/rfkill
551     /usr/sbin/connmand      12      socket:[6422]
551     /usr/sbin/connmand      13      socket:[674]
551     /usr/sbin/connmand      14      socket:[6438]
....

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and note the high numbers in the third column (file descriptors), wait 2 minutes and rerun to see it's increasing (until it tops out at 1024 which is the process's open file limit). I discovered that investigating after lots of messages "connmand: Failed to bind time server socket" after a few hours of uptime.

A debug log can be found at https://paste.libreelec.tv/enabled-lynx.log

I reverted just the subtree packages/network/connman to 19fa1111 "connman: dbus: Use non-deprecated installation path" and there's no leak, the number of file descriptors remains stable around 25.

rschupp

Here's another crash log, produced with a build with DEBUG=Python3,kodi

http://ix.io/3PLX

This time no Youtube involved, I just played a few minutes of a local movie, stopped it and "Reset resume position".

All my crashes, whatever the apparent activity was, show a segfault in thread 1 with identical (at least) 10 top frames, all executing python code.

rschupp

I have the same problem: Kodi crashes regularly, looks like when it tries to update some sqlite3 database. In the following crashlog Kodi crashed after I stopped viewing a Youtube video (with plugin.video.youtube). Tested with LibreELEC-RPi4.arm-11.0-nightly-20220215-f42fa56.tar

http://ix.io/3PKp

Note that the SEGFAULT occurs in /usr/lib/libpython3.9.so.1.0 and this behaviour started with the switch from python 3.8.x to 3.9.x (#6227)

I have a build with DEBUG=Python3,kodi and can reproduce the crash with that.

rschupp

Quote from HiassofT

Thanks for the log, I could reproduce the VIDIOC_DQEVENT errors and PR'ed a fix for it https://github.com/LibreELEC/LibreELEC.tv/pull/5888

Thanks, the problem is gone in LibreELEC master with your PR applied (62b201b).

rschupp

I see similar behaviour (LibreELEC-RPi4.arm-11.0-nightly-20211117-df8716a.tar):

video freezes for a few seconds while audio continues, then suddenly video catches up. When the video has finished playing the last frame is still displayed until I explicitly stop it.

http://ix.io/3Fm9

Posts by rschupp

Nightly Builds

connmand in nightly leaks socket file descriptors

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LibreELEC-RPi4.arm-11.0-nightly-20220213-fcba5db is restarting every 20 seconds

Latest build Rpi4 - Suffers pausing randomly and micro stutter video playback

Latest build Rpi4 - Suffers pausing randomly and micro stutter video playback