bugGNU Screen - Bugs: bug #40421, "Attach attempt with bad...


bug #40421: "Attach attempt with bad pid" multi-user screen on AIX 6.1

Submitted by:  None
Submitted on:  Tue 29 Oct 2013 06:42:02 PM UTC  
Votes:  99  
Category:  Crash/Freeze/Infloop Severity:  3 - Normal
Priority:  5 - Normal Status:  None
Privacy:  Public Assigned to:  None
Open/Closed:  Open Release:  4.0.3
Fixed Release:  None Planned Release:  None
Work Required:  None

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Fri 10 Apr 2015 02:48:24 AM UTC, comment #1: 

Same bug in screen 4.2.1 under MacOS 10.10 "Yosemite"

Devon Sean McCullough <devon>
Tue 29 Oct 2013 06:42:02 PM UTC, original submission:  

When using screen so more than one user can interact on the same shell, the second user cannot connect to the screen session of the first user.  "multi-user" and "addacl" commands have been executed.  screen program is setuid to root to allow access.

The first user (who is trying to share their screen) sees the following message briefly:

"Attach attempt with bad pid(28573732)!"

Of course, the pid number changes.  The second user's session just hangs.  Nothing is shown.

This is screen version 4.00.03.  This error occurs with AIX 6.1.  The same version works in AIX 5.3.



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Attach Files:

Attached Files
file #33624:  screen-k.patch added by devon (3KiB - application/octet-stream - make OPTIONS=-DKILL0_KLUDGE; ./screen -k # workaround)


Depends on the following items: None found

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    Follow 2 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2015-04-10 devon Attached File- => Added screen-k.patch, #33624
    2015-04-10 devon Carbon-Copy- => Added devon

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