Bug#981481: gnome-font-viewer: Program hangs system

[Antonio Cebrián]

Package: gnome-font-viewer
Version: 3.34.0-2

Programs hangs system (XFCE) after first UI interaction (scroll or maximize
window). Some times the program crashes on start.

* "$HOME/xsession-errors" file contains:

(gnome-font-viewer:5742): Gdk-ERROR **: 11:30:19.364: The program
'gnome-font-viewer' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadShmSeg (invalid shared segment parameter)'.
  (Details: serial 850 error_code 128 request_code 130 (MIT-SHM) minor_code
5)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the GDK_SYNCHRONIZE environment
   variable to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)

* Continuous execution shows (about one crash for each five executions):

while true; do LANG=C GDK_SYNCHRONIZE=1 gnome-font-viewer; done

(gnome-font-viewer:2028): Gdk-ERROR **: 20:08:13.057: The program
'gnome-font-viewer' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadIDChoice (invalid resource ID chosen for this
connection)'.
  (Details: serial 1175 error_code 14 request_code 130 (MIT-SHM) minor_code
5)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the GDK_SYNCHRONIZE environment
   variable to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)
`trap' para punto de parada/seguimiento
[xcb] Unknown sequence number while processing queue
[xcb] Most likely this is a multi-threaded client and XInitThreads has not
been called
[xcb] Aborting, sorry about that.
gnome-font-viewer: ../../src/xcb_io.c:269: poll_for_event: Assertion
`!xcb_xlib_threads_sequence_lost' failed.
Abortado
[xcb] Unknown sequence number while processing reply
[xcb] Most likely this is a multi-threaded client and XInitThreads has not
been called
[xcb] Aborting, sorry about that.
gnome-font-viewer: ../../src/xcb_io.c:725: _XReply: Assertion
`!xcb_xlib_threads_sequence_lost' failed.
Abortado

(gnome-font-viewer:2106): Gdk-ERROR **: 20:08:34.873: The program
'gnome-font-viewer' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadIDChoice (invalid resource ID chosen for this
connection)'.
  (Details: serial 1196 error_code 14 request_code 130 (MIT-SHM) minor_code
5)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the GDK_SYNCHRONIZE environment
   variable to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)
`trap' para punto de parada/seguimiento

(gnome-font-viewer:2119): Gdk-ERROR **: 20:08:35.134: The program
'gnome-font-viewer' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadIDChoice (invalid resource ID chosen for this
connection)'.
  (Details: serial 1220 error_code 14 request_code 130 (MIT-SHM) minor_code
5)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the GDK_SYNCHRONIZE environment
   variable to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)
`trap' para punto de parada/seguimiento
[xcb] Unknown sequence number while processing reply
[xcb] Most likely this is a multi-threaded client and XInitThreads has not
been called
[xcb] Aborting, sorry about that.
gnome-font-viewer: ../../src/xcb_io.c:725: _XReply: Assertion
`!xcb_xlib_threads_sequence_lost' failed.
Abortado
[xcb] Unknown sequence number while processing reply
[xcb] Most likely this is a multi-threaded client and XInitThreads has not
been called
[xcb] Aborting, sorry about that.
gnome-font-viewer: ../../src/xcb_io.c:725: _XReply: Assertion
`!xcb_xlib_threads_sequence_lost' failed.
Abortado

(gnome-font-viewer:2210): Gdk-ERROR **: 20:08:46.193: The program
'gnome-font-viewer' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadIDChoice (invalid resource ID chosen for this
connection)'.
  (Details: serial 1154 error_code 14 request_code 130 (MIT-SHM) minor_code
5)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the GDK_SYNCHRONIZE environment
   variable to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)
`trap' para punto de parada/seguimiento
^C

Best regards.
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