Hi NV， When the GMSL interface is not connected to any camera, execute the following test script： for id in `seq 0 $((num-1))`;do gst-launch-1.0 -v nvv4l2camerasrc device=/dev/video$id ! nvvidconv ! 'video/x-raw(memory:NVMM), width=(int)1920, height=(int)1536' ! tee name=t \ t. ! …

hello future.wang, actually, we have VI-5 memory leak fix (which to release capture requests and embedded data buffers) is now under code-review. for example, e507583.diff (2.6 KB) please kindly give it another try and sharing the test results.

Hi Jerry, The purpose of the test is to obtain the actual effect of the video stream when no camera is connected. Even if the camera is not connected, the system desktop should not be stuck or a null pointer error should occur in the kernel. In addition, our products will not upgrade the JP vers…

hello future.wang, camera software stack it doesn’t support such scenario. so, you’ll see err_rec: attempting to reset the capture channel to re-try the capture request. even though you don’t have camera connected, is it possible to enable TPG (test-pattern-generator) on the SerDes chip for sendi…

Hi Jerry， Using the same testing method, the following version still does not solve this problem， R35 (release), REVISION: 3.1, GCID: 32827747, BOARD: t186ref, EABI: aarch64, DATE: Sun Mar 19 15:19:21 UTC 2023 kernel log： Xavier_JP5.1.1_KernelPanic_autoReboot.txt (396.0 KB)

hello future.wang, your device still not sending anything to the CSI brick, right? is it possible to enable TPG for validation?

Hi Jerry， The purpose of the test is to obtain the actual effect of the video stream when no camera is connected. The JP5.1.1 version not only stuck on the desktop UI, but also caused a kernel panic.

Hi Jerry, I used the patch in the following topic to solve the problem of null pointers and system restart. [image] Orin vi5_channel_stop kernel panic on jetpack5.1.1 Jetson AGX Orin ok ，we have do the test on jetpack5.1.1. in fact, It doesn’t actually help.…

hello future.wang, did you confirm memory leakage leakage is due to this patch? did it repo OOM? how long does it take?

Hi Jerry， Kernel panic log： [48864.057925] tegra-camrtc-capture-vi tegra-capture-vi: uncorr_err: request timed out after 2500 ms [48864.058356] tegra-camrtc-capture-vi tegra-capture-vi: err_rec: attempting to reset the capture channel [48864.059420] (NULL device *): vi_capture_control_message: NUL…

hello future.wang, here’s allocation failure. [image] future.wang: tegra194-vi5 15c10000.vi: vi_capture_setup: memoryinfo ringbuffer alloc failed may I know which Jetpack release version you’re now using? is it possible for moving to the latest release, i.e. JP-5.1.2/l4t-r35.4.1 for confi…

Vi5 error： Unable to handle kernel NULL pointer dereference at virtual address 00000000

Robotics & Edge Computing Jetson Systems Jetson AGX Xavier

JerryChang February 1, 2024, 7:20am 11

hello future.wang,

FYI, we’ve based-on JP-5.1.2 to pause the sensor stream for testing.
it’s confirmed (we’ve stalled the camera sensor stream for 1-hour) we cannot reproduce kernel panic on developer kits.

hence,
please try moving to the latest release version if that’s possible.

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Vi5 error： Unable to handle kernel NULL pointer dereference at virtual address 00000000

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