oops in v4l2src when going from pause to play

[Nicolas Dufresne]

Le jeudi 24 janvier 2019 à 21:16 -0600, dwight_g a écrit :
> I eventually managed to update to 1.14.4 and after figuring out the existing
> nvvidconv fails to allow DMA access when copy-threshold enabled (add
> io-mode=2 to v4l2src parameters), it immediately failed again with the same
> error:
> 
> 
> 
> Looking up I see I left off the 'unable to handle kernel paging request
> error message' though.
> 
> Except further digging I realize what Nicolas' point was - though this says
> 'Process v4l2src0' it appears the crash trace functions are in V4l2
> driver...when the v4l2src plugin appears to request buffers while streaming
> already. I found a couple similar problems reported on RasbPi's...

Then disable VIDIOC_CREATE_BUFS support in your driver if it's crashing
the kernel. This IOCTL is specially designed fro run-time allocation,
and only make sense for drivers using virtual memory.

Nicolas

> 
> 
> 
> 
> --
> Sent from: http://gstreamer-devel.966125.n4.nabble.com/
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel