[mpich-commits] [mpich] MPICH primary repository branch, master, updated. v3.2a2-113-g7d59d14

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http://git.mpich.org/mpich.git/commitdiff/7d59d14dd74072037b0daaa67612836974c0ff2b

commit 7d59d14dd74072037b0daaa67612836974c0ff2b
Author: Su Huang <suhuang at us.ibm.com>
Date:   Fri Jan 16 14:55:16 2015 -0500

     PAMID:MP_STATISTICS=print will cause mpi hw case coredump
    
     The segfault was caused by the library trying to free an already freed mpid_statp
     structure. The structure is freed right after the status information is printed.
     To fix the problem, the mpid_statp is set to NULL after the free is done.
    
     (ibm) D202018
    
    Signed-off-by: Sameh Sharkawi <sssharka at us.ibm.com>

diff --git a/src/mpid/pamid/src/mpidi_util.c b/src/mpid/pamid/src/mpidi_util.c
index 8217ade..774e786 100644
--- a/src/mpid/pamid/src/mpidi_util.c
+++ b/src/mpid/pamid/src/mpidi_util.c
@@ -800,10 +800,16 @@ void MPIDI_print_statistics() {
        (MPIDI_Process.mp_printenv)) {
        if (MPIDI_Process.mp_statistics) {
            MPIDI_Statistics_write(stdout);
-           if (mpid_statp) MPIU_Free(mpid_statp);
+           if (mpid_statp) {
+               MPIU_Free(mpid_statp);
+               mpid_statp=NULL;
+           }
        }
     if (MPIDI_Process.mp_printenv) {
-        if (mpich_env)  MPIU_Free(mpich_env);
+        if (mpich_env) {
+            MPIU_Free(mpich_env);
+            mpich_env=NULL;
+        }
     }
   }
 }

-----------------------------------------------------------------------

Summary of changes:
 src/mpid/pamid/src/mpidi_util.c |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)


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