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-rw-r--r--erts/emulator/beam/erl_alloc.c18
-rw-r--r--erts/emulator/beam/erl_bif_ddll.c30
-rw-r--r--erts/emulator/beam/erl_db_hash.c24
-rw-r--r--erts/emulator/beam/erl_db_hash.h3
-rw-r--r--erts/emulator/drivers/common/inet_drv.c27
-rw-r--r--erts/emulator/valgrind/suppress.patched.3.6.0307
-rw-r--r--erts/emulator/valgrind/suppress.standard268
7 files changed, 634 insertions, 43 deletions
diff --git a/erts/emulator/beam/erl_alloc.c b/erts/emulator/beam/erl_alloc.c
index 33d6cf5f2f..140a84d5fc 100644
--- a/erts/emulator/beam/erl_alloc.c
+++ b/erts/emulator/beam/erl_alloc.c
@@ -2758,16 +2758,18 @@ erts_allocator_options(void *proc)
void *erts_alloc_permanent_cache_aligned(ErtsAlcType_t type, Uint size)
{
- UWord v = (UWord) erts_alloc(type, size + (ERTS_CACHE_LINE_SIZE-1));
+ UWord v = (UWord) erts_alloc(type, size + (ERTS_CACHE_LINE_SIZE-1)
+#ifdef VALGRIND
+ + sizeof(UWord)
+#endif
+ );
#ifdef VALGRIND
- { /* Avoid Leak_PossiblyLost */
- static UWord vg_root_set[10];
- static unsigned ix = 0;
- if (ix >= sizeof(vg_root_set) / sizeof(*vg_root_set)) {
- erl_exit(ERTS_ABORT_EXIT, "Too many erts_alloc_permanent_cache_aligned's\n");
- }
- vg_root_set[ix++] = v; /* not thread safe */
+ { /* Link them to avoid Leak_PossiblyLost */
+ static UWord* first_in_list = NULL;
+ *(UWord**)v = first_in_list;
+ first_in_list = (UWord*) v;
+ v += sizeof(UWord);
}
#endif
diff --git a/erts/emulator/beam/erl_bif_ddll.c b/erts/emulator/beam/erl_bif_ddll.c
index a9fd28c66b..b2d5722e9b 100644
--- a/erts/emulator/beam/erl_bif_ddll.c
+++ b/erts/emulator/beam/erl_bif_ddll.c
@@ -1569,14 +1569,14 @@ static int do_load_driver_entry(DE_Handle *dh, char *path, char *name)
if ((res = erts_sys_ddll_load_driver_init(dh->handle,
&init_handle)) != ERL_DE_NO_ERROR) {
- erts_sys_ddll_close(dh->handle);
- return ERL_DE_LOAD_ERROR_NO_INIT;
+ res = ERL_DE_LOAD_ERROR_NO_INIT;
+ goto error;
}
dp = erts_sys_ddll_call_init(init_handle);
if (dp == NULL) {
- erts_sys_ddll_close(dh->handle);
- return ERL_DE_LOAD_ERROR_FAILED_INIT;
+ res = ERL_DE_LOAD_ERROR_FAILED_INIT;
+ goto error;
}
switch (dp->extended_marker) {
@@ -1594,24 +1594,27 @@ static int do_load_driver_entry(DE_Handle *dh, char *path, char *name)
|| dp->handle2 != NULL
|| dp->process_exit != NULL) {
/* Old driver; needs to be recompiled... */
- return ERL_DE_LOAD_ERROR_INCORRECT_VERSION;
+ res = ERL_DE_LOAD_ERROR_INCORRECT_VERSION;
+ goto error;
}
break;
case ERL_DRV_EXTENDED_MARKER:
if (ERL_DRV_EXTENDED_MAJOR_VERSION != dp->major_version
|| ERL_DRV_EXTENDED_MINOR_VERSION < dp->minor_version) {
/* Incompatible driver version */
- return ERL_DE_LOAD_ERROR_INCORRECT_VERSION;
+ res = ERL_DE_LOAD_ERROR_INCORRECT_VERSION;
+ goto error;
}
break;
default:
/* Old driver; needs to be recompiled... */
- return ERL_DE_LOAD_ERROR_INCORRECT_VERSION;
+ res = ERL_DE_LOAD_ERROR_INCORRECT_VERSION;
+ goto error;
}
if (strcmp(name, dp->driver_name) != 0) {
- erts_sys_ddll_close(dh->handle);
- return ERL_DE_LOAD_ERROR_BAD_NAME;
+ res = ERL_DE_LOAD_ERROR_BAD_NAME;
+ goto error;
}
erts_smp_atomic_init_nob(&(dh->refc), (erts_aint_t) 0);
dh->port_count = 0;
@@ -1626,11 +1629,14 @@ static int do_load_driver_entry(DE_Handle *dh, char *path, char *name)
*/
erts_free(ERTS_ALC_T_DDLL_HANDLE, dh->full_path);
dh->full_path = NULL;
- erts_sys_ddll_close(dh->handle);
- return ERL_DE_LOAD_ERROR_FAILED_INIT;
+ res = ERL_DE_LOAD_ERROR_FAILED_INIT;
+ goto error;
}
-
return ERL_DE_NO_ERROR;
+
+error:
+ erts_sys_ddll_close(dh->handle);
+ return res;
}
static int do_unload_driver_entry(DE_Handle *dh, Eterm *save_name)
diff --git a/erts/emulator/beam/erl_db_hash.c b/erts/emulator/beam/erl_db_hash.c
index e3380a57b2..038a667b06 100644
--- a/erts/emulator/beam/erl_db_hash.c
+++ b/erts/emulator/beam/erl_db_hash.c
@@ -312,15 +312,24 @@ struct ext_segment {
struct segment* segtab[1]; /* The segment table */
};
#define SIZEOF_EXTSEG(NSEGS) \
- (sizeof(struct ext_segment) - sizeof(struct segment*) + sizeof(struct segment*)*(NSEGS))
+ (offsetof(struct ext_segment,segtab) + sizeof(struct segment*)*(NSEGS))
-#ifdef DEBUG
-# include <stddef.h> /* offsetof */
+#if defined(DEBUG) || defined(VALGRIND)
# define EXTSEG(SEGTAB_PTR) \
((struct ext_segment*) (((char*)(SEGTAB_PTR)) - offsetof(struct ext_segment,segtab)))
#endif
+static ERTS_INLINE void SET_SEGTAB(DbTableHash* tb,
+ struct segment** segtab)
+{
+ erts_smp_atomic_set_wb(&tb->segtab, (erts_aint_t) segtab);
+#ifdef VALGRIND
+ tb->top_ptr_to_segment_with_active_segtab = EXTSEG(segtab);
+#endif
+}
+
+
/* How the table segments relate to each other:
ext_segment: ext_segment: "plain" segment
@@ -649,7 +658,8 @@ int db_create_hash(Process *p, DbTable *tbl)
erts_smp_atomic_init_nob(&tb->szm, SEGSZ_MASK);
erts_smp_atomic_init_nob(&tb->nactive, SEGSZ);
erts_smp_atomic_init_nob(&tb->fixdel, (erts_aint_t)NULL);
- erts_smp_atomic_init_nob(&tb->segtab, (erts_aint_t) alloc_ext_seg(tb,0,NULL)->segtab);
+ erts_smp_atomic_init_nob(&tb->segtab, (erts_aint_t)NULL);
+ SET_SEGTAB(tb, alloc_ext_seg(tb,0,NULL)->segtab);
tb->nsegs = NSEG_1;
tb->nslots = SEGSZ;
@@ -2357,7 +2367,7 @@ static int alloc_seg(DbTableHash *tb)
struct ext_segment* eseg;
eseg = (struct ext_segment*) SEGTAB(tb)[seg_ix-1];
MY_ASSERT(eseg!=NULL && eseg->s.is_ext_segment);
- erts_smp_atomic_set_wb(&tb->segtab, (erts_aint_t) eseg->segtab);
+ SET_SEGTAB(tb, eseg->segtab);
tb->nsegs = eseg->nsegs;
}
ASSERT(seg_ix < tb->nsegs);
@@ -2429,7 +2439,7 @@ static int free_seg(DbTableHash *tb, int free_records)
MY_ASSERT(newtop->s.is_ext_segment);
if (newtop->prev_segtab != NULL) {
/* Time to use a smaller segtab */
- erts_smp_atomic_set_wb(&tb->segtab, (erts_aint_t)newtop->prev_segtab);
+ SET_SEGTAB(tb, newtop->prev_segtab);
tb->nsegs = seg_ix;
ASSERT(tb->nsegs == EXTSEG(SEGTAB(tb))->nsegs);
}
@@ -2446,7 +2456,7 @@ static int free_seg(DbTableHash *tb, int free_records)
if (seg_ix > 0) {
if (seg_ix < tb->nsegs) SEGTAB(tb)[seg_ix] = NULL;
} else {
- erts_smp_atomic_set_wb(&tb->segtab, (erts_aint_t)NULL);
+ SET_SEGTAB(tb, NULL);
}
#endif
tb->nslots -= SEGSZ;
diff --git a/erts/emulator/beam/erl_db_hash.h b/erts/emulator/beam/erl_db_hash.h
index e0285fa5ed..23ac493118 100644
--- a/erts/emulator/beam/erl_db_hash.h
+++ b/erts/emulator/beam/erl_db_hash.h
@@ -58,6 +58,9 @@ typedef struct db_table_hash {
#ifdef ERTS_SMP
DbTableHashFineLocks* locks;
#endif
+#ifdef VALGRIND
+ struct ext_segment* top_ptr_to_segment_with_active_segtab;
+#endif
} DbTableHash;
diff --git a/erts/emulator/drivers/common/inet_drv.c b/erts/emulator/drivers/common/inet_drv.c
index 426917bd2c..c803e6b51e 100644
--- a/erts/emulator/drivers/common/inet_drv.c
+++ b/erts/emulator/drivers/common/inet_drv.c
@@ -8497,32 +8497,29 @@ static int tcp_deliver(tcp_descriptor* desc, int len)
}
while (len > 0) {
- int code = 0;
+ int code;
inet_input_count(INETP(desc), len);
/* deliver binary? */
if (len*4 >= desc->i_buf->orig_size*3) { /* >=75% */
+ code = tcp_reply_binary_data(desc, desc->i_buf,
+ (desc->i_ptr_start -
+ desc->i_buf->orig_bytes),
+ len);
+ if (code < 0)
+ return code;
+
/* something after? */
if (desc->i_ptr_start + len == desc->i_ptr) { /* no */
- code = tcp_reply_binary_data(desc, desc->i_buf,
- (desc->i_ptr_start -
- desc->i_buf->orig_bytes),
- len);
tcp_clear_input(desc);
}
else { /* move trail to beginning of a new buffer */
- ErlDrvBinary* bin;
+ ErlDrvBinary* bin = alloc_buffer(desc->i_bufsz);
char* ptr_end = desc->i_ptr_start + len;
int sz = desc->i_ptr - ptr_end;
- bin = alloc_buffer(desc->i_bufsz);
memcpy(bin->orig_bytes, ptr_end, sz);
-
- code = tcp_reply_binary_data(desc, desc->i_buf,
- (desc->i_ptr_start-
- desc->i_buf->orig_bytes),
- len);
free_buffer(desc->i_buf);
desc->i_buf = bin;
desc->i_ptr_start = desc->i_buf->orig_bytes;
@@ -8534,17 +8531,15 @@ static int tcp_deliver(tcp_descriptor* desc, int len)
code = tcp_reply_data(desc, desc->i_ptr_start, len);
/* XXX The buffer gets thrown away on error (code < 0) */
/* Windows needs workaround for this in tcp_inet_event... */
+ if (code < 0)
+ return code;
desc->i_ptr_start += len;
if (desc->i_ptr_start == desc->i_ptr)
tcp_clear_input(desc);
else
desc->i_remain = 0;
-
}
- if (code < 0)
- return code;
-
count++;
len = 0;
diff --git a/erts/emulator/valgrind/suppress.patched.3.6.0 b/erts/emulator/valgrind/suppress.patched.3.6.0
new file mode 100644
index 0000000000..2647949672
--- /dev/null
+++ b/erts/emulator/valgrind/suppress.patched.3.6.0
@@ -0,0 +1,307 @@
+# Valgrind suppression file updated to support the patched
+# Valgrind used in daily builds on ahmed.
+
+{
+ libc internal error
+ Memcheck:Addr8
+ obj:/lib64/ld-2.3.5.so
+}
+{
+ libc internal error
+ Memcheck:Addr8
+ fun:_dl_start
+}
+{
+ libc internal error
+ Memcheck:Addr8
+ fun:__libc_start_main
+ obj:*
+}
+{
+ libc internal error
+ Memcheck:Addr4
+ fun:__sigjmp_save
+ fun:__libc_start_main
+ obj:*
+}
+{
+ libc internal error
+ Memcheck:Addr8
+ fun:__sigsetjmp
+ fun:__libc_start_main
+ obj:*
+}
+{
+ Intentional error in testcase
+ Memcheck:Param
+ pipe(filedes)
+ fun:pipe
+ fun:chkio_drv_timeout
+}
+{
+ Intentional error in testcase
+ Memcheck:Param
+ pipe(filedes)
+ fun:pipe
+ fun:io_ready_exit_drv_control
+ fun:erts_port_control
+ fun:port_control_3
+ fun:process_main
+}
+{
+ Leak in libc putenv
+ Memcheck:Leak
+ fun:malloc
+ fun:realloc
+ fun:__add_to_environ
+ fun:putenv
+ fun:erts_sys_putenv
+ fun:os_putenv_2
+ fun:process_main
+}
+{
+Leak in libc putenv
+Memcheck:Leak
+fun:malloc
+fun:erts_sys_alloc
+...
+fun:erts_alloc
+fun:erts_sys_putenv
+fun:os_putenv_2
+fun:process_main
+}
+{
+ erronous warning
+ Memcheck:Leak
+ fun:malloc
+ fun:erts_sys_alloc
+ ...
+ fun:fix_core_alloc
+ fun:erts_init_fix_alloc
+ fun:erts_alloc_init
+ fun:early_init
+ fun:erl_start
+}
+{
+ pthread internal error
+ Memcheck:Param
+ futex(utime)
+ fun:__lll_mutex_unlock_wake
+}
+{
+ libc internal error
+ Memcheck:Param
+ socketcall.sendto(msg)
+ ...
+ fun:getifaddrs
+}
+{
+inet_drv; pointer inside allocated block
+Memcheck:Leak
+PossiblyLost
+fun:realloc
+fun:erts_sys_realloc
+...
+fun:erts_realloc_fnf
+fun:erts_bin_realloc_fnf
+fun:driver_realloc_binary
+}
+{
+inet_drv; pointer inside allocated block
+Memcheck:Leak
+PossiblyLost
+fun:malloc
+fun:erts_sys_alloc
+...
+fun:erts_alloc_fnf
+fun:erts_bin_drv_alloc_fnf
+fun:driver_alloc_binary
+}
+{
+pthread leak or erroneous valgrind warning
+Memcheck:Leak
+fun:calloc
+fun:allocate_dtv
+fun:_dl_allocate_tls
+fun:pthread_create@@GLIBC_2.2.5
+}
+{
+pthread leak or erroneous valgrind warning
+Memcheck:Leak
+fun:calloc
+fun:_dl_allocate_tls
+fun:pthread_create@@GLIBC_2.2.5
+}
+{
+zlib; ok according to zlib developers
+Memcheck:Cond
+fun:longest_match
+fun:deflate_slow
+fun:deflate
+}
+{
+zlib; ok according to zlib developers
+Memcheck:Cond
+fun:longest_match
+fun:deflate_fast
+fun:deflate
+}
+{
+zlib; ok accordnig to zlib (this one popped up with valgrind-3.6.0)
+Memcheck:Cond
+fun:deflate_slow
+fun:deflate
+fun:zlib_deflate
+fun:zlib_ctl
+}
+{
+No leak; pointer into block
+Memcheck:Leak
+fun:malloc
+fun:erts_sys_alloc
+...
+fun:erts_alloc
+fun:erts_init_scheduling
+fun:erl_init
+fun:erl_start
+fun:main
+}
+{
+No leak; pointer into block
+Memcheck:Leak
+PossiblyLost
+fun:malloc
+fun:erts_sys_alloc
+...
+fun:erts_alloc
+fun:init_db
+fun:erl_init
+fun:erl_start
+fun:main
+}
+{
+No leak; sometimes pointer into block
+Memcheck:Leak
+PossiblyLost
+fun:malloc
+fun:erts_sys_alloc
+...
+fun:erts_alloc_fnf
+fun:driver_alloc
+fun:get_bufstk
+fun:alloc_buffer
+}
+{
+ Crypto internal...
+Memcheck:Cond
+obj:*/crypto.valgrind.*
+}
+{
+ Crypto internal...
+Memcheck:Cond
+obj:*/libcrypto.*
+}
+{
+ Crypto internal...
+Memcheck:Cond
+obj:*/openssl.*
+}
+{
+ Crypto internal...
+Memcheck:Cond
+obj:*/ssleay.*
+}
+{
+ Crypto internal...
+Memcheck:Value8
+obj:*/crypto.valgrind.*
+}
+{
+ Crypto internal...
+Memcheck:Value8
+obj:*/libcrypto.*
+}
+{
+ Crypto internal...
+Memcheck:Value8
+obj:*/openssl.*
+}
+{
+ Crypto internal...
+Memcheck:Value8
+obj:*/ssleay.*
+}
+{
+ Crypto internal...
+ Memcheck:Cond
+ fun:memset
+ fun:BN_lshift
+ fun:BN_div
+ fun:BN_MONT_CTX_set
+ fun:BN_is_prime_fasttest_ex
+ fun:BN_generate_prime_ex
+ fun:DH_generate_parameters_ex
+ fun:DH_generate_parameters
+ fun:dh_generate_parameters_nif
+ fun:process_main
+ fun:sched_thread_func
+ fun:thr_wrapper
+}
+{
+ Crypto internal...
+ Memcheck:Cond
+ fun:memset
+ fun:BN_lshift
+ fun:BN_div
+ fun:BN_nnmod
+ fun:BN_mod_inverse
+ fun:BN_MONT_CTX_set
+ fun:BN_is_prime_fasttest_ex
+ fun:BN_generate_prime_ex
+ fun:DH_generate_parameters_ex
+ fun:DH_generate_parameters
+ fun:dh_generate_parameters_nif
+ fun:process_main
+}
+{
+ Crypto internal...
+ Memcheck:Value8
+ fun:BN_mod_exp_mont_consttime
+ fun:generate_key
+ fun:dh_generate_key_nif
+ fun:process_main
+ fun:sched_thread_func
+ fun:thr_wrapper
+ fun:start_thread
+ fun:clone
+}
+
+{
+erts_bits_init_state; Why is this needed?
+Memcheck:Leak
+PossiblyLost
+fun:malloc
+fun:erts_sys_alloc
+...
+fun:erts_alloc
+fun:erts_bits_init_state
+fun:erts_init_scheduling
+fun:erl_init
+fun:erl_start
+fun:main
+}
+
+{
+Prebuilt constant terms in os_info_init
+Memcheck:Leak
+PossiblyLost
+fun:malloc
+fun:erts_sys_alloc
+...
+fun:erts_alloc
+fun:os_info_init
+fun:erts_bif_info_init
+fun:erl_init
+fun:erl_start
+fun:main
+}
diff --git a/erts/emulator/valgrind/suppress.standard b/erts/emulator/valgrind/suppress.standard
new file mode 100644
index 0000000000..d759038c97
--- /dev/null
+++ b/erts/emulator/valgrind/suppress.standard
@@ -0,0 +1,268 @@
+{
+ libc internal error
+ Memcheck:Addr8
+ obj:/lib64/ld-2.3.5.so
+}
+{
+ libc internal error
+ Memcheck:Addr8
+ fun:_dl_start
+}
+{
+ libc internal error
+ Memcheck:Addr8
+ fun:__libc_start_main
+ obj:*
+}
+{
+ libc internal error
+ Memcheck:Addr4
+ fun:__sigjmp_save
+ fun:__libc_start_main
+ obj:*
+}
+{
+ libc internal error
+ Memcheck:Addr8
+ fun:__sigsetjmp
+ fun:__libc_start_main
+ obj:*
+}
+{
+ Intentional error in testcase
+ Memcheck:Param
+ pipe(filedes)
+ fun:pipe
+ fun:chkio_drv_timeout
+}
+{
+ Intentional error in testcase
+ Memcheck:Param
+ pipe(filedes)
+ fun:pipe
+ fun:io_ready_exit_drv_control
+ fun:erts_port_control
+ fun:port_control_3
+ fun:process_main
+}
+{
+ Leak in libc putenv
+ Memcheck:Leak
+ fun:malloc
+ fun:realloc
+ fun:__add_to_environ
+ fun:putenv
+ fun:erts_sys_putenv
+ fun:os_putenv_2
+ fun:process_main
+}
+{
+Leak in libc putenv
+Memcheck:Leak
+fun:malloc
+fun:erts_sys_alloc
+...
+fun:erts_alloc
+fun:erts_sys_putenv
+fun:os_putenv_2
+fun:process_main
+}
+{
+ erronous warning
+ Memcheck:Leak
+ fun:malloc
+ fun:erts_sys_alloc
+ fun:fix_core_alloc
+ fun:erts_init_fix_alloc
+ fun:erts_alloc_init
+ fun:early_init
+ fun:erl_start
+}
+{
+ pthread internal error
+ Memcheck:Param
+ futex(utime)
+ fun:__lll_mutex_unlock_wake
+}
+{
+ libc internal error
+ Memcheck:Param
+ socketcall.sendto(msg)
+ ...
+ fun:getifaddrs
+}
+{
+inet_drv; pointer inside allocated block
+Memcheck:Leak
+fun:realloc
+fun:erts_sys_realloc
+...
+fun:erts_realloc_fnf
+fun:erts_bin_realloc_fnf
+fun:driver_realloc_binary
+}
+{
+inet_drv; pointer inside allocated block
+Memcheck:Leak
+fun:malloc
+fun:erts_sys_alloc
+...
+fun:erts_alloc_fnf
+fun:erts_bin_drv_alloc_fnf
+fun:driver_alloc_binary
+}
+{
+pthread leak or erroneous valgrind warning
+Memcheck:Leak
+fun:calloc
+fun:allocate_dtv
+fun:_dl_allocate_tls
+fun:pthread_create@@GLIBC_2.2.5
+}
+{
+zlib; ok according to zlib developers
+Memcheck:Cond
+fun:longest_match
+fun:deflate_slow
+fun:deflate
+}
+{
+zlib; ok according to zlib developers
+Memcheck:Cond
+fun:longest_match
+fun:deflate_fast
+fun:deflate
+}
+{
+No leak; pointer into block
+Memcheck:Leak
+fun:malloc
+fun:erts_sys_alloc
+...
+fun:erts_alloc
+fun:erts_init_scheduling
+fun:erl_init
+fun:erl_start
+fun:main
+}
+{
+No leak; pointer into block
+Memcheck:Leak
+fun:malloc
+fun:erts_sys_alloc
+...
+fun:erts_alloc
+fun:init_db
+fun:erl_init
+fun:erl_start
+fun:main
+}
+{
+No leak; sometimes pointer into block
+Memcheck:Leak
+fun:malloc
+fun:erts_sys_alloc
+...
+fun:erts_alloc_fnf
+fun:driver_alloc
+fun:get_bufstk
+fun:alloc_buffer
+}
+{
+ Crypto internal...
+Memcheck:Cond
+obj:*/crypto.valgrind.*
+}
+{
+ Crypto internal...
+Memcheck:Cond
+obj:*/libcrypto.*
+}
+{
+ Crypto internal...
+Memcheck:Cond
+obj:*/openssl.*
+}
+{
+ Crypto internal...
+Memcheck:Cond
+obj:*/ssleay.*
+}
+{
+ Crypto internal...
+Memcheck:Value8
+obj:*/crypto.valgrind.*
+}
+{
+ Crypto internal...
+Memcheck:Value8
+obj:*/libcrypto.*
+}
+{
+ Crypto internal...
+Memcheck:Value8
+obj:*/openssl.*
+}
+{
+ Crypto internal...
+Memcheck:Value8
+obj:*/ssleay.*
+}
+{
+ Crypto internal...
+ Memcheck:Cond
+ fun:memset
+ fun:BN_lshift
+ fun:BN_div
+ fun:BN_MONT_CTX_set
+ fun:BN_is_prime_fasttest_ex
+ fun:BN_generate_prime_ex
+ fun:DH_generate_parameters_ex
+ fun:DH_generate_parameters
+ fun:dh_generate_parameters_nif
+ fun:process_main
+ fun:sched_thread_func
+ fun:thr_wrapper
+}
+{
+ Crypto internal...
+ Memcheck:Cond
+ fun:memset
+ fun:BN_lshift
+ fun:BN_div
+ fun:BN_nnmod
+ fun:BN_mod_inverse
+ fun:BN_MONT_CTX_set
+ fun:BN_is_prime_fasttest_ex
+ fun:BN_generate_prime_ex
+ fun:DH_generate_parameters_ex
+ fun:DH_generate_parameters
+ fun:dh_generate_parameters_nif
+ fun:process_main
+}
+{
+ Crypto internal...
+ Memcheck:Value8
+ fun:BN_mod_exp_mont_consttime
+ fun:generate_key
+ fun:dh_generate_key_nif
+ fun:process_main
+ fun:sched_thread_func
+ fun:thr_wrapper
+ fun:start_thread
+ fun:clone
+}
+
+{
+Prebuilt constant terms in os_info_init (PossiblyLost)
+Memcheck:Leak
+fun:malloc
+fun:erts_sys_alloc
+...
+fun:erts_alloc
+fun:os_info_init
+fun:erts_bif_info_init
+fun:erl_init
+fun:erl_start
+fun:main
+}