Too many processes of nv_queue

[ldrax]

Recently I noticed many occurrences of 'unable to fork' errors. I watch the top command for a while, suspecting out of memory issue, but it doesn't look that way.
'ps' command surprisingly shows there are 30k+ processes of nv_queue.
 

-- truncated --
32757 ?        S      0:00 [nv_queue]
32758 ?        S      0:00 [nv_queue]
32759 ?        S      0:00 [nv_queue]
32760 ?        S      0:00 [nv_queue]
32761 ?        S      0:00 [nv_queue]
32762 ?        S      0:00 [nv_queue]
32763 ?        S      0:00 [nv_queue]
32764 ?        S      0:00 [nv_queue]
32765 ?        S      0:00 [nv_queue]
32766 ?        S      0:00 [nv_queue]
32767 ?        S      0:00 [nv_queue]

# ps ax | grep nv_queue | wc -l
31198

This might come from nvidia driver. I have been using the nvidia build for a long time but the only different thing I do recently is the command

nvidia-smi -pm 1

to enable the persistence mode. Without this command, my graphics card (1080Ti) would always at 55W power when idle. With this command, it's down to 9-12W.

Does anyone encounter this issue?
I believe the very large numbers of nv_queue processes here has rendered the system unstable, casuing many other important processes fail to execute due to out of resources.
 

[JorgeB]

Best bet is to post this on the Nvidia plugin support thread.

[ldrax]

Done reposted there. I will delete this post shortly. Thanks @johnnie.black!