On Mon, Sep 16, 2013 at 10:04 PM, Toralf Förster <toralf.foers...@gmx.de> wrote:
> If I run the following script
>
> $> cat l.sh
> #!/bin/sh
> #
>
> /usr/local/bin/linux-v3.11-8718-g0fb5ca1 earlyprintk 
> ubda=/home/tfoerste/virtual/uml/n22unst4 ubdb=/mnt/ramdisk/n22unst4_swap 
> eth0=tuntap,tap2,72:ef:3d:5d:d3:db mem=1025M con0=fd:0,fd:1 con=pts 
> umid=uml_n22unst4 rootfstype=ext4
>
>
> then during start of the UML I get
>
> ...
> Netdevice 0 (72:ef:3d:5d:d3:db) :
> TUN/TAP backend -
> winch_thread : TIOCSCTTY failed on fd 1 err = 1

Hmm, that's a regression introduced by:
commit 250127216dd6635f5730752d7444bdec992aecb0
Author: Richard Weinberger <rich...@nod.at>
Date:   Sun Aug 18 13:30:09 2013 +0200

    um: Run UML in it's own session.

    If UML is not run by a shell it can happen that UML
    will kill unrelated proceses upon a fatal exit because
    it issues a kill(0, ...).
    To prevent such oddities we create a new session in main().

    Reported-and-tested-by: Richard W.M. Jones <rjo...@redhat.com>
    Signed-off-by: Richard Weinberger <rich...@nod.at>


The winch-thread also has it's own session, this seems to be to an issue.

-- 
Thanks,
//richard

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