Gstreamer使用vic加速时概率性报错

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Orin
1

内核日志如下

[ 5258.397285] iommu_context_dev 13e40000.host1x:niso1_ctx0: pin_array_ids: could not get buf err=-22
[ 5258.406634] falcon 15340000.vic: pin_job_mem -22
[ 5258.412071] falcon 15340000.vic: nvhost_ioctl_channel_submit: failed with err nvhost_job_pin
[ 5258.420858] falcon 15340000.vic: nvhost_ioctl_channel_submit: =====================
[ 5258.428882] falcon 15340000.vic: nvhost_ioctl_channel_submit: failed with err -22

目前难以复现，可否给一个pipeline能够调用nvhost_ioctl_channel_submit，使得复现的概率大一些，另外出现此问题时，有哪些原因？

2

Hi,
We support jetson_multimedia_api and gstreamer. Please make sure you have checked the document:

There are some examples in

Q: Is there any example of running RTSP streaming?
Q: Is there an example for running UDP streaming?
Q: I have a USB camera. How can I launch it on AGX Orin?

For further issues, please share a method to replicate the issue through gstreamer command, or either sample. We will set up developer kit and check.

Thanks!

5

Hi,
You can execute the script to fix VIC at maximum frequency:

VPI - Vision Programming Interface: Performance Benchmark

And see if the issue is still present. If it persists, we would need to replicate the issue and check further. Please share us a test sample and we will try to replicate it on developer kit.

6
  1. 我的系统是jp5.1.1/2 ，这边发现，这两个版本都会有该问题，用于测试的例子，我这边无法提供，这涉及到具体的代码。
  2. 您这边可以提供一个使用nvhost_ioctl_channel_submit的例子给我吗，用于我测试复现？
7

Hi,
The code of calling nvhost_ioctl_channel_submit is built in libs and not public. We cannot reveal further information. For moving this topic forward, please share a method so that we can reproduce it on developer kit. And check.

8
  1. 我这边是用的gstreamer pipeline偶发性会复现该问题，这个gstreamer pipeline代码我无法公开
  2. 你这边是否能给一个gstreamer pipeline，它能够调用 nvhost_ioctl_channel_submit，以便复现该问题
  3. 复现该问题后，我这边尝试用ftrace跟踪其轨迹，明确问题发生的原因
10

另外能否告知下，具体是哪个库会调用 nvhost_ioctl_channel_submit

11

这是其他出错日志

Jan 14 23:59:55 cntjitpy-igvak-21-dcu1 kernel: [429064.035922] falcon 15340000.vic: nvhost_ioctl_channel_submit: failed with err -22
Jan 14 23:59:55 cntjitpy-igvak-21-dcu1 kernel: [429064.063666] arm-smmu 8000000.iommu: Unhandled context fault: fsr=0x80000402, iova=0x7ff5b21000, fsynr=0x3c0003, cbfrsynra=0x435, cb=8
Jan 14 23:59:55 cntjitpy-igvak-21-dcu1 kernel: [429064.076320] arm-smmu 8000000.iommu: Unhandled context fault: fsr=0x80000402, iova=0x7ff5b20000, fsynr=0x650003, cbfrsynra=0x435, cb=8
Jan 14 23:59:55 cntjitpy-igvak-21-dcu1 kernel: [429064.092836] mc-err: (255) csr_vicsrd: EMEM address decode error
Jan 14 23:59:55 cntjitpy-igvak-21-dcu1 kernel: [429064.099100] mc-err: status = 0x2006406c; hi_addr_reg = 0x000000ff addr = 0xffffffff00
12

gstreamer log：

NvRmStream: Channel submission failed (err=196623)
NvRmStream: Flush failed (err=196623)
NvMMLiteVideoEncDoWork:NvEncNvVicConvertSurfaceFormat failed
NvVideoEncTransferOutputBufferToBlock: DoWork failed line# 679
NvVideoEnc: NvVideoEncTransferOutputBufferToBlock TransferBufferToBlock failed Line=690

kernel log：

iommu_context_dev 13e40000.host1x:niso1_ctx0: pin_array_ids: could not get buf err=-22
falcon 15340000.vic: nvhost_ioctl_channel_submit: failed with err -22
13 
pin_array_ids: could not get buf err=-22
[219816.987868] falcon 15340000.vic: nvhost_ioctl_channel_submit: failed with err -22
[219817.020508] falcon 15340000.vic: nvhost_job_alloc: job is very large (96504), expect performance loss
14

Hi,
We are not able to comment further. Would suggest make a simple test application so that we can reproduce it on developer kit.

15

请问下，nvhost_ioctl_channel_submint调用是属于哪个gstreamer库的？

16

库调用的错误，这个信息是否能够定位
SYS_write(2, "25:13:39.349595680 \033[334m 333\033[00m 0xfffe88058460 \033[31;01mERROR \033[00m \033[00m v4l2videoenc gstv4l2videoenc.c:1472:gst_v4l2_video_enc_loop:<nvv4l2h264enc0>\033[00m Failed to process output buffer\n", 199 <unfinished ...>