Re: [screen-devel] [screen is terminating] version screen-4.0.3-16.el6.x86_64

[Kumar, Amit]

Dear All,

 

Any idea how can I troubleshoot this?

I straced this process and found the following:

 

tracescrenn.11817:chown("/dev/pts/20", 0, 0)              = -1 EPERM (Operation not permitted)

tracescrenn.11818:setpgid(0, 11818)                       = -1 EPERM (Operation not permitted)

 

Any thoughts on this?

Looking at the source of screen.c

…..

…..

  if (ServerSocket != -1)

    {

      debug1("we unlink(%s)\n", SockPath);

#ifdef USE_SETEUID

      xseteuid(real_uid);

      xsetegid(real_gid);

#endif

      (void) unlink(SockPath);

#ifdef USE_SETEUID

      xseteuid(eff_uid);

      xsetegid(eff_gid);

#endif

    }

  for (display = displays; display; display = display->d_next)

    {

      if (D_status)

        RemoveStatus();

      FinitTerm();

#ifdef UTMPOK

      RestoreLoginSlot();

#endif

      AddStr("[screen is terminating]\r\n");

      Flush(3);

      SetTTY(D_userfd, &D_OldMode);

      fcntl(D_userfd, F_SETFL, 0);

      freetty();

      Kill(D_userpid, SIG_BYE);

    }

  /*

   * we _cannot_ call eexit(i) here,

   * instead of playing with the Socket above. Sigh.

   */

  exit(i);

…….

…….

====

It seems to be that either I am not able to open the socket for some reason, which is surprising because I am a root user while I try this. Other possibility is it has to do something with the display? Any idea on what kind of display does screen reply on?

 

Any help is greatly appreciated.

Thank you,
Amit

 

 

Dear Screen,

 

[screen is terminating] for both Root and regular user …

 

Running into this strange problem on a handful of systems. It works great on some of our other systems with the same version of OS etc.,. I have googled enough with various suggestions and solutions to this problem but none has worked for me. And I am ready to pull all hairs out….

Hope I can find some peach with this oddity.

 

RHEL6 OS

# screen -v

Screen version 4.00.03 (FAU) 23-Oct-06

 

I have made sure my fstab has this line:

devpts                  /dev/pts                devpts  gid=5,mode=620  0 0

$ getent group 5

tty:x:5:

 

$ ls -ld /var/run/screen

drwxrwxr-x. 3 root screen 4096 Jun  8 11:20 /var/run/screen

$ getfacl /var/run/screen

getfacl: Removing leading '/' from absolute path names

# file: var/run/screen

# owner: root

# group: screen

user::rwx

group::rwx

other::r-x

 

 

$ ls -ld /usr/bin/screen

-rwxr-sr-x 1 root screen 387488 May 20  2011 /usr/bin/screen

$ getent group screen

screen:x:84:

 

Any help here is greatly appreciated.

Thank you,
Amit