| Title: | DIGITAL UNIX (FORMERLY KNOWN AS DEC OSF/1) | 
| Notice: | Welcome to the Digital UNIX Conference | 
| Moderator: | SMURF::DENHAM | 
| Created: | Thu Mar 16 1995 | 
| Last Modified: | Fri Jun 06 1997 | 
| Last Successful Update: | Fri Jun 06 1997 | 
| Number of topics: | 10068 | 
| Total number of notes: | 35879 | 
         OS : Digital Unix 4.0 A
         window manager : CDE
         Platform : Alpha server 1000 A
         Problem : Here's the sequence
                   1. Boot the server
                   2. wall command is working from console
                   3. let the server run for a few days
                   4. issue wall command from console
                      it takes the message text
                      after i hit cntrl-d to send the msg
                      the session hangs
                   5. I log in from  another terminal and look for the wall
                      process. The process is uninterruptable U.
    
    Scenerio: I have created a sh script to shutdown the server on sunday
              and then reboot the server in single user mode to take a
              full backup, after which init 3 brings the server to a multi
              user + n/w mode.
              shutdown fails after server is up for 7 days,  because wall
              is hanging so my script is no good. If the server is up for
              a few hours the script works okay.
    
    
                                                             
              
| T.R | Title | User | Personal Name | Date | Lines | 
|---|---|---|---|---|---|
| 8695.1 | get a stack trace | SMURF::DUSTIN | Tue Feb 04 1997 11:49 | 9 | |
|     you need to trace the process using dbx on the kernel, ie.
    
    	# dbx -k /vmunix
        set $pid=2174          (the pid of stuck process)
        t
    
    
    John
    
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| 8695.2 | Found Patch to fix the problem | HEN::MEHTA | Fri Feb 07 1997 10:06 | 6 | |
|     
     I found a patch kit OSF400-107 that will ( hopefully ) fix my problem.
     The problem is actually due to the wall and ntalkd  processes that 
     remain hanging due to  the abnormal termination of LAT sessions.
    
     Ajay 
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