Control: reassign 967941 libopenblas0-pthread 0.3.10+ds-2 Control: affects 967941 + nautilus totem
On Thu, 22 Oct 2020 at 21:31:41 +0200, Thorsten Ehlers wrote: > So I dug a little bit deeper into this bug Please include some context in replies to bugs: package maintainers will usually see your messages out of context. For the libopenblas0-pthread maintainers: the original bug report is that h.264 video files were not thumbnailed successfully by GNOME's Nautilus file manager. The actual thumbnailing is delegated to totem-video-thumbnailer, from the totem package. I can reproduce this with the sample videos from the original bug report after installing libopenblas0-pthread. After removing libopenblas0-pthread, the alternative switches to /usr/lib/x86_64-linux-gnu/atlas/libblas.so.3 and the thumbnailer works again. Steps to reproduce: $ sudo apt install totem libopenblas0-pthread youtube-dl $ youtube-dl https://www.youtube.com/watch?v=LTvFsTbyILg $ youtube-dl https://www.youtube.com/watch?v=l7GX_XII2K0 $ totem-video-thumbnailer -v Yosemite\ Nature\ Drone\ Video-LTvFsTbyILg.webm tmp.png (succeeds) $ totem-video-thumbnailer -v Beautiful\ Nature\ 1080p.-l7GX_XII2K0.mkv tmp.png Output: TotemVideoThumbnailer-Message: 22:02:21.412: Initialised libraries, about to create video widget TotemVideoThumbnailer-Message: 22:02:21.436: setting URI file:///home/smcv/tmp/Beautiful%20Nature%201080p.-l7GX_XII2K0.mkv TotemVideoThumbnailer-Message: 22:02:21.437: Video widget created TotemVideoThumbnailer-Message: 22:02:21.437: About to open video file TotemVideoThumbnailer-Message: 22:02:21.713: Checking whether file has cover TotemVideoThumbnailer-Message: 22:02:21.713: Opened video file: 'Beautiful Nature 1080p.-l7GX_XII2K0.mkv' TotemVideoThumbnailer-Message: 22:02:21.713: About to seek to 0.333333 TotemVideoThumbnailer-Message: 22:02:21.757: About to get frame for iter 0 (totem-video-thumbnailer:98347): GStreamer-WARNING **: 22:02:21.758: failed to create thread: Error creating thread: Resource temporarily unavailable (totem-video-thumbnailer:98347): GLib-ERROR **: 22:02:21.763: ../../../glib/gmem.c:112: failed to allocate 3145167 bytes [1] 98347 trace trap (core dumped) totem-video-thumbnailer -v Beautiful\ Nature\ 1080p.-l7GX_XII2K0.mkv tmp.png > and in my case it turned out > the real problem is libopenblas0-pthread version 0.3.10+ds-2 and -3. > > This package is a dependency of libopenblas0 which is a dependency of Octave > and others. > > Creating a thumbnail with totem-video-thumbnailer fails for flv and mkv > videos like that one mentioned by the OP: > > (totem-video-thumbnailer:37500): GStreamer-WARNING **: 21:23:41.129: failed > to create thread: Error creating thread: Die Ressource ist zur Zeit nicht > verfügbar > > (totem-video-thumbnailer:37500): GLib-ERROR **: 21:23:41.131: > ../../../glib/gmem.c:112: failed to allocate 3145167 bytes > Trace/Breakpoint ausgelöst > > Installing libopenblas0-pthread_0.3.10+ds-1 or adding the -l option in > /usr/share/thumbnailers/totem.thumbnailer works > around this bug. The -l option is documented to disable the time limit for thumbnail generation (the default is that totem-video-thumbnailer gives up after 30 seconds). This is implemented as a watchdog thread. Perhaps the watchdog thread and whatever threads are used by libopenblas0-pthread, together, are enough to exceed a memory limit? totem seems to set its RLIMIT_DATA to 512M plus the size of the file. smcv
