Application crash during display camera live with overlay text and image

Hi,

I am facing the issue of C++ application getting crashed (1 time out of 5 on power off/on the instrument) when I am playing GStreamer pipeline with overlay text and image. below is my source for pipeline and also where my application getting crashed.

void StartCameraWithOverlay() { gst_init (NULL, NULL); QString sCapture = "imxv4l2videosrc device=/dev/video0 fps-n=30 imx-capture-mode=0 ! textoverlay name=overlay text=\"Overlaytext here\" valignment=top halignment=left font-desc=\"Sans, 22\" shaded-background=true ! gdkpixbufoverlay name=imageoverlay location=/home/user/CamOverlay.png offset-x=220 offset-y=190 " IMAGE_OVERLAY " ! imxg2dvideotransform ! imxg2dvideosink framebuffer=/dev/fb1 use-vsync=true sync=false";

pipeline =  gst_parse_launch(sCapture.toStdString().c_str(), NULL);

GstStateChangeReturn setstate = gst_element_set_state (pipeline, GST_STATE_PLAYING); // return 2 means GST_STATE_CHANGE_ASYNC
/* wait until it's up and running or failed */
GstStateChangeReturn getstate = gst_element_get_state (pipeline, NULL, NULL, -1); //Application getting crashed here first time when powered on.

}

some times i am getting below error during crash: Alignment trap: not handling instruction f4024aef at [<67bf02fc>] Unhandled fault: alignment exception (0x811) at 0x720519a8 pgd = a9508000 [720519a8] pgd=38d37831, pte=3134775f, *ppte=31347c7f

It's very hard to debug this crash and not able to find out the issue.

Please help me how to debug it or prevent the crash and is there any way to catch this exception in C++?

I am using im6 dualite SOM with Debian stretch 9.5 with Linux kernel 4.9.88.

Thanks, Jignesh

Freescale / gstreamer-imx

Application crash during display camera live with overlay text and image #272