I compiled git (commit 45a8ba3455cf252332c03533a7590df5267ce9aa) and tried this version Loaded 180p60 video, set project to RGBA-Float, set fader to some 70% Star playback = OK Fast playback = OK Fast reverse playback = crash after some time (from around 2 min on timeline back to very start) LANG=ru_RU.utf8 DRI_PRIME=1 cin Cinelerra Infinity - built: Sep 12 2020 19:20:27 git://git.cinelerra-gg.org/goodguy/cinelerra.git (c) 2006-2019 Heroine Virtual Ltd. by Adam Williams 2007-2020 mods for Cinelerra-GG by W.P.Morrow aka goodguy Cinelerra is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. There is absolutely no warranty for Cinelerra. RenderFarmClient::main_loop: client started FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Jean_Louis_dolphin_and_mirror.avi FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Jean_Louis_dolphin_and_mirror.avi FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Jean_Louis_dolphin_and_mirror.avi FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Jean_Louis_dolphin_and_mirror.avi FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Jean_Louis_dolphin_and_mirror.avi FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Jean_Louis_dolphin_and_mirror.avi FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Jean_Louis_dolphin_and_mirror.avi FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Jean_Louis_dolphin_and_mirror.avi FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Jean_Louis_dolphin_and_mirror.avi FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Jean_Louis_dolphin_and_mirror.avi FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Jean_Louis_dolphin_and_mirror.avi FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Jean_Louis_dolphin_and_mirror.avi FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Jean_Louis_dolphin_and_mirror.avi FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Jean_Louis_dolphin_and_mirror.avi FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Jean_Louis_dolphin_and_mirror.avi FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Swimming with orca in New Zealand-JQ3mDXF3bcE.mkv FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Swimming with orca in New Zealand-JQ3mDXF3bcE.mkv FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Swimming with orca in New Zealand-JQ3mDXF3bcE.mkv FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Swimming with orca in New Zealand-JQ3mDXF3bcE.mkv FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Swimming with orca in New Zealand-JQ3mDXF3bcE.mkv FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Swimming with orca in New Zealand-JQ3mDXF3bcE.mkv FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Swimming with orca in New Zealand-JQ3mDXF3bcE.mkv FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Swimming with orca in New Zealand-JQ3mDXF3bcE.mkv FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Swimming with orca in New Zealand-JQ3mDXF3bcE.mkv FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Swimming with orca in New Zealand-JQ3mDXF3bcE.mkv FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Swimming with orca in New Zealand-JQ3mDXF3bcE.mkv FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Swimming with orca in New Zealand-JQ3mDXF3bcE.mkv FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Swimming with orca in New Zealand-JQ3mDXF3bcE.mkv AudioALSA::write_buffer err -32(Обрыв канала) at sample 368839 ** segv at 0x884441a in pid 23242, tid 23470 writing debug data to /tmp/cinelerra_23242.dmp lock_items: 25 lock_frees: 12 ** dump complete Ошибка сегментирования guest@slax:/dev/shm$ less /tmp/cinelerra_23242.dmp guest@slax:/dev/shm$ LANG=ru_RU.utf8 DRI_PRIME=1 cin Cinelerra Infinity - built: Sep 12 2020 19:20:27 git://git.cinelerra-gg.org/goodguy/cinelerra.git (c) 2006-2019 Heroine Virtual Ltd. by Adam Williams 2007-2020 mods for Cinelerra-GG by W.P.Morrow aka goodguy Cinelerra is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. There is absolutely no warranty for Cinelerra. RenderFarmClient::main_loop: client started FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Swimming with orca in New Zealand-JQ3mDXF3bcE.mkv FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Swimming with orca in New Zealand-JQ3mDXF3bcE.mkv FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Swimming with orca in New Zealand-JQ3mDXF3bcE.mkv FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Swimming with orca in New Zealand-JQ3mDXF3bcE.mkv FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Swimming with orca in New Zealand-JQ3mDXF3bcE.mkv FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Swimming with orca in New Zealand-JQ3mDXF3bcE.mkv FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Swimming with orca in New Zealand-JQ3mDXF3bcE.mkv FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Swimming with orca in New Zealand-JQ3mDXF3bcE.mkv FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Swimming with orca in New Zealand-JQ3mDXF3bcE.mkv FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Swimming with orca in New Zealand-JQ3mDXF3bcE.mkv FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Swimming with orca in New Zealand-JQ3mDXF3bcE.mkv ** segv at 0xf69ee694 in pid 23622, tid 23750 writing debug data to /tmp/cinelerra_23622.dmp lock_items: 25 lock_frees: 11 AudioALSA::write_buffer err -32(Обрыв канала) at sample 627450 ** dump complete Ошибка сегментирования