🚀 go-pugleaf

I can't seem to get xdm to work on our Sun 4's unless I run it in
debug mode *and* explicitly specify the server on the command line.
If I don't do both of these things, then xdm starts up the server,
*doesn't* display the login widget and exits immediately.

If I look at the debug output from xdm, things start acting strangely
right after
  ManageSession :0
At this point in a successful run, resources are loaded and the login
widget appears.  In the unsuccessful runs, xdm falls right into
  Manager wait returns pid: 11535
  Display exited with unknown status 2817
The unknown status is always 2817.

xinit works fine, as does starting the server by hand.  The problem
does not appear on our Sun 3/60's.  Specifics below.

Any ideas?

- Mike Edmunds
  Verity, Inc.		(medmunds@verity.com)


------- Specifics --------

Environment:
  X11R4 patches 1-2
  Shared libraries
  gcc 1.37
  Sun 4, monochrome (tried two different machines)
  SunOS Release 4.0.3  or  SunOS Release 4.0 (.1?)

My /usr/lib/X11/xdm/Xservers file contains:
  :0 Local local /usr/bin/X11/X :0

I bind control-D to the abort-display action in Xresources. My
xdm-config file is straight out of mit/clients/xdm/config.


This command works:
[1]  xdm -udpPort 0 -debug 10 -server ":0 Local local /usr/bin/X11/X :0"

These don't work:
[2]  xdm -udpPort 0 -debug 10
     xdm -udpPort 0 -nodaemon
     xdm -udpPort 0
     xdm


The diff below compares the debugging output of the first two commands
above.  I used abort-display to terminate the first command; the
second one exited on its own.

% diff -c2 output_of_[1] output_of_[2]
*** debug-1	Fri Feb 23 18:56:56 1990
--- debug-2	Fri Feb 23 17:28:47 1990
***************
*** 34,41 ****
  DisplayManager._0.userAuthDir/DisplayManager.Local.UserAuthDir value /tmp
  StartServer for :0
! Server Started 11694
  '/usr/bin/X11/X' ':0' 
  display manager paused til SIGUSR1
! pid: 11695
  WaitForSomething
  signals blocked, mask was 0x0
--- 34,41 ----
  DisplayManager._0.userAuthDir/DisplayManager.Local.UserAuthDir value /tmp
  StartServer for :0
! Server Started 11534
  '/usr/bin/X11/X' ':0' 
  display manager paused til SIGUSR1
! pid: 11535
  WaitForSomething
  signals blocked, mask was 0x0
***************
*** 43,64 ****
  After XOpenDisplay(:0)
  ManageSession :0
! Loading resource file: /usr/bin/X11/xrdb -display :0 -load /usr/lib/X11/xdm/Xresources
! name now :0
! greet :0
! SecureDisplay :0
! Before XGrabServer :0
! XGrabKeyboard succeeded :0
! pseudoReset screen 0
! before XSync
! pseudoReset done
! done secure :0
! dispatching :0
! GreetDone: , (password is 0 long)
! UNMANAGE_DISPLAY
! Manager wait returns pid: 11695
! Display exited with UNMANAGE_DISPLAY
  WaitForSomething
  signals blocked, mask was 0x0
! Manager wait returns pid: 11694
  Zombie server reaped, removing display :0
  Nothing left to do, exiting
--- 43,51 ----
  After XOpenDisplay(:0)
  ManageSession :0
! Manager wait returns pid: 11535
! Display exited with unknown status 2817
  WaitForSomething
  signals blocked, mask was 0x0
! Manager wait returns pid: 11534
  Zombie server reaped, removing display :0
  Nothing left to do, exiting


After an unsuccessful run, /usr/lib/X11/xdm/xdm-errors will contain
only a single line.
  error (pid 11563): Unknown session exit code 2817 from process 11565