X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Ftests%2Fmultiop.c;h=e906af67d9520f8a43fa83568ee245c8091fc513;hp=1152dc0df4c0bdff434d9eec15115e251e990283;hb=8faf82a6b002ecab7eaf4c6a0ccfaa72ecdd0154;hpb=b23da8fcae05b8c8a0ba679fed1ebe718d93ebb7;ds=inline

diff --git a/lustre/tests/multiop.c b/lustre/tests/multiop.c
index 1152dc0..e906af6 100755
--- a/lustre/tests/multiop.c
+++ b/lustre/tests/multiop.c
@@ -187,6 +187,7 @@ int main(int argc, char **argv)
                 exit(1);
         }
 
+        memset(&st, 0, sizeof(st));
         signal(SIGUSR1, usr1_handler);
 
         fname = argv[1];
@@ -265,6 +266,11 @@ int main(int argc, char **argv)
                         }
                         break;
                 case 'M':
+                        if (st.st_size == 0) {
+                                fprintf(stderr, "mmap without preceeding stat, or on"
+                                        " zero length file.\n");
+                                exit(-1);
+                        }
                         mmap_len = st.st_size;
                         mmap_ptr = mmap(NULL, mmap_len, PROT_WRITE | PROT_READ,
                                         MAP_SHARED, fd, 0);