#if CLIB_DEBUG > 0
#define FOOTERS 1 /* extra debugging */
+#define DLM_MAGIC_CONSTANT 0xdeaddabe
#endif
#define USE_LOCKS 1
#define DLM_ABORT {extern void os_panic(void); os_panic(); abort();}
#endif /* DEFAULT_TRIM_THRESHOLD */
#ifndef DEFAULT_MMAP_THRESHOLD
#if HAVE_MMAP
-#define DEFAULT_MMAP_THRESHOLD ((size_t)256U * (size_t)1024U)
+/*
+ * The default value in the dlmalloc was set as follows:
+ *
+ * #define DEFAULT_MMAP_THRESHOLD ((size_t)256U * (size_t)1024U)
+ *
+ * Above this threshold the sys_alloc() calls mmap_alloc() to directly mmap the memory.
+ * However, the interaction of this path with the rest of the vpp infra results
+ * in vpp infra considering directly mmap-allocated pieces to not
+ * be part of the heap, with predictable consequence.
+ *
+ * A simple unit-test to show that behavior is to make a small private
+ * heap and repeatedly perform vec_add1() within that heap.
+ *
+ * The issue is because there is no tracking which mmap-allocated chunk
+ * belongs to which heap.
+ *
+ * The temporary approach is to dial up the threshold so that the problematic
+ * code path never gets called. The full fix needs to introduce
+ * introduce the vector of mmap-allocated chunks to mspace, and in general
+ * do some more thorough testing.
+ */
+#define DEFAULT_MMAP_THRESHOLD ((size_t)~0ULL)
#else /* HAVE_MMAP */
#define DEFAULT_MMAP_THRESHOLD MAX_SIZE_T
#endif /* HAVE_MMAP */
/* #define HAVE_USR_INCLUDE_MALLOC_H */
-#ifdef HAVE_USR_INCLUDE_MALLOC_H
+#if 0 // def HAVE_USR_INCLUDE_MALLOC_H
#include "/usr/include/malloc.h"
#else /* HAVE_USR_INCLUDE_MALLOC_H */
#ifndef STRUCT_MALLINFO_DECLARED
/* HP-UX (and others?) redefines mallinfo unless _STRUCT_MALLINFO is defined */
#define _STRUCT_MALLINFO
#define STRUCT_MALLINFO_DECLARED 1
-struct mallinfo {
+struct dlmallinfo {
MALLINFO_FIELD_TYPE arena; /* non-mmapped space allocated from system */
MALLINFO_FIELD_TYPE ordblks; /* number of free chunks */
MALLINFO_FIELD_TYPE smblks; /* always 0 */
#define dlrealloc_in_place realloc_in_place
#define dlvalloc valloc
#define dlpvalloc pvalloc
-#define dlmallinfo mallinfo
+// #define dlmallinfo mallinfo
#define dlmallopt mallopt
#define dlmalloc_trim malloc_trim
#define dlmalloc_stats malloc_stats
be kept as longs, the reported values may wrap around zero and
thus be inaccurate.
*/
-DLMALLOC_EXPORT struct mallinfo dlmallinfo(void);
+DLMALLOC_EXPORT struct dlmallinfo dlmallinfo(void);
#endif /* NO_MALLINFO */
/*
mspace_mallinfo behaves as mallinfo, but reports properties of
the given space.
*/
-DLMALLOC_EXPORT struct mallinfo mspace_mallinfo(mspace msp);
+DLMALLOC_EXPORT struct dlmallinfo mspace_mallinfo(mspace msp);
#endif /* NO_MALLINFO */
/*