diff options
Diffstat (limited to 'erts')
32 files changed, 576 insertions, 187 deletions
diff --git a/erts/configure.in b/erts/configure.in index f66110b98b..40b335849c 100644 --- a/erts/configure.in +++ b/erts/configure.in @@ -4821,6 +4821,26 @@ if test "x$GCC" = xyes; then fi dnl ---------------------------------------------------------------------- +dnl Enable -fsanitize= flags. +dnl ---------------------------------------------------------------------- + +m4_define(DEFAULT_SANITIZERS, [address,undefined]) +AC_ARG_ENABLE( + sanitizers, + AS_HELP_STRING( + [--enable-sanitizers@<:@=comma-separated list of sanitizers@:>@], + [Default=DEFAULT_SANITIZERS]), +[ +case "$enableval" in + no) sanitizers= ;; + yes) sanitizers="-fsanitize=DEFAULT_SANITIZERS" ;; + *) sanitizers="-fsanitize=$enableval" ;; +esac +CFLAGS="$CFLAGS $sanitizers" +LDFLAGS="$LDFLAGS $sanitizers" +]) + +dnl ---------------------------------------------------------------------- dnl Output the result. dnl ---------------------------------------------------------------------- diff --git a/erts/doc/src/crash_dump.xml b/erts/doc/src/crash_dump.xml index c59741f250..d3de29b876 100644 --- a/erts/doc/src/crash_dump.xml +++ b/erts/doc/src/crash_dump.xml @@ -85,20 +85,22 @@ operating system.</p> <list type="bulleted"> <item>"<em><A></em>: Cannot allocate <em><N></em> - bytes of memory (of type "<em><T></em>")." - The system - has run out of memory. <A> is the allocator that failed - to allocate memory, <N> is the number of bytes that - <A> tried to allocate, and <T> is the memory block - type that the memory was needed for. The most common case is - that a process stores huge amounts of data. In this case - <T> is most often <c><![CDATA[heap]]></c>, <c><![CDATA[old_heap]]></c>, - <c><![CDATA[heap_frag]]></c>, or <c><![CDATA[binary]]></c>. For more information on - allocators see - <seealso marker="erts_alloc">erts_alloc(3)</seealso>.</item> + bytes of memory (of type "<em><T></em>", thread + <em><I></em>em>)." - The system has run out of memory. <A> + is the allocator that failed to allocate memory, <N> is the + number of bytes that <A> tried to allocate, <T> is the + memory block type that the memory was needed for, and <I> is the + thread identifier. The most common case is that a process stores huge + amounts of data. In this case <T> is most often + <c><![CDATA[heap]]></c>, <c><![CDATA[old_heap]]></c>, + <c><![CDATA[heap_frag]]></c>, or <c><![CDATA[binary]]></c>. + For more information on allocators see + <seealso marker="erts_alloc">erts_alloc(3)</seealso>.</item> <item>"<em><A></em>: Cannot reallocate <em><N></em> - bytes of memory (of type "<em><T></em>")." - Same as - above with the exception that memory was being reallocated - instead of being allocated when the system ran out of memory.</item> + bytes of memory (of type "<em><T></em>", thread + <em><I></em>em>)." - Same as above with the exception that memory + was being reallocated instead of being allocated when the system ran + out of memory.</item> <item>"Unexpected op code <em>N</em>" - Error in compiled code, <c><![CDATA[beam]]></c> file damaged or error in the compiler.</item> <item>"Module <em>Name</em> undefined" <c><![CDATA[|]]></c> "Function @@ -246,6 +248,9 @@ <tag><em>Last scheduled in for | Current call</em></tag> <item>The current function of the process. These fields will not always exist.</item> + <tag><em>Run queue</em></tag> + <item>The identifier of the scheduler run queue in which the process is + running.</item> <tag><em>Spawned by</em></tag> <item>The parent of the process, i.e. the process which executed <c><![CDATA[spawn]]></c> or <c><![CDATA[spawn_link]]></c>.</item> diff --git a/erts/doc/src/epmd.xml b/erts/doc/src/epmd.xml index 963d35c3c8..25f819ab50 100644 --- a/erts/doc/src/epmd.xml +++ b/erts/doc/src/epmd.xml @@ -58,12 +58,12 @@ of the IP address and a port number. The name of the node is an atom on the form of <c><![CDATA[Name@Node]]></c>. The job of the <c><![CDATA[epmd]]></c> daemon is to keep track of which - node name listens on which address. Hence, <c><![CDATA[epmd]]></c> map + node name listens on which address. Hence, <c><![CDATA[epmd]]></c> maps symbolic node names to machine addresses.</p> <p>The TCP/IP <c>epmd</c> daemon actually only keeps track of - the <c>Name</c> (first) part of an Erlang node name, the <c>Host</c> - part (whatever is after the <c><![CDATA[@]]></c> is implicit in the + the <c>Name</c> (first) part of an Erlang node name. The <c>Host</c> + part (whatever is after the <c><![CDATA[@]]></c>) is implicit in the node name where the <c>epmd</c> daemon was actually contacted, as is the IP address where the Erlang node can be reached. Consistent and correct TCP naming services are @@ -77,12 +77,12 @@ <p>The daemon is started automatically by the <c>erl</c> command if the node is to be distributed and there is no running instance present. If automatically launched, - environment variables has to be used to alter the behavior of + environment variables have to be used to alter the behavior of the daemon. See the <seealso marker="#environment_variables">Environment variables</seealso> section below.</p> - <p>If the -daemon argument is not given, the + <p>If the -daemon argument is not given, <c><![CDATA[epmd]]></c> runs as a normal program with the controlling terminal of the shell in which it is started. Normally, it should run as a daemon.</p> @@ -122,7 +122,7 @@ comma-separated list of IP addresses and on the loopback address (which is implicitly added to the list if it has not been specified). This can also be set using the - <c><![CDATA[ERL_EPMD_ADDRESS]]></c> environment variable, see the + <c><![CDATA[ERL_EPMD_ADDRESS]]></c> environment variable. See the section <seealso marker="#environment_variables">Environment variables</seealso> below.</p> </item> @@ -130,7 +130,7 @@ <item> <p>Let this instance of epmd listen to another TCP port than default 4369. This can also be set using the - <c><![CDATA[ERL_EPMD_PORT]]></c> environment variable, see the + <c><![CDATA[ERL_EPMD_PORT]]></c> environment variable. See the section <seealso marker="#environment_variables">Environment variables</seealso> below</p> </item> @@ -153,7 +153,7 @@ <p>With relaxed command checking, the <c>epmd</c> daemon can be killed from the localhost with i.e. <c>epmd -kill</c> even if there are active nodes registered. Normally only daemons with an empty node database can be killed with the <c>epmd -kill</c> command.</p> </item> <item> - <p>The <c>epmd -stop</c> command (and the corresponding messages to epmd, as can be given using <c>erl_interface/ei</c>) is normally always ignored, as it opens up for strange situation when two nodes of the same name can be alive at the same time. A node unregisters itself by just closing the connection to epmd, why the <c>stop</c> command was only intended for use in debugging situations.</p> + <p>The <c>epmd -stop</c> command (and the corresponding messages to epmd, as can be given using <c>erl_interface/ei</c>) is normally always ignored, as it opens up the possibility of a strange situation where two nodes of the same name can be alive at the same time. A node unregisters itself by just closing the connection to epmd, which is why the <c>stop</c> command was only intended for use in debugging situations.</p> <p>With relaxed command checking enabled, you can forcibly unregister live nodes.</p> </item> </list> @@ -166,7 +166,7 @@ <section> <marker id="debug_flags"></marker> <title>DbgExtra options</title> - <p>These options are purely for debugging and testing epmd clients, they should not be used in normal operation.</p> + <p>These options are purely for debugging and testing epmd clients. They should not be used in normal operation.</p> <taglist> <tag><c><![CDATA[-packet_timeout Seconds]]></c></tag> @@ -177,9 +177,9 @@ </item> <tag><c><![CDATA[-delay_accept Seconds]]></c></tag> <item> - <p>To simulate a busy server you can insert a delay between epmd - gets notified about that a new connection is requested and - when the connections gets accepted.</p> + <p>To simulate a busy server you can insert a delay between when epmd + gets notified that a new connection is requested and + when the connection gets accepted.</p> </item> <tag><c><![CDATA[-delay_write Seconds]]></c></tag> <item> @@ -191,15 +191,15 @@ <section> <marker id="interactive_flags"></marker> <title>Interactive options</title> - <p>These options make <c>epmd</c> run as an interactive command displaying the results of sending queries ta an already running instance of <c>epmd</c>. The epmd contacted is always on the local node, but the <c>-port</c> option can be used to select between instances if several are running using different port on the host.</p> + <p>These options make <c>epmd</c> run as an interactive command, displaying the results of sending queries to an already running instance of <c>epmd</c>. The epmd contacted is always on the local node, but the <c>-port</c> option can be used to select between instances if several are running using different ports on the host.</p> <taglist> <tag><c><![CDATA[-port No]]></c></tag> <item> <p>Contacts the <c>epmd</c> listening on the given TCP port number (default 4369). This can also be set using the - <c><![CDATA[ERL_EPMD_PORT]]></c> environment variable, see the + <c><![CDATA[ERL_EPMD_PORT]]></c> environment variable. See the section <seealso marker="#environment_variables">Environment - variables</seealso> below</p> + variables</seealso> below.</p> </item> <tag><c><![CDATA[-names]]></c></tag> <item> @@ -210,7 +210,7 @@ <p>Kill the currently running <c>epmd</c>.</p> <p>Killing the running <c>epmd</c> is only allowed if <c>epmd - -names</c> show an empty database or + -names</c> shows an empty database or <c>-relaxed_command_check</c> was given when the running instance of <c>epmd</c> was started. Note that <c>-relaxed_command_check</c> is given when starting the @@ -228,7 +228,7 @@ <p>This command can only be used when contacting <c>epmd</c> instances started with the <c>-relaxed_command_check</c> flag. Note that relaxed command checking has to be enabled for - the <c>epmd</c> daemon contacted, When running epmd + the <c>epmd</c> daemon contacted. When running epmd interactively, <c>-relaxed_command_check</c> has no effect.</p> </item> @@ -259,7 +259,7 @@ <item> <p>If set prior to start, the <c>epmd</c> daemon will behave as if the <c>-relaxed_command_check</c> option was given at - start-up. If consequently setting this option before starting + start-up. Consequently, if this option is set before starting the Erlang virtual machine, the automatically started <c>epmd</c> will accept the <c>-kill</c> and <c>-stop</c> commands without restrictions.</p> @@ -287,8 +287,8 @@ remote hosts. However, only the query commands are answered (and acted upon) if the query comes from a remote host. It is always an error to try to register a nodename if the client is not a process - located on the same host as the <c>epmd</c> instance is running on, - why such requests are considered hostile and the connection is + located on the same host as the <c>epmd</c> instance is running on- + such requests are considered hostile and the connection is immediately closed.</p> <p>The queries accepted from remote nodes are:</p> @@ -307,3 +307,4 @@ </comref> + diff --git a/erts/doc/src/erl.xml b/erts/doc/src/erl.xml index f8f4d14436..f856b9ab86 100644 --- a/erts/doc/src/erl.xml +++ b/erts/doc/src/erl.xml @@ -851,6 +851,19 @@ </p> </item> <tag><marker id="+SDio"><c><![CDATA[+SDio IOSchedulers]]></c></marker></tag> + <item> + <p>Sets the number of dirty I/O scheduler threads to create when threading + support has been enabled. The valid range is 0-1024. By default, the number + of dirty I/O scheduler threads created is 10, same as the default number of + threads in the <seealso marker="#async_thread_pool_size">async thread pool + </seealso>. + </p> + <p>This option is ignored if the emulator doesn't have threading support + enabled. Currently, <em>this option is experimental</em> and is supported only + if the emulator was configured and built with support for dirty schedulers + enabled (it's disabled by default). + </p> + </item> <tag><c><![CDATA[+sFlag Value]]></c></tag> <item> <p>Scheduling specific flags.</p> @@ -1173,7 +1186,7 @@ utilization. </p> </item> - <tag><marker id="+swct"><c>+sws very_eager|eager|medium|lazy|very_lazy</c></marker></tag> + <tag><marker id="+swct"><c>+swct very_eager|eager|medium|lazy|very_lazy</c></marker></tag> <item> <p> Set scheduler wake cleanup threshold. Default is <c>medium</c>. diff --git a/erts/doc/src/notes.xml b/erts/doc/src/notes.xml index 086d29c668..5c4bb3ed25 100644 --- a/erts/doc/src/notes.xml +++ b/erts/doc/src/notes.xml @@ -940,6 +940,27 @@ Thanks to Matwey V. Kornilov</p> <p> Own Id: OTP-11829</p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 5.10.4.1</title> + + <section><title>Known Bugs and Problems</title> + <list> + <item> + <p> + When using gen_tcp:connect and the <c>fd</c> option with + <c>port</c> and/or <c>ip</c>, the <c>port</c> and + <c>ip</c> options were ignored. This has been fixed so + that if <c>port</c> and/or <c>ip</c> is specified + together with <c>fd</c> a bind is requested for that + <c>fd</c>. If <c>port</c> and/or <c>ip</c> is not + specified bind will not be called.</p> + <p> + Own Id: OTP-12061</p> </item> </list> </section> diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c index fcbeb6cf5c..f3c05d047d 100644 --- a/erts/emulator/beam/bif.c +++ b/erts/emulator/beam/bif.c @@ -1869,6 +1869,7 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend, Eterm *refp) { } else if (is_external_pid(to)) { dep = external_pid_dist_entry(to); if(dep == erts_this_dist_entry) { +#if DEBUG erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf(); erts_dsprintf(dsbufp, "Discarding message %T from %T to %T in an old " @@ -1879,6 +1880,7 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend, Eterm *refp) { external_pid_creation(to), erts_this_node->creation); erts_send_error_to_logger(p->group_leader, dsbufp); +#endif return 0; } return remote_send(p, dep, to, to, msg, suspend); @@ -1912,6 +1914,7 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend, Eterm *refp) { } else if (is_external_port(to) && (external_port_dist_entry(to) == erts_this_dist_entry)) { +#if DEBUG erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf(); erts_dsprintf(dsbufp, "Discarding message %T from %T to %T in an old " @@ -1922,6 +1925,7 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend, Eterm *refp) { external_port_creation(to), erts_this_node->creation); erts_send_error_to_logger(p->group_leader, dsbufp); +#endif return 0; } else if (is_internal_port(to)) { int ret_val; diff --git a/erts/emulator/beam/big.c b/erts/emulator/beam/big.c index 41a041eba6..e62caa6b22 100644 --- a/erts/emulator/beam/big.c +++ b/erts/emulator/beam/big.c @@ -274,6 +274,9 @@ _b = _b << _s; \ _vn1 = _b >> H_EXP; \ _vn0 = _b & LO_MASK; \ + /* Sometimes _s is 0 which triggers undefined behaviour for the \ + (_a0>>(D_EXP-_s)) shift, but this is ok because the \ + & -s will make it all to 0 later anyways. */ \ _un32 = (_a1 << _s) | ((_a0>>(D_EXP-_s)) & (-_s >> (D_EXP-1))); \ _un10 = _a0 << _s; \ _un1 = _un10 >> H_EXP; \ @@ -1506,13 +1509,15 @@ Eterm uword_to_big(UWord x, Eterm *y) */ Eterm small_to_big(Sint x, Eterm *y) { + Uint xu; if (x >= 0) { + xu = x; *y = make_pos_bignum_header(1); } else { - x = -x; + xu = -(Uint)x; *y = make_neg_bignum_header(1); } - BIG_DIGIT(y, 0) = x; + BIG_DIGIT(y, 0) = xu; return make_big(y); } @@ -1540,21 +1545,24 @@ Eterm erts_uint64_to_big(Uint64 x, Eterm **hpp) Eterm erts_sint64_to_big(Sint64 x, Eterm **hpp) { Eterm *hp = *hpp; + Uint64 ux; int neg; - if (x >= 0) + if (x >= 0) { neg = 0; + ux = x; + } else { neg = 1; - x = -x; + ux = -(Uint64)x; } #if defined(ARCH_32) || HALFWORD_HEAP - if (x >= (((Uint64) 1) << 32)) { + if (ux >= (((Uint64) 1) << 32)) { if (neg) *hp = make_neg_bignum_header(2); else *hp = make_pos_bignum_header(2); - BIG_DIGIT(hp, 0) = (Uint) (x & ((Uint) 0xffffffff)); - BIG_DIGIT(hp, 1) = (Uint) ((x >> 32) & ((Uint) 0xffffffff)); + BIG_DIGIT(hp, 0) = (Uint) (ux & ((Uint) 0xffffffff)); + BIG_DIGIT(hp, 1) = (Uint) ((ux >> 32) & ((Uint) 0xffffffff)); *hpp += 3; } else @@ -1564,7 +1572,7 @@ Eterm erts_sint64_to_big(Sint64 x, Eterm **hpp) *hp = make_neg_bignum_header(1); else *hp = make_pos_bignum_header(1); - BIG_DIGIT(hp, 0) = (Uint) x; + BIG_DIGIT(hp, 0) = (Uint) ux; *hpp += 2; } return make_big(hp); diff --git a/erts/emulator/beam/big.h b/erts/emulator/beam/big.h index d80111822e..da31876d75 100644 --- a/erts/emulator/beam/big.h +++ b/erts/emulator/beam/big.h @@ -101,7 +101,7 @@ typedef Uint dsize_t; /* Vector size type */ #define ERTS_SINT64_HEAP_SIZE(X) \ (IS_SSMALL((X)) \ ? 0 \ - : ERTS_UINT64_BIG_HEAP_SIZE__((X) >= 0 ? (X) : -(X))) + : ERTS_UINT64_BIG_HEAP_SIZE__((X) >= 0 ? (X) : -(Uint64)(X))) #define ERTS_UINT64_HEAP_SIZE(X) \ (IS_USMALL(0, (X)) ? 0 : ERTS_UINT64_BIG_HEAP_SIZE__((X))) diff --git a/erts/emulator/beam/break.c b/erts/emulator/beam/break.c index 7d4f52ee23..08265b590d 100644 --- a/erts/emulator/beam/break.c +++ b/erts/emulator/beam/break.c @@ -256,6 +256,7 @@ print_process_info(int to, void *to_arg, Process *p) p->current[1], p->current[2]); } + erts_print(to, to_arg, "Run queue: %d\n", erts_get_runq_proc(p)->ix); erts_print(to, to_arg, "Spawned by: %T\n", p->parent); approx_started = (time_t) p->approx_started; diff --git a/erts/emulator/beam/erl_alloc.c b/erts/emulator/beam/erl_alloc.c index 05ac24e04d..90cd227fae 100644 --- a/erts/emulator/beam/erl_alloc.c +++ b/erts/emulator/beam/erl_alloc.c @@ -1873,8 +1873,8 @@ erts_alc_fatal_error(int error, int func, ErtsAlcType_t n, ...) size = va_arg(argp, Uint); va_end(argp); erl_exit(1, - "%s: Cannot %s %lu bytes of memory (of type \"%s\").\n", - allctr_str, op, size, t_str); + "%s: Cannot %s %lu bytes of memory (of type \"%s\", thread %d).\n", + allctr_str, op, size, t_str, ERTS_ALC_GET_THR_IX()); break; } case ERTS_ALC_E_NOALLCTR: diff --git a/erts/emulator/beam/erl_alloc_util.c b/erts/emulator/beam/erl_alloc_util.c index 45f0cc4312..a4e164bf51 100644 --- a/erts/emulator/beam/erl_alloc_util.c +++ b/erts/emulator/beam/erl_alloc_util.c @@ -3274,6 +3274,15 @@ create_carrier(Allctr_t *allctr, Uint umem_sz, UWord flags) ASSERT(!(flags & CFLG_FORCE_MSEG && flags & CFLG_FORCE_SYS_ALLOC)); + if (umem_sz > (ERTS_UINT_MAX - ERTS_UINT_MAX/100)) { + /* Do an overly conservative _overflow_ check here so we don't + * have to deal with it from here on. I guess we could be more accurate + * but I don't think the need to allocate over 99% of the address space + * will ever arise on any machine, neither 32 nor 64 bit. + */ + return NULL; + } + blk_sz = UMEMSZ2BLKSZ(allctr, umem_sz); #ifdef ERTS_SMP diff --git a/erts/emulator/beam/erl_bif_binary.c b/erts/emulator/beam/erl_bif_binary.c index 7e0e825a0d..3bf78adce7 100644 --- a/erts/emulator/beam/erl_bif_binary.c +++ b/erts/emulator/beam/erl_bif_binary.c @@ -1324,9 +1324,9 @@ static int parse_match_opts_list(Eterm l, Eterm bin, Uint *posp, Uint *endp) goto badarg; } if (len < 0) { - Sint lentmp = -len; + Uint lentmp = -(Uint)len; /* overflow */ - if (lentmp == len || lentmp < 0 || -lentmp != len) { + if ((Sint)lentmp < 0) { goto badarg; } len = lentmp; @@ -1555,9 +1555,9 @@ BIF_RETTYPE erts_binary_part(Process *p, Eterm binary, Eterm epos, Eterm elen) goto badarg; } if (len < 0) { - Sint lentmp = -len; + Uint lentmp = -(Uint)len; /* overflow */ - if (lentmp == len || lentmp < 0 || -lentmp != len) { + if ((Sint)lentmp < 0) { goto badarg; } len = lentmp; @@ -1644,9 +1644,9 @@ BIF_RETTYPE erts_gc_binary_part(Process *p, Eterm *reg, Eterm live, int range_is goto badarg; } if (len < 0) { - Sint lentmp = -len; + Uint lentmp = -(Uint)len; /* overflow */ - if (lentmp == len || lentmp < 0 || -lentmp != len) { + if ((Sint)lentmp < 0) { goto badarg; } len = lentmp; @@ -2213,9 +2213,9 @@ static BIF_RETTYPE binary_bin_to_list_common(Process *p, goto badarg; } if (len < 0) { - Sint lentmp = -len; + Uint lentmp = -(Uint)len; /* overflow */ - if (lentmp == len || lentmp < 0 || -lentmp != len) { + if ((Sint)lentmp < 0) { goto badarg; } len = lentmp; diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c index faa2655c11..6efe9d9550 100644 --- a/erts/emulator/beam/erl_bif_info.c +++ b/erts/emulator/beam/erl_bif_info.c @@ -3875,16 +3875,19 @@ static Eterm lcnt_build_lock_stats_term(Eterm **hpp, Uint *szp, erts_lcnt_lock_s Uint tries = 0, colls = 0; unsigned long timer_s = 0, timer_ns = 0, timer_n = 0; unsigned int line = 0; + unsigned int i; Eterm af, uil; Eterm uit, uic; Eterm uits, uitns, uitn; Eterm tt, tstat, tloc, t; + Eterm thist, vhist[ERTS_LCNT_HISTOGRAM_SLOT_SIZE]; /* term: - * [{{file, line}, {tries, colls, {seconds, nanoseconds, n_blocks}}}] + * [{{file, line}, {tries, colls, {seconds, nanoseconds, n_blocks}}, + * { .. histogram .. }] */ - + tries = (Uint) ethr_atomic_read(&stats->tries); colls = (Uint) ethr_atomic_read(&stats->colls); @@ -3893,23 +3896,27 @@ static Eterm lcnt_build_lock_stats_term(Eterm **hpp, Uint *szp, erts_lcnt_lock_s timer_ns = stats->timer.ns; timer_n = stats->timer_n; - af = erts_atom_put(stats->file, strlen(stats->file), ERTS_ATOM_ENC_LATIN1, 1); + af = erts_atom_put((byte *)stats->file, strlen(stats->file), ERTS_ATOM_ENC_LATIN1, 1); uil = erts_bld_uint( hpp, szp, line); tloc = erts_bld_tuple(hpp, szp, 2, af, uil); - uit = erts_bld_uint( hpp, szp, tries); - uic = erts_bld_uint( hpp, szp, colls); - + uit = erts_bld_uint( hpp, szp, tries); + uic = erts_bld_uint( hpp, szp, colls); + uits = erts_bld_uint( hpp, szp, timer_s); uitns = erts_bld_uint( hpp, szp, timer_ns); uitn = erts_bld_uint( hpp, szp, timer_n); tt = erts_bld_tuple(hpp, szp, 3, uits, uitns, uitn); tstat = erts_bld_tuple(hpp, szp, 3, uit, uic, tt); - - t = erts_bld_tuple(hpp, szp, 2, tloc, tstat); - - res = erts_bld_cons( hpp, szp, t, res); + + for(i = 0; i < ERTS_LCNT_HISTOGRAM_SLOT_SIZE; i++) { + vhist[i] = erts_bld_uint(hpp, szp, stats->hist.ns[i]); + } + thist = erts_bld_tuplev(hpp, szp, ERTS_LCNT_HISTOGRAM_SLOT_SIZE, vhist); + + t = erts_bld_tuple(hpp, szp, 3, tloc, tstat, thist); + res = erts_bld_cons( hpp, szp, t, res); return res; } @@ -3930,13 +3937,13 @@ static Eterm lcnt_build_lock_term(Eterm **hpp, Uint *szp, erts_lcnt_lock_t *lock ASSERT(ltype); - type = erts_atom_put(ltype, strlen(ltype), ERTS_ATOM_ENC_LATIN1, 1); - name = erts_atom_put(lock->name, strlen(lock->name), ERTS_ATOM_ENC_LATIN1, 1); + type = erts_atom_put((byte *)ltype, strlen(ltype), ERTS_ATOM_ENC_LATIN1, 1); + name = erts_atom_put((byte *)lock->name, strlen(lock->name), ERTS_ATOM_ENC_LATIN1, 1); if (lock->flag & ERTS_LCNT_LT_ALLOC) { /* use allocator types names as id's for allocator locks */ ltype = (char *) ERTS_ALC_A2AD(signed_val(lock->id)); - id = erts_atom_put(ltype, strlen(ltype), ERTS_ATOM_ENC_LATIN1, 1); + id = erts_atom_put((byte *)ltype, strlen(ltype), ERTS_ATOM_ENC_LATIN1, 1); } else if (lock->flag & ERTS_LCNT_LT_PROCLOCK) { /* use registered names as id's for process locks if available */ proc = erts_proc_lookup(lock->id); @@ -3947,16 +3954,15 @@ static Eterm lcnt_build_lock_term(Eterm **hpp, Uint *szp, erts_lcnt_lock_t *lock id = lock->id; } } else { - id = lock->id; + id = lock->id; } - + for (i = 0; i < lock->n_stats; i++) { stats = lcnt_build_lock_stats_term(hpp, szp, &(lock->stats[i]), stats); } - - t = erts_bld_tuple(hpp, szp, 4, name, id, type, stats); - - res = erts_bld_cons( hpp, szp, t, res); + + t = erts_bld_tuple(hpp, szp, 4, name, id, type, stats); + res = erts_bld_cons( hpp, szp, t, res); return res; } @@ -3976,12 +3982,12 @@ static Eterm lcnt_build_result_term(Eterm **hpp, Uint *szp, erts_lcnt_data_t *da dtns = erts_bld_uint( hpp, szp, data->duration.ns); tdt = erts_bld_tuple(hpp, szp, 2, dts, dtns); - adur = erts_atom_put(str_duration, strlen(str_duration), ERTS_ATOM_ENC_LATIN1, 1); + adur = erts_atom_put((byte *)str_duration, strlen(str_duration), ERTS_ATOM_ENC_LATIN1, 1); tdur = erts_bld_tuple(hpp, szp, 2, adur, tdt); /* lock tuple */ - aloc = erts_atom_put(str_locks, strlen(str_locks), ERTS_ATOM_ENC_LATIN1, 1); + aloc = erts_atom_put((byte *)str_locks, strlen(str_locks), ERTS_ATOM_ENC_LATIN1, 1); for (lock = data->current_locks->head; lock != NULL ; lock = lock->next ) { lloc = lcnt_build_lock_term(hpp, szp, lock, lloc); diff --git a/erts/emulator/beam/erl_binary.h b/erts/emulator/beam/erl_binary.h index 6c9f53ce87..06dfeb1260 100644 --- a/erts/emulator/beam/erl_binary.h +++ b/erts/emulator/beam/erl_binary.h @@ -236,6 +236,8 @@ erts_bin_drv_alloc_fnf(Uint size) { Uint bsize = ERTS_SIZEOF_Binary(size) + CHICKEN_PAD; void *res; + if (bsize < size) /* overflow */ + return NULL; res = erts_alloc_fnf(ERTS_ALC_T_DRV_BINARY, bsize); ERTS_CHK_BIN_ALIGNMENT(res); return (Binary *) res; @@ -246,6 +248,8 @@ erts_bin_drv_alloc(Uint size) { Uint bsize = ERTS_SIZEOF_Binary(size) + CHICKEN_PAD; void *res; + if (bsize < size) /* overflow */ + erts_alloc_enomem(ERTS_ALC_T_DRV_BINARY, size); res = erts_alloc(ERTS_ALC_T_DRV_BINARY, bsize); ERTS_CHK_BIN_ALIGNMENT(res); return (Binary *) res; @@ -257,6 +261,8 @@ erts_bin_nrml_alloc(Uint size) { Uint bsize = ERTS_SIZEOF_Binary(size) + CHICKEN_PAD; void *res; + if (bsize < size) /* overflow */ + erts_alloc_enomem(ERTS_ALC_T_BINARY, size); res = erts_alloc(ERTS_ALC_T_BINARY, bsize); ERTS_CHK_BIN_ALIGNMENT(res); return (Binary *) res; @@ -267,11 +273,12 @@ erts_bin_realloc_fnf(Binary *bp, Uint size) { Binary *nbp; Uint bsize = ERTS_SIZEOF_Binary(size) + CHICKEN_PAD; + ErtsAlcType_t type = (bp->flags & BIN_FLAG_DRV) ? ERTS_ALC_T_DRV_BINARY + : ERTS_ALC_T_BINARY; ASSERT((bp->flags & BIN_FLAG_MAGIC) == 0); - if (bp->flags & BIN_FLAG_DRV) - nbp = erts_realloc_fnf(ERTS_ALC_T_DRV_BINARY, (void *) bp, bsize); - else - nbp = erts_realloc_fnf(ERTS_ALC_T_BINARY, (void *) bp, bsize); + if (bsize < size) /* overflow */ + return NULL; + nbp = erts_realloc_fnf(type, (void *) bp, bsize); ERTS_CHK_BIN_ALIGNMENT(nbp); return nbp; } @@ -281,17 +288,14 @@ erts_bin_realloc(Binary *bp, Uint size) { Binary *nbp; Uint bsize = ERTS_SIZEOF_Binary(size) + CHICKEN_PAD; + ErtsAlcType_t type = (bp->flags & BIN_FLAG_DRV) ? ERTS_ALC_T_DRV_BINARY + : ERTS_ALC_T_BINARY; ASSERT((bp->flags & BIN_FLAG_MAGIC) == 0); - if (bp->flags & BIN_FLAG_DRV) - nbp = erts_realloc_fnf(ERTS_ALC_T_DRV_BINARY, (void *) bp, bsize); - else - nbp = erts_realloc_fnf(ERTS_ALC_T_BINARY, (void *) bp, bsize); + if (bsize < size) /* overflow */ + erts_realloc_enomem(type, bp, size); + nbp = erts_realloc_fnf(type, (void *) bp, bsize); if (!nbp) - erts_realloc_n_enomem(ERTS_ALC_T2N(bp->flags & BIN_FLAG_DRV - ? ERTS_ALC_T_DRV_BINARY - : ERTS_ALC_T_BINARY), - bp, - bsize); + erts_realloc_enomem(type, bp, bsize); ERTS_CHK_BIN_ALIGNMENT(nbp); return nbp; } @@ -312,6 +316,7 @@ erts_create_magic_binary(Uint size, void (*destructor)(Binary *)) { Uint bsize = ERTS_MAGIC_BIN_SIZE(size); Binary* bptr = erts_alloc_fnf(ERTS_ALC_T_BINARY, bsize); + ASSERT(bsize > size); if (!bptr) erts_alloc_n_enomem(ERTS_ALC_T2N(ERTS_ALC_T_BINARY), bsize); ERTS_CHK_BIN_ALIGNMENT(bptr); diff --git a/erts/emulator/beam/erl_init.c b/erts/emulator/beam/erl_init.c index 5e6d812242..88c4006934 100644 --- a/erts/emulator/beam/erl_init.c +++ b/erts/emulator/beam/erl_init.c @@ -2066,8 +2066,10 @@ erl_exit_vv(int n, int flush_async, char *fmt, va_list args1, va_list args2) system_cleanup(flush_async); save_statistics(); - - an = abs(n); + if (n < 0) + an = -(unsigned int)n; + else + an = n; if (erts_mtrace_enabled) erts_mtrace_exit((Uint32) an); diff --git a/erts/emulator/beam/erl_lock_check.c b/erts/emulator/beam/erl_lock_check.c index c13eb87012..c665aa51a2 100644 --- a/erts/emulator/beam/erl_lock_check.c +++ b/erts/emulator/beam/erl_lock_check.c @@ -227,8 +227,7 @@ rw_op_str(Uint16 flags) case ERTS_LC_FLG_LO_READ: return " (r)"; case ERTS_LC_FLG_LO_WRITE: - erts_fprintf(stderr, "\nInternal error\n"); - lc_abort(); + ERTS_INTERNAL_ERROR("Only write flag present"); default: break; } @@ -311,8 +310,7 @@ static ERTS_INLINE void lc_free(void *p) static void *lc_core_alloc(void) { lc_unlock(); - erts_fprintf(stderr, "Lock checker out of memory!\n"); - lc_abort(); + ERTS_INTERNAL_ERROR("Lock checker out of memory!\n"); } #else @@ -325,8 +323,7 @@ static void *lc_core_alloc(void) fbs = (erts_lc_free_block_t *) malloc(sizeof(erts_lc_free_block_t) * ERTS_LC_FB_CHUNK_SIZE); if (!fbs) { - erts_fprintf(stderr, "Lock checker failed to allocate memory!\n"); - lc_abort(); + ERTS_INTERNAL_ERROR("Lock checker failed to allocate memory!"); } for (i = 1; i < ERTS_LC_FB_CHUNK_SIZE - 1; i++) { #ifdef DEBUG @@ -366,11 +363,11 @@ create_locked_locks(char *thread_name) { erts_lc_locked_locks_t *l_lcks = malloc(sizeof(erts_lc_locked_locks_t)); if (!l_lcks) - lc_abort(); + ERTS_INTERNAL_ERROR("Lock checker failed to allocate memory!"); l_lcks->thread_name = strdup(thread_name ? thread_name : "unknown"); if (!l_lcks->thread_name) - lc_abort(); + ERTS_INTERNAL_ERROR("Lock checker failed to allocate memory!"); l_lcks->emu_thread = 0; l_lcks->tid = erts_thr_self(); @@ -691,7 +688,7 @@ erts_lc_set_thread_name(char *thread_name) free((void *) l_lcks->thread_name); l_lcks->thread_name = strdup(thread_name ? thread_name : "unknown"); if (!l_lcks->thread_name) - lc_abort(); + ERTS_INTERNAL_ERROR("strdup failed"); } l_lcks->emu_thread = 1; } @@ -1330,7 +1327,7 @@ erts_lc_init(void) #endif /* #ifdef ERTS_LC_STATIC_ALLOC */ if (ethr_spinlock_init(&free_blocks_lock) != 0) - lc_abort(); + ERTS_INTERNAL_ERROR("spinlock_init failed"); erts_tsd_key_create(&locks_key,"erts_lock_check_key"); } diff --git a/erts/emulator/beam/erl_lock_count.c b/erts/emulator/beam/erl_lock_count.c index 6f44bf097b..cf6996ea06 100644 --- a/erts/emulator/beam/erl_lock_count.c +++ b/erts/emulator/beam/erl_lock_count.c @@ -61,6 +61,25 @@ static ERTS_INLINE void lcnt_unlock(void) { ethr_mutex_unlock(&lcnt_data_lock); } +const int log2_tab64[64] = { + 63, 0, 58, 1, 59, 47, 53, 2, + 60, 39, 48, 27, 54, 33, 42, 3, + 61, 51, 37, 40, 49, 18, 28, 20, + 55, 30, 34, 11, 43, 14, 22, 4, + 62, 57, 46, 52, 38, 26, 32, 41, + 50, 36, 17, 19, 29, 10, 13, 21, + 56, 45, 25, 31, 35, 16, 9, 12, + 44, 24, 15, 8, 23, 7, 6, 5}; + +static ERTS_INLINE int lcnt_log2(Uint64 v) { + v |= v >> 1; + v |= v >> 2; + v |= v >> 4; + v |= v >> 8; + v |= v >> 16; + v |= v >> 32; + return log2_tab64[((Uint64)((v - (v >> 1))*0x07EDD5E59A4E28C2)) >> 58]; +} static char* lcnt_lock_type(Uint16 flag) { switch(flag & ERTS_LCNT_LT_ALL) { @@ -81,19 +100,20 @@ static void lcnt_clear_stats(erts_lcnt_lock_stats_t *stats) { stats->timer_n = 0; stats->file = (char *)str_undefined; stats->line = 0; + sys_memzero(stats->hist.ns, sizeof(stats->hist.ns)); } static void lcnt_time(erts_lcnt_time_t *time) { -#ifdef HAVE_GETHRTIME +#if 0 || defined(HAVE_GETHRTIME) SysHrTime hr_time; hr_time = sys_gethrtime(); time->s = (unsigned long)(hr_time / 1000000000LL); time->ns = (unsigned long)(hr_time - 1000000000LL*time->s); -#else - SysTimeval tv; - sys_gettimeofday(&tv); - time->s = tv.tv_sec; - time->ns = tv.tv_usec*1000LL; +#else + SysTimeval tv; + sys_gettimeofday(&tv); + time->s = tv.tv_sec; + time->ns = tv.tv_usec*1000LL; #endif } @@ -111,28 +131,29 @@ static void lcnt_time_diff(erts_lcnt_time_t *d, erts_lcnt_time_t *t1, erts_lcnt_ dns += 1000000000LL; } + ASSERT(ds >= 0); + d->s = ds; d->ns = dns; } -/* difference d must be positive */ +/* difference d must be non-negative */ static void lcnt_time_add(erts_lcnt_time_t *t, erts_lcnt_time_t *d) { - unsigned long ngns = 0; - t->s += d->s; t->ns += d->ns; - ngns = t->ns / 1000000000LL; + t->s += t->ns / 1000000000LL; t->ns = t->ns % 1000000000LL; - - t->s += ngns; } static erts_lcnt_thread_data_t *lcnt_thread_data_alloc(void) { erts_lcnt_thread_data_t *eltd; eltd = (erts_lcnt_thread_data_t*)malloc(sizeof(erts_lcnt_thread_data_t)); + if (!eltd) { + ERTS_INTERNAL_ERROR("Lock counter failed to allocate memory!"); + } eltd->timer_set = 0; eltd->lock_in_conflict = 0; @@ -158,59 +179,64 @@ static char* lock_opt(Uint16 flag) { return "--"; } -static void print_lock_x(erts_lcnt_lock_t *lock, Uint16 flag, char *action, char *extra) { - erts_aint_t colls, tries, w_state, r_state; - erts_lcnt_lock_stats_t *stats = NULL; - +static void print_lock_x(erts_lcnt_lock_t *lock, Uint16 flag, char *action) { + erts_aint_t w_state, r_state; char *type; - int i; - + + if (strcmp(lock->name, "run_queue") != 0) return; type = lcnt_lock_type(lock->flag); r_state = ethr_atomic_read(&lock->r_state); w_state = ethr_atomic_read(&lock->w_state); - if (lock->flag & flag) { - erts_printf("%20s [%30s] [r/w state %4ld/%4ld] id %T %s\r\n", - action, - lock->name, - r_state, - w_state, - lock->id, - extra); + erts_fprintf(stderr,"%10s [%24s] [r/w state %4ld/%4ld] %2s id %T\r\n", + action, + lock->name, + r_state, + w_state, + type, + lock->id); } } - -static void print_lock(erts_lcnt_lock_t *lock, char *action) { - if (strcmp(lock->name, "proc_main") == 0) { - print_lock_x(lock, ERTS_LCNT_LT_ALL, action, ""); - } -} - #endif static erts_lcnt_lock_stats_t *lcnt_get_lock_stats(erts_lcnt_lock_t *lock, char *file, unsigned int line) { unsigned int i; erts_lcnt_lock_stats_t *stats = NULL; - - for (i = 0; i < lock->n_stats; i++) { - if ((lock->stats[i].file == file) && (lock->stats[i].line == line)) { - return &(lock->stats[i]); - } - } - if (lock->n_stats < ERTS_LCNT_MAX_LOCK_LOCATIONS) { - stats = &lock->stats[lock->n_stats]; - lock->n_stats++; - stats->file = file; - stats->line = line; - return stats; + if (erts_lcnt_rt_options & ERTS_LCNT_OPT_LOCATION) { + for (i = 0; i < lock->n_stats; i++) { + if ((lock->stats[i].file == file) && (lock->stats[i].line == line)) { + return &(lock->stats[i]); + } + } + if (lock->n_stats < ERTS_LCNT_MAX_LOCK_LOCATIONS) { + stats = &lock->stats[lock->n_stats]; + lock->n_stats++; + stats->file = file; + stats->line = line; + return stats; + } } return &lock->stats[0]; +} +static void lcnt_update_stats_hist(erts_lcnt_hist_t *hist, erts_lcnt_time_t *time_wait) { + int idx; + unsigned long r; + + if (time_wait->s > 0 || time_wait->ns > ERTS_LCNT_HISTOGRAM_MAX_NS) { + idx = ERTS_LCNT_HISTOGRAM_SLOT_SIZE - 1; + } else { + r = time_wait->ns >> ERTS_LCNT_HISTOGRAM_RSHIFT; + if (r) idx = lcnt_log2(r); + else idx = 0; + } + hist->ns[idx]++; } -static void lcnt_update_stats(erts_lcnt_lock_stats_t *stats, int lock_in_conflict, erts_lcnt_time_t *time_wait) { +static void lcnt_update_stats(erts_lcnt_lock_stats_t *stats, int lock_in_conflict, + erts_lcnt_time_t *time_wait) { ethr_atomic_inc(&stats->tries); @@ -220,6 +246,7 @@ static void lcnt_update_stats(erts_lcnt_lock_stats_t *stats, int lock_in_conflic if (time_wait) { lcnt_time_add(&(stats->timer), time_wait); stats->timer_n++; + lcnt_update_stats_hist(&stats->hist,time_wait); } } @@ -248,6 +275,9 @@ void erts_lcnt_init() { /* init lcnt structure */ erts_lcnt_data = (erts_lcnt_data_t*)malloc(sizeof(erts_lcnt_data_t)); + if (!erts_lcnt_data) { + ERTS_INTERNAL_ERROR("Lock counter failed to allocate memory!"); + } erts_lcnt_data->current_locks = erts_lcnt_list_init(); erts_lcnt_data->deleted_locks = erts_lcnt_list_init(); @@ -269,6 +299,9 @@ erts_lcnt_lock_list_t *erts_lcnt_list_init(void) { erts_lcnt_lock_list_t *list; list = (erts_lcnt_lock_list_t*)malloc(sizeof(erts_lcnt_lock_list_t)); + if (!list) { + ERTS_INTERNAL_ERROR("Lock counter failed to allocate memory!"); + } list->head = NULL; list->tail = NULL; list->n = 0; @@ -330,8 +363,9 @@ void erts_lcnt_list_delete(erts_lcnt_lock_list_t *list, erts_lcnt_lock_t *lock) /* interface to erl_threads.h */ /* only lock on init and destroy, all others should use atomics */ void erts_lcnt_init_lock(erts_lcnt_lock_t *lock, char *name, Uint16 flag ) { - erts_lcnt_init_lock_x(lock, name, flag, am_undefined); + erts_lcnt_init_lock_x(lock, name, flag, NIL); } + void erts_lcnt_init_lock_x(erts_lcnt_lock_t *lock, char *name, Uint16 flag, Eterm id) { int i; if (!name) { @@ -360,7 +394,6 @@ void erts_lcnt_init_lock_x(erts_lcnt_lock_t *lock, char *name, Uint16 flag, Eter } erts_lcnt_list_insert(erts_lcnt_data->current_locks, lock); - lcnt_unlock(); } @@ -375,6 +408,9 @@ void erts_lcnt_destroy_lock(erts_lcnt_lock_t *lock) { /* copy structure and insert the copy */ deleted_lock = (erts_lcnt_lock_t*)malloc(sizeof(erts_lcnt_lock_t)); + if (!deleted_lock) { + ERTS_INTERNAL_ERROR("Lock counter failed to allocate memory!"); + } memcpy(deleted_lock, lock, sizeof(erts_lcnt_lock_t)); deleted_lock->next = NULL; @@ -417,8 +453,9 @@ void erts_lcnt_lock_opt(erts_lcnt_lock_t *lock, Uint16 option) { if ((w_state > 0) || (r_state > 0)) { eltd->lock_in_conflict = 1; - if (eltd->timer_set == 0) + if (eltd->timer_set == 0) { lcnt_time(&eltd->timer); + } eltd->timer_set++; } else { eltd->lock_in_conflict = 0; @@ -433,7 +470,7 @@ void erts_lcnt_lock(erts_lcnt_lock_t *lock) { if (!ERTS_LCNT_LOCK_TYPE(lock)) return; w_state = ethr_atomic_read(&lock->w_state); - ethr_atomic_inc( &lock->w_state); + ethr_atomic_inc(&lock->w_state); eltd = lcnt_get_thread_data(); @@ -446,10 +483,10 @@ void erts_lcnt_lock(erts_lcnt_lock_t *lock) { * 'atomicly'. All other locks will block the thread if w_state > 0 * i.e. locked. */ - if (eltd->timer_set == 0) + if (eltd->timer_set == 0) { lcnt_time(&eltd->timer); + } eltd->timer_set++; - } else { eltd->lock_in_conflict = 0; } @@ -459,11 +496,10 @@ void erts_lcnt_lock(erts_lcnt_lock_t *lock) { void erts_lcnt_lock_unaquire(erts_lcnt_lock_t *lock) { /* should check if this thread was "waiting" */ - if (erts_lcnt_rt_options & ERTS_LCNT_OPT_SUSPEND) return; if (!ERTS_LCNT_LOCK_TYPE(lock)) return; - ethr_atomic_dec( &lock->w_state); + ethr_atomic_dec(&lock->w_state); } /* erts_lcnt_lock_post @@ -491,7 +527,7 @@ void erts_lcnt_lock_post_x(erts_lcnt_lock_t *lock, char *file, unsigned int line if (!(lock->flag & (ERTS_LCNT_LT_RWMUTEX | ERTS_LCNT_LT_RWSPINLOCK))) { flowstate = ethr_atomic_read(&lock->flowstate); ASSERT(flowstate == 0); - ethr_atomic_inc( &lock->flowstate); + ethr_atomic_inc(&lock->flowstate); } #endif @@ -500,19 +536,12 @@ void erts_lcnt_lock_post_x(erts_lcnt_lock_t *lock, char *file, unsigned int line ASSERT(eltd); /* if lock was in conflict, time it */ - - if (erts_lcnt_rt_options & ERTS_LCNT_OPT_LOCATION) { - stats = lcnt_get_lock_stats(lock, file, line); - } else { - stats = &lock->stats[0]; - } - + stats = lcnt_get_lock_stats(lock, file, line); if (eltd->timer_set) { lcnt_time(&timer); lcnt_time_diff(&time_wait, &timer, &(eltd->timer)); lcnt_update_stats(stats, eltd->lock_in_conflict, &time_wait); - eltd->timer_set--; ASSERT(eltd->timer_set >= 0); } else { @@ -541,11 +570,11 @@ void erts_lcnt_unlock(erts_lcnt_lock_t *lock) { /* flowstate */ flowstate = ethr_atomic_read(&lock->flowstate); ASSERT(flowstate == 1); - ethr_atomic_dec( &lock->flowstate); + ethr_atomic_dec(&lock->flowstate); /* write state */ w_state = ethr_atomic_read(&lock->w_state); - ASSERT(w_state > 0) + ASSERT(w_state > 0); #endif ethr_atomic_dec(&lock->w_state); } @@ -582,9 +611,7 @@ void erts_lcnt_trylock(erts_lcnt_lock_t *lock, int res) { ethr_atomic_inc( &lock->flowstate); #endif ethr_atomic_inc(&lock->w_state); - lcnt_update_stats(&(lock->stats[0]), 0, NULL); - } else { ethr_atomic_inc(&lock->stats[0].tries); ethr_atomic_inc(&lock->stats[0].colls); diff --git a/erts/emulator/beam/erl_lock_count.h b/erts/emulator/beam/erl_lock_count.h index 75f7cd028b..ffbb93da1b 100644 --- a/erts/emulator/beam/erl_lock_count.h +++ b/erts/emulator/beam/erl_lock_count.h @@ -35,6 +35,10 @@ * | | | - collisions (including trylock busy) * | | | - timer (time spent in waiting for lock) * | | | - n_timer (collisions excluding trylock busy) + * | | | - histogram + * | | | | - # 0 = log2(lock wait_time ns) + * | | | | - ... + * | | | | - # n = log2(lock wait_time ns) * * Each instance of a lock is the unique lock, i.e. set and id in that set. * For each lock there is a set of statistics with where and what impact @@ -68,8 +72,17 @@ #include "ethread.h" +#define ERTS_LCNT_MAX_LOCK_LOCATIONS (10) -#define ERTS_LCNT_MAX_LOCK_LOCATIONS (10) +/* histogram */ +#define ERTS_LCNT_HISTOGRAM_MAX_NS (((unsigned long)1LL << 28) - 1) +#if 0 || defined(HAVE_GETHRTIME) +#define ERTS_LCNT_HISTOGRAM_SLOT_SIZE (30) +#define ERTS_LCNT_HISTOGRAM_RSHIFT (0) +#else +#define ERTS_LCNT_HISTOGRAM_SLOT_SIZE (20) +#define ERTS_LCNT_HISTOGRAM_RSHIFT (10) +#endif #define ERTS_LCNT_LT_SPINLOCK (((Uint16) 1) << 0) #define ERTS_LCNT_LT_RWSPINLOCK (((Uint16) 1) << 1) @@ -104,6 +117,10 @@ typedef struct { extern erts_lcnt_time_t timer_start; +typedef struct { + Uint32 ns[ERTS_LCNT_HISTOGRAM_SLOT_SIZE]; /* log2 array of nano seconds occurences */ +} erts_lcnt_hist_t; + typedef struct erts_lcnt_lock_stats_s { /* "tries" and "colls" needs to be atomic since * trylock busy does not aquire a lock and there @@ -118,6 +135,7 @@ typedef struct erts_lcnt_lock_stats_s { unsigned long timer_n; /* #times waited for lock */ erts_lcnt_time_t timer; /* total wait time for lock */ + erts_lcnt_hist_t hist; } erts_lcnt_lock_stats_t; /* rw locks uses both states, other locks only uses w_state */ diff --git a/erts/emulator/beam/erl_port_task.c b/erts/emulator/beam/erl_port_task.c index 31d9a1e26e..2fc95ed5d8 100644 --- a/erts/emulator/beam/erl_port_task.c +++ b/erts/emulator/beam/erl_port_task.c @@ -798,12 +798,13 @@ schedule_port_task_handle_list_free(ErtsPortTaskHandleList *pthlp) static ERTS_INLINE void abort_nosuspend_task(Port *pp, ErtsPortTaskType type, - ErtsPortTaskTypeData *tdp) + ErtsPortTaskTypeData *tdp, + int bpq_data) { ASSERT(type == ERTS_PORT_TASK_PROC_SIG); - if (!pp->sched.taskq.bpq) + if (!bpq_data) tdp->psig.callback(NULL, ERTS_PORT_SFLG_INVALID, ERTS_PROC2PORT_SIG_ABORT_NOSUSPEND, @@ -1345,7 +1346,7 @@ erts_port_task_abort_nosuspend_tasks(Port *pp) #endif schedule_port_task_handle_list_free(pthlp); - abort_nosuspend_task(pp, type, &td); + abort_nosuspend_task(pp, type, &td, pp->sched.taskq.bpq != NULL); } } @@ -1525,7 +1526,7 @@ abort_nosuspend: erts_port_dec_refc(pp); #endif - abort_nosuspend_task(pp, ptp->type, &ptp->u.alive.td); + abort_nosuspend_task(pp, ptp->type, &ptp->u.alive.td, 0); ASSERT(ns_pthlp); erts_free(ERTS_ALC_T_PT_HNDL_LIST, ns_pthlp); diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c index b73f9b7f92..1606ad119d 100644 --- a/erts/emulator/beam/erl_process.c +++ b/erts/emulator/beam/erl_process.c @@ -2211,6 +2211,9 @@ aux_work_timeout_early_init(int no_schedulers) p = (UWord) malloc((sizeof(ErtsAuxWorkTmo) + sizeof(erts_atomic32_t)*(no_schedulers+1)) + ERTS_CACHE_LINE_SIZE-1); + if (!p) { + ERTS_INTERNAL_ERROR("malloc failed to allocate memory!"); + } if (p & ERTS_CACHE_LINE_MASK) p = (p & ~ERTS_CACHE_LINE_MASK) + ERTS_CACHE_LINE_SIZE; ASSERT((p & ERTS_CACHE_LINE_MASK) == 0); @@ -7818,6 +7821,9 @@ erts_start_schedulers(void) #ifdef ETHR_HAVE_THREAD_NAMES opts.name = malloc(80); + if (!opts.name) { + ERTS_INTERNAL_ERROR("malloc failed to allocate memory!"); + } #endif #ifdef ERTS_SMP diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c index edf4a28784..0f86d8e41d 100644 --- a/erts/emulator/beam/io.c +++ b/erts/emulator/beam/io.c @@ -6129,7 +6129,7 @@ driver_pdl_create(ErlDrvPort dp) return NULL; pdl = erts_alloc(ERTS_ALC_T_PORT_DATA_LOCK, sizeof(struct erl_drv_port_data_lock)); - erts_mtx_init(&pdl->mtx, "port_data_lock"); + erts_mtx_init_x(&pdl->mtx, "port_data_lock", pp->common.id, 1); pdl_init_refc(pdl); erts_port_inc_refc(pp); pdl->prt = pp; @@ -7166,7 +7166,7 @@ char *driver_dl_error(void) #define ERL_DRV_SYS_INFO_SIZE(LAST_FIELD) \ - (((size_t) &((ErlDrvSysInfo *) 0)->LAST_FIELD) \ + (offsetof(ErlDrvSysInfo, LAST_FIELD) \ + sizeof(((ErlDrvSysInfo *) 0)->LAST_FIELD)) void diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h index 05f07e57b2..3d8dd9c6d0 100644 --- a/erts/emulator/beam/sys.h +++ b/erts/emulator/beam/sys.h @@ -274,6 +274,7 @@ __decl_noreturn void __noreturn erl_assert_error(const char* expr, const char *f typedef unsigned int Eterm; typedef unsigned int Uint; typedef int Sint; +#define ERTS_UINT_MAX UINT_MAX #define ERTS_SIZEOF_ETERM SIZEOF_INT #define ErtsStrToSint strtol #else @@ -347,6 +348,7 @@ typedef long long Sint; typedef Uint UWord; typedef Sint SWord; +#define ERTS_UINT_MAX ERTS_UWORD_MAX #endif /* HALFWORD_HEAP */ diff --git a/erts/emulator/beam/utils.c b/erts/emulator/beam/utils.c index 72092ec7b0..55f9e68e78 100644 --- a/erts/emulator/beam/utils.c +++ b/erts/emulator/beam/utils.c @@ -3948,6 +3948,9 @@ erts_save_emu_args(int argc, char **argv) size += sz+1; } ptr = (char *) malloc(size); + if (!ptr) { + ERTS_INTERNAL_ERROR("malloc failed to allocate memory!"); + } #ifdef DEBUG end_ptr = ptr + size; #endif diff --git a/erts/emulator/drivers/common/inet_drv.c b/erts/emulator/drivers/common/inet_drv.c index 09bada457d..09d90f4984 100644 --- a/erts/emulator/drivers/common/inet_drv.c +++ b/erts/emulator/drivers/common/inet_drv.c @@ -4372,7 +4372,7 @@ static int erl_inet_close(inet_descriptor* desc) desc_close(desc); desc->state = INET_STATE_CLOSED; } else if (desc->prebound && (desc->s != INVALID_SOCKET)) { - sock_select(desc, FD_READ | FD_WRITE | FD_CLOSE, 0); + sock_select(desc, FD_READ | FD_WRITE | FD_CLOSE | ERL_DRV_USE_NO_CALLBACK, 0); desc->event_mask = 0; #ifdef __WIN32__ desc->forced_events = 0; @@ -4536,7 +4536,8 @@ static ErlDrvSSizeT inet_ctl_open(inet_descriptor* desc, int domain, int type, /* as inet_open but pass in an open socket (MUST BE OF RIGHT TYPE) */ static ErlDrvSSizeT inet_ctl_fdopen(inet_descriptor* desc, int domain, int type, - SOCKET s, char** rbuf, ErlDrvSizeT rsize) + SOCKET s, Uint32 bound, + char** rbuf, ErlDrvSizeT rsize) { inet_address name; unsigned int sz = sizeof(name); @@ -4560,7 +4561,12 @@ static ErlDrvSSizeT inet_ctl_fdopen(inet_descriptor* desc, int domain, int type, #ifdef __WIN32__ driver_select(desc->port, desc->event, ERL_DRV_READ, 1); #endif - desc->state = INET_STATE_BOUND; /* assume bound */ + + if (bound) + desc->state = INET_STATE_BOUND; + else + desc->state = INET_STATE_OPEN; + if (type == SOCK_STREAM) { /* check if connected */ sz = sizeof(name); if (!IS_SOCKET_ERROR(sock_peer(s, (struct sockaddr*) &name, &sz))) { @@ -9121,10 +9127,11 @@ static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData e, unsigned int cmd, break; } - case INET_REQ_FDOPEN: { /* pass in an open socket */ + case INET_REQ_FDOPEN: { /* pass in an open (and optionally bound) socket */ int domain; + int bound; DEBUGF(("tcp_inet_ctl(%ld): FDOPEN\r\n", (long)desc->inet.port)); - if (len != 6) return ctl_error(EINVAL, rbuf, rsize); + if (len != 6 && len != 10) return ctl_error(EINVAL, rbuf, rsize); switch(buf[0]) { case INET_AF_INET: domain = AF_INET; @@ -9142,8 +9149,13 @@ static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData e, unsigned int cmd, return ctl_error(EINVAL, rbuf, rsize); } if (buf[1] != INET_TYPE_STREAM) return ctl_error(EINVAL, rbuf, rsize); + + if (len == 6) bound = 1; + else bound = get_int32(buf+2+4); + return inet_ctl_fdopen(INETP(desc), domain, SOCK_STREAM, - (SOCKET) get_int32(buf+2), rbuf, rsize); + (SOCKET) get_int32(buf+2), + bound, rbuf, rsize); break; } @@ -11116,10 +11128,11 @@ static ErlDrvSSizeT packet_inet_ctl(ErlDrvData e, unsigned int cmd, char* buf, return replen; - case INET_REQ_FDOPEN: { /* pass in an open (and bound) socket */ + case INET_REQ_FDOPEN: { /* pass in an open (and optionally bound) socket */ SOCKET s; + int bound; DEBUGF(("packet inet_ctl(%ld): FDOPEN\r\n", (long)desc->port)); - if (len != 6) { + if (len != 6 && len != 10) { return ctl_error(EINVAL, rbuf, rsize); } switch (buf[0]) { @@ -11144,7 +11157,11 @@ static ErlDrvSSizeT packet_inet_ctl(ErlDrvData e, unsigned int cmd, char* buf, return ctl_error(EINVAL, rbuf, rsize); } s = (SOCKET)get_int32(buf+2); - replen = inet_ctl_fdopen(desc, af, type, s, rbuf, rsize); + + if (len == 6) bound = 1; + else bound = get_int32(buf+2+4); + + replen = inet_ctl_fdopen(desc, af, type, s, bound, rbuf, rsize); if ((*rbuf)[0] != INET_REP_ERROR) { if (desc->active) diff --git a/erts/emulator/test/Makefile b/erts/emulator/test/Makefile index 0b0568c31a..dfbe47786a 100644 --- a/erts/emulator/test/Makefile +++ b/erts/emulator/test/Makefile @@ -31,6 +31,7 @@ MODULES= \ a_SUITE \ after_SUITE \ alloc_SUITE \ + async_ports_SUITE \ beam_SUITE \ beam_literals_SUITE \ bif_SUITE \ diff --git a/erts/emulator/test/async_ports_SUITE.erl b/erts/emulator/test/async_ports_SUITE.erl new file mode 100644 index 0000000000..c89b3655ff --- /dev/null +++ b/erts/emulator/test/async_ports_SUITE.erl @@ -0,0 +1,118 @@ +-module(async_ports_SUITE). + +-include_lib("common_test/include/ct.hrl"). + +-compile(export_all). + +-define(PACKET_SIZE, (10 * 1024 * 8)). +-define(CPORT_DELAY, 100). +-define(TEST_LOOPS_COUNT, 100000). +-define(SLEEP_BEFORE_CHECK, 1000). +-define(TEST_PROCS_COUNT, 2). +-define(TC_TIMETRAP_SECONDS, 10). + +suite() -> [{ct_hooks,[ts_install_cth]}]. + +all() -> + [ + permanent_busy_test + ]. + +permanent_busy_test(Config) -> + ct:timetrap({seconds, ?TC_TIMETRAP_SECONDS}), + ExePath = filename:join(?config(data_dir, Config), "cport"), + + Self = self(), + spawn_link( + fun() -> + Block = <<0:?PACKET_SIZE>>, + + Port = open_port(ExePath), + + Testers = + lists:map( + fun(_) -> + erlang:spawn_link(?MODULE, run_loop, + [Self, + Port, + Block, + ?TEST_LOOPS_COUNT, + 0]) + end, + lists:seq(1, ?TEST_PROCS_COUNT)), + Self ! {test_info, Port, Testers}, + endless_flush(Port) + end), + + receive + {test_info, Port, Testers} -> + MaxWaitTime = round(0.7 * ?TC_TIMETRAP_SECONDS * 1000), + ct:log("wait testers, maximum ~w mcsec~n", [MaxWaitTime]), + ok = wait_testers(MaxWaitTime, Testers), + timer:sleep(?SLEEP_BEFORE_CHECK), + case erlang:port_command(Port, <<"test">>, [nosuspend]) of + false -> + exit(port_dead); + true -> + ok + end + end. + +wait_testers(Timeout, Testers) -> + lists:foldl( + fun(Pid, AccIn) -> + StartWait = os:timestamp(), + receive + {Pid, port_dead} -> + recalc_timeout(AccIn, StartWait) + after AccIn -> + Pid ! stop, + recalc_timeout(AccIn, StartWait) + end + end, Timeout, Testers), + ok. + +recalc_timeout(TimeoutIn, WaitStart) -> + erlang:max(0, TimeoutIn - round(timer:now_diff(os:timestamp(), WaitStart)) div 1000). + +open_port(ExePath) -> + erlang:open_port({spawn, ExePath ++ " 100"}, [{packet, 4}, eof, exit_status, use_stdio, binary]). + +run_loop(RootProc, Port, Block, CheckLimit, BusyCnt) -> + receive + stop -> + ok + after 0 -> + case erlang:port_command(Port, Block, [nosuspend]) of + true -> + run_loop(RootProc, Port, Block, CheckLimit, 0); + false -> + if + BusyCnt + 1 > CheckLimit -> + check_dead(RootProc, Port, Block, CheckLimit); + true -> + run_loop(RootProc, Port, Block, CheckLimit, BusyCnt + 1) + end + end + end. + +check_dead(RootProc, Port, Block, CheckLimit) -> + ct:log("~p: check port dead~n", [self()]), + timer:sleep(?SLEEP_BEFORE_CHECK), + case erlang:port_command(Port, Block, [nosuspend]) of + true -> + ct:log("not dead~n"), + run_loop(RootProc, Port, Block, CheckLimit, 0); + false -> + ct:log("port dead: ~p~n", [Port]), + RootProc ! {self(), port_dead}, + ok + end. + +endless_flush(Port) -> + receive + {Port, {data, _}} -> + endless_flush(Port); + {Port, SomethingWrong} -> + erlang:error({someting_wrong, SomethingWrong}) + end. diff --git a/erts/emulator/test/async_ports_SUITE_data/Makefile.src b/erts/emulator/test/async_ports_SUITE_data/Makefile.src new file mode 100644 index 0000000000..56da3fbe12 --- /dev/null +++ b/erts/emulator/test/async_ports_SUITE_data/Makefile.src @@ -0,0 +1,15 @@ +CC = @CC@ +LD = @LD@ +CFLAGS = @CFLAGS@ @DEFS@ +CROSSLDFLAGS = @CROSSLDFLAGS@ + +PROGS = cport@exe@ + + +all: $(PROGS) + +cport@exe@: cport@obj@ + $(LD) $(CROSSLDFLAGS) -o cport cport@obj@ @LIBS@ + +cport@obj@: cport.c + $(CC) -c -o cport@obj@ $(CFLAGS) cport.c diff --git a/erts/emulator/test/async_ports_SUITE_data/cport.c b/erts/emulator/test/async_ports_SUITE_data/cport.c new file mode 100644 index 0000000000..033aff382a --- /dev/null +++ b/erts/emulator/test/async_ports_SUITE_data/cport.c @@ -0,0 +1,81 @@ +#include <stdlib.h> +#include <stdio.h> +#include <errno.h> +#include <string.h> +#ifdef __WIN32__ +# include "windows.h" +# include "winbase.h" +#else +# include <unistd.h> +#endif + +typedef unsigned char byte; + +int read_cmd(byte *buf) +{ + int len; + if (read_exact(buf, 4) != 4) + return(-1); + + len = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3]; + return read_exact(buf, len); +} + +int write_cmd(byte *buf, int len) +{ + byte li[4]; + li[0] = (len >> 24) & 0xff; + li[1] = (len >> 16) & 0xff; + li[2] = (len >> 8) & 0xff; + li[3] = len & 0xff; + write_exact(&li, 4); + + return write_exact(buf, len); +} + +int read_exact(byte *buf, int len) +{ + int i, got=0; + do { + if ((i = read(0, buf+got, len-got)) <= 0) + { + return(i); + } + got += i; + } while (got<len); + return len; +} + +int write_exact(byte *buf, int len) +{ + int i, wrote = 0; + do { + if ((i = write(1, buf+wrote, len-wrote)) < 0) + return (i); + wrote += i; + } while (wrote<len); + return len; +} + +byte static_buf[31457280]; // 30 mb + +int main(int argc, char **argv) { + int sleep_time = atoi(argv[1]); + int fn, arg, res; + byte *buf = &static_buf[0]; + int len = 0; + if (sleep_time <= 0) + sleep_time = 0; +#ifdef __WIN32__ + else + sleep_time = ((sleep_time - 1) / 1000) + 1; /* Milli seconds */ +#endif + while ((len = read_cmd(buf)) > 0) { +#ifdef __WIN32__ + Sleep((DWORD) sleep_time); +#else + usleep(sleep_time); +#endif + write_cmd(buf, len); + } +} diff --git a/erts/emulator/test/driver_SUITE.erl b/erts/emulator/test/driver_SUITE.erl index c62bc0c454..344bde7c91 100644 --- a/erts/emulator/test/driver_SUITE.erl +++ b/erts/emulator/test/driver_SUITE.erl @@ -1062,10 +1062,9 @@ otp_6602(Config) when is_list(Config) -> %% Inet driver use port locking... {ok, S} = gen_udp:open(0), {ok, Fd} = inet:getfd(S), - {ok, Port} = inet:port(S), %% Steal fd (lock checker used to %% trigger here). - {ok, _S2} = gen_udp:open(Port,[{fd,Fd}]), + {ok, _S2} = gen_udp:open(0,[{fd,Fd}]), Parent ! Done end), ?line receive Done -> ok end, diff --git a/erts/epmd/src/epmd.c b/erts/epmd/src/epmd.c index 3cfa7a782f..9630e0cdf0 100644 --- a/erts/epmd/src/epmd.c +++ b/erts/epmd/src/epmd.c @@ -498,7 +498,11 @@ static void dbg_gen_printf(int onsyslog,int perr,int from_level, #ifdef HAVE_SYSLOG_H if (onsyslog) { - erts_vsnprintf(buf, DEBUG_BUFFER_SIZE, format, args); + int len; + len = erts_vsnprintf(buf, DEBUG_BUFFER_SIZE, format, args); + if (perr != 0 && len < sizeof(buf)) { + erts_snprintf(buf+len, sizeof(buf)-len, ": %s", strerror(perr)); + } syslog(LOG_ERR,"epmd: %s",buf); } #endif diff --git a/erts/preloaded/ebin/prim_inet.beam b/erts/preloaded/ebin/prim_inet.beam Binary files differindex 93e70cd623..8420052533 100644 --- a/erts/preloaded/ebin/prim_inet.beam +++ b/erts/preloaded/ebin/prim_inet.beam diff --git a/erts/preloaded/src/prim_inet.erl b/erts/preloaded/src/prim_inet.erl index 143c718130..79ff013c77 100644 --- a/erts/preloaded/src/prim_inet.erl +++ b/erts/preloaded/src/prim_inet.erl @@ -25,7 +25,7 @@ %% Primitive inet_drv interface --export([open/3, open/4, fdopen/4, close/1]). +-export([open/3, open/4, fdopen/4, fdopen/5, close/1]). -export([bind/3, listen/1, listen/2, peeloff/2]). -export([connect/3, connect/4, async_connect/4]). -export([accept/1, accept/2, async_accept/2]). @@ -70,7 +70,12 @@ open(Protocol, Family, Type, Opts) -> open(Protocol, Family, Type, Opts, ?INET_REQ_OPEN, []). fdopen(Protocol, Family, Type, Fd) when is_integer(Fd) -> - open(Protocol, Family, Type, [], ?INET_REQ_FDOPEN, ?int32(Fd)). + fdopen(Protocol, Family, Type, Fd, true). + +fdopen(Protocol, Family, Type, Fd, Bound) + when is_integer(Fd), Bound == true orelse Bound == false -> + open(Protocol, Family, Type, [], ?INET_REQ_FDOPEN, + [?int32(Fd), enc_value_2(bool, Bound)]). open(Protocol, Family, Type, Opts, Req, Data) -> Drv = protocol2drv(Protocol), |