[daip] Re: problem with XAS?

[Eric Greisen]

Patrick Palmer writes:
 > I have been having a problem with XAS.  
 > 
 > When I try to start AIPS, it does the right things, but then fails:
 > 
 > --------------------
 > START_AIPS: I am GUESSING you are at a workstation called oskar
 > START_AIPS: Starting TV servers on oskar asynchronously
 > START_AIPS:  - with Internet Sockets...
 > START_AIPS: Starting TPMON daemons on OSKAR asynchronously...
 > Starting up 31DEC05 AIPS with normal priority
 > Begin the one true AIPS number 2 (release of 31DEC05) at priority =   0 
 > AIPS 2: You are assigned TV device/server   1
 > AIPS 2: You are assigned graphics device/server   1
 > AIPS 2: Enter user ID number
 > ?XASERVERS: TVSERV is already running on host oskar, user aips

    ps -elf will show a ./TVSERV.EXE process running - it has no
icon.

 > XASERVERS: Start XAS on oskar, DISPLAY :0
 > XAS: ** TrueColor FOUND!!! 
 > XAS: ***  Using shared memory option for speed ***
 > XAS: Using screen width height 1270 924, max grey level 255
 > MakeLink: bind error (INET): Address already in use
 > XAS: Quitting NOW.

    In principle, this message occurs after an XAS has been killed for
maybe up to 10 minutes (on Solaris) or 1 minute (on LInux).  If it
lasts longer than that, the operating system is confused or XAS was
killed in such a way as to prevent release of shared memory and of the
socket.

 > XASERVERS: Start graphics server TEKSRV on oskar, DISPLAY :0
 > 347
 > AIPS 2:                          31DEC05 AIPS:
 > AIPS 2:      Copyright (C) 1995-2005 Associated Universities, Inc.
 > AIPS 2:            AIPS comes with ABSOLUTELY NO WARRANTY;
 > AIPS 2:                 for details, type HELP GNUGPL
 > AIPS 2: This is free software, and you are welcome to redistribute it
 > AIPS 2: under certain conditions; type EXPLAIN GNUGPL for details.
 > AIPS 2: Previous session command-line history recovered.
 > AIPS 2: TAB-key completions enabled, type HELP READLINE for details.
 > AIPS 2: Recovered POPS environment from last exit
 > >XASERVERS: Start message server MSGSRV on oskar, DISPLAY :0
 > STARTPMON: [OSKAR] Starting TPMON4 with output SUPPRESSED
 > ZVTPO3 bind (INET): Address already in use

     This is very disturbing - if you did not put the appropriate
entry into /etc/services then how can ot be busy?  The message one
gets when it is not defined is very different than this.

 > -----------------------
 > 
 > The error about TPMON4 is because I never added the additonal tape to
 > /etc/services.  I have only one tape, so I didn't worry about it.

    Your tape file thinks that you have 3 tapes - you should fix it.

 > 
 > The last time I exited AIPS (last Friday), it just hung so I finally
 > used control C.  I logged out completly after that.  This AM, when I
 > started, I got essentially the same messages as above, so I exited
 > AIPS, had to use control-C again, and then found that there was an old
 > XAS process (from April 1) and killed it.  Then I started AIPS again,
 > and got the above.
 > 
 > I exited (and had to use control-C again), but there were no AIPS
 > processes left.  So, I don't know where it is finding a TVSERV already
 > running.

What messages immediately precede the hang?  Are you using EXIT or
KLEENEX (which is supposed to kill the servers).
 > 
 > Could you please advise me?

I suspect that your machine should be rebooted.

Eric Greisen