JetPack 4.2.1 nvjpeg leaking

Autonomous Machines Jetson & Embedded Systems Jetson TX2
1

Hi all

I am using unmodified sample 12_camera_v4l2_cuda on TX2 with USB cameras (Have tried multiple different cameras). Command line is “./camera_v4l2_cuda -d /dev/video1 -f MJPEG -s 1280x720 -n 30”

After approx 15 seconds it is crashing with error:
NvRmChannelSubmit: NvError_IoctFailed with errorcode 22… blah blah blah…

By changing command line to -s320x240 it runs for longer, a couple of minutes, but then the same crash.

By commenting the following line out, it will run forever without crashing.
if (ctx->jpegdec->decodeToFd(fd, ctx->cameras[i].g_buff[v4l2_buf.index].start, bytesused, pixfmt, width, height) < 0) …

If I run the same sample on my Jetson Nano then there is no problem and everything runs forever.

So it appears there is a problem in the libnvjpeg.so or the application where the fd buffer is not being freed.

Is there any solution to this problem? I see in a different thread that there was a known problem on nano r32.1 in libnvjpeg and a new version was referenced in that thread. Is there a new version for the TX2 JetPack 4.2.1??

[url]https://devtalk.nvidia.com/default/topic/1050162/jetson-nano/r32-1-0-mmapi-and-decodetofd-leak-memory-/post/5335303/#5335303[/url]

Help please anyone…

Thanks.

2

Hi,
For more information, unmodified sample 12_camera_v4l2_cuda runs well on r32.2/Nano but hits memory leak on r32.2/TX2?

3

Thanks DaneLLL but I’m not quite sure what you’re asking sorry but…

My Nano has r32.1.1 and the sample is running ok. I was just referring to that other post because it sounds similar.

My TX2 has r32.2.0 and the sample crashes.

Cheers.

4

Hi,
From your previous comment, it looks like the same r32.2 works on Nano but fails on TX2, implying it might be a hardware issue. It is clear now Nano and TX2 are flashed with different software releases.

We will check and update.

5

Any update on this one?

6

Hi,
Please try attachment.
r32_2_TEST_libnvjpeg.zip (146 KB)

7

Yay. This is has certainly fixed the problem.

Thank you!

8

Hi,
Attachment in #6 is a temporary solution and shall work fine in non-DeepStream SDK usecases.

If you need to run JPEG decoding in both tegra_multimedia_api and DeepStream SDK 4.0, please use this attachment. It is built with the fix in next r32.3.
R32_2_libnvjpeg.zip (146 KB)

9

DaneLLL
the attachment you shared gives an access denied error