#0  INT_cairo_surface_set_device_scale (surface=0x0, x_scale=1, y_scale=1) at ../../../../src/cairo-surface.c:1793
  [Error: cairo-surface.c was not found in source tree]
#1  0x00007f4874f9604e in set_device_scale_on_surface (device_scale=<optimized out>, surface=<optimized out>) at ev-pixbuf-cache.c:266
  261: 
  262: static void
  263: set_device_scale_on_surface (cairo_surface_t *surface,
  264:                              int              device_scale)
  265: {
  266: 	cairo_surface_set_device_scale (surface, device_scale, device_scale);
  267: }
  268: 
  269: static void
  270: copy_job_to_job_info (EvJobRender   *job_render,
  271: 		      CacheJobInfo  *job_info,
#2  copy_job_to_job_info (job_render=job_render@entry=0x55aa50112cb0, job_info=job_info@entry=0x55aa4fa92440, pixbuf_cache=pixbuf_cache@entry=0x55aa50066f30) at ev-pixbuf-cache.c:278
  273: {
  274: 	if (job_info->surface) {
  275: 		cairo_surface_destroy (job_info->surface);
  276: 	}
  277: 	job_info->surface = cairo_surface_reference (job_render->surface);
  278: 	set_device_scale_on_surface (job_info->surface, job_info->device_scale);
  279: 	if (pixbuf_cache->inverted_colors) {
  280: 		ev_document_misc_invert_surface (job_info->surface);
  281: 	}
  282: 
  283: 	job_info->points_set = FALSE;
#3  0x00007f4874f96211 in job_finished_cb (job=<optimized out>, pixbuf_cache=0x55aa50066f30) at ev-pixbuf-cache.c:330
  325: 		return;
  326: 	}
  327: 
  328: 	job_info = find_job_cache (pixbuf_cache, job_render->page);
  329: 
  330: 	copy_job_to_job_info (job_render, job_info, pixbuf_cache);
  331: 	g_signal_emit (pixbuf_cache, signals[JOB_FINISHED], 0, job_info->region);
  332: }
  333: 
  334: /* This checks a job to see if the job would generate the right sized pixbuf
  335:  * given a scale.  If it won't, it removes the job and clears it to NULL.
#4  0x00007f487421d802 in g_closure_invoke () from /tmp/apport_sandbox_6hg0kzgh/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0.6400.3
#5  0x00007f4874231814 in signal_emit_unlocked_R () from /tmp/apport_sandbox_6hg0kzgh/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0.6400.3
#6  0x00007f487423cb9e in g_signal_emit_valist () from /tmp/apport_sandbox_6hg0kzgh/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0.6400.3
#7  0x00007f487423d0d3 in g_signal_emit () from /tmp/apport_sandbox_6hg0kzgh/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0.6400.3
#8  0x00007f4874f8d3eb in emit_finished (job=<optimized out>) at ev-jobs.c:157
  152: 
  153: 	if (job->cancelled) {
  154: 		ev_debug_message (DEBUG_JOBS, "%s (%p) job was cancelled, do not emit finished", EV_GET_TYPE_NAME (job), job);
  155: 	} else {
  156: 		ev_profiler_stop (EV_PROFILE_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
  157: 		g_signal_emit (job, job_signals[FINISHED], 0);
  158: 	}
  159: 
  160: 	return FALSE;
  161: }
  162: 
#9  emit_finished (job=<optimized out>) at ev-jobs.c:147
  142: 			      g_cclosure_marshal_VOID__VOID,
  143: 			      G_TYPE_NONE, 0);
  144: }
  145: 
  146: static gboolean
  147: emit_finished (EvJob *job)
  148: {
  149: 	ev_debug_message (DEBUG_JOBS, "%s (%p)", EV_GET_TYPE_NAME (job), job);
  150: 
  151: 	job->idle_finished_id = 0;
  152: 
#10 0x00007f487412fe8e in g_main_context_dispatch () from /tmp/apport_sandbox_6hg0kzgh/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0.6400.3
#11 0x00007f4874130240 in g_main_context_iterate.isra () from /tmp/apport_sandbox_6hg0kzgh/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0.6400.3
#12 0x00007f48741302e3 in g_main_context_iteration () from /tmp/apport_sandbox_6hg0kzgh/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0.6400.3
#13 0x00007f487434bfd5 in g_application_run (application=0x55aa4fb0a390, argc=<optimized out>, argv=<optimized out>) at ../../../gio/gapplication.c:2559
  [Error: gapplication.c was not found in source tree]
#14 0x000055aa4dac47f6 in main ()