This may or may not be related to this:
https://bugs.launchpad.net/inkscape/+bug/1259100

This is the output I get during usage of Inkscape before the crash:

root@volomike-VirtualBox:/home/volomike# gdb /usr/bin/inkscape
GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.04) 7.11.1
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "i686-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from /usr/bin/inkscape...(no debugging symbols found)...done.
(gdb) run
Starting program: /usr/bin/inkscape 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[New Thread 0xb2f7db40 (LWP 6175)]
[New Thread 0xb277cb40 (LWP 6176)]
[New Thread 0xb1f7bb40 (LWP 6177)]
[New Thread 0xb137db40 (LWP 6179)]
[New Thread 0xb080fb40 (LWP 6181)]
[New Thread 0xb000eb40 (LWP 6182)]
[New Thread 0xaf4ffb40 (LWP 6183)]
[Thread 0xb000eb40 (LWP 6182) exited]

(inkscape:6171): Pango-CRITICAL **: pango_font_family_list_faces:
assertion 'PANGO_IS_FONT_FAMILY (family)' failed

(inkscape:6171): Gtk-CRITICAL **: IA__gtk_tree_view_scroll_to_cell: assertion 
'tree_view->priv->tree != NULL' failed
[Thread 0xb080fb40 (LWP 6181) exited]
bt

(inkscape:6171): Pango-CRITICAL **: pango_font_family_list_faces:
assertion 'PANGO_IS_FONT_FAMILY (family)' failed

(inkscape:6171): Gtk-CRITICAL **: IA__gtk_tree_view_scroll_to_cell:
assertion 'tree_view->priv->tree != NULL' failed

(inkscape:6171): Pango-CRITICAL **: pango_font_family_list_faces:
assertion 'PANGO_IS_FONT_FAMILY (family)' failed

(inkscape:6171): Gtk-CRITICAL **: IA__gtk_tree_view_scroll_to_cell: assertion 
'tree_view->priv->tree != NULL' failed
[Thread 0xaf4ffb40 (LWP 6183) exited]
[Thread 0xb1f7bb40 (LWP 6177) exited]
[Thread 0xb277cb40 (LWP 6176) exited]
[Thread 0xb2f7db40 (LWP 6175) exited]
[Thread 0xb2f7f940 (LWP 6171) exited]
[Inferior 1 (process 6171) exited normally]
(gdb) bt
No stack.
(gdb) bt
No stack.
(gdb) quit

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to inkscape in Ubuntu.
https://bugs.launchpad.net/bugs/1633935

Title:
  Inkscape freezes when selecting font

Status in inkscape package in Ubuntu:
  New

Bug description:
  If you perform the following steps, Inkscape freezes. It's a
  showstopper of using Inkscape at all with fonts.

  1. Launch Inkscape.
  2. On the new document, click the A on the left toolbar to create a new 
textbox.
  3. Drag a marquee in your document for the size of your textbox.
  4. Type the text "This is a test" and then choose Select All to select it all.
  5. Click the T in the top toolbar to open the Text and Font control panel.
  6. Choose DejaVu Sans.
  7. Put another window on top of the current window, such as switch to a web 
browser.
  8. Come back to Inkscape -- it won't repaint the window because it's frozen.

  Alternatively, you can also recreate the bug this way too:

  1. Launch Inkscape.
  2. On the new document, click the A on the left toolbar to create a new 
textbox.
  3. Drag a marquee in your document for the size of your textbox.
  4. Type the text "This is a test" and then choose Select All to select it all.
  5. Click the T in the top toolbar to open the Text and Font control panel.
  6. Choose DejaVu Sans.
  7. Set the font size to 48 from the Font Size: selector on that control 
panel. You'll notice that the dropdown occurs, when you select it, Inkscape 
freezes.

  Note that I'm running Inkscape 0.91 on Lubuntu Desktop 16.04 inside
  Oracle Virtualbox version 5.0.26 r108824 on a Mac Air 13" running OSX
  10.12 (Sierra) and have loaded the Virtualbox extensions. Note that I
  also tried the following things to see if they fixed the problem:

  - full apt-get update; apt-get upgrade; apt-get dist-upgrade, reboot,
  and tried that again

  - apt purge fonts-noto-cjk

  - tried briefly the latest stable PPA of Inkscape from Inkscape.org in
  my apt, and upgrade to the latest Inkscape -- that failed, so I did a
  purge remove of that version of inkscape, removed the PPA, redid my
  apt-get update, and installed the version that comes with Ubuntu 16.04
  (Inkscape 0.91).

  - unset GTK_IM_MODULE && inkscape

  All failed to show any fix.

  
  All failed to show any different result.

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https://bugs.launchpad.net/ubuntu/+source/inkscape/+bug/1633935/+subscriptions

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