[debbugs-tracker] bug#26706: closed (mingetty consumes 40% CPU printing the login prompt over and over)

[GNU bug Tracking System]

Your message dated Fri, 06 Apr 2018 10:06:38 +0200
with message-id <address@hidden>
and subject line Re: bug#26706: mingetty consumes 40% CPU printing the login 
prompt over and over
has caused the debbugs.gnu.org bug report #26706,
regarding mingetty consumes 40% CPU printing the login prompt over and over
to be marked as done.

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-- 
26706: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=26706
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--- Begin Message --- Subject: mingetty consumes 40% CPU printing the login prompt over and over Date: Fri, 28 Apr 2017 21:11:06 -0400 User-agent: mu4e 0.9.18; emacs 25.2.1

I noticed that my headless server running GuixSD was busy when I am not
doing anything. When I looked at top I saw mingetty consuming 40% CPU
...

$ top -o %CPU -n 1 | head -n 25
top - 20:44:13 up 5 days, 12:58,  3 users,  load average: 0.33, 0.33, 0.35
Tasks: 192 total,   1 running, 191 sleeping,   0 stopped,   0 zombie
%Cpu0  :   0.0/0.1     0[                                                       
           ]
%Cpu1  :   0.1/2.9     3[||                                                     
           ]
%Cpu2  :   0.2/4.0     4[|||                                                    
           ]
%Cpu3  :   0.3/4.9     5[|||                                                    
           ]
%Cpu4  :   0.2/0.1     0[                                                       
           ]
%Cpu5  :   0.2/4.6     5[|||                                                    
           ]
%Cpu6  :   0.2/4.3     5[|||                                                    
           ]
%Cpu7  :   0.3/4.1     4[|||                                                    
           ]
GiB Mem :  6.5/15.610   [                                                       
           ]
GiB Swap:  0.0/9.649    [                                                       
           ]

  PID USER      PR  NI    VIRT    RES  %CPU %MEM     TIME+ S COMMAND
  384 root      20   0    6.2m   0.3m  40.0  0.0   2386:36 S mingetty
    7 root      20   0    0.0m   0.0m   6.7  0.0   2:20.86 S rcu_sched
 4154 g1        20   0  300.3m 135.1m   6.7  0.8   3:37.67 S emacs
 7431 root      20   0    0.0m   0.0m   6.7  0.0   0:26.07 S kworker/u16:2
 7539 root      20   0    0.0m   0.0m   6.7  0.0   0:06.54 S kworker/u16:0
    1 root      20   0  130.1m  27.9m   0.0  0.2   0:03.22 S shepherd

If I plug in a console display, I see the login prompt is being rapidly
printed over and over. If I hit the console return key the printing
stops and mingetty stops using CPU.

I am running a relatively recent GuixSD built from git checkout ...

address@hidden ~$ guix --version
guix (GNU Guix) 0.12.0
address@hidden ~$ stat ~/.config/guix/latest | grep File:
  File: /home/g1/.config/guix/latest -> /home/g1/src/guix/
address@hidden ~$ git -C ~/.config/guix/latest describe
v0.12.0-3191-g25a49294c
address@hidden ~$ git -C ~/.config/guix/latest log -n 1 --oneline
25a49294c cache: Work around 'time-monotonic' bug in Guile 2.2.2.

Here is the system config:

sys.scm
Description: Binary data

--- End Message ---

> --- Begin Message ---
>
>
>
> Subject: 
>
> Re: bug#26706: mingetty consumes 40% CPU printing the login prompt over and over
>
>
>
>
> Date: 
>
> Fri, 06 Apr 2018 10:06:38 +0200
>
>
>
>
> User-agent: 
>
> Gnus/5.13 (Gnus v5.13) Emacs/25.3 (gnu/linux)
>
>
>
>
> address@hidden skribis:
>
> > As of guix (GNU Guix) 0.14.0.4032-cfb55 I can't reproduce this, and
> > haven't seen it since ~ when first reported, so I suggest it be
> > closed. TIA - George
>
> Great, thanks for the update.
>
>
> --- End Message ---