From 67854c131c2ba8c013debf466b20cb13fffa120b Mon Sep 17 00:00:00 2001
From: Ulrich Drepper <drepper@redhat.com>
Date: Thu, 29 Oct 2009 14:19:33 -0700
Subject: [PATCH] Fix repairing of memusage trace files.

---
 ChangeLog             |  5 +++++
 malloc/memusagestat.c | 32 +++++++++++++++++++-------------
 2 files changed, 24 insertions(+), 13 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index b673fd9580..48dfde724d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
 2009-10-29  Ulrich Drepper  <drepper@redhat.com>
 
+	[BZ #10717]
+	* malloc/memusagestat.c (main): Fix repairing of trace files.  We also
+	have to compute maxsize_total, we have to update the variables, and
+	the also_total handling must happen after the repair.
+
 	[BZ #10742]
 	* nscd/dbg_log.c (dbg_log): Print timestamp before the message text.
 	Based on patch by Jeffrey Bastian <jbastian@redhat.com>.
diff --git a/malloc/memusagestat.c b/malloc/memusagestat.c
index bf33175415..4d57f2cc23 100644
--- a/malloc/memusagestat.c
+++ b/malloc/memusagestat.c
@@ -191,13 +191,6 @@ main (int argc, char *argv[])
   maxsize_heap = headent[1].heap;
   maxsize_stack = headent[1].stack;
   maxsize_total = headent[0].stack;
-  if (also_total)
-    {
-      /* We use one scale and since we also draw the total amount of
-	 memory used we have to adapt the maximum.  */
-      maxsize_heap = maxsize_total;
-      maxsize_stack = maxsize_total;
-    }
 
   if (maxsize_heap == 0 && maxsize_stack == 0)
     {
@@ -210,18 +203,31 @@ main (int argc, char *argv[])
 	{
 	  if (read (fd, &next, sizeof (next)) == 0)
 	    break;
-	  if (next.heap > headent[1].heap)
-	    headent[1].heap = next.heap;
-	  if (next.stack > headent[1].stack)
-	    headent[1].stack = next.stack;
+	  if (next.heap > maxsize_heap)
+	    maxsize_heap = next.heap;
+	  if (next.stack > maxsize_stack)
+	    maxsize_stack = next.stack;
+	  if (maxsize_heap + maxsize_stack > maxsize_total)
+	    maxsize_total = maxsize_heap + maxsize_stack;
 	}
 
+      headent[0].stack = maxsize_total;
+      headent[1].heap = maxsize_heap;
+      headent[1].stack = maxsize_stack;
       headent[1].time_low = next.time_low;
       headent[1].time_high = next.time_high;
 
       /* Write the computed values in the file.  */
-      lseek (fd, sizeof (struct entry), SEEK_SET);
-      write (fd, &headent[1], sizeof (struct entry));
+      lseek (fd, 0, SEEK_SET);
+      write (fd, headent, 2 * sizeof (struct entry));
+    }
+
+  if (also_total)
+    {
+      /* We use one scale and since we also draw the total amount of
+	 memory used we have to adapt the maximum.  */
+      maxsize_heap = maxsize_total;
+      maxsize_stack = maxsize_total;
     }
 
   start_time = ((uint64_t) headent[0].time_high) << 32 | headent[0].time_low;
-- 
2.11.4.GIT