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-rw-r--r--erts/doc/src/notes.xml45
-rw-r--r--erts/emulator/drivers/common/inet_drv.c45
-rw-r--r--erts/vsn.mk2
3 files changed, 75 insertions, 17 deletions
diff --git a/erts/doc/src/notes.xml b/erts/doc/src/notes.xml
index 722f7aaebd..ff7d593edb 100644
--- a/erts/doc/src/notes.xml
+++ b/erts/doc/src/notes.xml
@@ -31,6 +31,40 @@
</header>
<p>This document describes the changes made to the ERTS application.</p>
+<section><title>Erts 9.0.2</title>
+
+ <section><title>Fixed Bugs and Malfunctions</title>
+ <list>
+ <item>
+ <p>
+ Added missing release notes for OTP-14491 ("performance
+ bug in pre-allocators") which was included in erts-9.0.1
+ (OTP-20.0.1).</p>
+ <p>
+ Own Id: OTP-14494</p>
+ </item>
+ <item>
+ <p>Fixed a bug that prevented TCP sockets from being
+ closed properly on send timeouts.</p>
+ <p>
+ Own Id: OTP-14509</p>
+ </item>
+ <item>
+ <p>
+ Fixed bug in operator <c>bxor</c> causing erroneuos
+ result when one operand is a big <em>negative</em>
+ integer with the lowest <c>N*W</c> bits as zero and the
+ other operand not larger than <c>N*W</c> bits. <c>N</c>
+ is an integer of 1 or larger and <c>W</c> is 32 or 64
+ depending on word size.</p>
+ <p>
+ Own Id: OTP-14514</p>
+ </item>
+ </list>
+ </section>
+
+</section>
+
<section><title>Erts 9.0.1</title>
<section><title>Fixed Bugs and Malfunctions</title>
@@ -63,6 +97,17 @@
<p>
Own Id: OTP-14484</p>
</item>
+ <item>
+ <p>
+ Fix performance bug in pre-allocators that could cause
+ them to permanently fall back on normal more expensive memory
+ allocation. Pre-allocators are used for quick allocation
+ of short lived meta data used by messages and other
+ scheduled tasks. Bug exists since OTP_R15B02.
+ [this release note was missing in erts-9.0.1]</p>
+ <p>
+ Own Id: OTP-14491</p>
+ </item>
</list>
</section>
diff --git a/erts/emulator/drivers/common/inet_drv.c b/erts/emulator/drivers/common/inet_drv.c
index fe421bfe12..7b1f4a0e9c 100644
--- a/erts/emulator/drivers/common/inet_drv.c
+++ b/erts/emulator/drivers/common/inet_drv.c
@@ -1249,6 +1249,8 @@ static int tcp_shutdown_error(tcp_descriptor* desc, int err);
static int tcp_inet_output(tcp_descriptor* desc, HANDLE event);
static int tcp_inet_input(tcp_descriptor* desc, HANDLE event);
+static void tcp_desc_close(tcp_descriptor*);
+
#ifdef HAVE_UDP
typedef struct {
inet_descriptor inet; /* common data structure (DON'T MOVE) */
@@ -9248,16 +9250,31 @@ static void tcp_inet_stop(ErlDrvData e)
tcp_descriptor* desc = (tcp_descriptor*)e;
DEBUGF(("tcp_inet_stop(%ld) {s=%d\r\n",
(long)desc->inet.port, desc->inet.s));
+
tcp_close_check(desc);
- /* free input buffer & output buffer */
- if (desc->i_buf != NULL)
- release_buffer(desc->i_buf);
- desc->i_buf = NULL; /* net_mess2 may call this function recursively when
- faulty messages arrive on dist ports*/
+ tcp_clear_input(desc);
+
DEBUGF(("tcp_inet_stop(%ld) }\r\n", (long)desc->inet.port));
inet_stop(INETP(desc));
}
+/* Closes a tcp descriptor without leaving things hanging; the VM keeps trying
+ * to flush IO queues as long as it contains anything even after the port has
+ * been closed from the erlang side, which is desired behavior (Think escripts
+ * writing to files) but pretty hopeless if the underlying fd has been set to
+ * INVALID_SOCKET through desc_close.
+ *
+ * This function should be used in place of desc_close/erl_inet_close in all
+ * TCP-related operations. Note that this only closes the desc cleanly; it
+ * will be freed through tcp_inet_stop later on. */
+static void tcp_desc_close(tcp_descriptor* desc)
+{
+ tcp_clear_input(desc);
+ tcp_clear_output(desc);
+
+ erl_inet_close(INETP(desc));
+}
+
/* TCP requests from Erlang */
static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData e, unsigned int cmd,
char* buf, ErlDrvSizeT len,
@@ -9502,7 +9519,7 @@ static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData e, unsigned int cmd,
case INET_REQ_CLOSE:
DEBUGF(("tcp_inet_ctl(%ld): CLOSE\r\n", (long)desc->inet.port));
tcp_close_check(desc);
- erl_inet_close(INETP(desc));
+ tcp_desc_close(desc);
return ctl_reply(INET_REP_OK, NULL, 0, rbuf, rsize);
@@ -9626,7 +9643,7 @@ static void tcp_inet_timeout(ErlDrvData e)
set_busy_port(desc->inet.port, 0);
inet_reply_error_am(INETP(desc), am_timeout);
if (desc->send_timeout_close) {
- erl_inet_close(INETP(desc));
+ tcp_desc_close(desc);
}
}
else {
@@ -9640,7 +9657,7 @@ static void tcp_inet_timeout(ErlDrvData e)
else if ((state & INET_STATE_CONNECTING) == INET_STATE_CONNECTING) {
/* assume connect timeout */
/* close the socket since it's not usable (see man pages) */
- erl_inet_close(INETP(desc));
+ tcp_desc_close(desc);
async_error_am(INETP(desc), am_timeout);
}
else if ((state & INET_STATE_ACCEPTING) == INET_STATE_ACCEPTING) {
@@ -9803,8 +9820,7 @@ static int tcp_recv_closed(tcp_descriptor* desc)
/* passive mode do not terminate port ! */
tcp_clear_input(desc);
if (desc->inet.exitf) {
- tcp_clear_output(desc);
- desc_close(INETP(desc));
+ tcp_desc_close(desc);
} else {
desc_close_read(INETP(desc));
}
@@ -9847,7 +9863,7 @@ static int tcp_recv_error(tcp_descriptor* desc, int err)
driver_cancel_timer(desc->inet.port);
tcp_clear_input(desc);
if (desc->inet.exitf) {
- desc_close(INETP(desc));
+ tcp_desc_close(desc);
} else {
desc_close_read(INETP(desc));
}
@@ -10496,9 +10512,6 @@ static int tcp_send_or_shutdown_error(tcp_descriptor* desc, int err)
set_busy_port(desc->inet.port, 0);
}
- tcp_clear_output(desc);
- tcp_clear_input(desc);
-
/*
* We used to handle "expected errors" differently from unexpected ones.
* Now we handle all errors in the same way (unless the show_econnreset
@@ -10519,10 +10532,10 @@ static int tcp_send_or_shutdown_error(tcp_descriptor* desc, int err)
if (desc->inet.exitf)
driver_exit(desc->inet.port, 0);
else
- desc_close(INETP(desc));
+ tcp_desc_close(desc);
} else {
tcp_close_check(desc);
- erl_inet_close(INETP(desc));
+ tcp_desc_close(desc);
if (desc->inet.caller) {
if (show_econnreset)
diff --git a/erts/vsn.mk b/erts/vsn.mk
index c4bef03e94..59699c6505 100644
--- a/erts/vsn.mk
+++ b/erts/vsn.mk
@@ -18,7 +18,7 @@
# %CopyrightEnd%
#
-VSN = 9.0.1
+VSN = 9.0.2
# Port number 4365 in 4.2
# Port number 4366 in 4.3
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 22:06:54 +0000