GNOME Bugzilla – Bug 751308
Crash: xf86openConsole: VT_ACTIVATE failed: Operation not permitted
Last modified: 2016-01-14 18:38:11 UTC
GDM 3.16.1 always fails to start in Fedora 22, while GDM 3.16.0.1 works fine. This was reported in Fedora by two users (including me): https://bugzilla.redhat.com/show_bug.cgi?id=1232786 And in Arch (where the reporter originally noted 3.16.0.1 works): https://bugs.archlinux.org/task/44588 All three users have Intel cards, if that's related. The logs contain this: $ systemctl status 'gdm'; * gdm.service - GNOME Display Manager Loaded: loaded (/usr/lib/systemd/system/gdm.service; enabled; vendor preset: enabled) Active: active (running) since Tue 2015-06-16 12:27:54 CEST; 2min 8s ago Main PID: 1018 (gdm) CGroup: /system.slice/gdm.service `-1018 /usr/sbin/gdm Jun 16 12:28:32 nazgul.tolkien gdm[1018]: Unable to kill session worker process Jun 16 12:28:32 nazgul.tolkien gdm[1018]: Child process 6150 was already dead. Jun 16 12:28:32 nazgul.tolkien gdm[1018]: Unable to kill session worker process Jun 16 12:28:32 nazgul.tolkien gdm[1018]: Could not start command '/usr/libexec/gdm-session-worker': Too many open files Jun 16 12:28:32 nazgul.tolkien gdm[1018]: GLib: g_child_watch_add_full: assertion 'pid > 0' failed Jun 16 12:28:32 nazgul.tolkien gdm[1018]: Child process -6163 was already dead. Jun 16 12:28:32 nazgul.tolkien gdm[1018]: Child process 6159 was already dead. Jun 16 12:28:32 nazgul.tolkien gdm[1018]: Unable to kill session worker process Jun 16 12:28:32 nazgul.tolkien gdm[1018]: Child process 6159 was already dead. Jun 16 12:28:32 nazgul.tolkien gdm[1018]: Unable to kill session worker process $ journalctl --all | less; Jun 16 12:35:08 nazgul.tolkien /usr/libexec/gdm-x-session[1491]: (II) modesetting: Driver for Modesetting Kernel Drivers: kms Jun 16 12:35:08 nazgul.tolkien /usr/libexec/gdm-x-session[1491]: (II) FBDEV: driver for framebuffer: fbdev Jun 16 12:35:08 nazgul.tolkien /usr/libexec/gdm-x-session[1491]: (II) VESA: driver for VESA chipsets: vesa Jun 16 12:35:08 nazgul.tolkien /usr/libexec/gdm-x-session[1491]: (EE) Jun 16 12:35:08 nazgul.tolkien /usr/libexec/gdm-x-session[1491]: Fatal server error: Jun 16 12:35:08 nazgul.tolkien /usr/libexec/gdm-x-session[1491]: (EE) xf86OpenConsole: VT_ACTIVATE failed: Operation not permitted Jun 16 12:35:08 nazgul.tolkien /usr/libexec/gdm-x-session[1491]: (EE) Jun 16 12:35:08 nazgul.tolkien /usr/libexec/gdm-x-session[1491]: (EE) Jun 16 12:35:08 nazgul.tolkien /usr/libexec/gdm-x-session[1491]: Please consult the Fedora Project support Jun 16 12:35:08 nazgul.tolkien /usr/libexec/gdm-x-session[1491]: at http://wiki.x.org Jun 16 12:35:08 nazgul.tolkien /usr/libexec/gdm-x-session[1491]: for help. Jun 16 12:35:08 nazgul.tolkien /usr/libexec/gdm-x-session[1491]: (EE) Please also check the log file at "/var/lib/gdm/.local/share/xorg/Xorg.0.log" for additional information. Jun 16 12:35:08 nazgul.tolkien /usr/libexec/gdm-x-session[1491]: (EE) Jun 16 12:35:08 nazgul.tolkien /usr/libexec/gdm-x-session[1491]: (WW) xf86CloseConsole: KDSETMODE failed: Operation not permitted Jun 16 12:35:08 nazgul.tolkien /usr/libexec/gdm-x-session[1491]: (WW) xf86CloseConsole: VT_SETMODE failed: Operation not permitted Jun 16 12:35:08 nazgul.tolkien /usr/libexec/gdm-x-session[1491]: (EE) Jun 16 12:35:08 nazgul.tolkien /usr/libexec/gdm-x-session[1491]: FatalError re-entered, aborting Jun 16 12:35:08 nazgul.tolkien /usr/libexec/gdm-x-session[1491]: (EE) xf86CloseConsole: VT_ACTIVATE failed: Operation not permitted Jun 16 12:35:08 nazgul.tolkien /usr/libexec/gdm-x-session[1491]: (EE) Jun 16 12:35:08 nazgul.tolkien audit[1493]: <audit-1701> auid=4294967295 uid=42 gid=42 ses=4294967295 subj=system_u:system_r:xserver_t:s0-s0:c0.c1023 pid=1493 comm="Xorg" exe="/usr/libexec/Xorg" sig=6 Jun 16 12:35:08 nazgul.tolkien gnome-session[1148]: could not connect to wayland server Jun 16 12:35:08 nazgul.tolkien gnome-session[1148]: (EE) Jun 16 12:35:08 nazgul.tolkien gnome-session[1148]: Fatal server error: Jun 16 12:35:08 nazgul.tolkien gnome-session[1148]: (EE) Couldn't add screen Jun 16 12:35:08 nazgul.tolkien gnome-session[1148]: (EE) Jun 16 12:35:08 nazgul.tolkien /usr/libexec/gdm-x-session[1491]: Unable to run X server Jun 16 12:35:08 nazgul.tolkien gdm-launch-environment][1483]: pam_unix(gdm-launch-environment:session): session closed for user gdm Jun 16 12:35:08 nazgul.tolkien audit[1483]: <audit-1106> pid=1483 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:xdm_t:s0-s0:c0.c1023 msg='op=PAM:session_close grantors=pam_keyinit,pam_keyinit,pam_limits,pam_systemd,pam_unix acct="gdm" exe="/usr/libexec/gdm-session-worker" hostname=? addr=? terminal=/dev/tty1 res=success' Jun 16 12:35:08 nazgul.tolkien audit[1483]: <audit-1104> pid=1483 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:xdm_t:s0-s0:c0.c1023 msg='op=PAM:setcred grantors=pam_permit acct="gdm" exe="/usr/libexec/gdm-session-worker" hostname=? addr=? terminal=/dev/tty1 res=success' Jun 16 12:35:08 nazgul.tolkien gdm[985]: Child process -1491 was already dead. Jun 16 12:35:08 nazgul.tolkien gdm[985]: Child process 1483 was already dead. Jun 16 12:35:08 nazgul.tolkien gdm[985]: Unable to kill session worker process Jun 16 12:35:08 nazgul.tolkien gdm[985]: Child process 1483 was already dead. Jun 16 12:35:08 nazgul.tolkien gdm[985]: Unable to kill session worker process Jun 16 12:35:08 nazgul.tolkien systemd-logind[937]: Removed session c2. ... $ tail -n20 '/var/lib/gdm/.local/share/xorg/Xorg.0.log'; i810, i810-dc100, i810e, i815, i830M, 845G, 854, 852GM/855GM, 865G, 915G, E7221 (i915), 915GM, 945G, 945GM, 945GME, Pineview GM, Pineview G, 965G, G35, 965Q, 946GZ, 965GM, 965GME/GLE, G33, Q35, Q33, GM45, 4 Series, G45/G43, Q45/Q43, G41, B43 [ 54.209] (II) intel: Driver for Intel(R) HD Graphics: 2000-6000 [ 54.210] (II) intel: Driver for Intel(R) Iris(TM) Graphics: 5100, 6100 [ 54.210] (II) intel: Driver for Intel(R) Iris(TM) Pro Graphics: 5200, 6200, P6300 [ 54.210] (II) modesetting: Driver for Modesetting Kernel Drivers: kms [ 54.210] (II) FBDEV: driver for framebuffer: fbdev [ 54.210] (II) VESA: driver for VESA chipsets: vesa [ 54.210] (EE) Fatal server error: [ 54.210] (EE) xf86OpenConsole: VT_ACTIVATE failed: Operation not permitted [ 54.210] (EE) [ 54.210] (EE) Please consult the Fedora Project support at http://wiki.x.org for help. [ 54.210] (EE) Please also check the log file at "/var/lib/gdm/.local/share/xorg/Xorg.0.log" for additional information. [ 54.210] (EE)
Forgot to say, it sounds kind of related to Bug 745031.
Ah, and the main Arch report has many more users suffering from this: https://bugs.archlinux.org/task/44587
can you enable debugging in custom.conf reboot, reproduce, and then attach the full output of journalctl -b -a ?
Created attachment 305851 [details] journalctl -b -a Here it is. FWIW, that's with Wayland disabled, as I get another bug (screen not responding) when enabling it. Oh, and "Trop de fichiers ouverts" means "Too many open files".
(In reply to Milan Bouchet-Valat from comment #2) > Ah, and the main Arch report has many more users suffering from this: > https://bugs.archlinux.org/task/44587 I am also suffering this on Fedora.
Bump!
Is this still happening to you? If so, please post the exact distro version/release numbers of gdm and systemd. On Fedora you can get these with 'rpm -qi'. E.g. I have systemd-222-11.fc23 and gdm-1:3.18.2-1.fc23.
Unfortunately, yes (and enabling Wayland still fails too). I'm now on Fedora 23, with systemd-222-12 and kernel 4.3.3-300. The most recent GDM I tried is gdm-3.18.2-1. I'm still forced to use a custom GDM 3.16.0.1 package, which isn't even available from F22 repos now. Please suggest any ways of debugging this, I'm all ears. :-) I can test custom patches if you like. Looking at the short git log between 3.16.0.1 and 3.16.1, the culprit shouldn't be too hard to find: https://git.gnome.org/browse/gdm/log/?h=gnome-3-16-2
I wonder whether this commit might be the cause of the problem: https://git.gnome.org/browse/gdm/commit/?h=gnome-3-16-2&id=798a1ad79bdb937c4b0c9008562cd543acaf3206 If this really allows the system to drop privileges, it might explain the permission errors. Is there a way to override this environment variable after it's been set, or do I need to rebuild the package?
create a file called /etc/X11/Xwrapper.config and put needs_root_rights=yes in it. the log has this in it, which is puzzling: juin 22 20:28:30 milan dbus[702]: [system] Rejected send message, 2 matched rules; type="method_call", sender=":1.2018" (uid=42 pid=11761 comm="/usr/libexec/Xorg vt1 -displayfd 3 -auth /run/user") interface="org.freedesktop.login1.Session" member="TakeControl" error name="(unset)" requested_reply="0" destination="org.freedesktop.login1" (uid=0 pid=683 comm="/usr/lib/systemd/systemd-logind ") So the X server can't ask logind for control of the session because dbus is rejecting the call. Is SELinux getting in the way? Do you have a syntax error in one of the files in /etc/dbus-1/system.d/ which is making the system bus choke before gets around to loading /etc/dbus-1/system.d/org.freedesktop.login1.conf ?
Ah, good catch. Indeed, I had a loading /etc/dbus-1/system.d/org.freedesktop.login1.conf.rpmnew file waiting to be used. No idea why RPM detected that I had manually edited that file... I can't believe I missed that obvious explanation. Thanks for your help!
It was not obvious at all.... Very unfortunate that something like this could break gdm, but I'm not sure what could be done about it.
I would think the package managers should make it more visible that some config files should be updated after a distro upgrade. Though I must admit the Fedora wiki mentions this: https://fedoraproject.org/wiki/DNF_system_upgrade