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

[Amadeusz Sławiński]

Hi,

can you show output of
grep devpts /proc/mounts
and
ls -l /dev/pts

Amadeusz

On Wed, 24 Jun 2015 20:31:57 +0000
"Kumar, Amit" <address@hidden> wrote:

> 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
>