Thanks. Following is the attached log from gdb. BTW I have same problem with 02_video_dec_cuda too.
ubuntu@tegra-ubuntu:~/tegra_multimedia_api/samples/00_video_decode$ gdb video_decode
GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.5) 7.11.1
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "aarch64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from video_decode...done.
(gdb) set args cars.mp4 H264
(gdb) run
Starting program: /home/ubuntu/tegra_multimedia_api/samples/00_video_decode/video_decode cars.mp4 H264
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/aarch64-linux-gnu/libthread_db.so.1".
Set governor to performance before enabling profiler
Failed to query video capabilities: Inappropriate ioctl for device
NvMMLiteOpen : Block : BlockType = 261
TVMR: NvMMLiteTVMRDecBlockOpen: 7907: NvMMLiteBlockOpen
[New Thread 0x7fb6b3b1e0 (LWP 7863)]
[New Thread 0x7fb633b1e0 (LWP 7864)]
[New Thread 0x7fb5b3b1e0 (LWP 7865)]
[New Thread 0x7fb533b1e0 (LWP 7866)]
NvMMLiteBlockCreate : Block : BlockType = 261
Failed to query video capabilities: Inappropriate ioctl for device
[New Thread 0x7fafead1e0 (LWP 7867)]
[New Thread 0x7faf6ad1e0 (LWP 7868)]
Starting decoder capture loop thread
Input file read complete
TVMR: NvMMLiteTVMRDecDoWork: 6768: NVMMLITE_TVMR: EOS detected
TVMR: TVMRBufferProcessing: 5723: Processing of EOS
TVMR: TVMRBufferProcessing: 5800: Processing of EOS Done
Thread 6 "video_decode" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fafead1e0 (LWP 7867)]
0x0000007fb71eefb0 in NvMMQueueGetNumEntries () from /usr/lib/aarch64-linux-gnu/tegra/libnvmm_utils.so
(gdb) where
#0 0x0000007fb71eefb0 in NvMMQueueGetNumEntries () from /usr/lib/aarch64-linux-gnu/tegra/libnvmm_utils.so
#1 0x0000007fb72bb048 in ?? () from /usr/lib/aarch64-linux-gnu/tegra/libtegrav4l2.so
#2 0x0000007fb76d66dc in ?? () from /usr/lib/aarch64-linux-gnu/tegra/libnvos.so
#3 0x0000007fb7f84fc4 in start_thread (arg=0x7fb76d66a0) at pthread_create.c:335
#4 0x0000007fb7b47290 in thread_start () at ../sysdeps/unix/sysv/linux/aarch64/clone.S:89
(gdb)
I don’t know if there are debug symbols in libnvmm_utils.so, but if you can switch to frame 0 (“f 0”), and then list the source (“l”), it may provide insight into a specific block of code which went bad.
Thanks linuxdev for your help. libnvmm_utils.so does seem to have debug info.
ubuntu@tegra-ubuntu:~/tegra_multimedia_api/samples/00_video_decode$ gdb video_decode
GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.5) 7.11.1
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "aarch64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from video_decode...done.
(gdb) set args cars.mp4 H264
(gdb) run
Starting program: /home/ubuntu/tegra_multimedia_api/samples/00_video_decode/video_decode cars.mp4 H264
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/aarch64-linux-gnu/libthread_db.so.1".
Set governor to performance before enabling profiler
Failed to query video capabilities: Inappropriate ioctl for device
NvMMLiteOpen : Block : BlockType = 261
TVMR: NvMMLiteTVMRDecBlockOpen: 7907: NvMMLiteBlockOpen
[New Thread 0x7fb6b3b1e0 (LWP 17754)]
[New Thread 0x7fb633b1e0 (LWP 17755)]
[New Thread 0x7fb5b3b1e0 (LWP 17756)]
[New Thread 0x7fb533b1e0 (LWP 17757)]
NvMMLiteBlockCreate : Block : BlockType = 261
Failed to query video capabilities: Inappropriate ioctl for device
[New Thread 0x7fafead1e0 (LWP 17758)]
[New Thread 0x7faf6ad1e0 (LWP 17759)]
Starting decoder capture loop thread
Input file read complete
TVMR: NvMMLiteTVMRDecDoWork: 6768: NVMMLITE_TVMR: EOS detected
TVMR: TVMRBufferProcessing: 5723: Processing of EOS
TVMR: TVMRBufferProcessing: 5800: Processing of EOS Done
Thread 6 "video_decode" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fafead1e0 (LWP 17758)]
0x0000007fb71eefb0 in NvMMQueueGetNumEntries () from /usr/lib/aarch64-linux-gnu/tegra/libnvmm_utils.so
(gdb) where
#0 0x0000007fb71eefb0 in NvMMQueueGetNumEntries () from /usr/lib/aarch64-linux-gnu/tegra/libnvmm_utils.so
#1 0x0000007fb72bb048 in ?? () from /usr/lib/aarch64-linux-gnu/tegra/libtegrav4l2.so
#2 0x0000007fb76d66dc in ?? () from /usr/lib/aarch64-linux-gnu/tegra/libnvos.so
#3 0x0000007fb7f84fc4 in start_thread (arg=0x7fb76d66a0) at pthread_create.c:335
#4 0x0000007fb7b47290 in thread_start () at ../sysdeps/unix/sysv/linux/aarch64/clone.S:89
(gdb) f 0
#0 0x0000007fb71eefb0 in NvMMQueueGetNumEntries () from /usr/lib/aarch64-linux-gnu/tegra/libnvmm_utils.so
(gdb) list
752 ctx->window_x = 0;
753 ctx->window_y = 0;
754 ctx->out_pixfmt = 1;
755 ctx->fps = 30;
756 ctx->memory_type = V4L2_MEMORY_MMAP;
757 ctx->vp9_file_header_flag = 0;
758
759 ctx->conv_output_plane_buf_queue = new queue < NvBuffer * >;
760 pthread_mutex_init(&ctx->queue_lock, NULL);
761 pthread_cond_init(&ctx->queue_cond, NULL);
(gdb) f 1
#1 0x0000007fb72bb048 in ?? () from /usr/lib/aarch64-linux-gnu/tegra/libtegrav4l2.so
(gdb) list
762 }
763
764 int
765 main(int argc, char *argv[])
766 {
767 context_t ctx;
768 int ret = 0;
769 int error = 0;
770 uint32_t i;
771 bool eos = false;
(gdb)
This isn’t something I can debug, but this sticks out:
Failed to query video capabilities: Inappropriate ioctl for device
…this would tend to imply the related driver and libraries are incorrect or mismatched. Then it seems that simply declaring something without any execution results in the segmentation fault.
Do all of the drivers installed show as ok from this?
sha1sum -c /etc/nv_tegra_release
Also, has there been any kernel customization on this?
I have requested folks at leopard to help. I am using IMX274 from leopard imaging.
Yes all drivers look ok.
ubuntu@tegra-ubuntu:~/opencv/build$ sudo sha1sum -c /etc/nv_tegra_release
[sudo] password for ubuntu:
/usr/lib/aarch64-linux-gnu/libv4l/plugins/libv4l2_nvvideocodec.so: OK
/usr/lib/aarch64-linux-gnu/libv4l/plugins/libv4l2_nvvidconv.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvomx.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnveglstreamproducer.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvtx_helper.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvddk_vic.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libglx.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libargus_socketserver.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvmmlite.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvddk_2d_v2.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvwinsys.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libargus.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvmm.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvjpeg.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvexif.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvdc.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvavp.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvtestresults.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libargus_socketclient.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvmm_utils.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvfnet.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvll.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvcameratools.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvapputil.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnveglstream_camconsumer.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvrm.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvcam_imageencoder.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libtegrav4l2.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvparser.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvtvmr.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvrm_gpu.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvtnr.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvcamerautils.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvidia-egl-wayland.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvfnetstoredefog.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvodm_imager.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvmmlite_utils.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvcolorutil.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvmmlite_video.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvmmlite_image.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvmm_contentpipe.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvimp.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvos.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvrm_graphics.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvmedia.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvfnetstorehdfx.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvomxilclient.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvcamlog.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvmm_parser.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libscf.so: OK
/usr/lib/aarch64-linux-gnu/tegra/libnvosd.so: OK
/usr/lib/xorg/modules/drivers/nvidia_drv.so: OK
/usr/lib/xorg/modules/extensions/libglx.so: OK
ubuntu@tegra-ubuntu:~/opencv/build$