diff -Nru cups-1.6.1/debian/changelog cups-1.6.1/debian/changelog
--- cups-1.6.1/debian/changelog	2012-12-03 15:03:41.000000000 +0100
+++ cups-1.6.1/debian/changelog	2013-04-23 14:46:42.000000000 +0200
@@ -1,3 +1,11 @@
+cups (1.6.1-0ubuntu11.4) quantal-proposed; urgency=low
+
+  * debian/cups.logrotate: Do not remove CUPS' log files while the CUPS
+    daemon is running. Stop CUPS, move the files, and then start it again.
+    This avoids crashes during the log rotation process (LP: #1086019).
+
+ -- Till Kamppeter <till.kamppeter@gmail.com>  Tue, 23 Apr 2013 12:12:12 +0200
+
 cups (1.6.1-0ubuntu11.3) quantal-security; urgency=low
 
   * SECURITY UPDATE: privilege escalation via config file editing
diff -Nru cups-1.6.1/debian/cups.logrotate cups-1.6.1/debian/cups.logrotate
--- cups-1.6.1/debian/cups.logrotate	2012-07-28 09:27:10.000000000 +0200
+++ cups-1.6.1/debian/cups.logrotate	2013-04-23 11:54:54.000000000 +0200
@@ -3,9 +3,16 @@
 	missingok
 	rotate 7
 	sharedscripts
-	postrotate
+	prerotate
 		if [ -e /var/run/cups/cupsd.pid ]; then
-			invoke-rc.d --quiet cups force-reload > /dev/null
+			invoke-rc.d --quiet cups stop > /dev/null
+			touch /var/run/cups/cupsd.stopped
+		fi
+	endscript
+	postrotate
+		if [ -e /var/run/cups/cupsd.stopped ]; then
+			rm /var/run/cups/cupsd.stopped
+			invoke-rc.d --quiet cups start > /dev/null
 			sleep 10
 		fi
 	endscript