Groups > linux.debian.user > #194270

Re: Spurious character typed on console every ~20 secs until logged in

From	<tomas@tuxteam.de>
Newsgroups	linux.debian.user
Subject	Re: Spurious character typed on console every ~20 secs until logged in
Date	2018-03-29 17:30 +0200
Message-ID	<vyHF0-2CC-1@gated-at.bofh.it> (permalink)
References	(2 earlier) <vyADw-6c4-9@gated-at.bofh.it> <vyANb-6uk-1@gated-at.bofh.it> <vyB6y-6Fq-5@gated-at.bofh.it> <vyBpT-6LF-3@gated-at.bofh.it> <vyHvk-2zp-1@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Thu, Mar 29, 2018 at 10:10:55AM -0500, David Wright wrote:
> On Thu 29 Mar 2018 at 10:46:17 (+0200), tomas@tuxteam.de wrote:
> > On Thu, Mar 29, 2018 at 08:24:03AM +0000, Curt wrote:
> > 
> > [...]
> 
> Thanks for the ideas. I hadn't come across the virtual buttons.
> 
> I think I'll look at what processes are running by the time it
> tries to mount /home, and which of them might involve looping on
> that timescale.

If it's something in user space, it'd be interesting who has
the console open.

> Then, when it happens again, I'll try a remote login to see if
> I can catch some process at it. It hasn't yet happened (on the
> three occasions) at an opportune time for me to investigate.
> 
> I agree, the first character is probably a NUL. The second is
> probably CR. Both can be used to terminate strings in different
> situations. Or perhaps my termcap has fallen into a 1960s wormhole:
> anyone remember WRU, and the Here Is key, …

Faintly. I also dimly remember about some serial interfaces
sending NULLs when idle, but I can't put my finger on that.

The advantage of old age is that you tend to forget things :)

Cheers
- -- tomás
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Thread

Spurious character typed on console every ~20 secs until logged in David Wright <deblis@lionunicorn.co.uk> - 2018-03-29 06:40 +0200
  Re: Spurious character typed on console every ~20 secs until logged  in <tomas@tuxteam.de> - 2018-03-29 09:10 +0200
    Re: Spurious character typed on console every ~20 secs until logged  in Curt <curty@free.fr> - 2018-03-29 10:00 +0200
      Re: Spurious character typed on console every ~20 secs until logged  in <tomas@tuxteam.de> - 2018-03-29 10:10 +0200
        Re: Spurious character typed on console every ~20 secs until logged  in Curt <curty@free.fr> - 2018-03-29 10:30 +0200
          Re: Spurious character typed on console every ~20 secs until logged  in <tomas@tuxteam.de> - 2018-03-29 10:50 +0200
            Re: Spurious character typed on console every ~20 secs until logged  in David Wright <deblis@lionunicorn.co.uk> - 2018-03-29 17:20 +0200
              Re: Spurious character typed on console every ~20 secs until logged  in <tomas@tuxteam.de> - 2018-03-29 17:30 +0200
                Re: Spurious character typed on console every ~20 secs until logged  in David Wright <deblis@lionunicorn.co.uk> - 2018-03-29 22:30 +0200
              Re: Spurious character typed on console every ~20 secs until logged  in Curt <curty@free.fr> - 2018-03-29 17:40 +0200
  Re: Spurious character typed on console every ~20 secs until logged  in Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2018-03-29 22:40 +0200
    Re: Spurious character typed on console every ~20 secs until logged  in David Wright <deblis@lionunicorn.co.uk> - 2018-04-12 21:40 +0200

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