bugGNU Screen - Bugs: bug #52485, lock on /etc/utmp on AiX >...


bug #52485: lock on /etc/utmp on AiX > 6100-09-07-1614

Submitted by:  Cyrille <cyj75fr>
Submitted on:  Thu 23 Nov 2017 09:32:08 AM UTC  
Category:  Crash/Freeze/Infloop Severity:  3 - Normal
Priority:  5 - Normal Status:  Need Info
Privacy:  Public Assigned to:  None
Open/Closed:  Open Release:  4.6.1
Fixed Release:  None Planned Release:  None
Work Required:  None

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Sat 16 Dec 2017 02:03:59 PM UTC, comment #1:

I don't have access to AIX machine, so you need to provide more information.

It may be that, utmp functions behave differently on newer AIXes and start lock, screen by itself doesn't seem to do any locking on /etc/utmp

Amadeusz Sławiński <amade>
Project Administrator
Thu 23 Nov 2017 09:32:08 AM UTC, original submission:

When I execute Screen sessions I have a lock on /etc/utmp, so I can't execute new Screen and I can't connect root even on console. With lsof I can see the process screen who is locking /etc/utmp and if I kill it, freeze stop.

On AiX 6100-09-07-1614 all is OK

On Aix 6100-09-09-1717 lock on /etc/utmp at the firt screen session

On AiX 7200-01-02-1717 , the lock appears sometime but not everytime, I can't say why, it seems to be random.

Cyrille <cyj75fr>


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    Follow 2 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2017-12-16 amade StatusNone => Need Info
    2017-11-23 cyj75fr Carbon-Copy- => Added cyj75fr

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