su: cannot set user id: Resource temporarily unavailable

We have linux rac db server. till date we are able to connect with grid user on both the node . But now on node 1 it is giving error ,even switching through root user .
# su - grid
su: cannot set user id: Resource temporarily unavailable

Please suggest.

https://startpage.com/do/search?q=su...ly+unavailable

also edit title ( !Urgent ) and get moved to appropriate forum

I changed limit.conf file but till i am getting below error.
su: cannot set user id: Resource temporarily unavailable

Please suggest ASAP

and what in the limit.conf did you change to what?

and please be careful with the demands you are making

Hi onkarlale and welcome to LQ - I have moved your thread to Linux-Server as the LUG forum is for Linux User Groups and not for technical questions. I have also renamed your thread. Please note that we are all volunteers on this site and marking a thread "Urgent" will not get you the correct level of assistance.

I would like to draw your attention to the Rules which will explain this more fully and to How to Ask a Question which will give you essential advice and guidance for you when creating threads

I tried all the threads, but till i am not able to login with grid user.

Till I am getting same error. Please any update on above error.

Thanks in advance.

Anyone here will still need a little more info to be able to help. As Firerat asked...

Originally Posted by Firerat and what in the limit.conf did you change to what?

And...?