talloc: demonstrate memory leak in test_talloc_free_in_destructor()

The problem is that level3 disappears, it's not reachable from
the null_context anymore. level3 and level5 get into a parent child loop.

I think the correct fix should be that level0 becomes the parent
of level3 after talloc_free(level1).

metze

diff --git a/lib/talloc/testsuite.c b/lib/talloc/testsuite.c
index 35309e2af253a035e2653c74a6e50c838dddb686..12298a78ecc98efaf227b6ae381373ac61197ecc 100644 (file)
--- a/lib/talloc/testsuite.c
+++ b/lib/talloc/testsuite.c
@@ -1229,6 +1229,7 @@ static bool test_talloc_ptrtype(void)
 
 static int _test_talloc_free_in_destructor(void **ptr)
 {
+       printf("_test_talloc_free_in_destructor\n");
        talloc_free(*ptr);
        return 0;
 }
@@ -1258,10 +1259,17 @@ static bool test_talloc_free_in_destructor(void)
 
        talloc_set_destructor(level5, _test_talloc_free_in_destructor);
 
+       talloc_report_full(NULL, stderr);
+       printf("free level1\n");
        talloc_free(level1);
 
+       talloc_report_full(NULL, stderr);
+       talloc_report_full(level3, stderr);
+       printf("free level0\n");
        talloc_free(level0);
 
+       talloc_report_full(NULL, stderr);
+
        printf("success: free_in_destructor\n");
        return true;
 }