hi everybody, this is my first visit here.
i have a sco unixware 7.1 box. terminals are connected thru digi multiserial devices. some users are also connected over the lan from pc stations running terminal emulation programs.
in few last weeks periodically ( almost every other day ) happens the situation where:
- the users already connected are getting ‘frozen’
- the users trying to login are able to type their username and password, they see the welcome text but no shell prompt is shown and no echo is displayed when they type some chars. On the other side the system seems to be running, because if they try to type ‘exit’ the session ends. this happens if ‘normal users’ are trying to login. root user can nicely login and normally work, except that when he types :
… to stop the system, he gets
UX:sh (/sbin/shutdown): ERROR: Cannot make pipe
… so, i use ’ init 0 ’ to stop it and reboot
after rebooting the system works fine for couple days and so on …
i have read the log files ( syslog, osmlog ) , no useful info there
i also have visited sco.com, but i have not found similar problems in their knowledge base.
thanks for attention