[DRE-commits] [ruby-eventmachine] 01/02: Fix memory leak caused when fixing crash
Balint Reczey
rbalint at moszumanska.debian.org
Wed Jun 29 22:10:38 UTC 2016
This is an automated email from the git hooks/post-receive script.
rbalint pushed a commit to branch jessie
in repository ruby-eventmachine.
commit e8892d4bcca559cd0c3f870a2be58e76d30beaf5
Author: Balint Reczey <balint at balintreczey.hu>
Date: Wed Jun 29 23:26:28 2016 +0200
Fix memory leak caused when fixing crash
---
...ll-raw-select-from-thread_blocking_region.patch | 25 ++++
...e-on-older-rubies-without-rb_wait_for_sin.patch | 66 ++++++++++
...o-clean-up-rb_fd_init-memory-during-shutd.patch | 42 ++++++
.../patches/0007-keep-BUILD_FOR_RUBY-compat.patch | 29 +++++
...8-fix-memory-leak-in-_CleanBadDescriptors.patch | 24 ++++
...use-rb_thread_fd_select-whenever-possible.patch | 41 ++++++
debian/patches/0010-fix-build-on-ruby-1.9.1.patch | 69 ++++++++++
...e-SelectData_t-per-reactor-to-avoid-heap-.patch | 144 +++++++++++++++++++++
debian/patches/series | 8 ++
9 files changed, 448 insertions(+)
diff --git a/debian/patches/0004-must-call-raw-select-from-thread_blocking_region.patch b/debian/patches/0004-must-call-raw-select-from-thread_blocking_region.patch
new file mode 100644
index 0000000..5c5d2bf
--- /dev/null
+++ b/debian/patches/0004-must-call-raw-select-from-thread_blocking_region.patch
@@ -0,0 +1,25 @@
+From 2fac7f4df1be8f04e4ef0d8f6887686dff66833a Mon Sep 17 00:00:00 2001
+From: Aman Gupta <aman at tmm1.net>
+Date: Mon, 9 Feb 2015 22:29:00 -0800
+Subject: [PATCH 04/11] must call raw select() from thread_blocking_region
+
+---
+ ext/em.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/ext/em.cpp b/ext/em.cpp
+index 6a3a2ef..a279893 100644
+--- a/ext/em.cpp
++++ b/ext/em.cpp
+@@ -807,7 +807,7 @@ _SelectDataSelect
+ static VALUE _SelectDataSelect (void *v)
+ {
+ SelectData_t *sd = (SelectData_t*)v;
+- sd->nSockets = rb_fd_select (sd->maxsocket+1, &(sd->fdreads), &(sd->fdwrites), &(sd->fderrors), &(sd->tv));
++ sd->nSockets = select (sd->maxsocket+1, &(sd->fdreads), &(sd->fdwrites), &(sd->fderrors), &(sd->tv));
+ return Qnil;
+ }
+ #endif
+--
+2.1.4
+
diff --git a/debian/patches/0005-epoll-kqueue-on-older-rubies-without-rb_wait_for_sin.patch b/debian/patches/0005-epoll-kqueue-on-older-rubies-without-rb_wait_for_sin.patch
new file mode 100644
index 0000000..8f1a9f4
--- /dev/null
+++ b/debian/patches/0005-epoll-kqueue-on-older-rubies-without-rb_wait_for_sin.patch
@@ -0,0 +1,66 @@
+From ee8b84b9c183edadb6d7daad61a1d7ce80a0abc2 Mon Sep 17 00:00:00 2001
+From: Aman Gupta <aman at tmm1.net>
+Date: Mon, 9 Feb 2015 22:31:25 -0800
+Subject: [PATCH 05/11] epoll/kqueue on older rubies (without
+ rb_wait_for_single_fd) should use rb_thread_select with regular fdset
+
+epoll/kqueue fds are created early during ruby boot, so it is highly
+unlikely that they will ever overflow FD_SETSIZE
+---
+ ext/em.cpp | 22 +++++++++++-----------
+ 1 file changed, 11 insertions(+), 11 deletions(-)
+
+diff --git a/ext/em.cpp b/ext/em.cpp
+index a279893..392bc9d 100644
+--- a/ext/em.cpp
++++ b/ext/em.cpp
+@@ -524,12 +524,12 @@ void EventMachine_t::_RunEpollOnce()
+ #ifdef HAVE_RB_WAIT_FOR_SINGLE_FD
+ if ((ret = rb_wait_for_single_fd(epfd, RB_WAITFD_IN|RB_WAITFD_PRI, &tv)) < 1) {
+ #else
+- rb_fdset_t fdreads;
++ fd_set fdreads;
+
+- rb_fd_init(&fdreads);
+- rb_fd_set(epfd, &fdreads);
++ FD_ZERO(&fdreads);
++ FD_SET(epfd, &fdreads);
+
+- if ((ret = rb_thread_fd_select(epfd + 1, &fdreads, NULL, NULL, &tv)) < 1) {
++ if ((ret = rb_thread_select(epfd + 1, &fdreads, NULL, NULL, &tv)) < 1) {
+ #endif
+ if (ret == -1) {
+ assert(errno != EINVAL);
+@@ -601,12 +601,12 @@ void EventMachine_t::_RunKqueueOnce()
+ #ifdef HAVE_RB_WAIT_FOR_SINGLE_FD
+ if ((ret = rb_wait_for_single_fd(kqfd, RB_WAITFD_IN|RB_WAITFD_PRI, &tv)) < 1) {
+ #else
+- rb_fdset_t fdreads;
++ fd_set fdreads;
+
+- rb_fd_init(&fdreads);
+- rb_fd_set(kqfd, &fdreads);
++ FD_ZERO(&fdreads);
++ FD_SET(kqfd, &fdreads);
+
+- if ((ret = rb_thread_fd_select(kqfd + 1, &fdreads, NULL, NULL, &tv)) < 1) {
++ if ((ret = rb_thread_select(kqfd + 1, &fdreads, NULL, NULL, &tv)) < 1) {
+ #endif
+ if (ret == -1) {
+ assert(errno != EINVAL);
+@@ -848,9 +848,9 @@ void EventMachine_t::_RunSelectOnce()
+
+ SelectData_t SelectData;
+ /*
+- rb_fdset_t fdreads, fdwrites;
+- rb_fd_init (&fdreads);
+- rb_fd_init (&fdwrites);
++ fd_set fdreads, fdwrites;
++ FD_ZERO (&fdreads);
++ FD_ZERO (&fdwrites);
+
+ int maxsocket = 0;
+ */
+--
+2.1.4
+
diff --git a/debian/patches/0006-make-sure-to-clean-up-rb_fd_init-memory-during-shutd.patch b/debian/patches/0006-make-sure-to-clean-up-rb_fd_init-memory-during-shutd.patch
new file mode 100644
index 0000000..0601cea
--- /dev/null
+++ b/debian/patches/0006-make-sure-to-clean-up-rb_fd_init-memory-during-shutd.patch
@@ -0,0 +1,42 @@
+From 18b256281c80513b8f4724261a29de4b3846249b Mon Sep 17 00:00:00 2001
+From: Aman Gupta <aman at tmm1.net>
+Date: Mon, 9 Feb 2015 22:32:19 -0800
+Subject: [PATCH 06/11] make sure to clean up rb_fd_init memory during shutdown
+
+---
+ ext/em.cpp | 6 ++++++
+ ext/em.h | 1 +
+ 2 files changed, 7 insertions(+)
+
+diff --git a/ext/em.cpp b/ext/em.cpp
+index 392bc9d..e2a0e2b 100644
+--- a/ext/em.cpp
++++ b/ext/em.cpp
+@@ -797,6 +797,12 @@ SelectData_t::SelectData_t()
+ rb_fd_init (&fderrors);
+ }
+
++SelectData_t::~SelectData_t()
++{
++ rb_fd_term (&fdreads);
++ rb_fd_term (&fdwrites);
++ rb_fd_term (&fderrors);
++}
+
+ #ifdef BUILD_FOR_RUBY
+ /*****************
+diff --git a/ext/em.h b/ext/em.h
+index 05d4310..870623d 100644
+--- a/ext/em.h
++++ b/ext/em.h
+@@ -253,6 +253,7 @@ struct SelectData_t
+ struct SelectData_t
+ {
+ SelectData_t();
++ ~SelectData_t();
+
+ int _Select();
+
+--
+2.1.4
+
diff --git a/debian/patches/0007-keep-BUILD_FOR_RUBY-compat.patch b/debian/patches/0007-keep-BUILD_FOR_RUBY-compat.patch
new file mode 100644
index 0000000..9f1edde
--- /dev/null
+++ b/debian/patches/0007-keep-BUILD_FOR_RUBY-compat.patch
@@ -0,0 +1,29 @@
+From 32b1a0e8499526247f2dccc35ec66768165994f6 Mon Sep 17 00:00:00 2001
+From: Aman Gupta <aman at tmm1.net>
+Date: Mon, 9 Feb 2015 22:40:10 -0800
+Subject: [PATCH 07/11] keep BUILD_FOR_RUBY compat
+
+---
+ ext/em.h | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/ext/em.h b/ext/em.h
+index 870623d..3799bba 100644
+--- a/ext/em.h
++++ b/ext/em.h
+@@ -57,10 +57,10 @@ See the file COPYING for complete licensing information.
+ #define RSTRING_LENINT(str) RSTRING_LEN(str)
+ #endif
+ #else
+- #define EmSelect rb_fd_select
++ #define EmSelect select
+ #endif
+
+-#ifndef rb_fd_max
++#if defined(BUILD_FOR_RUBY) && !defined(rb_fd_max)
+ #define fd_check(n) (((n) < FD_SETSIZE) ? 1 : 0*fprintf(stderr, "fd %d too large for select\n", (n)))
+ // These definitions are cribbed from include/ruby/intern.h in Ruby 1.9.3,
+ // with this change: any macros that read or write the nth element of an
+--
+2.1.4
+
diff --git a/debian/patches/0008-fix-memory-leak-in-_CleanBadDescriptors.patch b/debian/patches/0008-fix-memory-leak-in-_CleanBadDescriptors.patch
new file mode 100644
index 0000000..c7f447d
--- /dev/null
+++ b/debian/patches/0008-fix-memory-leak-in-_CleanBadDescriptors.patch
@@ -0,0 +1,24 @@
+From 01e5539bc8580cdef648bc42c0cb23ee54240d27 Mon Sep 17 00:00:00 2001
+From: Aman Gupta <aman at tmm1.net>
+Date: Mon, 9 Feb 2015 22:40:23 -0800
+Subject: [PATCH 08/11] fix memory leak in _CleanBadDescriptors
+
+---
+ ext/em.cpp | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/ext/em.cpp b/ext/em.cpp
+index e2a0e2b..eb4a080 100644
+--- a/ext/em.cpp
++++ b/ext/em.cpp
+@@ -975,6 +975,7 @@ void EventMachine_t::_CleanBadDescriptors()
+ rb_fd_set(sd, &fds);
+
+ int ret = rb_fd_select(sd + 1, &fds, NULL, NULL, &tv);
++ rb_fd_term(&fds);
+
+ if (ret == -1) {
+ if (errno == EBADF)
+--
+2.1.4
+
diff --git a/debian/patches/0009-use-rb_thread_fd_select-whenever-possible.patch b/debian/patches/0009-use-rb_thread_fd_select-whenever-possible.patch
new file mode 100644
index 0000000..3518c9e
--- /dev/null
+++ b/debian/patches/0009-use-rb_thread_fd_select-whenever-possible.patch
@@ -0,0 +1,41 @@
+From 5e990ec9429c2a5797567a735452b80a5d6dc6ff Mon Sep 17 00:00:00 2001
+From: Aman Gupta <aman at tmm1.net>
+Date: Mon, 9 Feb 2015 23:24:32 -0800
+Subject: [PATCH 09/11] use rb_thread_fd_select whenever possible
+
+Conflicts:
+ ext/em.cpp
+---
+ ext/em.cpp | 9 +++++++--
+ 1 file changed, 7 insertions(+), 2 deletions(-)
+
+diff --git a/ext/em.cpp b/ext/em.cpp
+index eb4a080..27ea088 100644
+--- a/ext/em.cpp
++++ b/ext/em.cpp
+@@ -809,7 +809,8 @@ SelectData_t::~SelectData_t()
+ _SelectDataSelect
+ *****************/
+
+-#ifdef HAVE_TBR
++
++#if !defined(HAVE_RB_THREAD_FD_SELECT) && defined(HAVE_TBR)
+ static VALUE _SelectDataSelect (void *v)
+ {
+ SelectData_t *sd = (SelectData_t*)v;
+@@ -824,7 +825,11 @@ SelectData_t::_Select
+
+ int SelectData_t::_Select()
+ {
+- #ifdef HAVE_TBR
++ #if defined(HAVE_RB_THREAD_FD_SELECT)
++ // added in ruby 1.9.2
++ return rb_thread_fd_select (maxsocket+1, &fdreads, &fdwrites, &fderrors, &tv);
++ #elif defined(HAVE_TBR)
++ // added in ruby 1.9.1, deprecated in ruby 2.0.0
+ rb_thread_blocking_region (_SelectDataSelect, (void*)this, RUBY_UBF_IO, 0);
+ return nSockets;
+ #endif
+--
+2.1.4
+
diff --git a/debian/patches/0010-fix-build-on-ruby-1.9.1.patch b/debian/patches/0010-fix-build-on-ruby-1.9.1.patch
new file mode 100644
index 0000000..29d77e6
--- /dev/null
+++ b/debian/patches/0010-fix-build-on-ruby-1.9.1.patch
@@ -0,0 +1,69 @@
+From 6c59b07c500b36274788abe47b34103a3a8586a6 Mon Sep 17 00:00:00 2001
+From: Aman Gupta <aman at tmm1.net>
+Date: Mon, 9 Feb 2015 23:45:00 -0800
+Subject: [PATCH 10/11] fix build on ruby 1.9.1
+
+Conflicts:
+ ext/extconf.rb
+---
+ ext/em.cpp | 2 +-
+ ext/em.h | 9 +++++++--
+ ext/extconf.rb | 2 ++
+ 3 files changed, 10 insertions(+), 3 deletions(-)
+
+diff --git a/ext/em.cpp b/ext/em.cpp
+index 27ea088..315d7d7 100644
+--- a/ext/em.cpp
++++ b/ext/em.cpp
+@@ -814,7 +814,7 @@ _SelectDataSelect
+ static VALUE _SelectDataSelect (void *v)
+ {
+ SelectData_t *sd = (SelectData_t*)v;
+- sd->nSockets = select (sd->maxsocket+1, &(sd->fdreads), &(sd->fdwrites), &(sd->fderrors), &(sd->tv));
++ sd->nSockets = select (sd->maxsocket+1, rb_fd_ptr(&(sd->fdreads)), rb_fd_ptr(&(sd->fdwrites)), rb_fd_ptr(&(sd->fderrors)), &(sd->tv));
+ return Qnil;
+ }
+ #endif
+diff --git a/ext/em.h b/ext/em.h
+index 3799bba..86909ad 100644
+--- a/ext/em.h
++++ b/ext/em.h
+@@ -22,7 +22,12 @@ See the file COPYING for complete licensing information.
+
+ #ifdef BUILD_FOR_RUBY
+ #include <ruby.h>
+- #define EmSelect rb_thread_fd_select
++ #ifdef HAVE_RB_THREAD_FD_SELECT
++ #define EmSelect rb_thread_fd_select
++ #else
++ // ruby 1.9.1 and below
++ #define EmSelect rb_thread_select
++ #endif
+
+ #ifdef HAVE_RB_WAIT_FOR_SINGLE_FD
+ #include <ruby/io.h>
+@@ -60,7 +65,7 @@ See the file COPYING for complete licensing information.
+ #define EmSelect select
+ #endif
+
+-#if defined(BUILD_FOR_RUBY) && !defined(rb_fd_max)
++#if defined(BUILD_FOR_RUBY) && !defined(HAVE_RB_FDSET_T)
+ #define fd_check(n) (((n) < FD_SETSIZE) ? 1 : 0*fprintf(stderr, "fd %d too large for select\n", (n)))
+ // These definitions are cribbed from include/ruby/intern.h in Ruby 1.9.3,
+ // with this change: any macros that read or write the nth element of an
+diff --git a/ext/extconf.rb b/ext/extconf.rb
+index 448802a..28cd687 100644
+--- a/ext/extconf.rb
++++ b/ext/extconf.rb
+@@ -70,6 +70,8 @@ add_define "HAVE_TBR" if have_func('rb_thread_blocking_region')# and have_macro(
+ add_define "HAVE_INOTIFY" if inotify = have_func('inotify_init', 'sys/inotify.h')
+ add_define "HAVE_OLD_INOTIFY" if !inotify && have_macro('__NR_inotify_init', 'sys/syscall.h')
+ add_define 'HAVE_WRITEV' if have_func('writev', 'sys/uio.h')
++add_define 'HAVE_RB_THREAD_FD_SELECT' if have_func('rb_thread_fd_select')
++add_define 'HAVE_RB_FDSET_T' if have_type('rb_fdset_t', 'ruby/intern.h')
+
+ have_func('rb_wait_for_single_fd')
+ have_func('rb_enable_interrupt')
+--
+2.1.4
+
diff --git a/debian/patches/0011-allocate-one-SelectData_t-per-reactor-to-avoid-heap-.patch b/debian/patches/0011-allocate-one-SelectData_t-per-reactor-to-avoid-heap-.patch
new file mode 100644
index 0000000..d991720
--- /dev/null
+++ b/debian/patches/0011-allocate-one-SelectData_t-per-reactor-to-avoid-heap-.patch
@@ -0,0 +1,144 @@
+From 6e75c507e1bb27e44f205a4ee3e1b138bbbff5ab Mon Sep 17 00:00:00 2001
+From: Aman Gupta <aman at tmm1.net>
+Date: Mon, 9 Feb 2015 23:59:11 -0800
+Subject: [PATCH 11/11] allocate one SelectData_t per reactor to avoid heap
+ allocation on every tick
+
+Conflicts:
+ ext/em.cpp
+---
+ ext/em.cpp | 43 ++++++++++++++++++++-----------------------
+ ext/em.h | 3 ++-
+ 2 files changed, 22 insertions(+), 24 deletions(-)
+
+diff --git a/ext/em.cpp b/ext/em.cpp
+index 315d7d7..326dbe8 100644
+--- a/ext/em.cpp
++++ b/ext/em.cpp
+@@ -101,6 +101,7 @@ EventMachine_t::EventMachine_t (EMCallback event_callback):
+ #endif
+
+ _InitializeLoopBreaker();
++ SelectData = new SelectData_t();
+ }
+
+
+@@ -130,6 +131,8 @@ EventMachine_t::~EventMachine_t()
+ close (epfd);
+ if (kqfd != -1)
+ close (kqfd);
++
++ delete SelectData;
+ }
+
+
+@@ -856,24 +859,18 @@ void EventMachine_t::_RunSelectOnce()
+ // epoll will be effective if we provide it as an alternative,
+ // however it has the same problem interoperating with Ruby
+ // threads that select does.
+-
+- SelectData_t SelectData;
+- /*
+- fd_set fdreads, fdwrites;
+- FD_ZERO (&fdreads);
+- FD_ZERO (&fdwrites);
+-
+- int maxsocket = 0;
+- */
++ rb_fd_zero (&SelectData->fdreads);
++ rb_fd_zero (&SelectData->fdwrites);
++ rb_fd_zero (&SelectData->fderrors);
+
+ // Always read the loop-breaker reader.
+ // Changed 23Aug06, provisionally implemented for Windows with a UDP socket
+ // running on localhost with a randomly-chosen port. (*Puke*)
+ // Windows has a version of the Unix pipe() library function, but it doesn't
+ // give you back descriptors that are selectable.
+- rb_fd_set (LoopBreakerReader, &(SelectData.fdreads));
+- if (SelectData.maxsocket < LoopBreakerReader)
+- SelectData.maxsocket = LoopBreakerReader;
++ rb_fd_set (LoopBreakerReader, &(SelectData->fdreads));
++ if (SelectData->maxsocket < LoopBreakerReader)
++ SelectData->maxsocket = LoopBreakerReader;
+
+ // prepare the sockets for reading and writing
+ size_t i;
+@@ -886,27 +883,27 @@ void EventMachine_t::_RunSelectOnce()
+ assert (sd != INVALID_SOCKET);
+
+ if (ed->SelectForRead())
+- rb_fd_set (sd, &(SelectData.fdreads));
++ rb_fd_set (sd, &(SelectData->fdreads));
+ if (ed->SelectForWrite())
+- rb_fd_set (sd, &(SelectData.fdwrites));
++ rb_fd_set (sd, &(SelectData->fdwrites));
+
+ #ifdef OS_WIN32
+ /* 21Sep09: on windows, a non-blocking connect() that fails does not come up as writable.
+ Instead, it is added to the error set. See http://www.mail-archive.com/openssl-users@openssl.org/msg58500.html
+ */
+- rb_fd_set (sd, &(SelectData.fderrors));
++ rb_fd_set (sd, &(SelectData->fderrors));
+ #endif
+
+- if (SelectData.maxsocket < sd)
+- SelectData.maxsocket = sd;
++ if (SelectData->maxsocket < sd)
++ SelectData->maxsocket = sd;
+ }
+
+
+ { // read and write the sockets
+ //timeval tv = {1, 0}; // Solaris fails if the microseconds member is >= 1000000.
+ //timeval tv = Quantum;
+- SelectData.tv = _TimeTilNextEvent();
+- int s = SelectData._Select();
++ SelectData->tv = _TimeTilNextEvent();
++ int s = SelectData->_Select();
+ //rb_thread_blocking_region(xxx,(void*)&SelectData,RUBY_UBF_IO,0);
+ //int s = EmSelect (SelectData.maxsocket+1, &(SelectData.fdreads), &(SelectData.fdwrites), NULL, &(SelectData.tv));
+ //int s = SelectData.nSockets;
+@@ -929,15 +926,15 @@ void EventMachine_t::_RunSelectOnce()
+ continue;
+ assert (sd != INVALID_SOCKET);
+
+- if (rb_fd_isset (sd, &(SelectData.fdwrites)))
++ if (rb_fd_isset (sd, &(SelectData->fdwrites)))
+ ed->Write();
+- if (rb_fd_isset (sd, &(SelectData.fdreads)))
++ if (rb_fd_isset (sd, &(SelectData->fdreads)))
+ ed->Read();
+- if (rb_fd_isset (sd, &(SelectData.fderrors)))
++ if (rb_fd_isset (sd, &(SelectData->fderrors)))
+ ed->HandleError();
+ }
+
+- if (rb_fd_isset (LoopBreakerReader, &(SelectData.fdreads)))
++ if (rb_fd_isset (LoopBreakerReader, &(SelectData->fdreads)))
+ _ReadLoopBreaker();
+ }
+ else if (s < 0) {
+diff --git a/ext/em.h b/ext/em.h
+index 86909ad..cdcca23 100644
+--- a/ext/em.h
++++ b/ext/em.h
+@@ -91,7 +91,7 @@ typedef fd_set rb_fdset_t;
+
+ class EventableDescriptor;
+ class InotifyDescriptor;
+-
++struct SelectData_t;
+
+ /********************
+ class EventMachine_t
+@@ -234,6 +234,7 @@ class EventMachine_t
+
+ private:
+ bool bTerminateSignalReceived;
++ SelectData_t *SelectData;
+
+ bool bEpoll;
+ int epfd; // Epoll file-descriptor
+--
+2.1.4
+
diff --git a/debian/patches/series b/debian/patches/series
index cd00754..7020a16 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -2,3 +2,11 @@ skip_tests_using_network.patch
0001-use-ruby-select-api-with-expandable-fd-sets.patch
0002-add-stubs-with-warnings-for-1.8.7-and-1.9.0.patch
0003-add-comment-about-where-the-macros-came-from.patch
+0004-must-call-raw-select-from-thread_blocking_region.patch
+0005-epoll-kqueue-on-older-rubies-without-rb_wait_for_sin.patch
+0006-make-sure-to-clean-up-rb_fd_init-memory-during-shutd.patch
+0007-keep-BUILD_FOR_RUBY-compat.patch
+0008-fix-memory-leak-in-_CleanBadDescriptors.patch
+0009-use-rb_thread_fd_select-whenever-possible.patch
+0010-fix-build-on-ruby-1.9.1.patch
+0011-allocate-one-SelectData_t-per-reactor-to-avoid-heap-.patch
--
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