I found an easy way to reproduce the issue:
navigate to a directory that contains a dvi-file in nautilus, and you
end up with:
top - 15:15:40 up 4:09, 3 users, load average: 3,36, 1,64, 1,68
Aufgaben: 248 total, 2 running, 246 sleeping, 0 stopped, 0 zombie
%Cpu(s): 35,0 be, 39,8 sy, 0,8 ni, 24,4 un, 0,0 wa, 0,0 hi, 0,0 si, 0,0 st
KiB Mem: 31791692 total, 5193104 used, 26598588 free, 80824 buffers
KiB Swap: 32444412 total, 1044628 used, 31399784 free. 1865100 cached Mem
PID BENUTZER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
362 root 20 0 86720 12020 11856 R 97,8 0,0 166:36.81
systemd-journal
9600 hars 20 0 1118484 823024 14412 S 95,8 2,6 2:07.34
evince-thumbnai
730 syslog 20 0 255896 1132 728 S 91,5 0,0 163:30.19 rsyslogd
And fix this stupid bugtracker to support markdown or whatever.
** Description changed:
- I just noticed that I had evince-thumbnailer, gnome-session, and at
+ I just noticed that I had evince-thumbnailer, systemd-journald, and at
least two instances of rsyslogd each using about a full core, and
writing about 50GB worth of the two lines:
Sep 20 12:07:41 dirichlet gnome-session[1581]: page: Warning: font `cmr10'
not found, trying metric files instead
Sep 20 12:07:41 dirichlet gnome-session[1581]: page: Error:
/usr/share/texlive/texmf-dist/fonts/tfm/public/cm/cmr10.tfm: File corrupted, or
not a TFM file
into /var/log/syslog.
The last few lines leading up to that were:
Sep 20 12:06:45 dirichlet udisksd[1845]: Mounted /dev/sdc1 at
/media/hars/Backup2 on behalf of uid 1000
Sep 20 12:06:45 dirichlet gnome-session[1581]: (nautilus:3898): Gtk-CRITICAL
**: gtk_icon_theme_get_for_screen: assertion 'GDK_IS_SCREEN (screen)' failed
Sep 20 12:06:45 dirichlet gnome-session[1581]: (nautilus:3898):
GLib-GObject-WARNING **: invalid (NULL) pointer instance
Sep 20 12:06:45 dirichlet gnome-session[1581]: (nautilus:3898):
GLib-GObject-CRITICAL **: g_signal_connect_object: assertion
'G_TYPE_CHECK_INSTANCE (instance)' failed
Sep 20 12:07:30 dirichlet gnome-session[1581]: (nautilus:1816):
GnomeDesktop-WARNING **: Unable to create loader for mime type audio/x-wav:
Unrecognized image file format
Sep 20 12:07:30 dirichlet gnome-session[1581]: (nautilus:1816):
GnomeDesktop-WARNING **: Error creating thumbnail for
file:///media/hars/Backup2/some/path/unbekannt.wav: Unrecognized image file
format
Sep 20 12:07:31 dirichlet gnome-session[1581]: (nautilus:1816):
GnomeDesktop-WARNING **: Unable to create loader for mime type audio/x-wav:
Unrecognized image file format
Sep 20 12:07:31 dirichlet gnome-session[1581]: (nautilus:1816):
GnomeDesktop-WARNING **: Error creating thumbnail for
file:///media/hars/Backup2/some/path/unbekannt.wav: Unrecognized image file
format
Sep 20 12:07:40 dirichlet gnome-session[1581]: kpathsea: Running mktexpk
--mfmode / --bdpi 600 --mag 1+57/600 --dpi 657 cmr10
Sep 20 12:07:41 dirichlet gnome-session[1581]: /usr/bin/mktexpk: 1:
/usr/bin/mktexpk: /usr/share/texlive/texmf-dist/web2c/mktexnam: Permission
denied
Sep 20 12:07:41 dirichlet kernel: [ 3712.286587] audit_printk_skb: 39
callbacks suppressed
Sep 20 12:07:41 dirichlet kernel: [ 3712.286594] audit: type=1400
audit(1442743661.594:25): apparmor="DENIED" operation="exec"
profile="/usr/bin/evince-thumbnailer//sanitized_helper"
name="/usr/share/texlive/texmf-dist/web2c/mktexnam" pid=4036 comm="mktexpk"
requested_mask="x" denied_mask="x" fsuid=1000 ouid=0
Sep 20 12:07:41 dirichlet gnome-session[1581]: mktexpk: / already exists.
Sep 20 12:07:41 dirichlet gnome-session[1581]: /usr/bin/mktexpk: 229:
/usr/bin/mktexpk: /usr/share/texlive/texmf-dist/web2c/mktexupd: Permission
denied
Sep 20 12:07:41 dirichlet kernel: [ 3712.291366] audit: type=1400
audit(1442743661.598:26): apparmor="DENIED" operation="exec"
profile="/usr/bin/evince-thumbnailer//sanitized_helper"
name="/usr/share/texlive/texmf-dist/web2c/mktexupd" pid=4041 comm="mktexpk"
requested_mask="x" denied_mask="x" fsuid=1000 ouid=0
Sep 20 12:07:41 dirichlet gnome-session[1581]: kpathsea: Appending font
creation commands to missfont.log.
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: evince 3.14.2-0ubuntu2
ProcVersionSignature: Ubuntu 3.19.0-28.30-generic 3.19.8-ckt5
Uname: Linux 3.19.0-28-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.4
Architecture: amd64
CurrentDesktop: Unity
Date: Sun Sep 20 15:02:02 2015
InstallationDate: Installed on 2014-04-14 (523 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Beta amd64 (20140326)
SourcePackage: evince
UpgradeStatus: Upgraded to vivid on 2015-05-01 (141 days ago)
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https://bugs.launchpad.net/bugs/1497727
Title:
evince-thumbnailer DOSes rsyslogd
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