In my case, the error message is different. But regardless the reason of the error, vino-server should self control and not repeat indefinitely the same error again. Following is my error which fills .xsession-errors with Gib of data until my /home partition is filled.
** (update-notifier:30613): DEBUG: --security-updates-unattended: 0 Window manager warning: Buggy client sent a _NET_ACTIVE_WINDOW message with a timestamp of 0 for 0x3e00025 (Update Man) Window manager warning: meta_window_activate called by a pager with a 0 timestamp; the pager needs to be fixed. ** (update-notifier:30613): DEBUG: --security-updates-unattended: 0 Window manager warning: Buggy client sent a _NET_ACTIVE_WINDOW message with a timestamp of 0 for 0x3e00025 (Update Man) Window manager warning: meta_window_activate called by a pager with a 0 timestamp; the pager needs to be fixed. ** (vino-server:30491): WARNING **: VNC authentication failure from '::ffff:202.196.208.114' 02/03/2013 12:54:23 rfbAuthPasswordChecked: password check failed 02/03/2013 12:54:23 Client ::ffff:202.196.208.114 gone 02/03/2013 12:54:23 Statistics: 02/03/2013 12:54:23 framebuffer updates 0, rectangles 0, bytes 0 ** (vino-server:30491): WARNING **: Deferring authentication of '::ffff:202.196.208.114' for 5 seconds 02/03/2013 12:54:23 Authentication deferred - ignoring client message 02/03/2013 12:54:23 Authentication deferred - ignoring client message 02/03/2013 12:54:23 Authentication deferred - ignoring client message 02/03/2013 12:54:23 Authentication deferred - ignoring client message 02/03/2013 12:54:23 Authentication deferred - ignoring client message [ ... and the above message is repeated until my home partition is filled ...] -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to vino in Ubuntu. https://bugs.launchpad.net/bugs/1047679 Title: .xsession-error fills up hard-drive with vino-server errors Status in “vino” package in Ubuntu: Confirmed Bug description: The following is from .xsession-error logfile in the /home/user directory. It fills up the hard-drive taking up up to 500GB of space within three days. Today, I deleted and monitored it. The following is from it. Backend : gconf Integration : true Profile : unity Adding plugins Initializing core options...done (vino-server:2577): EggSMClient-CRITICAL **: egg_sm_client_set_mode: assertion `global_client == NULL || global_client_mode == EGG_SM_CLIENT_MODE_DISABLED' failed 07/09/2012 11:49:21 AM Autoprobing TCP port in (all) network interface 07/09/2012 11:49:21 AM Listening IPv6://[::]:5900 07/09/2012 11:49:21 AM Listening IPv4://0.0.0.0:5900 07/09/2012 11:49:21 AM Autoprobing selected port 5900 07/09/2012 11:49:21 AM Advertising security type: 'TLS' (18) 07/09/2012 11:49:21 AM Re-binding socket to listen for VNC connections on TCP port 5900 in (all) interface 07/09/2012 11:49:21 AM Listening IPv6://[::]:5900 07/09/2012 11:49:21 AM Listening IPv4://0.0.0.0:5900 07/09/2012 11:49:21 AM Clearing securityTypes 07/09/2012 11:49:21 AM Advertising security type: 'TLS' (18) 07/09/2012 11:49:21 AM Clearing securityTypes 07/09/2012 11:49:21 AM Advertising security type: 'TLS' (18) 07/09/2012 11:49:21 AM Advertising authentication type: 'No Authentication' (1) 07/09/2012 11:49:21 AM Re-binding socket to listen for VNC connections on TCP port 5900 in (all) interface 07/09/2012 11:49:21 AM Listening IPv6://[::]:5900 07/09/2012 11:49:21 AM Listening IPv4://0.0.0.0:5900 07/09/2012 11:49:21 AM Clearing securityTypes 07/09/2012 11:49:21 AM Clearing authTypes 07/09/2012 11:49:21 AM Advertising security type: 'TLS' (18) 07/09/2012 11:49:21 AM Advertising authentication type: 'VNC Authentication' (2) 07/09/2012 11:49:21 AM Clearing securityTypes 07/09/2012 11:49:21 AM Clearing authTypes 07/09/2012 11:49:21 AM Advertising security type: 'TLS' (18) 07/09/2012 11:49:21 AM Advertising authentication type: 'VNC Authentication' (2) 07/09/2012 11:49:21 AM Advertising security type: 'VNC Authentication' (2) (vino-server:2577): LIBDBUSMENU-GLIB-WARNING **: Trying to remove a child that doesn't believe we're it's parent. ** Message: applet now removed from the notification area Initializing composite options...done ** Message: using fallback from indicator to GtkStatusIcon Initializing opengl options...done Initializing decor options...done Initializing vpswitch options...done Initializing snap options...done Initializing mousepoll options...done Initializing resize options...done Initializing place options...done Initializing move options...done Initializing wall options...done Initializing grid options...done I/O warning : failed to load external entity "/home/derek/.compiz/session/10b491f39fb84b455a134703295554204600000016990038" Initializing session options...done Initializing gnomecompat options...done Initializing animation options...done Initializing fade options...done Initializing unitymtgrabhandles options...done Initializing workarounds options...done Initializing scale options...done compiz (expo) - Warn: failed to bind image to texture Initializing expo options...done (gnome-settings-daemon:2064): color-plugin-WARNING **: failed to get edid: unable to get EDID for output (gnome-settings-daemon:2064): color-plugin-WARNING **: unable to get EDID for xrandr-default: unable to get EDID for output (gnome-settings-daemon:2064): color-plugin-WARNING **: failed to reset xrandr-default gamma tables: gamma size is zero Initializing ezoom options...done (compiz:2554): GConf-CRITICAL **: gconf_client_add_dir: assertion `gconf_valid_key (dirname, NULL)' failed Initializing unityshell options...done Setting Update "icon_size" Setting Update "num_launchers" ** Message: moving back from GtkStatusIcon to indicator (vino-server:2577): GLib-CRITICAL **: the GVariant format string `(u)' has a type of `(u)' but the given value has a type of `()' (vino-server:2577): GLib-CRITICAL **: g_variant_get: assertion `valid_format_string (format_string, TRUE, value)' failed (vino-server:2577): GLib-CRITICAL **: the GVariant format string `(u)' has a type of `(u)' but the given value has a type of `()' (vino-server:2577): GLib-CRITICAL **: g_variant_get: assertion `valid_format_string (format_string, TRUE, value)' failed (vino-server:2577): GLib-CRITICAL **: the GVariant format string `(u)' has a type of `(u)' but the given value has a type of `()' (vino-server:2577): GLib-CRITICAL **: g_variant_get: assertion `valid_format_string (format_string, TRUE, value)' failed (vino-server:2577): GLib-CRITICAL **: the GVariant format string `(u)' has a type of `(u)' but the given value has a type of `()' (vino-server:2577): GLib-CRITICAL **: g_variant_get: assertion `valid_format_string (format_string, TRUE, value)' failed (vino-server:2577): GLib-CRITICAL **: the GVariant format string `(u)' has a type of `(u)' but the given value has a type of `()' (vino-server:2577): GLib-CRITICAL **: g_variant_get: assertion `valid_format_string (format_string, TRUE, value)' failed (vino-server:2577): GLib-CRITICAL **: the GVariant format string `(u)' has a type of `(u)' but the given value has a type of `()' (vino-server:2577): GLib-CRITICAL **: g_variant_get: assertion `valid_format_string (format_string, TRUE, value)' failed (vino-server:2577): GLib-CRITICAL **: the GVariant format string `(u)' has a type of `(u)' but the given value has a type of `()' (vino-server:2577): GLib-CRITICAL **: g_variant_get: assertion `valid_format_string (format_string, TRUE, value)' failed (vino-server:2577): GLib-CRITICAL **: the GVariant format string `(u)' has a type of `(u)' but the given value has a type of `()' (vino-server:2577): GLib-CRITICAL **: g_variant_get: assertion `valid_format_string (format_string, TRUE, value)' failed (vino-server:2577): GLib-CRITICAL **: the GVariant format string `(u)' has a type of `(u)' but the given value has a type of `()' (vino-server:2577): GLib-CRITICAL **: g_variant_get: assertion `valid_format_string (format_string, TRUE, value)' failed (vino-server:2577): GLib-CRITICAL **: the GVariant format string `(u)' has a type of `(u)' but the given value has a type of `()' (vino-server:2577): GLib-CRITICAL **: g_variant_get: assertion `valid_format_string (format_string, TRUE, value)' failed (vino-server:2577): GLib-CRITICAL **: the GVariant format string `(u)' has a type of `(u)' but the given value has a type of `()' (vino-server:2577): GLib-CRITICAL **: g_variant_get: assertion `valid_format_string (format_string, TRUE, value)' failed (vino-server:2577): GLib-CRITICAL **: the GVariant format string `(u)' has a type of `(u)' but the given value has a type of `()' (vino-server:2577): GLib-CRITICAL **: g_variant_get: assertion `valid_format_string (format_string, TRUE, value)' failed The vino-server continues to repeat this over and over, insanely. 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