open: Resource temporarily unavailable cannnot send to "username"

[T G Manikandan]

Hello,
I get this error whenever I try to send a wall message.
How to proceed?

Thanks

[Tom Geudens]

Hi,
From the wall man pages :
DIAGNOSTICS
Cannot send to ...
The open on a user's tty file failed.

Possibly because you're not sending the wall as root ?

Hope this helps,
Tom Geudens

[T G Manikandan]

Hello,
I am sending it using a normal user.
But even when send the wall message as root for some specific users I get this error message.

Thanks

[Tom Geudens]

Hi,
Sorry that I'm asking all these questions (instead of giving answers), but :
- Do you "reach" more users as root than with your "normal" account ?
- Do you have a breakdown of the users you cannot reach as root ? Are these "ordinary" users ?

Regards,
Tom Geudens

[Animesh Chakraborty]

Hi,
It may be due to some zombie login process, high network load some thing like that perhaps ?
You should reboot your machine to get rid of the defunct process.
Sometimes reading from or writing to the offending pty fixes it,
for example, "cat /dev/pty/ttyp2 >/dev/null" or
"cat /etc/hosts >/dev/pty/ttyp2".

[Steve Steel]

Hi


Wall can generate a lot of processes.

Maybe you hit the maxuprc value in the
kernel.


Try raising it and check for forking errors in the syslog..


Steve Steel

[Abdul Jaffar]

problem is u are not getting the ttys ..

try reinstalling ptys by inssf command