From ad5141788b986c8d0ae77612ad85e17dc1abb603 Mon Sep 17 00:00:00 2001
From: Augustin Degomme <augustin.degomme@imag.fr>
Date: Tue, 4 Nov 2014 15:07:12 +0100
Subject: [PATCH 1/1] replace xbt_dynar_member by xbt_dynar_search_or_negative
 in this test.

There is a weird bug with xbt_dynar_member on some systems.
When an exception is raised, backtracking mechanism of libc6 can cause segfaults (and valgrind complains quite a lot, even on systems where it does not crash)
Is this related to https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=735090 ?

example obtained stack
 Invalid read of size 4
    at 0x476E383: backtrace (backtrace.c:141)
    by 0x43DC03B: xbt_backtrace_current (backtrace_linux.c:84)
    by 0x43DB200: xbt_dynar_search (dynar.c:474)
    by 0x43DB31F: xbt_dynar_member (dynar.c:511)
    by 0x80494A3: test_launcher (host_on_off_processes.c:35)
    by 0x43C889E: smx_ctx_sysv_wrapper (smx_context_sysv.c:187)
    by 0x46B2BDA: makecontext (makecontext.S:87)

As functionality is the same, using the exception-less version of xbt_dynar_member should avoid the problem, until we find out more about it
---
 .../host_on_off_processes.c                    | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/teshsuite/msg/host_on_off_processes/host_on_off_processes.c b/teshsuite/msg/host_on_off_processes/host_on_off_processes.c
index cb48a8a970..8c136170a0 100644
--- a/teshsuite/msg/host_on_off_processes/host_on_off_processes.c
+++ b/teshsuite/msg/host_on_off_processes/host_on_off_processes.c
@@ -32,7 +32,7 @@ int test_launcher(int argc, char *argv[])
 
   test = 1;
   // Create a process running a simple task on a host and turn the host off during the execution of the process.
-  if (xbt_dynar_member(tests, &test)){
+  if (xbt_dynar_search_or_negative(tests, &test)!=-1){
     XBT_INFO("Test 1:");
     XBT_INFO("  Create a process on Jupiter");
     argvF = xbt_new(char*, 2);
@@ -47,7 +47,7 @@ int test_launcher(int argc, char *argv[])
 
   test = 2;
   // Create a process that on a host that is turned off (this should not be possible)
-  if (xbt_dynar_member(tests, &test)){
+  if (xbt_dynar_search_or_negative(tests, &test)!=-1){
     XBT_INFO("Test 2:");
     XBT_INFO("  Turn off Jupiter");
     // adsein: Jupiter is already, hence nothing should happen
@@ -69,7 +69,7 @@ int test_launcher(int argc, char *argv[])
 
    test = 3;
   // Create a process running sucessive sleeps on a host and turn the host off during the execution of the process.
-  if (xbt_dynar_member(tests, &test)){
+  if (xbt_dynar_search_or_negative(tests, &test)!=-1){
     XBT_INFO("Test 3:");
     MSG_host_on(jupiter);
     argvF = xbt_new(char*, 2);
@@ -84,7 +84,7 @@ int test_launcher(int argc, char *argv[])
   }
 
   test = 4;
-  if (xbt_dynar_member(tests, &test)){
+  if (xbt_dynar_search_or_negative(tests, &test)!=-1){
     XBT_INFO("Test 4 (turn off src during a communication) : Create a Process/task to make a communication between Jupiter and Tremblay and turn off Jupiter during the communication");
     MSG_host_on(jupiter);
     MSG_process_sleep(10);
@@ -102,7 +102,7 @@ int test_launcher(int argc, char *argv[])
   }
 
   test = 5;
-  if (xbt_dynar_member(tests, &test)){
+  if (xbt_dynar_search_or_negative(tests, &test)!=-1){
     XBT_INFO("Test 5 (turn off dest during a communication : Create a Process/task to make a communication between Tremblay and Jupiter and turn off Jupiter during the communication");
     MSG_host_on(jupiter);
     MSG_process_sleep(10);
@@ -120,7 +120,7 @@ int test_launcher(int argc, char *argv[])
   }
 
   test =6;
-  if (xbt_dynar_member(tests, &test)){
+  if (xbt_dynar_search_or_negative(tests, &test)!=-1){
     XBT_INFO("Test 6: Turn on Jupiter, assign a VM on Jupiter, launch a process inside the VM, and turn off the node");
 
     // Create VM0
@@ -155,17 +155,17 @@ int test_launcher(int argc, char *argv[])
   }
 
   test = 7;
-  if (xbt_dynar_member(tests, &test)){
+  if (xbt_dynar_search_or_negative(tests, &test)!=-1){
 
   }
 
   test = 8;
-  if (xbt_dynar_member(tests, &test)){
+  if (xbt_dynar_search_or_negative(tests, &test)!=-1){
 
   }
 
   test = 9;
-  if (xbt_dynar_member(tests, &test)){
+  if (xbt_dynar_search_or_negative(tests, &test)!=-1){
 
   }
   XBT_INFO("  Test done. See you!");
-- 
2.20.1