ERROR: v4l2 capture: mxc_v4l_dqueue() interrupt received?

[gbiradar]

Hi Guys,

                As i'm working streaming application which uses hardware encryption(caam) with openssl. i'm able to stream for  <10 sec only after that i'm getting this error. i tried to find answer for this problem but of no use.

I'm working yocto setup with poky for i.MX6Q board which uses ov5640 mipi camera, streaming is done at fullhd(1920*1080).

[INFO]  Product Info: i.MX6Q/D/S

====== VPUENC: 4.0.3 build on Feb 17 2016 15:07:17. ======

wrapper: 1.0.58 (VPUWRAPPER_ARM_LINUX Build on Feb  9 2016 21:01:04)

vpulib: 5.4.28

firmware: 3.1.1.46063

Seekable................

[INFO]  ringBufferEnable 0, chromaInterleave 0, mapType 0, linear2TiledEnable 0

if any can help it will be useful.

regards,

Ganesh

[joanxie]

could you share the log file? what detailed ipu error message? is it timeout?  and what test did you use?

[gbiradar]

Hi joanxie​,

i'm using gstreamer-1.0 pipeline.

gst-rtsp server 1.4.1 to test.

============================================================

14781267378462743823458945983245984356893459834562564839598345

46236458954890245249385

364726409439815974534-345234577345

[INFO]  Product Info: i.MX6Q/D/S

====== VPUENC: 4.0.3 build on Feb 17 2016 15:07:17. ======

wrapper: 1.0.58 (VPUWRAPPER_ARM_LINUX Build on Feb  9 2016 21:01:04)

vpulib: 5.4.28

firmware: 3.1.1.46063

Seekable................

[INFO]  ringBufferEnable 0, chromaInterleave 0, mapType 0, linear2TiledEnable 0

452385458845-345834578345734534938489573457

ERROR: v4l2 capture: mxc_v4l_dqueue() interrupt received

mxc_vpu 2040000.vpu: VPU interrupt received.

================================================================

that's it struck.

This is the maximum log i'm getting.

regards,

Ganesh

[gbiradar]

Hi joanxie

this the dmesg log one more thing we increase the VPU frequency to 352M from earlier 266M in menuconfig and we getting the updated vpu log.

IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready

ERROR: v4l2 capture: slave not found!

mxc_vpu 2040000.vpu: size=0x4000, page no.=0x2040

mxc_vpu 2040000.vpu: start=0x6dd6d000, pgoff=0x44d00, size=0x7c000

mxc_vpu 2040000.vpu: [ALLOC] mem alloc size = 0x181000

mxc_vpu 2040000.vpu: [ALLOC] mem alloc cpu_addr = 0xb6300000

mxc_vpu 2040000.vpu: start=0x6cbec000, pgoff=0x46300, size=0x181000

mxc_vpu 2040000.vpu: [ALLOC] mem alloc size = 0x94000

mxc_vpu 2040000.vpu: [ALLOC] mem alloc cpu_addr = 0xb6500000

mxc_vpu 2040000.vpu: [ALLOC] mem alloc size = 0x2fd000

mxc_vpu 2040000.vpu: [ALLOC] mem alloc cpu_addr = 0xb6600000

mxc_vpu 2040000.vpu: start=0x6953e000, pgoff=0x46600, size=0x2fd000

mxc_vpu 2040000.vpu: [ALLOC] mem alloc size = 0x2fd000

mxc_vpu 2040000.vpu: [ALLOC] mem alloc cpu_addr = 0xb6900000

mxc_vpu 2040000.vpu: start=0x69241000, pgoff=0x46900, size=0x2fd000

mxc_vpu 2040000.vpu: [ALLOC] mem alloc size = 0x2fd000

mxc_vpu 2040000.vpu: [ALLOC] mem alloc cpu_addr = 0xb6c00000

mxc_vpu 2040000.vpu: start=0x68f44000, pgoff=0x46c00, size=0x2fd000

mxc_vpu 2040000.vpu: [ALLOC] mem alloc size = 0x2fd000

mxc_vpu 2040000.vpu: [ALLOC] mem alloc cpu_addr = 0xb6f00000

mxc_vpu 2040000.vpu: start=0x68c47000, pgoff=0x46f00, size=0x2fd000

ERROR: v4l2 capture: mxc_v4l_dqueue() interrupt received

mxc_vpu 2040000.vpu: [FREE] freed paddr=0x46F00000

mxc_vpu 2040000.vpu: [FREE] freed paddr=0x46C00000

mxc_vpu 2040000.vpu: [FREE] freed paddr=0x46900000

mxc_vpu 2040000.vpu: [FREE] freed paddr=0x46600000

mxc_vpu 2040000.vpu: [FREE] freed paddr=0x46500000

mxc_vpu 2040000.vpu: [FREE] freed paddr=0x46300000

[joanxie]

refer to the first error message, it seems you haven't download the camera module, you should confim if you have already installed the mipi camera or not.

[gbiradar]

Camera will be in passive mode, once command is pass it will activate the camera module and streaming starts and after <10 seconds streaming stop.  then error.

dmesg: ERROR: v4l2 capture: mxc_v4l_dqueue() interrupt received -> camerasource:sr(current->comm ) : 698(current->pid) : 1(signal_pending(current)).

mxc_v4l2_capture.c

mxc_v4l_dqueue()

{

else if (signal_pending(current)) {

                pr_err("ERROR: v4l2 capture: mxc_v4l_dqueue() "

                        "interrupt received -> %s : %d : %d\n",current->comm, current->pid,signal_pending(current));

                return -ERESTARTSYS;

        }

}

[gbiradar]

I have tried to check the signal which it is raising at streaming. when error popup the signal it is raising is 9 i.e sigkill i have no idea who is generating sigkill.

one question who can raised sigkill, user application or any kernel driver.