Syslog full of error 0x6 /home/bob/foo/rxtx-devel/build/../src/termios.c(869): Descripteur invalide.

[Dash]

Hello,

syslog is full of this error, around each 5 seconds

Mar 9 11:40:23 localhost gnome-session[2163]: Error 0x6 at /home/bob/foo/rxtx-devel/build/../src/termios.c(869): Descripteur invalide.
Mar 9 11:40:23 localhost gnome-session[2163]: #015
Mar 9 11:40:23 localhost gnome-session[2163]: Error 0x6 at /home/bob/foo/rxtx-devel/build/../src/termios.c(869): Descripteur invalide.
Mar 9 11:40:23 localhost gnome-session[2163]: #015
Mar 9 11:40:23 localhost gnome-session[2163]: Error 0x6 at /home/bob/foo/rxtx-devel/build/../src/termios.c(869): Descripteur invalide.
Mar 9 11:40:23 localhost gnome-session[2163]: #015
Mar 9 11:40:23 localhost gnome-session[2163]: Error 0x6 at /home/bob/foo/rxtx-devel/build/../src/termios.c(869): Descripteur invalide.
Mar 9 11:40:23 localhost gnome-session[2163]: #015
Mar 9 11:40:23 localhost gnome-session[2163]: Error 0x6 at /home/bob/foo/rxtx-devel/build/../src/termios.c(869): Descripteur invalide.
Mar 9 11:40:23 localhost gnome-session[2163]: #015
Mar 9 11:40:23 localhost gnome-session[2163]: Error 0x6 at /home/bob/foo/rxtx-devel/build/../src/termios.c(869): Descripteur invalide.
Mar 9 11:40:23 localhost gnome-session[2163]: #015
Mar 9 11:40:23 localhost gnome-session[2163]: fixme:comm:set_queue_size insize 2048 outsize 1024 unimplemented stub

There is *no user bob* on my laptop.

Description: Ubuntu 16.04.2 LTS
Release: 16.04

gnome-session:
  Installé : 3.18.1.2-1ubuntu1.16.04.2
  Candidat : 3.18.1.2-1ubuntu1.16.04.2
 Table de version :
 *** 3.18.1.2-1ubuntu1.16.04.2 500
        500 http://fr.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 Packages
        500 http://fr.archive.ubuntu.com/ubuntu xenial-updates/universe i386 Packages
        100 /var/lib/dpkg/status
     3.18.1.2-1ubuntu1 500
        500 http://fr.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages
        500 http://fr.archive.ubuntu.com/ubuntu xenial/universe i386 Packages

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: gnome-session 3.18.1.2-1ubuntu1.16.04.2
ProcVersionSignature: Ubuntu 4.4.0-66.87-generic 4.4.44
Uname: Linux 4.4.0-66-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Mar 9 11:37:34 2017
DistributionChannelDescriptor:
 # This is a distribution channel descriptor
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-somerville-precise-amd64-20130203-1
InstallationDate: Installed on 2013-10-13 (1242 days ago)
InstallationMedia: Ubuntu 12.04 "Precise" - Build amd64 LIVE Binary 20130203-13:50
PackageArchitecture: all
SourcePackage: gnome-session
UpgradeStatus: Upgraded to xenial on 2016-10-05 (154 days ago)