Libnvargus_socket segfault

[Nebuli]

Hello,

We are trying to recover the stream of temporarily disconnected cameras in our application based on the libargus. When we detect a disconnection, we restart both producer and consumer to retrieve the stream. However, we sometimes face a segfault on libnvargus_socket.so.

• How can we avoid/catch the segfault to avoid the application crash?
• How to debug the libargus to understand where the segfault come from?

Here is the logs with gdb when the segfault is received: logs_gdb_segfault.txt (7.0 KB)

Here is the nvargus-daemon logs: logs_argus_daemon.txt (20.6 KB)

Our specs:

• Jetson AGX Orin
• Jetpack 5.1.3 / L4T 35.5.0

Thanks.

[ShaneCCC]

Please reference to the MMAPI sample like userAutoExposure10_argus_camera_recording to implement the error handle to terminal the APP to try.

[Nebuli]

We noticed that the segfault happens only on multiple camera streams. We tried to run the two samples simultaneously with 2 different cameras and we also have a segfault when a camera is disconnected (seems to come from the sample 10_argus_camera_recording).
Do you have a sample that handles errors for multiple camera streams ?

[ShaneCCC]

Current do not consider disconnect the camera.
Does your design able to detect camera disconnected?

[Nebuli]

We finally managed to retrieve the stream. However, we often face some argus errors on the disconnection which slow down a lot the recovery:

(Argus) Error InvalidState: Receive thread is not running cannot send. (in src/rpc/socket/client/ClientSocketManager.cpp,

(Argus) Error Timeout:  (propagating from src/rpc/socket/client/ClientSocketManager.cpp, function send(), line 137)
(Argus) Error Timeout:  (propagating from src/rpc/socket/client/SocketClientDispatch.cpp, function dispatch(), line 91)

Is there a way to avoid being blocked by these errors for a long time?

[ShaneCCC]

Replace the libnvscf.so by attached file
And run the argus_daemon by below command.

libnvscf.so.r35.5.inifite.txt (8.4 MB)

sudo service nvargus-daemon stop
sudo enableCamInfiniteTimeout=1 nvargus-daemon