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-rw-r--r--erts/configure.in4
-rw-r--r--erts/doc/src/erl.xml2
-rw-r--r--erts/doc/src/erlang.xml22
-rw-r--r--erts/doc/src/notes.xml24
-rw-r--r--erts/emulator/beam/erl_alloc.c21
-rw-r--r--erts/emulator/beam/erl_alloc.h10
-rw-r--r--erts/emulator/beam/erl_alloc_util.c105
-rw-r--r--erts/emulator/beam/erl_alloc_util.h43
-rw-r--r--erts/emulator/beam/erl_bif_binary.c3
-rwxr-xr-xerts/emulator/beam/erl_bif_info.c3
-rw-r--r--erts/emulator/beam/erl_db.c7
-rw-r--r--erts/emulator/beam/erl_db.h2
-rw-r--r--erts/emulator/beam/sys.h3
-rw-r--r--erts/emulator/sys/common/erl_mseg.h6
-rw-r--r--erts/emulator/sys/unix/erl_unix_sys.h4
-rw-r--r--erts/emulator/sys/unix/sys.c46
-rw-r--r--erts/emulator/sys/win32/erl_win_sys.h3
-rwxr-xr-xerts/emulator/sys/win32/sys.c26
-rw-r--r--erts/emulator/test/system_info_SUITE.erl54
-rw-r--r--erts/epmd/src/epmd.c6
-rw-r--r--erts/epmd/src/epmd_int.h4
-rw-r--r--erts/etc/unix/run_erl.c9
-rw-r--r--erts/preloaded/ebin/erlang.beambin94152 -> 94156 bytes
-rw-r--r--erts/preloaded/src/erlang.erl3
-rw-r--r--erts/vsn.mk4
25 files changed, 310 insertions, 104 deletions
diff --git a/erts/configure.in b/erts/configure.in
index 00c7045ea2..f17f4cb5c8 100644
--- a/erts/configure.in
+++ b/erts/configure.in
@@ -1974,8 +1974,8 @@ AC_CHECK_FUNCS([getipnodebyname getipnodebyaddr gethostbyname2])
AC_CHECK_FUNCS([ieee_handler fpsetmask finite isnan isinf res_gethostbyname dlopen \
pread pwrite memmove strerror strerror_r strncasecmp \
- gethrtime localtime_r gmtime_r inet_pton mmap mremap memcpy mallopt \
- sbrk _sbrk __sbrk brk _brk __brk \
+ gethrtime localtime_r gmtime_r inet_pton posix_memalign \
+ mmap mremap memcpy mallopt sbrk _sbrk __sbrk brk _brk __brk \
flockfile fstat strlcpy strlcat setsid posix2time time2posix \
setlocale nl_langinfo poll])
diff --git a/erts/doc/src/erl.xml b/erts/doc/src/erl.xml
index c16b45856d..528a2d95aa 100644
--- a/erts/doc/src/erl.xml
+++ b/erts/doc/src/erl.xml
@@ -524,7 +524,7 @@
<p>Calling <c>erlang:halt/1</c> with a string argument will still
produce a crash dump.</p>
</item>
- <tag><c><![CDATA[+e Number]]></c></tag>
+ <tag><marker id="+e"><c><![CDATA[+e Number]]></c></marker></tag>
<item>
<p>Set max number of ETS tables.</p>
</item>
diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml
index 5ee40823bc..d3b21de8cf 100644
--- a/erts/doc/src/erlang.xml
+++ b/erts/doc/src/erlang.xml
@@ -5500,6 +5500,9 @@ ok
<name name="system_info" arity="1" clause_i="49"/>
<name name="system_info" arity="1" clause_i="50"/>
<name name="system_info" arity="1" clause_i="51"/>
+ <name name="system_info" arity="1" clause_i="52"/>
+ <name name="system_info" arity="1" clause_i="53"/>
+ <name name="system_info" arity="1" clause_i="54"/>
<fsummary>Information about the system</fsummary>
<desc>
<p>Returns various information about the current system
@@ -5576,6 +5579,13 @@ ok
information see the <seealso marker="erts:crash_dump">"How to interpret the Erlang crash dumps"</seealso>
chapter in the ERTS User's Guide.</p>
</item>
+ <tag><marker id="system_info_dist_buf_busy_limit"><c>dist_buf_busy_limit</c></marker></tag>
+ <item>
+ <p>Returns the value of the distribution buffer busy limit
+ in bytes. This limit can be set on startup by passing the
+ <seealso marker="erts:erl#+zdbbl">+zdbbl</seealso> command line
+ flag to <c>erl</c>.</p>
+ </item>
<tag><c>dist_ctrl</c></tag>
<item>
<p>Returns a list of tuples
@@ -5622,12 +5632,14 @@ ok
The return value will always be <c>false</c> since
the elib_malloc allocator has been removed.</p>
</item>
- <tag><marker id="system_info_dist_buf_busy_limit"><c>dist_buf_busy_limit</c></marker></tag>
+ <tag><c>ets_limit</c></tag>
<item>
- <p>Returns the value of the distribution buffer busy limit
- in bytes. This limit can be set on startup by passing the
- <seealso marker="erts:erl#+zdbbl">+zdbbl</seealso> command line
- flag to <c>erl</c>.</p>
+ <p>Returns the maximum number of ETS tables allowed. This limit
+ can be increased on startup by passing the <seealso
+ marker="erts:erl#+e">+e</seealso> command line flag to
+ <c>erl</c> or by setting the environment variable
+ <c>ERL_MAX_ETS_TABLES</c> before starting the Erlang runtime
+ system.</p>
</item>
<tag><c>fullsweep_after</c></tag>
<item>
diff --git a/erts/doc/src/notes.xml b/erts/doc/src/notes.xml
index 77ffeefd04..b25e4ccbec 100644
--- a/erts/doc/src/notes.xml
+++ b/erts/doc/src/notes.xml
@@ -30,6 +30,30 @@
</header>
<p>This document describes the changes made to the ERTS application.</p>
+<section><title>Erts 5.10.3.1</title>
+
+ <section><title>Improvements and New Features</title>
+ <list>
+ <item>
+ <p>
+ Memory allocators will be able to create <c>sys_alloc</c>
+ carriers as fallback, if <c>mseg_alloc</c> cannot create
+ more carriers, on systems with <c>posix_memalign()</c>
+ support. This is similar to how it worked in pre-R16
+ releases.</p>
+ <p>
+ Windows systems will create carriers using
+ <c>_aligned_malloc()</c> and can by this use the new
+ optimized allocator header scheme introduced in R16 on
+ other platforms.</p>
+ <p>
+ Own Id: OTP-11318</p>
+ </item>
+ </list>
+ </section>
+
+</section>
+
<section><title>Erts 5.10.3</title>
<section><title>Fixed Bugs and Malfunctions</title>
diff --git a/erts/emulator/beam/erl_alloc.c b/erts/emulator/beam/erl_alloc.c
index 5eacff8829..6dec383cee 100644
--- a/erts/emulator/beam/erl_alloc.c
+++ b/erts/emulator/beam/erl_alloc.c
@@ -267,7 +267,6 @@ set_default_sl_alloc_opts(struct au_init *ip)
ip->atype = GOODFIT;
#endif
ip->init.util.name_prefix = "sl_";
- ip->init.util.mmmbc = 5;
ip->init.util.alloc_no = ERTS_ALC_A_SHORT_LIVED;
#ifndef SMALL_MEMORY
ip->init.util.mmbcs = 128*1024; /* Main carrier size */
@@ -295,7 +294,6 @@ set_default_std_alloc_opts(struct au_init *ip)
ip->atype = BESTFIT;
#endif
ip->init.util.name_prefix = "std_";
- ip->init.util.mmmbc = 5;
ip->init.util.alloc_no = ERTS_ALC_A_STANDARD;
#ifndef SMALL_MEMORY
ip->init.util.mmbcs = 128*1024; /* Main carrier size */
@@ -319,7 +317,6 @@ set_default_ll_alloc_opts(struct au_init *ip)
#endif
ip->init.util.ramv = 0;
ip->init.util.mmsbc = 0;
- ip->init.util.mmmbc = 0;
ip->init.util.sbct = ~((UWord) 0);
ip->init.util.name_prefix = "ll_";
ip->init.util.alloc_no = ERTS_ALC_A_LONG_LIVED;
@@ -370,7 +367,6 @@ set_default_eheap_alloc_opts(struct au_init *ip)
ip->thr_spec = 1;
ip->atype = GOODFIT;
#endif
- ip->init.util.mmmbc = 100;
ip->init.util.name_prefix = "eheap_";
ip->init.util.alloc_no = ERTS_ALC_A_EHEAP;
#ifndef SMALL_MEMORY
@@ -397,7 +393,6 @@ set_default_binary_alloc_opts(struct au_init *ip)
ip->thr_spec = 1;
ip->atype = BESTFIT;
#endif
- ip->init.util.mmmbc = 50;
ip->init.util.name_prefix = "binary_";
ip->init.util.alloc_no = ERTS_ALC_A_BINARY;
#ifndef SMALL_MEMORY
@@ -419,7 +414,6 @@ set_default_ets_alloc_opts(struct au_init *ip)
ip->thr_spec = 1;
ip->atype = BESTFIT;
#endif
- ip->init.util.mmmbc = 100;
ip->init.util.name_prefix = "ets_";
ip->init.util.alloc_no = ERTS_ALC_A_ETS;
#ifndef SMALL_MEMORY
@@ -495,13 +489,6 @@ adjust_tpref(struct au_init *ip, int no_sched)
/* ... shrink smallest multi-block carrier size */
if (ip->default_.smbcs)
ip->init.util.smbcs /= ERTS_MIN(4, no_sched);
- /* ... and more than three allocators shrink
- max mseg multi-block carriers */
- if (ip->default_.mmmbc && no_sched > 2) {
- ip->init.util.mmmbc /= ERTS_MIN(4, no_sched - 1);
- if (ip->init.util.mmmbc < 3)
- ip->init.util.mmmbc = 3;
- }
}
}
@@ -1560,7 +1547,6 @@ handle_args(int *argc, char **argv, erts_alc_hndl_args_init_t *init)
aui[a]->thr_spec = 0;
check_disable_carrier_migration(aui[a]);
aui[a]->init.util.ramv = 0;
- aui[a]->init.util.mmmbc = 10;
aui[a]->init.util.lmbcs = 5*1024*1024;
}
}
@@ -2716,8 +2702,8 @@ erts_allocator_options(void *proc)
#endif
Uint sz, *szp, *hp, **hpp;
Eterm res, features, settings;
- Eterm atoms[ERTS_ALC_A_MAX-ERTS_ALC_A_MIN+5];
- Uint terms[ERTS_ALC_A_MAX-ERTS_ALC_A_MIN+5];
+ Eterm atoms[ERTS_ALC_A_MAX-ERTS_ALC_A_MIN+6];
+ Uint terms[ERTS_ALC_A_MAX-ERTS_ALC_A_MIN+6];
int a, length;
SysAllocStat sas;
Uint *endp = NULL;
@@ -2830,6 +2816,9 @@ erts_allocator_options(void *proc)
if (use_mseg)
terms[length++] = am_atom_put("mseg_alloc", 10);
#endif
+#if ERTS_HAVE_ERTS_SYS_ALIGNED_ALLOC
+ terms[length++] = am_atom_put("sys_aligned_alloc", 17);
+#endif
features = length ? erts_bld_list(hpp, szp, length, terms) : NIL;
diff --git a/erts/emulator/beam/erl_alloc.h b/erts/emulator/beam/erl_alloc.h
index b5975c6c32..f83f6b39cf 100644
--- a/erts/emulator/beam/erl_alloc.h
+++ b/erts/emulator/beam/erl_alloc.h
@@ -54,6 +54,16 @@ void erts_sys_alloc_init(void);
void *erts_sys_alloc(ErtsAlcType_t, void *, Uint);
void *erts_sys_realloc(ErtsAlcType_t, void *, void *, Uint);
void erts_sys_free(ErtsAlcType_t, void *, void *);
+#if ERTS_HAVE_ERTS_SYS_ALIGNED_ALLOC
+/*
+ * Note 'alignment' must remain the same in calls to
+ * 'erts_sys_aligned_realloc()' and 'erts_sys_aligned_free()'
+ * as in the initial call to 'erts_sys_aligned_alloc()'.
+ */
+void *erts_sys_aligned_alloc(UWord alignment, UWord size);
+void *erts_sys_aligned_realloc(UWord alignment, void *ptr, UWord size, UWord old_size);
+void erts_sys_aligned_free(UWord alignment, void *ptr);
+#endif
Eterm erts_memory(int *, void *, void *, Eterm);
Eterm erts_allocated_areas(int *, void *, void *);
diff --git a/erts/emulator/beam/erl_alloc_util.c b/erts/emulator/beam/erl_alloc_util.c
index e6d9f83aed..825b68bb85 100644
--- a/erts/emulator/beam/erl_alloc_util.c
+++ b/erts/emulator/beam/erl_alloc_util.c
@@ -81,7 +81,6 @@
static int atoms_initialized = 0;
static int initialized = 0;
-
#define INV_SYS_ALLOC_CARRIER_MASK ((UWord) (sys_alloc_carrier_size - 1))
#define SYS_ALLOC_CARRIER_MASK (~INV_SYS_ALLOC_CARRIER_MASK)
#define SYS_ALLOC_CARRIER_FLOOR(X) ((X) & SYS_ALLOC_CARRIER_MASK)
@@ -194,9 +193,9 @@ MBC after deallocating first block:
#if MBC_ABLK_OFFSET_BITS
-# define MBC_SZ_MAX_LIMIT ((((UWord)1 << MBC_ABLK_OFFSET_BITS) - 1) << MSEG_ALIGN_BITS)
+# define MBC_SZ_MAX_LIMIT ((((UWord)1 << MBC_ABLK_OFFSET_BITS) - 1) << ERTS_SUPER_ALIGN_BITS)
-# define BLK_CARRIER_OFFSET(B, C) (((char*)(B) - (char*)(C)) >> MSEG_UNIT_SHIFT)
+# define BLK_CARRIER_OFFSET(B, C) (((char*)(B) - (char*)(C)) >> ERTS_SACRR_UNIT_SHIFT)
# define SET_MBC_ABLK_HDR(B, Sz, F, C) \
(ASSERT(((Sz) & ~MBC_ABLK_SZ_MASK) == 0), \
@@ -210,7 +209,7 @@ MBC after deallocating first block:
(B)->u.carrier = (C))
# define IS_MBC_FIRST_ABLK(AP,B) \
- ((((UWord)(B) & ~MSEG_UNIT_MASK) == MBC_HEADER_SIZE(AP)) \
+ ((((UWord)(B) & ~ERTS_SACRR_UNIT_MASK) == MBC_HEADER_SIZE(AP)) \
&& ((B)->bhdr & MBC_ABLK_OFFSET_MASK) == 0)
# define IS_MBC_FIRST_FBLK(AP,B) \
@@ -787,11 +786,15 @@ alcu_mseg_dealloc(Allctr_t *allctr, void *seg, Uint size, Uint flags)
#endif
static ERTS_INLINE void *
-alcu_sys_alloc(Allctr_t *allctr, Uint size)
+alcu_sys_alloc(Allctr_t *allctr, Uint size, int superalign)
{
void *res;
-
- res = erts_sys_alloc(0, NULL, size);
+#if ERTS_SA_MB_CARRIERS && ERTS_HAVE_ERTS_SYS_ALIGNED_ALLOC
+ if (superalign)
+ res = erts_sys_aligned_alloc(ERTS_SACRR_UNIT_SZ, size);
+ else
+#endif
+ res = erts_sys_alloc(0, NULL, size);
INC_CC(allctr->calls.sys_alloc);
if (erts_mtrace_enabled)
erts_mtrace_crr_alloc(res, allctr->alloc_no, ERTS_ALC_A_SYSTEM, size);
@@ -799,11 +802,16 @@ alcu_sys_alloc(Allctr_t *allctr, Uint size)
}
static ERTS_INLINE void *
-alcu_sys_realloc(Allctr_t *allctr, void *ptr, Uint size)
+alcu_sys_realloc(Allctr_t *allctr, void *ptr, Uint size, Uint old_size, int superalign)
{
void *res;
- res = erts_sys_realloc(0, NULL, ptr, size);
+#if ERTS_SA_MB_CARRIERS && ERTS_HAVE_ERTS_SYS_ALIGNED_ALLOC
+ if (superalign)
+ res = erts_sys_aligned_realloc(ERTS_SACRR_UNIT_SZ, ptr, size, old_size);
+ else
+#endif
+ res = erts_sys_realloc(0, NULL, ptr, size);
INC_CC(allctr->calls.sys_realloc);
if (erts_mtrace_enabled)
erts_mtrace_crr_realloc(res,
@@ -815,9 +823,14 @@ alcu_sys_realloc(Allctr_t *allctr, void *ptr, Uint size)
}
static ERTS_INLINE void
-alcu_sys_free(Allctr_t *allctr, void *ptr)
+alcu_sys_free(Allctr_t *allctr, void *ptr, int superalign)
{
- erts_sys_free(0, NULL, ptr);
+#if ERTS_SA_MB_CARRIERS && ERTS_HAVE_ERTS_SYS_ALIGNED_ALLOC
+ if (superalign)
+ erts_sys_aligned_free(ERTS_SACRR_UNIT_SZ, ptr);
+ else
+#endif
+ erts_sys_free(0, NULL, ptr);
INC_CC(allctr->calls.sys_free);
if (erts_mtrace_enabled)
erts_mtrace_crr_free(allctr->alloc_no, ERTS_ALC_A_SYSTEM, ptr);
@@ -1334,7 +1347,7 @@ erts_alcu_fix_alloc_shrink(Allctr_t *allctr, erts_aint32_t flgs)
return fix_nocpool_alloc_shrink(allctr, flgs);
}
-static void dealloc_carrier(Allctr_t *allctr, Carrier_t *crr, Uint mseg_flags);
+static void dealloc_carrier(Allctr_t *allctr, Carrier_t *crr, int superaligned);
#ifdef ERTS_SMP
@@ -1942,7 +1955,7 @@ mbc_alloc_block(Allctr_t *allctr, Uint size, Uint *blk_szp)
if (!blk) {
blk = create_carrier(allctr, get_blk_sz, CFLG_MBC);
-#if !HALFWORD_HEAP && !HAVE_SUPER_ALIGNED_MB_CARRIERS
+#if !HALFWORD_HEAP && !ERTS_SUPER_ALIGNED_MSEG_ONLY
if (!blk) {
/* Emergency! We couldn't create the carrier as we wanted.
Try to place it in a sys_alloced sbc. */
@@ -2978,7 +2991,7 @@ check_pending_dealloc_carrier(Allctr_t *allctr,
dcrr = crr;
crr = crr->next;
- dealloc_carrier(allctr, dcrr, ERTS_MSEG_FLG_2POW);
+ dealloc_carrier(allctr, dcrr, 1);
i++;
} while (crr && i < ERTS_ALC_MAX_DEALLOC_CARRIER);
@@ -3013,7 +3026,7 @@ schedule_dealloc_carrier(Allctr_t *allctr, Carrier_t *crr)
erts_aint_t max_size;
if (!ERTS_ALC_IS_CPOOL_ENABLED(allctr)) {
- dealloc_carrier(allctr, crr, ERTS_MSEG_FLG_2POW);
+ dealloc_carrier(allctr, crr, 1);
return;
}
@@ -3053,7 +3066,7 @@ schedule_dealloc_carrier(Allctr_t *allctr, Carrier_t *crr)
if (crr->cpool.thr_prgr == ERTS_THR_PRGR_INVALID
|| erts_thr_progress_has_reached(crr->cpool.thr_prgr)) {
- dealloc_carrier(allctr, crr, ERTS_MSEG_FLG_2POW);
+ dealloc_carrier(allctr, crr, 1);
return;
}
@@ -3188,10 +3201,10 @@ cpool_read_stat(Allctr_t *allctr, UWord *nocp, UWord *cszp, UWord *nobp, UWord *
#ifdef DEBUG
-#if HAVE_ERTS_MSEG
-#define ASSERT_MSEG_UNIT_SIZE_MULTIPLE(CSZ) ASSERT((CSZ) % MSEG_UNIT_SZ == 0)
+#if ERTS_SA_MB_CARRIERS
+#define ASSERT_ERTS_SACRR_UNIT_SIZE_MULTIPLE(CSZ) ASSERT((CSZ) % ERTS_SACRR_UNIT_SZ == 0)
#else
-#define ASSERT_MSEG_UNIT_SIZE_MULTIPLE(CSZ)
+#define ASSERT_ERTS_SACRR_UNIT_SIZE_MULTIPLE(CSZ)
#endif
static void CHECK_1BLK_CARRIER(Allctr_t* A, int SBC, int MSEGED, Carrier_t* C,
@@ -3216,7 +3229,7 @@ static void CHECK_1BLK_CARRIER(Allctr_t* A, int SBC, int MSEGED, Carrier_t* C,
}
if ((MSEGED)) {
ASSERT(IS_MSEG_CARRIER((C)));
- ASSERT_MSEG_UNIT_SIZE_MULTIPLE((CSZ));
+ ASSERT_ERTS_SACRR_UNIT_SIZE_MULTIPLE((CSZ));
}
else {
ASSERT(IS_SYS_ALLOC_CARRIER((C)));
@@ -3244,7 +3257,7 @@ create_carrier(Allctr_t *allctr, Uint umem_sz, UWord flags)
#if HALFWORD_HEAP
flags |= CFLG_FORCE_MSEG;
-#elif HAVE_SUPER_ALIGNED_MB_CARRIERS
+#elif ERTS_SUPER_ALIGNED_MSEG_ONLY
if (flags & CFLG_MBC) {
flags |= CFLG_FORCE_MSEG;
}
@@ -3287,7 +3300,7 @@ create_carrier(Allctr_t *allctr, Uint umem_sz, UWord flags)
if (allctr->sbcs.curr.norm.mseg.no >= allctr->max_mseg_sbcs)
goto try_sys_alloc;
}
-#if !HAVE_SUPER_ALIGNED_MB_CARRIERS
+#if !ERTS_SUPER_ALIGNED_MSEG_ONLY
else {
if (allctr->mbcs.curr.norm.mseg.no >= allctr->max_mseg_mbcs)
goto try_sys_alloc;
@@ -3350,12 +3363,12 @@ create_carrier(Allctr_t *allctr, Uint umem_sz, UWord flags)
? UNIT_CEILING(bcrr_sz)
: SYS_ALLOC_CARRIER_CEILING(bcrr_sz));
- crr = (Carrier_t *) alcu_sys_alloc(allctr, crr_sz);
+ crr = (Carrier_t *) alcu_sys_alloc(allctr, crr_sz, flags & CFLG_MBC);
if (!crr) {
if (crr_sz > UNIT_CEILING(bcrr_sz)) {
crr_sz = UNIT_CEILING(bcrr_sz);
- crr = (Carrier_t *) alcu_sys_alloc(allctr, crr_sz);
+ crr = (Carrier_t *) alcu_sys_alloc(allctr, crr_sz, flags & CFLG_MBC);
}
if (!crr) {
#if HAVE_ERTS_MSEG
@@ -3453,7 +3466,7 @@ resize_carrier(Allctr_t *allctr, Block_t *old_blk, Uint umem_sz, UWord flags)
if (!(flags & CFLG_FORCE_SYS_ALLOC)) {
new_crr_sz = new_blk_sz + SBC_HEADER_SIZE;
- new_crr_sz = MSEG_UNIT_CEILING(new_crr_sz);
+ new_crr_sz = ERTS_SACRR_UNIT_CEILING(new_crr_sz);
new_crr = (Carrier_t *) alcu_mseg_realloc(allctr,
old_crr,
old_crr_sz,
@@ -3503,7 +3516,9 @@ resize_carrier(Allctr_t *allctr, Block_t *old_blk, Uint umem_sz, UWord flags)
new_crr = (Carrier_t *) alcu_sys_realloc(allctr,
(void *) old_crr,
- new_crr_sz);
+ new_crr_sz,
+ old_crr_sz,
+ 0);
if (new_crr) {
sys_realloc_success:
SET_CARRIER_SZ(new_crr, new_crr_sz);
@@ -3522,7 +3537,9 @@ resize_carrier(Allctr_t *allctr, Block_t *old_blk, Uint umem_sz, UWord flags)
new_crr_sz = UNIT_CEILING(new_crr_sz);
new_crr = (Carrier_t *) alcu_sys_realloc(allctr,
(void *) old_crr,
- new_crr_sz);
+ new_crr_sz,
+ old_crr_sz,
+ 0);
if (new_crr)
goto sys_realloc_success;
}
@@ -3541,7 +3558,7 @@ resize_carrier(Allctr_t *allctr, Block_t *old_blk, Uint umem_sz, UWord flags)
(void *) BLK2UMEM(old_blk),
MIN(new_blk_sz, old_blk_sz) - ABLK_HDR_SZ);
unlink_carrier(&allctr->sbc_list, old_crr);
- alcu_sys_free(allctr, old_crr);
+ alcu_sys_free(allctr, old_crr, 0);
}
else {
/* Old carrier unchanged; restore... */
@@ -3554,14 +3571,17 @@ resize_carrier(Allctr_t *allctr, Block_t *old_blk, Uint umem_sz, UWord flags)
}
static void
-dealloc_carrier(Allctr_t *allctr, Carrier_t *crr, Uint mseg_flags)
+dealloc_carrier(Allctr_t *allctr, Carrier_t *crr, int superaligned)
{
#if HAVE_ERTS_MSEG
if (IS_MSEG_CARRIER(crr))
- alcu_mseg_dealloc(allctr, crr, CARRIER_SZ(crr), mseg_flags);
+ alcu_mseg_dealloc(allctr, crr, CARRIER_SZ(crr),
+ (superaligned
+ ? ERTS_MSEG_FLG_2POW
+ : ERTS_MSEG_FLG_NONE));
else
#endif
- alcu_sys_free(allctr, crr);
+ alcu_sys_free(allctr, crr, superaligned);
}
static void
@@ -3581,7 +3601,7 @@ destroy_carrier(Allctr_t *allctr, Block_t *blk, Carrier_t **busy_pcrr_pp)
#if HAVE_ERTS_MSEG
if (IS_MSEG_CARRIER(crr)) {
- ASSERT(crr_sz % MSEG_UNIT_SZ == 0);
+ ASSERT(crr_sz % ERTS_SACRR_UNIT_SZ == 0);
STAT_MSEG_SBC_FREE(allctr, crr_sz, blk_sz);
}
else
@@ -3590,7 +3610,7 @@ destroy_carrier(Allctr_t *allctr, Block_t *blk, Carrier_t **busy_pcrr_pp)
unlink_carrier(&allctr->sbc_list, crr);
- dealloc_carrier(allctr, crr, ERTS_MSEG_FLG_NONE);
+ dealloc_carrier(allctr, crr, 0);
}
else {
ASSERT(IS_MBC_FIRST_FBLK(allctr, blk));
@@ -3624,7 +3644,7 @@ destroy_carrier(Allctr_t *allctr, Block_t *blk, Carrier_t **busy_pcrr_pp)
unlink_carrier(&allctr->mbc_list, crr);
#if HAVE_ERTS_MSEG
if (IS_MSEG_CARRIER(crr)) {
- ASSERT(crr_sz % MSEG_UNIT_SZ == 0);
+ ASSERT(crr_sz % ERTS_SACRR_UNIT_SZ == 0);
STAT_MSEG_MBC_FREE(allctr, crr_sz);
}
else
@@ -3635,10 +3655,9 @@ destroy_carrier(Allctr_t *allctr, Block_t *blk, Carrier_t **busy_pcrr_pp)
#ifdef ERTS_SMP
schedule_dealloc_carrier(allctr, crr);
#else
- dealloc_carrier(allctr, crr, ERTS_MSEG_FLG_2POW);
+ dealloc_carrier(allctr, crr, 1);
#endif
}
-
}
@@ -5086,7 +5105,7 @@ do_erts_alcu_realloc(ErtsAlcType_t type,
crr_sz = SYS_ALLOC_CARRIER_CEILING(used_sz);
#if HAVE_ERTS_MSEG
else
- crr_sz = MSEG_UNIT_CEILING(used_sz);
+ crr_sz = ERTS_SACRR_UNIT_CEILING(used_sz);
#endif
diff_sz_val = crr_sz - used_sz;
if (diff_sz_val < (~((Uint) 0) / 100))
@@ -5454,7 +5473,7 @@ erts_alcu_start(Allctr_t *allctr, AllctrInit_t *init)
allctr->mbc_move_threshold = init->rmbcmt;
#if HAVE_ERTS_MSEG
allctr->max_mseg_sbcs = init->mmsbc;
-# if HAVE_SUPER_ALIGNED_MB_CARRIERS
+# if ERTS_SUPER_ALIGNED_MSEG_ONLY
allctr->max_mseg_mbcs = ~(Uint)0;
# else
allctr->max_mseg_mbcs = init->mmmbc;
@@ -5570,7 +5589,7 @@ erts_alcu_start(Allctr_t *allctr, AllctrInit_t *init)
CFLG_MBC
| CFLG_FORCE_SIZE
| CFLG_NO_CPOOL
-#if !HALFWORD_HEAP && !HAVE_SUPER_ALIGNED_MB_CARRIERS
+#if !HALFWORD_HEAP && !ERTS_SUPER_ALIGNED_MSEG_ONLY
| CFLG_FORCE_SYS_ALLOC
#endif
| CFLG_MAIN_CARRIER);
@@ -5656,9 +5675,9 @@ erts_alcu_init(AlcUInit_t *init)
#endif
ASSERT(SBC_BLK_SZ_MASK == MBC_FBLK_SZ_MASK); /* see BLK_SZ */
#if HAVE_ERTS_MSEG
- ASSERT(erts_mseg_unit_size() == MSEG_UNIT_SZ);
+ ASSERT(erts_mseg_unit_size() == ERTS_SACRR_UNIT_SZ);
max_mseg_carriers = init->mmc;
- sys_alloc_carrier_size = MSEG_UNIT_CEILING(init->ycs);
+ sys_alloc_carrier_size = ERTS_SACRR_UNIT_CEILING(init->ycs);
#else /* #if HAVE_ERTS_MSEG */
sys_alloc_carrier_size = ((init->ycs + 4095) / 4096) * 4096;
#endif
@@ -5819,7 +5838,7 @@ check_blk_carrier(Allctr_t *allctr, Block_t *iblk)
ASSERT(CARRIER_SZ(sbc) - SBC_HEADER_SIZE >= SBC_BLK_SZ(iblk));
#if HAVE_ERTS_MSEG
if (IS_MSEG_CARRIER(sbc)) {
- ASSERT(CARRIER_SZ(sbc) % MSEG_UNIT_SZ == 0);
+ ASSERT(CARRIER_SZ(sbc) % ERTS_SACRR_UNIT_SZ == 0);
}
#endif
crr = sbc;
@@ -5904,7 +5923,7 @@ check_blk_carrier(Allctr_t *allctr, Block_t *iblk)
#if HAVE_ERTS_MSEG
if (IS_MSEG_CARRIER(crr)) {
- ASSERT(CARRIER_SZ(crr) % MSEG_UNIT_SZ == 0);
+ ASSERT(CARRIER_SZ(crr) % ERTS_SACRR_UNIT_SZ == 0);
}
#endif
cl = &allctr->mbc_list;
diff --git a/erts/emulator/beam/erl_alloc_util.h b/erts/emulator/beam/erl_alloc_util.h
index 02cbe5c5d0..70ecf28172 100644
--- a/erts/emulator/beam/erl_alloc_util.h
+++ b/erts/emulator/beam/erl_alloc_util.h
@@ -75,7 +75,7 @@ typedef struct {
#define ERTS_DEFAULT_ALCU_INIT { \
1024*1024, /* (bytes) ycs: sys_alloc carrier size */\
- 1024 /* (amount) mmc: max mseg carriers */\
+ ~((UWord) 0) /* (amount) mmc: max mseg carriers */ \
}
#define ERTS_DEFAULT_ALLCTR_INIT { \
@@ -95,7 +95,7 @@ typedef struct {
50, /* (%) rmbcmt: rel mbc move threshold */\
1024*1024, /* (bytes) mmbcs: main multiblock carrier size */\
256, /* (amount) mmsbc: max mseg sbcs */\
- 10, /* (amount) mmmbc: max mseg mbcs */\
+ ~((UWord) 0), /* (amount) mmmbc: max mseg mbcs */ \
10*1024*1024, /* (bytes) lmbcs: largest mbc size */\
1024*1024, /* (bytes) smbcs: smallest mbc size */\
10, /* (amount) mbcgs: mbc growth stages */\
@@ -128,7 +128,7 @@ typedef struct {
80, /* (%) rsbcmt: rel sbc move threshold */\
128*1024, /* (bytes) mmbcs: main multiblock carrier size */\
256, /* (amount) mmsbc: max mseg sbcs */\
- 10, /* (amount) mmmbc: max mseg mbcs */\
+ ~((UWord) 0), /* (amount) mmmbc: max mseg mbcs */ \
1024*1024, /* (bytes) lmbcs: largest mbc size */\
128*1024, /* (bytes) smbcs: smallest mbc size */\
10, /* (amount) mbcgs: mbc growth stages */\
@@ -217,25 +217,34 @@ erts_aint32_t erts_alcu_fix_alloc_shrink(Allctr_t *, erts_aint32_t);
#define MBC_FBLK_SZ_MASK UNIT_MASK
#define CARRIER_SZ_MASK UNIT_MASK
-#if HAVE_ERTS_MSEG
-
-# define MSEG_UNIT_SHIFT MSEG_ALIGN_BITS
-# define MSEG_UNIT_SZ (1 << MSEG_UNIT_SHIFT)
-# define MSEG_UNIT_MASK ((~(UWord)0) << MSEG_UNIT_SHIFT)
-
-# define MSEG_UNIT_FLOOR(X) ((X) & MSEG_UNIT_MASK)
-# define MSEG_UNIT_CEILING(X) MSEG_UNIT_FLOOR((X) + ~MSEG_UNIT_MASK)
-
+#if ERTS_HAVE_MSEG_SUPER_ALIGNED \
+ || (!HAVE_ERTS_MSEG && ERTS_HAVE_ERTS_SYS_ALIGNED_ALLOC)
+# ifndef MSEG_ALIGN_BITS
+# define ERTS_SUPER_ALIGN_BITS MSEG_ALIGN_BITS
+# else
+# define ERTS_SUPER_ALIGN_BITS 18
+# endif
# ifdef ARCH_64
# define MBC_ABLK_OFFSET_BITS 24
-# elif HAVE_SUPER_ALIGNED_MB_CARRIERS
+# else
# define MBC_ABLK_OFFSET_BITS 9
/* Affects hard limits for sbct and lmbcs documented in erts_alloc.xml */
# endif
-#endif
-#ifndef MBC_ABLK_OFFSET_BITS
+# define ERTS_SACRR_UNIT_SHIFT ERTS_SUPER_ALIGN_BITS
+# define ERTS_SACRR_UNIT_SZ (1 << ERTS_SACRR_UNIT_SHIFT)
+# define ERTS_SACRR_UNIT_MASK ((~(UWord)0) << ERTS_SACRR_UNIT_SHIFT)
+# define ERTS_SACRR_UNIT_FLOOR(X) ((X) & ERTS_SACRR_UNIT_MASK)
+# define ERTS_SACRR_UNIT_CEILING(X) ERTS_SACRR_UNIT_FLOOR((X) + ~ERTS_SACRR_UNIT_MASK)
+# define ERTS_SA_MB_CARRIERS 1
+#else
+# define ERTS_SA_MB_CARRIERS 0
# define MBC_ABLK_OFFSET_BITS 0 /* no carrier offset in block header */
#endif
+#if ERTS_HAVE_MSEG_SUPER_ALIGNED && !ERTS_HAVE_ERTS_SYS_ALIGNED_ALLOC
+# define ERTS_SUPER_ALIGNED_MSEG_ONLY 1
+#else
+# define ERTS_SUPER_ALIGNED_MSEG_ONLY 0
+#endif
#if MBC_ABLK_OFFSET_BITS
# define MBC_ABLK_OFFSET_SHIFT (sizeof(UWord)*8 - MBC_ABLK_OFFSET_BITS)
@@ -327,8 +336,8 @@ typedef struct {
(B)->u.carrier)
# define ABLK_TO_MBC(B) \
(ASSERT(IS_MBC_BLK(B) && !IS_FREE_BLK(B)), \
- (Carrier_t*)((MSEG_UNIT_FLOOR((UWord)(B)) - \
- (((B)->bhdr >> MBC_ABLK_OFFSET_SHIFT) << MSEG_UNIT_SHIFT))))
+ (Carrier_t*)((ERTS_SACRR_UNIT_FLOOR((UWord)(B)) - \
+ (((B)->bhdr >> MBC_ABLK_OFFSET_SHIFT) << ERTS_SACRR_UNIT_SHIFT))))
# define BLK_TO_MBC(B) (IS_FREE_BLK(B) ? FBLK_TO_MBC(B) : ABLK_TO_MBC(B))
#else
# define FBLK_TO_MBC(B) ((B)->carrier)
diff --git a/erts/emulator/beam/erl_bif_binary.c b/erts/emulator/beam/erl_bif_binary.c
index 0db19a1ee6..ff775691b3 100644
--- a/erts/emulator/beam/erl_bif_binary.c
+++ b/erts/emulator/beam/erl_bif_binary.c
@@ -927,6 +927,9 @@ static int do_binary_match_compile(Eterm argument, Eterm *tag, Binary **binp)
if (binary_bitsize(b) != 0) {
goto badarg;
}
+ if (binary_size(b) == 0) {
+ goto badarg;
+ }
++words;
characters += binary_size(b);
}
diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c
index 673dfc658c..3b25efd9af 100755
--- a/erts/emulator/beam/erl_bif_info.c
+++ b/erts/emulator/beam/erl_bif_info.c
@@ -2636,6 +2636,9 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1)
BIF_RET(res);
}
+ else if (ERTS_IS_ATOM_STR("ets_limit",BIF_ARG_1)) {
+ BIF_RET(make_small(erts_db_get_max_tabs()));
+ }
BIF_ERROR(BIF_P, BADARG);
}
diff --git a/erts/emulator/beam/erl_db.c b/erts/emulator/beam/erl_db.c
index 98c2988323..40b8eaf8fb 100644
--- a/erts/emulator/beam/erl_db.c
+++ b/erts/emulator/beam/erl_db.c
@@ -3811,6 +3811,13 @@ erts_db_foreach_offheap(DbTable *tb,
tb->common.meth->db_foreach_offheap(tb, func, arg);
}
+/* retrieve max number of ets tables */
+Uint
+erts_db_get_max_tabs()
+{
+ return db_max_tabs;
+}
+
/*
* For testing of meta tables only.
*
diff --git a/erts/emulator/beam/erl_db.h b/erts/emulator/beam/erl_db.h
index 6b62e10eb7..5b4681fc90 100644
--- a/erts/emulator/beam/erl_db.h
+++ b/erts/emulator/beam/erl_db.h
@@ -79,6 +79,8 @@ extern erts_smp_atomic_t erts_ets_misc_mem_size;
Eterm erts_ets_colliding_names(Process*, Eterm name, Uint cnt);
+Uint erts_db_get_max_tabs(void);
+
#endif
#if defined(ERTS_WANT_DB_INTERNAL__) && !defined(ERTS_HAVE_DB_INTERNAL__)
diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h
index 05bff430e3..096394b878 100644
--- a/erts/emulator/beam/sys.h
+++ b/erts/emulator/beam/sys.h
@@ -1012,6 +1012,9 @@ void erl_bin_write(unsigned char *, int, int);
#define ERTS_SMALL_ABS(Small) labs(Small)
#endif
+#ifndef ERTS_HAVE_ERTS_SYS_ALIGNED_ALLOC
+# define ERTS_HAVE_ERTS_SYS_ALIGNED_ALLOC 0
+#endif
#ifdef __WIN32__
void call_break_handler(void);
diff --git a/erts/emulator/sys/common/erl_mseg.h b/erts/emulator/sys/common/erl_mseg.h
index a4f250ceab..a1b000f51c 100644
--- a/erts/emulator/sys/common/erl_mseg.h
+++ b/erts/emulator/sys/common/erl_mseg.h
@@ -32,13 +32,13 @@
#if HAVE_MMAP
# define HAVE_ERTS_MSEG 1
-# define HAVE_SUPER_ALIGNED_MB_CARRIERS 1
+# define ERTS_HAVE_MSEG_SUPER_ALIGNED 1
#else
# define HAVE_ERTS_MSEG 0
-# define HAVE_SUPER_ALIGNED_MB_CARRIERS 0
+# define ERTS_HAVE_MSEG_SUPER_ALIGNED 0
#endif
-#if HAVE_SUPER_ALIGNED_MB_CARRIERS
+#if ERTS_HAVE_MSEG_SUPER_ALIGNED
# define MSEG_ALIGN_BITS (18)
/* Affects hard limits for sbct and lmbcs documented in erts_alloc.xml */
#else
diff --git a/erts/emulator/sys/unix/erl_unix_sys.h b/erts/emulator/sys/unix/erl_unix_sys.h
index c8fcec8547..2c47aa06c2 100644
--- a/erts/emulator/sys/unix/erl_unix_sys.h
+++ b/erts/emulator/sys/unix/erl_unix_sys.h
@@ -107,6 +107,10 @@
#endif
#include <netdb.h>
+#ifdef HAVE_POSIX_MEMALIGN
+# define ERTS_HAVE_ERTS_SYS_ALIGNED_ALLOC 1
+#endif
+
/*
* Make sure that MAXPATHLEN is defined.
*/
diff --git a/erts/emulator/sys/unix/sys.c b/erts/emulator/sys/unix/sys.c
index a7ea4b2490..fdc3167c62 100644
--- a/erts/emulator/sys/unix/sys.c
+++ b/erts/emulator/sys/unix/sys.c
@@ -2524,6 +2524,52 @@ void erts_sys_alloc_init(void)
{
}
+#if ERTS_HAVE_ERTS_SYS_ALIGNED_ALLOC
+void *erts_sys_aligned_alloc(UWord alignment, UWord size)
+{
+#ifdef HAVE_POSIX_MEMALIGN
+ void *ptr = NULL;
+ int error;
+ ASSERT(alignment && (alignment & ~alignment) == 0); /* power of 2 */
+ error = posix_memalign(&ptr, (size_t) alignment, (size_t) size);
+#if HAVE_ERTS_MSEG
+ if (error || !ptr) {
+ erts_mseg_clear_cache();
+ error = posix_memalign(&ptr, (size_t) alignment, (size_t) size);
+ }
+#endif
+ if (error) {
+ errno = error;
+ return NULL;
+ }
+ if (!ptr)
+ errno = ENOMEM;
+ ASSERT(!ptr || (((UWord) ptr) & (alignment - 1)) == 0);
+ return ptr;
+#else
+# error "Missing erts_sys_aligned_alloc() implementation"
+#endif
+}
+
+void erts_sys_aligned_free(UWord alignment, void *ptr)
+{
+ ASSERT(alignment && (alignment & ~alignment) == 0); /* power of 2 */
+ free(ptr);
+}
+
+void *erts_sys_aligned_realloc(UWord alignment, void *ptr, UWord size, UWord old_size)
+{
+ void *new_ptr = erts_sys_aligned_alloc(alignment, size);
+ if (new_ptr) {
+ UWord copy_size = old_size < size ? old_size : size;
+ sys_memcpy(new_ptr, ptr, (size_t) copy_size);
+ erts_sys_aligned_free(alignment, ptr);
+ }
+ return new_ptr;
+}
+
+#endif
+
void *erts_sys_alloc(ErtsAlcType_t t, void *x, Uint sz)
{
void *res = malloc((size_t) sz);
diff --git a/erts/emulator/sys/win32/erl_win_sys.h b/erts/emulator/sys/win32/erl_win_sys.h
index 5ce1a61303..0deb097b1a 100644
--- a/erts/emulator/sys/win32/erl_win_sys.h
+++ b/erts/emulator/sys/win32/erl_win_sys.h
@@ -82,7 +82,6 @@
#define NO_ERF
#define NO_ERFC
-#define NO_SYSLOG
#define NO_SYSCONF
#define NO_DAEMON
#define NO_PWD
@@ -95,6 +94,8 @@
# define ERTS_I64_LITERAL(X) X##i64
#endif
+#define ERTS_HAVE_ERTS_SYS_ALIGNED_ALLOC 1
+
/*
* Practial Windows specific macros.
*/
diff --git a/erts/emulator/sys/win32/sys.c b/erts/emulator/sys/win32/sys.c
index 922967c698..6a1d6b08f4 100755
--- a/erts/emulator/sys/win32/sys.c
+++ b/erts/emulator/sys/win32/sys.c
@@ -32,7 +32,7 @@
#include "erl_threads.h"
#include "../../drivers/win32/win_con.h"
#include "erl_cpu_topology.h"
-
+#include <malloc.h>
void erts_sys_init_float(void);
@@ -2912,6 +2912,30 @@ void erts_sys_free(ErtsAlcType_t t, void *x, void *p)
free(p);
}
+void *erts_sys_aligned_alloc(UWord alignment, UWord size)
+{
+ void *ptr;
+ ASSERT(alignment && (alignment & ~alignment) == 0); /* power of 2 */
+ ptr = _aligned_malloc((size_t) size, (size_t) alignment);
+ ASSERT(!ptr || (((UWord) ptr) & (alignment - 1)) == 0);
+ return ptr;
+}
+
+void erts_sys_aligned_free(UWord alignment, void *ptr)
+{
+ ASSERT(alignment && (alignment & ~alignment) == 0); /* power of 2 */
+ _aligned_free(ptr);
+}
+
+void *erts_sys_aligned_realloc(UWord alignment, void *ptr, UWord size, UWord old_size)
+{
+ void *new_ptr;
+ ASSERT(alignment && (alignment & ~alignment) == 0); /* power of 2 */
+ new_ptr = _aligned_realloc(ptr, (size_t) size, (size_t) alignment);
+ ASSERT(!new_ptr || (((UWord) new_ptr) & (alignment - 1)) == 0);
+ return new_ptr;
+}
+
static Preload* preloaded = NULL;
static unsigned* res_name = NULL;
static int num_preloaded = 0;
diff --git a/erts/emulator/test/system_info_SUITE.erl b/erts/emulator/test/system_info_SUITE.erl
index 0350eb671d..ceb4afb5cf 100644
--- a/erts/emulator/test/system_info_SUITE.erl
+++ b/erts/emulator/test/system_info_SUITE.erl
@@ -37,7 +37,8 @@
init_per_group/2,end_per_group/2,
init_per_testcase/2, end_per_testcase/2]).
--export([process_count/1, system_version/1, misc_smoke_tests/1, heap_size/1, wordsize/1, memory/1]).
+-export([process_count/1, system_version/1, misc_smoke_tests/1, heap_size/1, wordsize/1, memory/1,
+ ets_limit/1]).
-define(DEFAULT_TIMEOUT, ?t:minutes(2)).
@@ -45,7 +46,7 @@ suite() -> [{ct_hooks,[ts_install_cth]}].
all() ->
[process_count, system_version, misc_smoke_tests,
- heap_size, wordsize, memory].
+ heap_size, wordsize, memory, ets_limit].
groups() ->
[].
@@ -496,3 +497,52 @@ mapn(_Fun, 0) ->
[];
mapn(Fun, N) ->
[Fun(N) | mapn(Fun, N-1)].
+
+ets_limit(doc) ->
+ "Verify system_info(ets_limit) reflects max ETS table settings.";
+ets_limit(suite) -> [];
+ets_limit(Config0) when is_list(Config0) ->
+ Config = [{testcase,ets_limit}|Config0],
+ true = is_integer(get_ets_limit(Config)),
+ 12345 = get_ets_limit(Config, 12345),
+ ok.
+
+get_ets_limit(Config) ->
+ get_ets_limit(Config, 0).
+get_ets_limit(Config, EtsMax) ->
+ Envs = case EtsMax of
+ 0 -> [];
+ _ -> [{"ERL_MAX_ETS_TABLES", integer_to_list(EtsMax)}]
+ end,
+ {ok, Node} = start_node(Config, Envs),
+ Me = self(),
+ Ref = make_ref(),
+ spawn_link(Node,
+ fun() ->
+ Res = erlang:system_info(ets_limit),
+ unlink(Me),
+ Me ! {Ref, Res}
+ end),
+ receive
+ {Ref, Res} ->
+ Res
+ end,
+ stop_node(Node),
+ Res.
+
+start_node(Config, Envs) when is_list(Config) ->
+ Pa = filename:dirname(code:which(?MODULE)),
+ {A, B, C} = now(),
+ Name = list_to_atom(atom_to_list(?MODULE)
+ ++ "-"
+ ++ atom_to_list(?config(testcase, Config))
+ ++ "-"
+ ++ integer_to_list(A)
+ ++ "-"
+ ++ integer_to_list(B)
+ ++ "-"
+ ++ integer_to_list(C)),
+ ?t:start_node(Name, peer, [{args, "-pa "++Pa}, {env, Envs}]).
+
+stop_node(Node) ->
+ ?t:stop_node(Node).
diff --git a/erts/epmd/src/epmd.c b/erts/epmd/src/epmd.c
index 94bb74c876..2d55b37ff3 100644
--- a/erts/epmd/src/epmd.c
+++ b/erts/epmd/src/epmd.c
@@ -286,7 +286,7 @@ static void run_daemon(EpmdVars *g)
/* fork to make sure first child is not a process group leader */
if (( child_pid = fork()) < 0)
{
-#ifndef NO_SYSLOG
+#ifdef HAVE_SYSLOG_H
syslog(LOG_ERR,"erlang mapper daemon cant fork %m");
#endif
epmd_cleanup_exit(g,1);
@@ -312,7 +312,7 @@ static void run_daemon(EpmdVars *g)
if ((child_pid = fork()) < 0)
{
-#ifndef NO_SYSLOG
+#ifdef HAVE_SYSLOG_H
syslog(LOG_ERR,"erlang mapper daemon cant fork 2'nd time %m");
#endif
epmd_cleanup_exit(g,1);
@@ -483,7 +483,7 @@ static void dbg_gen_printf(int onsyslog,int perr,int from_level,
if (g->is_daemon)
{
-#ifndef NO_SYSLOG
+#ifdef HAVE_SYSLOG_H
if (onsyslog)
{
erts_vsnprintf(buf, DEBUG_BUFFER_SIZE, format, args);
diff --git a/erts/epmd/src/epmd_int.h b/erts/epmd/src/epmd_int.h
index ac354dcc78..656dbd1f45 100644
--- a/erts/epmd/src/epmd_int.h
+++ b/erts/epmd/src/epmd_int.h
@@ -25,13 +25,11 @@
definitions ourselves */
#ifdef __WIN32__
-#define NO_SYSLOG
#define NO_SYSCONF
#define NO_DAEMON
#endif
#ifdef VXWORKS
-#define NO_SYSLOG
#define NO_SYSCONF
#define NO_DAEMON
#define NO_FCNTL
@@ -98,7 +96,7 @@
#include <errno.h>
-#ifndef NO_SYSLOG
+#ifdef HAVE_SYSLOG_H
# include <syslog.h>
#endif
diff --git a/erts/etc/unix/run_erl.c b/erts/etc/unix/run_erl.c
index b69e31f784..2018bc007c 100644
--- a/erts/etc/unix/run_erl.c
+++ b/erts/etc/unix/run_erl.c
@@ -60,7 +60,7 @@
#include <dirent.h>
#include <termios.h>
#include <time.h>
-#ifndef NO_SYSLOG
+#ifdef HAVE_SYSLOG_H
# include <syslog.h>
#endif
#ifdef HAVE_PTY_H
@@ -197,8 +197,9 @@ static char* outbuf_in;
#endif
-#ifdef NO_SYSLOG
+#ifndef HAVE_SYSLOG_H
# define OPEN_SYSLOG() ((void) 0)
+# define LOG_ERR NULL
#else
# define OPEN_SYSLOG() openlog(simple_basename(program_name), \
LOG_PID|LOG_CONS|LOG_NOWAIT,LOG_USER)
@@ -415,7 +416,7 @@ int main(int argc, char **argv)
}
#endif
-#ifndef NO_SYSLOG
+#ifdef HAVE_SYSLOG_H
/* Before fiddling with file descriptors we make sure syslog is turned off
or "closed". In the single case where we might want it again,
we will open it again instead. Would not want syslog to
@@ -1163,7 +1164,7 @@ static void error_logf(int priority, int line, const char *format, ...)
va_list args;
va_start(args, format);
-#ifndef NO_SYSLOG
+#ifdef HAVE_SYSLOG_H
if (run_daemon) {
vsyslog(priority,format,args);
}
diff --git a/erts/preloaded/ebin/erlang.beam b/erts/preloaded/ebin/erlang.beam
index 9da4f3cd00..f1791200e0 100644
--- a/erts/preloaded/ebin/erlang.beam
+++ b/erts/preloaded/ebin/erlang.beam
Binary files differ
diff --git a/erts/preloaded/src/erlang.erl b/erts/preloaded/src/erlang.erl
index a969ef91dc..d40ee7c59a 100644
--- a/erts/preloaded/src/erlang.erl
+++ b/erts/preloaded/src/erlang.erl
@@ -2099,13 +2099,14 @@ tuple_to_list(_Tuple) ->
(creation) -> integer();
(debug_compiled) -> boolean();
(dist) -> binary();
+ (dist_buf_busy_limit) -> non_neg_integer();
(dist_ctrl) -> {Node :: node(),
ControllingEntity :: port() | pid()};
(driver_version) -> string();
(dynamic_trace) -> none | dtrace | systemtap;
(dynamic_trace_probes) -> boolean();
(elib_malloc) -> false;
- (dist_buf_busy_limit) -> non_neg_integer();
+ (ets_limit) -> pos_integer();
(fullsweep_after) -> {fullsweep_after, non_neg_integer()};
(garbage_collection) -> [{atom(), integer()}];
(heap_sizes) -> [non_neg_integer()];
diff --git a/erts/vsn.mk b/erts/vsn.mk
index e235c50f0b..9afd46b961 100644
--- a/erts/vsn.mk
+++ b/erts/vsn.mk
@@ -17,8 +17,8 @@
# %CopyrightEnd%
#
-VSN = 5.10.3
-SYSTEM_VSN = R16B02
+VSN = 5.10.4
+SYSTEM_VSN = R16B03
# Port number 4365 in 4.2
# Port number 4366 in 4.3