Index: openacs-4/packages/xotcl-request-monitor/www/long-calls.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xotcl-request-monitor/www/long-calls.tcl,v
diff -u -r1.4.2.7 -r1.4.2.8
--- openacs-4/packages/xotcl-request-monitor/www/long-calls.tcl	1 Feb 2021 10:47:36 -0000	1.4.2.7
+++ openacs-4/packages/xotcl-request-monitor/www/long-calls.tcl	15 Sep 2021 10:25:15 -0000	1.4.2.8
@@ -52,9 +52,16 @@
 set c [read $F]; close $F
 
 set offsets [regexp -indices -all -inline \n $c]
-set o [lindex $offsets end-$lines]
-set c1 [string range $c [lindex $o 0]+1 end]
+set offset [lindex $offsets end-$lines 0]
+if {$offset eq ""} {
+    #
+    # Trim potential partial lines
+    #
+    set offset [lindex $offsets 0 0]
+}
+set c1 [string range $c $offset+1 end]
 set rows ""
+
 foreach line [lreverse [split $c1 \n]] {
     if {$line eq ""} continue
     lassign $line wday mon day hours tz year dash url time uid ip contentType pool