diff -Nru gtksourceview2-2.10.5/debian/changelog gtksourceview2-2.10.5/debian/changelog
--- gtksourceview2-2.10.5/debian/changelog	2014-09-06 16:32:28.000000000 +0400
+++ gtksourceview2-2.10.5/debian/changelog	2015-03-10 16:51:47.000000000 +0300
@@ -1,3 +1,11 @@
+gtksourceview2 (2.10.5-2.1) UNRELEASED; urgency=medium
+
+  * Non-maintainer upload.
+  * fix-invalidate.patch: new patch. Don't invalidate region when
+    text is deleted and engine is disabled. Fixes crash.
+
+ -- Vlad Orlov <monsta@inbox.ru>  Tue, 10 Mar 2015 16:50:14 +0300
+
 gtksourceview2 (2.10.5-2) unstable; urgency=medium
 
   * Team upload.
diff -Nru gtksourceview2-2.10.5/debian/patches/fix-invalidate.patch gtksourceview2-2.10.5/debian/patches/fix-invalidate.patch
--- gtksourceview2-2.10.5/debian/patches/fix-invalidate.patch	1970-01-01 03:00:00.000000000 +0300
+++ gtksourceview2-2.10.5/debian/patches/fix-invalidate.patch	2015-03-10 16:51:57.000000000 +0300
@@ -0,0 +1,71 @@
+From abef41da8c541c814bf631f69c92e0c431c610ad Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Jos=C3=A9=20Aliste?= <jaliste@src.gnome.org>
+Date: Sat, 25 Dec 2010 23:55:53 -0300
+Subject: contextengine: don't invalidate region when text is deleted and
+ engine is disabled.
+
+Fixes bug #607677
+
+Index: gtksourceview2-2.10.5/gtksourceview/gtksourcecontextengine.c
+===================================================================
+--- gtksourceview2-2.10.5.orig/gtksourceview/gtksourcecontextengine.c
++++ gtksourceview2-2.10.5/gtksourceview/gtksourcecontextengine.c
+@@ -2003,26 +2003,23 @@ gtk_source_context_engine_text_inserted
+ 	GtkTextIter iter;
+ 	GtkSourceContextEngine *ce = GTK_SOURCE_CONTEXT_ENGINE (engine);
+ 
+-	/* Happens when highlighting is disabled */
+-	if (ce->priv->buffer == NULL)
++	if (!ce->priv->disabled)
+ 	{
+-		return;
+-	}
+-
+-	g_return_if_fail (start_offset < end_offset);
++		g_return_if_fail (start_offset < end_offset);
+ 
+-	invalidate_region (ce, start_offset, end_offset - start_offset);
++		invalidate_region (ce, start_offset, end_offset - start_offset);
+ 
+-	/* If end_offset is at the start of a line (enter key pressed) then
+-	 * we need to invalidate the whole new line, otherwise it may not be
+-	 * highlighted because the engine analyzes the previous line, end
+-	 * context there is none, start context at this line is none too,
+-	 * and the engine stops. */
+-	gtk_text_buffer_get_iter_at_offset (ce->priv->buffer, &iter, end_offset);
+-	if (gtk_text_iter_starts_line (&iter) && !gtk_text_iter_ends_line (&iter))
+-	{
+-		gtk_text_iter_forward_to_line_end (&iter);
+-		invalidate_region (ce, gtk_text_iter_get_offset (&iter), 0);
++		/* If end_offset is at the start of a line (enter key pressed) then
++		 * we need to invalidate the whole new line, otherwise it may not be
++		 * highlighted because the engine analyzes the previous line, end
++		 * context there is none, start context at this line is none too,
++		 * and the engine stops. */
++		gtk_text_buffer_get_iter_at_offset (ce->priv->buffer, &iter, end_offset);
++		if (gtk_text_iter_starts_line (&iter) && !gtk_text_iter_ends_line (&iter))
++		{
++			gtk_text_iter_forward_to_line_end (&iter);
++			invalidate_region (ce, gtk_text_iter_get_offset (&iter), 0);
++		}
+ 	}
+ }
+ 
+@@ -2147,10 +2144,14 @@ gtk_source_context_engine_text_deleted (
+ 					gint             offset,
+ 					gint             length)
+ {
++	GtkSourceContextEngine *ce = GTK_SOURCE_CONTEXT_ENGINE (engine);
++
+ 	g_return_if_fail (length > 0);
+-	invalidate_region (GTK_SOURCE_CONTEXT_ENGINE (engine),
+-			   offset,
+-			   - length);
++	
++	if (!ce->priv->disabled)
++	{
++		invalidate_region (ce, offset, - length);
++	}
+ }
+ 
+ /**
diff -Nru gtksourceview2-2.10.5/debian/patches/series gtksourceview2-2.10.5/debian/patches/series
--- gtksourceview2-2.10.5/debian/patches/series	2014-09-06 16:32:28.000000000 +0400
+++ gtksourceview2-2.10.5/debian/patches/series	2015-03-10 16:51:51.000000000 +0300
@@ -1,2 +1,3 @@
 drop-gettext-configure.patch
 99_ltmain_as-needed.patch
+fix-invalidate.patch