<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style> </head> <body dir="ltr"> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <font size="2"><span style="font-size:11pt">Hello,</span></font></div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <font size="2"><span style="font-size:11pt"><br> </span></font></div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <font size="2"><span style="font-size:11pt">I run the application with GST_DEBUG=3 during this weekend until it crashed.<br> </span></font></div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <font size="2"><span style="font-size:11pt"><br> </span></font></div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <font size="2"><span style="font-size:11pt">According to application log, function gst_element_set_state returned GST_STATE_CHANGE_FAILURE esporadically for 15 times, indicating at these moments current state '2' and pending state '4'. In order to recover from this condition, both playbins are set to GST_STATE_NULL and removed along with their sinks and busses. After that, they are initialized again.<br> </span></font></div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <font size="2"><span style="font-size:11pt"><br> </span></font></div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <font size="2"><span style="font-size:11pt">When application is working normally GStreamer log shows these entries for each played file:</span></font></div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <font size="2"><span style="font-size:11pt"><br> </span></font></div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <font size="2"><span style="font-size:11pt"><span>18:30:42.674871594 6047 0x564ed00e04d0 ERROR gldisplay gstgldisplay_gbm.c:394:gst_gl_display_gbm_new: could not find or open DRM device<br> </span> <div>18:30:42.675286018 6047 0x564ed00e04d0 WARN glwindow gstglwindow.c:293:gst_gl_window_new: Could not create window. user specified (null), creating dummy window<br> </div> <div>18:30:42.675524993 6047 0x7f990800b850 WARN glcontext gstglcontext.c:1244:gst_gl_context_create_thread:<glcontextegl440> Failed to create context<br> </div> <div>18:30:42.675557731 6047 0x564ed00e04d0 WARN glimagesink gstglimagesink.c:1012:_ensure_gl_setup:<sink> error: Failed to initialize egl: EGL_NOT_INITIALIZED<br> </div> <div>18:30:44.127012966 6047 0x564ed00e04d0 WARN kmssink gstkmssink.c:710:gst_kms_sink_start:<block_player-actual-sink-kms> error: Could not open DRM module (NULL)<br> </div> <div>18:30:44.127049551 6047 0x564ed00e04d0 WARN kmssink gstkmssink.c:710:gst_kms_sink_start:<block_player-actual-sink-kms> error: reason: No such file or directory (2)<br> </div> <div>18:30:44.127094726 6047 0x564ed00e04d0 WARN basesink gstbasesink.c:5265:gst_base_sink_change_state:<block_player-actual-sink-kms> error: Failed to start<br> </div> <div>18:30:44.127233195 6047 0x564ed00e04d0 WARN ximagesink ximagesink.c:860:gst_x_image_sink_xcontext_get:<block_player-actual-sink-ximage> error: Could not initialise X output<br> </div> <div>18:30:44.127306216 6047 0x564ed00e04d0 WARN ximagesink ximagesink.c:860:gst_x_image_sink_xcontext_get:<block_player-actual-sink-ximage> error: Could not open display<br> </div> <div>18:30:44.127477253 6047 0x564ed00e04d0 WARN waylandsink gstwaylandsink.c:333:gst_wayland_sink_find_display:<block_player-actual-sink-wayland> warning: Could not initialise Wayland output<br> </div> <div>18:30:44.127492154 6047 0x564ed00e04d0 WARN waylandsink gstwaylandsink.c:333:gst_wayland_sink_find_display:<block_player-actual-sink-wayland> warning: Failed to create GstWlDisplay: 'Failed to connect to the wayland display '(default)''<br> </div> <div>18:30:44.128254776 6047 0x564ed00e04d0 WARN basesrc gstbasesrc.c:3583:gst_base_src_start_complete:<source> pad not activated yet<br> </div> <div>18:30:44.128461166 6047 0x564ed00e04d0 WARN basesrc gstbasesrc.c:3583:gst_base_src_start_complete:<source> pad not activated yet<br> </div> <div>18:30:44.138282198 6047 0x564ed046d9e0 WARN oggdemux gstoggdemux.c:3374:gst_ogg_demux_do_seek:<'':src_00000156> Locking on pts 0:00:00.267029478<br> </div> <div>18:35:24.572183260 6047 0x7f999402e2f0 ERROR jackclient gstjackaudioclient.c:35:jack_log_error: Cannot use real-time scheduling (RR/5)(1: Operation not permitted)<br> </div> <div>18:35:24.572281787 6047 0x7f999402e2f0 ERROR jackclient gstjackaudioclient.c:35:jack_log_error: JackClient::AcquireSelfRealTime error<br> </div> <span></span><br> </span></font></div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <font size="2"><span style="font-size:11pt">And before application crash GStreamer log shows the following:</span></font></div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <font size="2"><span style="font-size:11pt"><br> </span></font></div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <font size="2"><span style="font-size:11pt"><span>20:57:41.623603398 6047 0x564ed00e04d0 ERROR gldisplay gstgldisplay_gbm.c:394:gst_gl_display_gbm_new: could not find or open DRM device<br> </span> <div>20:57:41.624202720 6047 0x564ed00e04d0 WARN glwindow gstglwindow.c:293:gst_gl_window_new: Could not create window. user specified (null), creating dummy window<br> </div> <div>20:57:41.624627895 6047 0x7f99140341e0 WARN glcontext gstglcontext.c:1244:gst_gl_context_create_thread:<glcontextegl492> Failed to create context<br> </div> <div>20:57:41.624693999 6047 0x564ed00e04d0 WARN glimagesink gstglimagesink.c:1012:_ensure_gl_setup:<sink> error: Failed to initialize egl: EGL_NOT_INITIALIZED<br> </div> <div>20:57:41.624892760 6047 0x564ed00e04d0 WARN GST_POLL gstpoll.c:724:gst_poll_new: 0x7f9908075e30: can't create socket pair !<br> </div> <div>20:57:43.093096309 6047 0x564ed00e04d0 WARN kmssink gstkmssink.c:710:gst_kms_sink_start:<block_player-actual-sink-kms> error: Could not open DRM module (NULL)<br> </div> <div>20:57:43.093234080 6047 0x564ed00e04d0 WARN kmssink gstkmssink.c:710:gst_kms_sink_start:<block_player-actual-sink-kms> error: reason: No such file or directory (2)<br> </div> <div>20:57:43.093286507 6047 0x564ed00e04d0 WARN basesink gstbasesink.c:5265:gst_base_sink_change_state:<block_player-actual-sink-kms> error: Failed to start<br> </div> <div>20:57:43.093444156 6047 0x564ed00e04d0 WARN ximagesink ximagesink.c:860:gst_x_image_sink_xcontext_get:<block_player-actual-sink-ximage> error: Could not initialise X output<br> </div> <div>20:57:43.093457276 6047 0x564ed00e04d0 WARN ximagesink ximagesink.c:860:gst_x_image_sink_xcontext_get:<block_player-actual-sink-ximage> error: Could not open display<br> </div> <div>20:57:43.093595345 6047 0x564ed00e04d0 WARN waylandsink gstwaylandsink.c:333:gst_wayland_sink_find_display:<block_player-actual-sink-wayland> warning: Could not initialise Wayland output<br> </div> <div>20:57:43.093616205 6047 0x564ed00e04d0 WARN waylandsink gstwaylandsink.c:333:gst_wayland_sink_find_display:<block_player-actual-sink-wayland> warning: Failed to create GstWlDisplay: 'Failed to connect to the wayland display '(default)''<br> </div> <div><br> </div> <div>(aras-daemon:6047): GStreamer-CRITICAL **: 10:51:51.763: gst_poll_free: assertion 'set != NULL' failed<br> </div> <div>20:57:43.094474883 6047 0x564ed00e04d0 WARN basesrc gstbasesrc.c:3583:gst_base_src_start_complete:<source> pad not activated yet<br> </div> <div>20:57:43.094749347 6047 0x564ed00e04d0 WARN basesrc gstbasesrc.c:3583:gst_base_src_start_complete:<source> pad not activated yet<br> </div> <div>20:57:43.107795330 6047 0x7f998c075800 WARN oggdemux gstoggdemux.c:3374:gst_ogg_demux_do_seek:<'':src_000003ac> Locking on pts 0:00:00.236553287<br> </div> <div>21:02:13.348965610 6047 0x7f999402e2f0 ERROR jackclient gstjackaudioclient.c:35:jack_log_error: Cannot use real-time scheduling (RR/5)(1: Operation not permitted)<br> </div> <div>21:02:13.349149897 6047 0x7f999402e2f0 ERROR jackclient gstjackaudioclient.c:35:jack_log_error: JackClient::AcquireSelfRealTime error<br> </div> <div>21:02:13.426663551 6047 0x564ed00e04d0 WARN gleglgbm gstgl_gbm_utils.c:472:gst_gl_gbm_find_and_open_drm_node: Found no matching DRM devices<br> </div> <div>21:02:13.426768343 6047 0x564ed00e04d0 ERROR gldisplay gstgldisplay_gbm.c:394:gst_gl_display_gbm_new: could not find or open DRM device<br> </div> <div>21:02:13.429673751 6047 0x564ed00e04d0 WARN glwindow gstglwindow.c:293:gst_gl_window_new: Could not create window. user specified (null), creating dummy window<br> </div> <div><br> </div> <div>(aras-daemon:6047): GLib-ERROR **: 10:56:22.099: Creating pipes for GWakeup: Too many open files<br> </div> <span></span></span></font></div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <br> </div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> With this information, could you get an idea of what is happening?<br> </div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <br> <font size="2"><span style="font-size:11pt"></span></font></div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <font size="2"><span style="font-size:11pt">Best regards and thank you in advance,</span></font></div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <font size="2"><span style="font-size:11pt">Erasmo<br> </span></font></div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <font size="2"><span style="font-size:11pt"><br> </span></font></div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <font size="2"><span style="font-size:11pt">Le mardi 26 mai 2020 ? 22:49 +0000, <span> Erasmo</span> Alonso Iglesias a ?crit :<br> > Hello,<br> > <br> > The ARAS radio automation system uses two <span>GStreamer</span> playbin elements in order<br> > to play media continuously. Every time a new file has to be played, state is<br> > changed from GST_STATE_READY to GST_STATE_PLAYING.<br> > <br> > Function gst_element_set_state is used to set state GST_STATE_PLAYING from<br> > state GST_STATE_READY. It usually returns GST_STATE_CHANGE_SUCCESS and<br> > everything works fine. However, in some systems after a number of played files<br> > it returns GST_STATE_CHANGE_FAILURE, and after that it seems not possible to<br> > perform more state transitions without getting a GST_STATE_CHANGE_FAILURE<br> > again.<br> > <br> > Anybody knows how to prevent this condition or recover from it?<br> <br> At very minimum, you should transition to NULL if you have hit such an error.<br> Though, for best help, we'd need some debgging traces, maybe try setting<br> GST_DEBUG=3 to start with and sharing what you see ?<br> <br> > <br> > libgstreamer1.0-0:amd64 version 1.14.4-1 <br> <br> Would be nice to bump your distro to latest 1.14, which is .6. Or maybe give a<br> try and Debian 9 to see if the issue is still present.<br> <br> > Linux version 4.19.0-9-rt-amd64 (debian-kernel@lists.debian.org) (gcc version<br> > 8.3.0 (Debian 8.3.0-6)) #1 SMP PREEMPT RT Debian 4.19.118-2 (2020-04-29)<br> > <br> > Best regards and thank you in advance,<br> > <span>Erasmo</span><br> > <br> > <br> > _______________________________________________<br> > <span>gstreamer</span>-devel mailing list<br> > <span>gstreamer</span>-devel@lists.freedesktop.org<br> > <a href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank" rel="noopener noreferrer" style=""> https://lists.freedesktop.org/mailman/listinfo/<span>gstreamer</span>-devel</a><br> <br> <br> <br> ------------------------------<br> <br> Subject: Digest Footer<br> <br> _______________________________________________<br> <span>gstreamer</span>-devel mailing list<br> <span>gstreamer</span>-devel@lists.freedesktop.org<br> <a href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank" rel="noopener noreferrer" style="">https://lists.freedesktop.org/mailman/listinfo/<span>gstreamer</span>-devel</a></span></font><br> </div> </body> </html>