misc/159095: when /var is full can not connect to server through ssh, or su

[Eugen Konkov]

>Number:         159095
>Category:       misc
>Synopsis:       when /var is full can not connect to server through ssh, or su
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          change-request
>Submitter-Id:   current-users
>Arrival-Date:   Thu Jul 21 22:30:09 UTC 2011
>Closed-Date:
>Last-Modified:
>Originator:     Eugen Konkov
>Release:        
>Organization:
ISP FreeLine
>Environment:
>Description:
WISHLIST: 
  allow sshd to work when /var is full.

this is critical because of there is no any barrier to allow user to log in and do something (empty /var from dust). but now this does not work because of log message is tryed to be writed to 'log'.... but /var is full and loggining is stale (((

this problem is typical for 'su' also.
when you logged in and try to 'su' when /var/ is full  -- you are in stale.

# df -h
/dev/ad1s1d    989M    989M    -79M   109%    /var

$ su
Password:
...... bla bla bla, I am stale.....
>How-To-Repeat:
fill /var/ and try to login through ssh
>Fix:
write login message to file, when user is logged already.


>Release-Note:
>Audit-Trail:
>Unformatted: