Skip site navigation (1)Skip section navigation (2)
Date:      Mon, 21 Oct 2013 05:10:46 +0000 (UTC)
From:      Jason Evans <jasone@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   svn commit: r256823 - in head/contrib/jemalloc: . doc include/jemalloc include/jemalloc/internal src
Message-ID:  <201310210510.r9L5Ak40035450@svn.freebsd.org>

next in thread | raw e-mail | index | archive | help
Author: jasone
Date: Mon Oct 21 05:10:46 2013
New Revision: 256823
URL: http://svnweb.freebsd.org/changeset/base/256823

Log:
  Update jemalloc to version 3.4.1.

Modified:
  head/contrib/jemalloc/ChangeLog
  head/contrib/jemalloc/FREEBSD-diffs
  head/contrib/jemalloc/FREEBSD-upgrade
  head/contrib/jemalloc/VERSION
  head/contrib/jemalloc/doc/jemalloc.3
  head/contrib/jemalloc/include/jemalloc/internal/arena.h
  head/contrib/jemalloc/include/jemalloc/internal/jemalloc_internal.h
  head/contrib/jemalloc/include/jemalloc/internal/private_namespace.h
  head/contrib/jemalloc/include/jemalloc/internal/tcache.h
  head/contrib/jemalloc/include/jemalloc/jemalloc.h
  head/contrib/jemalloc/src/arena.c
  head/contrib/jemalloc/src/chunk.c
  head/contrib/jemalloc/src/ctl.c
  head/contrib/jemalloc/src/jemalloc.c

Modified: head/contrib/jemalloc/ChangeLog
==============================================================================
--- head/contrib/jemalloc/ChangeLog	Mon Oct 21 04:15:55 2013	(r256822)
+++ head/contrib/jemalloc/ChangeLog	Mon Oct 21 05:10:46 2013	(r256823)
@@ -6,6 +6,21 @@ found in the git revision history:
     http://www.canonware.com/cgi-bin/gitweb.cgi?p=jemalloc.git
     git://canonware.com/jemalloc.git
 
+* 3.4.1 (October 20, 2013)
+
+  Bug fixes:
+  - Fix a race in the "arenas.extend" mallctl that could cause memory corruption
+    of internal data structures and subsequent crashes.
+  - Fix Valgrind integration flaws that caused Valgrind warnings about reads of
+    uninitialized memory in:
+    + arena chunk headers
+    + internal zero-initialized data structures (relevant to tcache and prof
+      code)
+  - Preserve errno during the first allocation.  A readlink(2) call during
+    initialization fails unless /etc/malloc.conf exists, so errno was typically
+    set during the first allocation prior to this fix.
+  - Fix compilation warnings reported by gcc 4.8.1.
+
 * 3.4.0 (June 2, 2013)
 
   This version is essentially a small bugfix release, but the addition of
@@ -60,7 +75,7 @@ found in the git revision history:
 
   Bug fixes:
   - Fix "arenas.extend" mallctl to output the number of arenas.
-  - Fix chunk_recycyle() to unconditionally inform Valgrind that returned memory
+  - Fix chunk_recycle() to unconditionally inform Valgrind that returned memory
     is undefined.
   - Fix build break on FreeBSD related to alloca.h.
 

Modified: head/contrib/jemalloc/FREEBSD-diffs
==============================================================================
--- head/contrib/jemalloc/FREEBSD-diffs	Mon Oct 21 04:15:55 2013	(r256822)
+++ head/contrib/jemalloc/FREEBSD-diffs	Mon Oct 21 05:10:46 2013	(r256823)
@@ -45,7 +45,7 @@ index abd5e6f..1d7491a 100644
 +  </refsect1>
  </refentry>
 diff --git a/include/jemalloc/internal/jemalloc_internal.h.in b/include/jemalloc/internal/jemalloc_internal.h.in
-index e46ac54..527449d 100644
+index 53c135c..c547339 100644
 --- a/include/jemalloc/internal/jemalloc_internal.h.in
 +++ b/include/jemalloc/internal/jemalloc_internal.h.in
 @@ -1,5 +1,8 @@
@@ -97,10 +97,10 @@ index de44e14..564d604 100644
  
  bool	malloc_mutex_init(malloc_mutex_t *mutex);
 diff --git a/include/jemalloc/internal/private_namespace.h b/include/jemalloc/internal/private_namespace.h
-index 65de316..366676b 100644
+index cdb0b0e..2a98d1f 100644
 --- a/include/jemalloc/internal/private_namespace.h
 +++ b/include/jemalloc/internal/private_namespace.h
-@@ -216,7 +216,6 @@
+@@ -218,7 +218,6 @@
  #define	iralloc JEMALLOC_N(iralloc)
  #define	irallocx JEMALLOC_N(irallocx)
  #define	isalloc JEMALLOC_N(isalloc)
@@ -244,7 +244,7 @@ index 0000000..e6c8407
 +#endif
 +
 diff --git a/src/jemalloc.c b/src/jemalloc.c
-index bc350ed..352c98e 100644
+index ae56db6..1412a5e 100644
 --- a/src/jemalloc.c
 +++ b/src/jemalloc.c
 @@ -8,6 +8,10 @@ malloc_tsd_data(, arenas, arena_t *, NULL)

Modified: head/contrib/jemalloc/FREEBSD-upgrade
==============================================================================
--- head/contrib/jemalloc/FREEBSD-upgrade	Mon Oct 21 04:15:55 2013	(r256822)
+++ head/contrib/jemalloc/FREEBSD-upgrade	Mon Oct 21 05:10:46 2013	(r256823)
@@ -60,7 +60,7 @@ do_extract() {
   local rev=$1
   # Clone.
   rm -rf ${work}
-  git clone git://canonware.com/jemalloc.git ${work}
+  git clone https://github.com/jemalloc/jemalloc.git ${work}
   (
     cd ${work}
     if [ "x${rev}" != "x" ] ; then

Modified: head/contrib/jemalloc/VERSION
==============================================================================
--- head/contrib/jemalloc/VERSION	Mon Oct 21 04:15:55 2013	(r256822)
+++ head/contrib/jemalloc/VERSION	Mon Oct 21 05:10:46 2013	(r256823)
@@ -1 +1 @@
-3.4.0-0-g0ed518e5dab789ad2171bb38977a8927e2a26775
+3.4.1-0-g0135fb806e4137dc9cdf152541926a2bc95e33f0

Modified: head/contrib/jemalloc/doc/jemalloc.3
==============================================================================
--- head/contrib/jemalloc/doc/jemalloc.3	Mon Oct 21 04:15:55 2013	(r256822)
+++ head/contrib/jemalloc/doc/jemalloc.3	Mon Oct 21 05:10:46 2013	(r256823)
@@ -2,12 +2,12 @@
 .\"     Title: JEMALLOC
 .\"    Author: Jason Evans
 .\" Generator: DocBook XSL Stylesheets v1.76.1 <http://docbook.sf.net/>;
-.\"      Date: 06/02/2013
+.\"      Date: 10/20/2013
 .\"    Manual: User Manual
-.\"    Source: jemalloc 3.4.0-0-g0ed518e5dab789ad2171bb38977a8927e2a26775
+.\"    Source: jemalloc 3.4.1-0-g0135fb806e4137dc9cdf152541926a2bc95e33f0
 .\"  Language: English
 .\"
-.TH "JEMALLOC" "3" "06/02/2013" "jemalloc 3.4.0-0-g0ed518e5dab7" "User Manual"
+.TH "JEMALLOC" "3" "10/20/2013" "jemalloc 3.4.1-0-g0135fb806e41" "User Manual"
 .\" -----------------------------------------------------------------
 .\" * Define some portability stuff
 .\" -----------------------------------------------------------------
@@ -31,7 +31,7 @@
 jemalloc \- general purpose memory allocation functions
 .SH "LIBRARY"
 .PP
-This manual describes jemalloc 3\&.4\&.0\-0\-g0ed518e5dab789ad2171bb38977a8927e2a26775\&. More information can be found at the
+This manual describes jemalloc 3\&.4\&.1\-0\-g0135fb806e4137dc9cdf152541926a2bc95e33f0\&. More information can be found at the
 \m[blue]\fBjemalloc website\fR\m[]\&\s-2\u[1]\d\s+2\&.
 .PP
 The following configuration options are enabled in libc\*(Aqs built\-in jemalloc:

Modified: head/contrib/jemalloc/include/jemalloc/internal/arena.h
==============================================================================
--- head/contrib/jemalloc/include/jemalloc/internal/arena.h	Mon Oct 21 04:15:55 2013	(r256822)
+++ head/contrib/jemalloc/include/jemalloc/internal/arena.h	Mon Oct 21 05:10:46 2013	(r256823)
@@ -441,6 +441,7 @@ void	arena_postfork_child(arena_t *arena
 #ifndef JEMALLOC_ENABLE_INLINE
 arena_chunk_map_t	*arena_mapp_get(arena_chunk_t *chunk, size_t pageind);
 size_t	*arena_mapbitsp_get(arena_chunk_t *chunk, size_t pageind);
+size_t	arena_mapbitsp_read(size_t *mapbitsp);
 size_t	arena_mapbits_get(arena_chunk_t *chunk, size_t pageind);
 size_t	arena_mapbits_unallocated_size_get(arena_chunk_t *chunk,
     size_t pageind);
@@ -451,6 +452,7 @@ size_t	arena_mapbits_dirty_get(arena_chu
 size_t	arena_mapbits_unzeroed_get(arena_chunk_t *chunk, size_t pageind);
 size_t	arena_mapbits_large_get(arena_chunk_t *chunk, size_t pageind);
 size_t	arena_mapbits_allocated_get(arena_chunk_t *chunk, size_t pageind);
+void	arena_mapbitsp_write(size_t *mapbitsp, size_t mapbits);
 void	arena_mapbits_unallocated_set(arena_chunk_t *chunk, size_t pageind,
     size_t size, size_t flags);
 void	arena_mapbits_unallocated_size_set(arena_chunk_t *chunk, size_t pageind,
@@ -498,10 +500,17 @@ arena_mapbitsp_get(arena_chunk_t *chunk,
 }
 
 JEMALLOC_ALWAYS_INLINE size_t
+arena_mapbitsp_read(size_t *mapbitsp)
+{
+
+	return (*mapbitsp);
+}
+
+JEMALLOC_ALWAYS_INLINE size_t
 arena_mapbits_get(arena_chunk_t *chunk, size_t pageind)
 {
 
-	return (*arena_mapbitsp_get(chunk, pageind));
+	return (arena_mapbitsp_read(arena_mapbitsp_get(chunk, pageind)));
 }
 
 JEMALLOC_ALWAYS_INLINE size_t
@@ -585,82 +594,89 @@ arena_mapbits_allocated_get(arena_chunk_
 }
 
 JEMALLOC_ALWAYS_INLINE void
+arena_mapbitsp_write(size_t *mapbitsp, size_t mapbits)
+{
+
+	*mapbitsp = mapbits;
+}
+
+JEMALLOC_ALWAYS_INLINE void
 arena_mapbits_unallocated_set(arena_chunk_t *chunk, size_t pageind, size_t size,
     size_t flags)
 {
-	size_t *mapbitsp;
+	size_t *mapbitsp = arena_mapbitsp_get(chunk, pageind);
 
-	mapbitsp = arena_mapbitsp_get(chunk, pageind);
 	assert((size & PAGE_MASK) == 0);
 	assert((flags & ~CHUNK_MAP_FLAGS_MASK) == 0);
 	assert((flags & (CHUNK_MAP_DIRTY|CHUNK_MAP_UNZEROED)) == flags);
-	*mapbitsp = size | CHUNK_MAP_BININD_INVALID | flags;
+	arena_mapbitsp_write(mapbitsp, size | CHUNK_MAP_BININD_INVALID | flags);
 }
 
 JEMALLOC_ALWAYS_INLINE void
 arena_mapbits_unallocated_size_set(arena_chunk_t *chunk, size_t pageind,
     size_t size)
 {
-	size_t *mapbitsp;
+	size_t *mapbitsp = arena_mapbitsp_get(chunk, pageind);
+	size_t mapbits = arena_mapbitsp_read(mapbitsp);
 
-	mapbitsp = arena_mapbitsp_get(chunk, pageind);
 	assert((size & PAGE_MASK) == 0);
-	assert((*mapbitsp & (CHUNK_MAP_LARGE|CHUNK_MAP_ALLOCATED)) == 0);
-	*mapbitsp = size | (*mapbitsp & PAGE_MASK);
+	assert((mapbits & (CHUNK_MAP_LARGE|CHUNK_MAP_ALLOCATED)) == 0);
+	arena_mapbitsp_write(mapbitsp, size | (mapbits & PAGE_MASK));
 }
 
 JEMALLOC_ALWAYS_INLINE void
 arena_mapbits_large_set(arena_chunk_t *chunk, size_t pageind, size_t size,
     size_t flags)
 {
-	size_t *mapbitsp;
+	size_t *mapbitsp = arena_mapbitsp_get(chunk, pageind);
+	size_t mapbits = arena_mapbitsp_read(mapbitsp);
 	size_t unzeroed;
 
-	mapbitsp = arena_mapbitsp_get(chunk, pageind);
 	assert((size & PAGE_MASK) == 0);
 	assert((flags & CHUNK_MAP_DIRTY) == flags);
-	unzeroed = *mapbitsp & CHUNK_MAP_UNZEROED; /* Preserve unzeroed. */
-	*mapbitsp = size | CHUNK_MAP_BININD_INVALID | flags | unzeroed |
-	    CHUNK_MAP_LARGE | CHUNK_MAP_ALLOCATED;
+	unzeroed = mapbits & CHUNK_MAP_UNZEROED; /* Preserve unzeroed. */
+	arena_mapbitsp_write(mapbitsp, size | CHUNK_MAP_BININD_INVALID | flags
+	    | unzeroed | CHUNK_MAP_LARGE | CHUNK_MAP_ALLOCATED);
 }
 
 JEMALLOC_ALWAYS_INLINE void
 arena_mapbits_large_binind_set(arena_chunk_t *chunk, size_t pageind,
     size_t binind)
 {
-	size_t *mapbitsp;
+	size_t *mapbitsp = arena_mapbitsp_get(chunk, pageind);
+	size_t mapbits = arena_mapbitsp_read(mapbitsp);
 
 	assert(binind <= BININD_INVALID);
-	mapbitsp = arena_mapbitsp_get(chunk, pageind);
 	assert(arena_mapbits_large_size_get(chunk, pageind) == PAGE);
-	*mapbitsp = (*mapbitsp & ~CHUNK_MAP_BININD_MASK) | (binind <<
-	    CHUNK_MAP_BININD_SHIFT);
+	arena_mapbitsp_write(mapbitsp, (mapbits & ~CHUNK_MAP_BININD_MASK) |
+	    (binind << CHUNK_MAP_BININD_SHIFT));
 }
 
 JEMALLOC_ALWAYS_INLINE void
 arena_mapbits_small_set(arena_chunk_t *chunk, size_t pageind, size_t runind,
     size_t binind, size_t flags)
 {
-	size_t *mapbitsp;
+	size_t *mapbitsp = arena_mapbitsp_get(chunk, pageind);
+	size_t mapbits = arena_mapbitsp_read(mapbitsp);
 	size_t unzeroed;
 
 	assert(binind < BININD_INVALID);
-	mapbitsp = arena_mapbitsp_get(chunk, pageind);
 	assert(pageind - runind >= map_bias);
 	assert((flags & CHUNK_MAP_DIRTY) == flags);
-	unzeroed = *mapbitsp & CHUNK_MAP_UNZEROED; /* Preserve unzeroed. */
-	*mapbitsp = (runind << LG_PAGE) | (binind << CHUNK_MAP_BININD_SHIFT) |
-	    flags | unzeroed | CHUNK_MAP_ALLOCATED;
+	unzeroed = mapbits & CHUNK_MAP_UNZEROED; /* Preserve unzeroed. */
+	arena_mapbitsp_write(mapbitsp, (runind << LG_PAGE) | (binind <<
+	    CHUNK_MAP_BININD_SHIFT) | flags | unzeroed | CHUNK_MAP_ALLOCATED);
 }
 
 JEMALLOC_ALWAYS_INLINE void
 arena_mapbits_unzeroed_set(arena_chunk_t *chunk, size_t pageind,
     size_t unzeroed)
 {
-	size_t *mapbitsp;
+	size_t *mapbitsp = arena_mapbitsp_get(chunk, pageind);
+	size_t mapbits = arena_mapbitsp_read(mapbitsp);
 
-	mapbitsp = arena_mapbitsp_get(chunk, pageind);
-	*mapbitsp = (*mapbitsp & ~CHUNK_MAP_UNZEROED) | unzeroed;
+	arena_mapbitsp_write(mapbitsp, (mapbits & ~CHUNK_MAP_UNZEROED) |
+	    unzeroed);
 }
 
 JEMALLOC_INLINE bool

Modified: head/contrib/jemalloc/include/jemalloc/internal/jemalloc_internal.h
==============================================================================
--- head/contrib/jemalloc/include/jemalloc/internal/jemalloc_internal.h	Mon Oct 21 04:15:55 2013	(r256822)
+++ head/contrib/jemalloc/include/jemalloc/internal/jemalloc_internal.h	Mon Oct 21 05:10:46 2013	(r256823)
@@ -232,9 +232,18 @@ static const bool config_ivsalloc =
 #  define	__DECONST(type, var)	((type)(uintptr_t)(const void *)(var))
 #endif
 
+/*
+ * JEMALLOC_ALWAYS_INLINE is used within header files for functions that are
+ * static inline functions if inlining is enabled, and single-definition
+ * library-private functions if inlining is disabled.
+ *
+ * JEMALLOC_ALWAYS_INLINE_C is for use in .c files, in which case the denoted
+ * functions are always static, regardless of whether inlining is enabled.
+ */
 #ifdef JEMALLOC_DEBUG
    /* Disable inlining to make debugging easier. */
 #  define JEMALLOC_ALWAYS_INLINE
+#  define JEMALLOC_ALWAYS_INLINE_C static
 #  define JEMALLOC_INLINE
 #  define inline
 #else
@@ -242,8 +251,11 @@ static const bool config_ivsalloc =
 #  ifdef JEMALLOC_HAVE_ATTR
 #    define JEMALLOC_ALWAYS_INLINE \
 	 static inline JEMALLOC_ATTR(unused) JEMALLOC_ATTR(always_inline)
+#    define JEMALLOC_ALWAYS_INLINE_C \
+	 static inline JEMALLOC_ATTR(always_inline)
 #  else
 #    define JEMALLOC_ALWAYS_INLINE static inline
+#    define JEMALLOC_ALWAYS_INLINE_C static inline
 #  endif
 #  define JEMALLOC_INLINE static inline
 #  ifdef _MSC_VER

Modified: head/contrib/jemalloc/include/jemalloc/internal/private_namespace.h
==============================================================================
--- head/contrib/jemalloc/include/jemalloc/internal/private_namespace.h	Mon Oct 21 04:15:55 2013	(r256822)
+++ head/contrib/jemalloc/include/jemalloc/internal/private_namespace.h	Mon Oct 21 05:10:46 2013	(r256823)
@@ -33,6 +33,8 @@
 #define	arena_mapbits_unzeroed_get JEMALLOC_N(arena_mapbits_unzeroed_get)
 #define	arena_mapbits_unzeroed_set JEMALLOC_N(arena_mapbits_unzeroed_set)
 #define	arena_mapbitsp_get JEMALLOC_N(arena_mapbitsp_get)
+#define	arena_mapbitsp_read JEMALLOC_N(arena_mapbitsp_read)
+#define	arena_mapbitsp_write JEMALLOC_N(arena_mapbitsp_write)
 #define	arena_mapp_get JEMALLOC_N(arena_mapp_get)
 #define	arena_maxclass JEMALLOC_N(arena_maxclass)
 #define	arena_new JEMALLOC_N(arena_new)

Modified: head/contrib/jemalloc/include/jemalloc/internal/tcache.h
==============================================================================
--- head/contrib/jemalloc/include/jemalloc/internal/tcache.h	Mon Oct 21 04:15:55 2013	(r256822)
+++ head/contrib/jemalloc/include/jemalloc/internal/tcache.h	Mon Oct 21 05:10:46 2013	(r256823)
@@ -313,6 +313,7 @@ tcache_alloc_small(tcache_t *tcache, siz
 			} else if (opt_zero)
 				memset(ret, 0, size);
 		}
+		VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
 	} else {
 		if (config_fill && opt_junk) {
 			arena_alloc_junk_small(ret, &arena_bin_info[binind],
@@ -321,7 +322,6 @@ tcache_alloc_small(tcache_t *tcache, siz
 		VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
 		memset(ret, 0, size);
 	}
-	VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
 
 	if (config_stats)
 		tbin->tstats.nrequests++;
@@ -368,11 +368,11 @@ tcache_alloc_large(tcache_t *tcache, siz
 				else if (opt_zero)
 					memset(ret, 0, size);
 			}
+			VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
 		} else {
 			VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
 			memset(ret, 0, size);
 		}
-		VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
 
 		if (config_stats)
 			tbin->tstats.nrequests++;

Modified: head/contrib/jemalloc/include/jemalloc/jemalloc.h
==============================================================================
--- head/contrib/jemalloc/include/jemalloc/jemalloc.h	Mon Oct 21 04:15:55 2013	(r256822)
+++ head/contrib/jemalloc/include/jemalloc/jemalloc.h	Mon Oct 21 05:10:46 2013	(r256823)
@@ -7,12 +7,12 @@ extern "C" {
 #include <limits.h>
 #include <strings.h>
 
-#define	JEMALLOC_VERSION "3.4.0-0-g0ed518e5dab789ad2171bb38977a8927e2a26775"
+#define	JEMALLOC_VERSION "3.4.1-0-g0135fb806e4137dc9cdf152541926a2bc95e33f0"
 #define	JEMALLOC_VERSION_MAJOR 3
 #define	JEMALLOC_VERSION_MINOR 4
-#define	JEMALLOC_VERSION_BUGFIX 0
+#define	JEMALLOC_VERSION_BUGFIX 1
 #define	JEMALLOC_VERSION_NREV 0
-#define	JEMALLOC_VERSION_GID "0ed518e5dab789ad2171bb38977a8927e2a26775"
+#define	JEMALLOC_VERSION_GID "0135fb806e4137dc9cdf152541926a2bc95e33f0"
 
 #include "jemalloc_defs.h"
 #include "jemalloc_FreeBSD.h"

Modified: head/contrib/jemalloc/src/arena.c
==============================================================================
--- head/contrib/jemalloc/src/arena.c	Mon Oct 21 04:15:55 2013	(r256822)
+++ head/contrib/jemalloc/src/arena.c	Mon Oct 21 05:10:46 2013	(r256823)
@@ -369,13 +369,20 @@ arena_run_zero(arena_chunk_t *chunk, siz
 }
 
 static inline void
+arena_run_page_mark_zeroed(arena_chunk_t *chunk, size_t run_ind)
+{
+
+	VALGRIND_MAKE_MEM_DEFINED((void *)((uintptr_t)chunk + (run_ind <<
+	    LG_PAGE)), PAGE);
+}
+
+static inline void
 arena_run_page_validate_zeroed(arena_chunk_t *chunk, size_t run_ind)
 {
 	size_t i;
 	UNUSED size_t *p = (size_t *)((uintptr_t)chunk + (run_ind << LG_PAGE));
 
-	VALGRIND_MAKE_MEM_DEFINED((void *)((uintptr_t)chunk + (run_ind <<
-	    LG_PAGE)), PAGE);
+	arena_run_page_mark_zeroed(chunk, run_ind);
 	for (i = 0; i < PAGE / sizeof(size_t); i++)
 		assert(p[i] == 0);
 }
@@ -458,6 +465,9 @@ arena_run_split(arena_t *arena, arena_ru
 					} else if (config_debug) {
 						arena_run_page_validate_zeroed(
 						    chunk, run_ind+i);
+					} else {
+						arena_run_page_mark_zeroed(
+						    chunk, run_ind+i);
 					}
 				}
 			} else {
@@ -467,6 +477,9 @@ arena_run_split(arena_t *arena, arena_ru
 				 */
 				arena_run_zero(chunk, run_ind, need_pages);
 			}
+		} else {
+			VALGRIND_MAKE_MEM_UNDEFINED((void *)((uintptr_t)chunk +
+			    (run_ind << LG_PAGE)), (need_pages << LG_PAGE));
 		}
 
 		/*
@@ -508,9 +521,9 @@ arena_run_split(arena_t *arena, arena_ru
 			arena_run_page_validate_zeroed(chunk,
 			    run_ind+need_pages-1);
 		}
+		VALGRIND_MAKE_MEM_UNDEFINED((void *)((uintptr_t)chunk +
+		    (run_ind << LG_PAGE)), (need_pages << LG_PAGE));
 	}
-	VALGRIND_MAKE_MEM_UNDEFINED((void *)((uintptr_t)chunk + (run_ind <<
-	    LG_PAGE)), (need_pages << LG_PAGE));
 }
 
 static arena_chunk_t *
@@ -569,17 +582,24 @@ arena_chunk_alloc(arena_t *arena)
 		 * unless the chunk is not zeroed.
 		 */
 		if (zero == false) {
+			VALGRIND_MAKE_MEM_UNDEFINED(
+			    (void *)arena_mapp_get(chunk, map_bias+1),
+			    (size_t)((uintptr_t) arena_mapp_get(chunk,
+			    chunk_npages-1) - (uintptr_t)arena_mapp_get(chunk,
+			    map_bias+1)));
 			for (i = map_bias+1; i < chunk_npages-1; i++)
 				arena_mapbits_unzeroed_set(chunk, i, unzeroed);
-		} else if (config_debug) {
+		} else {
 			VALGRIND_MAKE_MEM_DEFINED(
 			    (void *)arena_mapp_get(chunk, map_bias+1),
-			    (void *)((uintptr_t)
-			    arena_mapp_get(chunk, chunk_npages-1)
-			    - (uintptr_t)arena_mapp_get(chunk, map_bias+1)));
-			for (i = map_bias+1; i < chunk_npages-1; i++) {
-				assert(arena_mapbits_unzeroed_get(chunk, i) ==
-				    unzeroed);
+			    (size_t)((uintptr_t) arena_mapp_get(chunk,
+			    chunk_npages-1) - (uintptr_t)arena_mapp_get(chunk,
+			    map_bias+1)));
+			if (config_debug) {
+				for (i = map_bias+1; i < chunk_npages-1; i++) {
+					assert(arena_mapbits_unzeroed_get(chunk,
+					    i) == unzeroed);
+				}
 			}
 		}
 		arena_mapbits_unallocated_set(chunk, chunk_npages-1,
@@ -1458,6 +1478,7 @@ arena_malloc_small(arena_t *arena, size_
 			} else if (opt_zero)
 				memset(ret, 0, size);
 		}
+		VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
 	} else {
 		if (config_fill && opt_junk) {
 			arena_alloc_junk_small(ret, &arena_bin_info[binind],
@@ -1466,7 +1487,6 @@ arena_malloc_small(arena_t *arena, size_
 		VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
 		memset(ret, 0, size);
 	}
-	VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
 
 	return (ret);
 }

Modified: head/contrib/jemalloc/src/chunk.c
==============================================================================
--- head/contrib/jemalloc/src/chunk.c	Mon Oct 21 04:15:55 2013	(r256822)
+++ head/contrib/jemalloc/src/chunk.c	Mon Oct 21 05:10:46 2013	(r256823)
@@ -294,7 +294,7 @@ label_return:
 	if (xnode != NULL)
 		base_node_dealloc(xnode);
 	if (xprev != NULL)
-		base_node_dealloc(prev);
+		base_node_dealloc(xprev);
 }
 
 void

Modified: head/contrib/jemalloc/src/ctl.c
==============================================================================
--- head/contrib/jemalloc/src/ctl.c	Mon Oct 21 04:15:55 2013	(r256822)
+++ head/contrib/jemalloc/src/ctl.c	Mon Oct 21 05:10:46 2013	(r256823)
@@ -546,43 +546,30 @@ ctl_arena_refresh(arena_t *arena, unsign
 static bool
 ctl_grow(void)
 {
-	size_t astats_size;
 	ctl_arena_stats_t *astats;
 	arena_t **tarenas;
 
-	/* Extend arena stats and arenas arrays. */
-	astats_size = (ctl_stats.narenas + 2) * sizeof(ctl_arena_stats_t);
-	if (ctl_stats.narenas == narenas_auto) {
-		/* ctl_stats.arenas and arenas came from base_alloc(). */
-		astats = (ctl_arena_stats_t *)imalloc(astats_size);
-		if (astats == NULL)
-			return (true);
-		memcpy(astats, ctl_stats.arenas, (ctl_stats.narenas + 1) *
-		    sizeof(ctl_arena_stats_t));
-
-		tarenas = (arena_t **)imalloc((ctl_stats.narenas + 1) *
-		    sizeof(arena_t *));
-		if (tarenas == NULL) {
-			idalloc(astats);
-			return (true);
-		}
-		memcpy(tarenas, arenas, ctl_stats.narenas * sizeof(arena_t *));
-	} else {
-		astats = (ctl_arena_stats_t *)iralloc(ctl_stats.arenas,
-		    astats_size, 0, 0, false, false);
-		if (astats == NULL)
-			return (true);
-
-		tarenas = (arena_t **)iralloc(arenas, (ctl_stats.narenas + 1) *
-		    sizeof(arena_t *), 0, 0, false, false);
-		if (tarenas == NULL)
-			return (true);
+	/* Allocate extended arena stats and arenas arrays. */
+	astats = (ctl_arena_stats_t *)imalloc((ctl_stats.narenas + 2) *
+	    sizeof(ctl_arena_stats_t));
+	if (astats == NULL)
+		return (true);
+	tarenas = (arena_t **)imalloc((ctl_stats.narenas + 1) *
+	    sizeof(arena_t *));
+	if (tarenas == NULL) {
+		idalloc(astats);
+		return (true);
 	}
-	/* Initialize the new astats and arenas elements. */
+
+	/* Initialize the new astats element. */
+	memcpy(astats, ctl_stats.arenas, (ctl_stats.narenas + 1) *
+	    sizeof(ctl_arena_stats_t));
 	memset(&astats[ctl_stats.narenas + 1], 0, sizeof(ctl_arena_stats_t));
-	if (ctl_arena_init(&astats[ctl_stats.narenas + 1]))
+	if (ctl_arena_init(&astats[ctl_stats.narenas + 1])) {
+		idalloc(tarenas);
+		idalloc(astats);
 		return (true);
-	tarenas[ctl_stats.narenas] = NULL;
+	}
 	/* Swap merged stats to their new location. */
 	{
 		ctl_arena_stats_t tstats;
@@ -593,13 +580,34 @@ ctl_grow(void)
 		memcpy(&astats[ctl_stats.narenas + 1], &tstats,
 		    sizeof(ctl_arena_stats_t));
 	}
+	/* Initialize the new arenas element. */
+	tarenas[ctl_stats.narenas] = NULL;
+	{
+		arena_t **arenas_old = arenas;
+		/*
+		 * Swap extended arenas array into place.  Although ctl_mtx
+		 * protects this function from other threads extending the
+		 * array, it does not protect from other threads mutating it
+		 * (i.e. initializing arenas and setting array elements to
+		 * point to them).  Therefore, array copying must happen under
+		 * the protection of arenas_lock.
+		 */
+		malloc_mutex_lock(&arenas_lock);
+		arenas = tarenas;
+		memcpy(arenas, arenas_old, ctl_stats.narenas *
+		    sizeof(arena_t *));
+		narenas_total++;
+		arenas_extend(narenas_total - 1);
+		malloc_mutex_unlock(&arenas_lock);
+		/*
+		 * Deallocate arenas_old only if it came from imalloc() (not
+		 * base_alloc()).
+		 */
+		if (ctl_stats.narenas != narenas_auto)
+			idalloc(arenas_old);
+	}
 	ctl_stats.arenas = astats;
 	ctl_stats.narenas++;
-	malloc_mutex_lock(&arenas_lock);
-	arenas = tarenas;
-	narenas_total++;
-	arenas_extend(narenas_total - 1);
-	malloc_mutex_unlock(&arenas_lock);
 
 	return (false);
 }
@@ -1109,7 +1117,7 @@ epoch_ctl(const size_t *mib, size_t mibl
     void *newp, size_t newlen)
 {
 	int ret;
-	uint64_t newval;
+	UNUSED uint64_t newval;
 
 	malloc_mutex_lock(&ctl_mtx);
 	WRITE(newval, uint64_t);

Modified: head/contrib/jemalloc/src/jemalloc.c
==============================================================================
--- head/contrib/jemalloc/src/jemalloc.c	Mon Oct 21 04:15:55 2013	(r256822)
+++ head/contrib/jemalloc/src/jemalloc.c	Mon Oct 21 05:10:46 2013	(r256823)
@@ -286,7 +286,7 @@ arenas_cleanup(void *arg)
 	malloc_mutex_unlock(&arenas_lock);
 }
 
-static JEMALLOC_ATTR(always_inline) void
+JEMALLOC_ALWAYS_INLINE_C void
 malloc_thread_init(void)
 {
 
@@ -303,7 +303,7 @@ malloc_thread_init(void)
 		quarantine_alloc_hook();
 }
 
-static JEMALLOC_ATTR(always_inline) bool
+JEMALLOC_ALWAYS_INLINE_C bool
 malloc_init(void)
 {
 
@@ -440,8 +440,9 @@ malloc_conf_init(void)
 			}
 			break;
 		case 1: {
+			int linklen = 0;
 #ifndef _WIN32
-			int linklen;
+			int saved_errno = errno;
 			const char *linkname =
 #  ifdef JEMALLOC_PREFIX
 			    "/etc/"JEMALLOC_PREFIX"malloc.conf"
@@ -450,21 +451,20 @@ malloc_conf_init(void)
 #  endif
 			    ;
 
-			if ((linklen = readlink(linkname, buf,
-			    sizeof(buf) - 1)) != -1) {
-				/*
-				 * Use the contents of the "/etc/malloc.conf"
-				 * symbolic link's name.
-				 */
-				buf[linklen] = '\0';
-				opts = buf;
-			} else
-#endif
-			{
+			/*
+			 * Try to use the contents of the "/etc/malloc.conf"
+			 * symbolic link's name.
+			 */
+			linklen = readlink(linkname, buf, sizeof(buf) - 1);
+			if (linklen == -1) {
 				/* No configuration specified. */
-				buf[0] = '\0';
-				opts = buf;
+				linklen = 0;
+				/* restore errno */
+				set_errno(saved_errno);
 			}
+#endif
+			buf[linklen] = '\0';
+			opts = buf;
 			break;
 		} case 2: {
 			const char *envname =
@@ -1407,7 +1407,7 @@ je_mallctlbymib(const size_t *mib, size_
  */
 #ifdef JEMALLOC_EXPERIMENTAL
 
-static JEMALLOC_ATTR(always_inline) void *
+JEMALLOC_ALWAYS_INLINE_C void *
 iallocm(size_t usize, size_t alignment, bool zero, bool try_tcache,
     arena_t *arena)
 {



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201310210510.r9L5Ak40035450>