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| author | David Lamparter <equinox@opensourcerouting.org> | 2017-02-07 16:23:38 +0100 |
|---|---|---|
| committer | David Lamparter <equinox@opensourcerouting.org> | 2017-02-07 16:23:38 +0100 |
| commit | f65e2d40cc394b716d53ba80c846237c84a68cf0 (patch) | |
| tree | e41005118546063140360bc8aa92d4c30423fc84 | |
| parent | Merge pull request #171 from donaldsharp/double_free (diff) | |
| download | frr-f65e2d40cc394b716d53ba80c846237c84a68cf0.tar.xz frr-f65e2d40cc394b716d53ba80c846237c84a68cf0.zip | |
lib: print backtrace on MTYPE count underflow
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
| -rw-r--r-- | lib/memory.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/memory.c b/lib/memory.c index f17915486..5fc008810 100644 --- a/lib/memory.c +++ b/lib/memory.c @@ -19,6 +19,7 @@ #include <stdlib.h> #include "memory.h" +#include "log.h" static struct memgroup *mg_first = NULL; struct memgroup **mg_insert = &mg_first; @@ -40,6 +41,11 @@ mt_count_alloc (struct memtype *mt, size_t size) static inline void mt_count_free (struct memtype *mt) { + if (mt->n_alloc == 0) + { + zlog_err ("memory allocation count underflow for \"%s\"", mt->name); + zlog_backtrace (LOG_ERR); + } mt->n_alloc--; } |