peterwang · December 13, 2016 11:45
diff --git a/*php5-fpm-coredump-backtrace* b/*php5-fpm-coredump-backtrace*
 Description:
 php5-fpm process coredump-ed when apcu_clear_cache() and opcache_reset() was called

 OS:
 Linux www 3.2.0-54-virtual #82-Ubuntu SMP Tue Sep 10 20:31:18 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

 Packages:
 ii  php-apc                                     4.0.2-2+debphp.org~precise+1        APC User Cache for PHP 5 (transitional package)
 ii  php-pear                                    5.5.8+dfsg-3+sury.org~precise+2     PEAR - PHP Extension and Application Repository
 ii  php5                                        5.5.8+dfsg-3+sury.org~precise+2     server-side, HTML-embedded scripting language (metapackage)
 ii  php5-apcu                                   4.0.2-2+debphp.org~precise+1        APC User Cache for PHP 5
 ii  php5-cli                                    5.5.8+dfsg-3+sury.org~precise+2     command-line interpreter for the php5 scripting language
 ii  php5-common                                 5.5.8+dfsg-3+sury.org~precise+2     Common files for packages built from the php5 source
 ii  php5-curl                                   5.5.8+dfsg-3+sury.org~precise+2     CURL module for php5
 ii  php5-dbg                                    5.5.8+dfsg-3+sury.org~precise+2     Debug symbols for PHP5
 ii  php5-dev                                    5.5.8+dfsg-3+sury.org~precise+2     Files for PHP5 module development
 ii  php5-fpm                                    5.5.8+dfsg-3+sury.org~precise+2     server-side, HTML-embedded scripting language (FPM-CGI binary)
 ii  php5-gd                                     5.5.8+dfsg-3+sury.org~precise+2     GD module for php5
 ii  php5-intl                                   5.5.8+dfsg-3+sury.org~precise+2     internationalisation module for php5
 ii  php5-json                                   1.3.2-3+debphp.org~precise+1        JSON module for php5
 ii  php5-pgsql                                  5.5.8+dfsg-3+sury.org~precise+2     PostgreSQL module for php5
 ii  php5-readline                               5.5.8+dfsg-3+sury.org~precise+2     Readline module for php5

 PHP version:
 PHP 5.5.8-3+sury.org~precise+2 (cli) (built: Jan 29 2014 13:23:55)
 Copyright (c) 1997-2013 The PHP Group
 Zend Engine v2.5.0, Copyright (c) 1998-2013 Zend Technologies
    with Zend OPcache v7.0.3-dev, Copyright (c) 1999-2013, by Zend Technologies

 GDB backtrace:
 gdb /usr/sbin/php5-fpm /tmp/core-php5-fpm.27721
 GNU gdb (Ubuntu/Linaro 7.4-2012.04-0ubuntu2.1) 7.4-2012.04
 Copyright (C) 2012 Free Software Foundation, Inc.
 License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
 This is free software: you are free to change and redistribute it.
 There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
 and "show warranty" for details.
 This GDB was configured as "x86_64-linux-gnu".
 For bug reporting instructions, please see:
 <http://bugs.launchpad.net/gdb-linaro/>...
 Reading symbols from /usr/sbin/php5-fpm...Reading symbols from /usr/lib/debug/usr/sbin/php5-fpm...done.
 done.
 [New LWP 27721]

 warning: Can't read pathname for load map: Input/output error.
 [Thread debugging using libthread_db enabled]
 Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
 Core was generated by `php-fpm: pool www                                         '.
 Program terminated with signal 11, Segmentation fault.
 #0  zend_mm_add_to_free_list (heap=<optimized out>, mm_block=0x261a920) at /build/buildd/php5-5.5.8+dfsg/Zend/zend_alloc.c:752
 752	/build/buildd/php5-5.5.8+dfsg/Zend/zend_alloc.c: No such file or directory.
 (gdb) set height 0
 (gdb) bt full
 #0  zend_mm_add_to_free_list (heap=<optimized out>, mm_block=0x261a920) at /build/buildd/php5-5.5.8+dfsg/Zend/zend_alloc.c:752
        prev = 0x29520a800
        m = 9223372036854775808
        p = 0x24adbd7
        size = 616
        index = 9
 #1  0x00000000006b8290 in _zend_mm_free_int (heap=0x157e300, p=0x261a930) at /build/buildd/php5-5.5.8+dfsg/Zend/zend_alloc.c:2118
        mm_block = 0x261a920
        next_block = 0x261a9d0
        size = 616
 #2  0x00000000006ee56e in zend_hash_destroy (ht=0xe62550) at /build/buildd/php5-5.5.8+dfsg/Zend/zend_hash.c:565
        p = 0x262cee8
        q = 0x261a930
 #3  0x00000000006d0823 in shutdown_executor () at /build/buildd/php5-5.5.8+dfsg/Zend/zend_execute_API.c:322
        __orig_bailout = 0x7fff828be0a0
        __bailout = {{__jmpbuf = {15082400, 2539187054545762541, 140659029368616, 0, 140659029365384, 36431296, -2539461879295084307, 2539187060597225709}, __mask_was_saved = 0,
            __saved_mask = {__val = {2539187248369006829, 0, 140658992555904, 15059776, 0, 140659029601344, 140655883976704, 140659029601392, 39585248, 39473032, 15082136, 1,
                140659029368616, 0, 7204110, 15082048}}}}
 #4  0x00000000006e0165 in zend_deactivate () at /build/buildd/php5-5.5.8+dfsg/Zend/zend.c:935
 No locals.
 #5  0x000000000067e3f7 in php_request_shutdown (dummy=<optimized out>) at /build/buildd/php5-5.5.8+dfsg/main/main.c:1808
        report_memleaks = 1 '\001'
 #6  0x00000000004665c6 in main (argc=<optimized out>, argv=<optimized out>) at /build/buildd/php5-5.5.8+dfsg/sapi/fpm/fpm/fpm_main.c:1961
        primary_script = <optimized out>
        __orig_bailout = 0x0
        __bailout = {{__jmpbuf = {0, -2539461812417955603, 3, 140735383603516, 0, 4294967295, -2539461879263627027, 2539187394369976557}, __mask_was_saved = 0, __saved_mask = {
              __val = {0 <repeats 16 times>}}}}
        exit_status = 0
        c = <optimized out>
        use_extended_info = 0
        file_handle = {type = ZEND_HANDLE_MAPPED, filename = 0x7fedbb7ae3c0 "\260\350}\273\355\177", opened_path = 0x0, handle = {fd = -1149365576, fp = 0x7fedbb7e12b8,
            stream = {handle = 0x7fedbb7e12b8, isatty = 0, mmap = {len = 1806, pos = 0, map = 0x0, buf = 0x7fedbb646000 <Address 0x7fedbb646000 out of bounds>, old_handle = 0x0,
                old_closer = 0}, reader = 0x695c20 <_php_stream_read>, fsizer = 0x67c450 <php_zend_stream_fsizer>, closer = 0x67c440 <php_zend_stream_mmap_closer>}},
          free_filename = 0 '\000'}
        orig_optind = 1
        orig_optarg = 0x0
        ini_entries_len = <optimized out>
        max_requests = 100
        requests = 80
        fcgi_fd = 15081056
        request = {listen_socket = 0, fd = 6, id = 1, keep = 0, closed = 0, in_len = 0, in_pad = 1, out_hdr = 0x7fff828be4f0, out_pos = 0x7fff828be835 "",
          out_buf = "\001\006\000\001\000\033\005\000Cache-Control: max-age=0, private, no-cache, no-store, must-revalidate, no-transform\r\nX-Hide-Out-Localized: false\r\nVary: Accept-Encoding\r\nAccess-Control-Allow-Origin: *\r\nAccess-Control-Allow-H"..., reserved = '\000' <repeats 15 times>, env = 0x7fedbb7ad040}
        fpm_config = 0x7fff828c093c ""
        fpm_prefix = 0x0
        fpm_pid = 0x0
        test_conf = 0
        force_daemon = <optimized out>
        php_information = 0
        php_allow_to_run_as_root = 0
        __func__ = "main"
 (gdb) quit
	Description:
	php5-fpm process coredump-ed when apcu_clear_cache() and opcache_reset() was called

	OS:
	Linux www 3.2.0-54-virtual #82-Ubuntu SMP Tue Sep 10 20:31:18 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

	Packages:
	ii php-apc 4.0.2-2+debphp.org~precise+1 APC User Cache for PHP 5 (transitional package)
	ii php-pear 5.5.8+dfsg-3+sury.org~precise+2 PEAR - PHP Extension and Application Repository
	ii php5 5.5.8+dfsg-3+sury.org~precise+2 server-side, HTML-embedded scripting language (metapackage)
	ii php5-apcu 4.0.2-2+debphp.org~precise+1 APC User Cache for PHP 5
	ii php5-cli 5.5.8+dfsg-3+sury.org~precise+2 command-line interpreter for the php5 scripting language
	ii php5-common 5.5.8+dfsg-3+sury.org~precise+2 Common files for packages built from the php5 source
	ii php5-curl 5.5.8+dfsg-3+sury.org~precise+2 CURL module for php5
	ii php5-dbg 5.5.8+dfsg-3+sury.org~precise+2 Debug symbols for PHP5
	ii php5-dev 5.5.8+dfsg-3+sury.org~precise+2 Files for PHP5 module development
	ii php5-fpm 5.5.8+dfsg-3+sury.org~precise+2 server-side, HTML-embedded scripting language (FPM-CGI binary)
	ii php5-gd 5.5.8+dfsg-3+sury.org~precise+2 GD module for php5
	ii php5-intl 5.5.8+dfsg-3+sury.org~precise+2 internationalisation module for php5
	ii php5-json 1.3.2-3+debphp.org~precise+1 JSON module for php5
	ii php5-pgsql 5.5.8+dfsg-3+sury.org~precise+2 PostgreSQL module for php5
	ii php5-readline 5.5.8+dfsg-3+sury.org~precise+2 Readline module for php5

	PHP version:
	PHP 5.5.8-3+sury.org~precise+2 (cli) (built: Jan 29 2014 13:23:55)
	Copyright (c) 1997-2013 The PHP Group
	Zend Engine v2.5.0, Copyright (c) 1998-2013 Zend Technologies
	with Zend OPcache v7.0.3-dev, Copyright (c) 1999-2013, by Zend Technologies

	GDB backtrace:
	gdb /usr/sbin/php5-fpm /tmp/core-php5-fpm.27721
	GNU gdb (Ubuntu/Linaro 7.4-2012.04-0ubuntu2.1) 7.4-2012.04
	Copyright (C) 2012 Free Software Foundation, Inc.
	License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
	This is free software: you are free to change and redistribute it.
	There is NO WARRANTY, to the extent permitted by law. Type "show copying"
	and "show warranty" for details.
	This GDB was configured as "x86_64-linux-gnu".
	For bug reporting instructions, please see:
	<http://bugs.launchpad.net/gdb-linaro/>...
	Reading symbols from /usr/sbin/php5-fpm...Reading symbols from /usr/lib/debug/usr/sbin/php5-fpm...done.
	done.
	[New LWP 27721]

	warning: Can't read pathname for load map: Input/output error.
	[Thread debugging using libthread_db enabled]
	Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
	Core was generated by `php-fpm: pool www '.
	Program terminated with signal 11, Segmentation fault.
	#0 zend_mm_add_to_free_list (heap=<optimized out>, mm_block=0x261a920) at /build/buildd/php5-5.5.8+dfsg/Zend/zend_alloc.c:752
	752 /build/buildd/php5-5.5.8+dfsg/Zend/zend_alloc.c: No such file or directory.
	(gdb) set height 0
	(gdb) bt full
	#0 zend_mm_add_to_free_list (heap=<optimized out>, mm_block=0x261a920) at /build/buildd/php5-5.5.8+dfsg/Zend/zend_alloc.c:752
	prev = 0x29520a800
	m = 9223372036854775808
	p = 0x24adbd7
	size = 616
	index = 9
	#1 0x00000000006b8290 in _zend_mm_free_int (heap=0x157e300, p=0x261a930) at /build/buildd/php5-5.5.8+dfsg/Zend/zend_alloc.c:2118
	mm_block = 0x261a920
	next_block = 0x261a9d0
	size = 616
	#2 0x00000000006ee56e in zend_hash_destroy (ht=0xe62550) at /build/buildd/php5-5.5.8+dfsg/Zend/zend_hash.c:565
	p = 0x262cee8
	q = 0x261a930
	#3 0x00000000006d0823 in shutdown_executor () at /build/buildd/php5-5.5.8+dfsg/Zend/zend_execute_API.c:322
	__orig_bailout = 0x7fff828be0a0
	__bailout = {{__jmpbuf = {15082400, 2539187054545762541, 140659029368616, 0, 140659029365384, 36431296, -2539461879295084307, 2539187060597225709}, __mask_was_saved = 0,
	__saved_mask = {__val = {2539187248369006829, 0, 140658992555904, 15059776, 0, 140659029601344, 140655883976704, 140659029601392, 39585248, 39473032, 15082136, 1,
	140659029368616, 0, 7204110, 15082048}}}}
	#4 0x00000000006e0165 in zend_deactivate () at /build/buildd/php5-5.5.8+dfsg/Zend/zend.c:935
	No locals.
	#5 0x000000000067e3f7 in php_request_shutdown (dummy=<optimized out>) at /build/buildd/php5-5.5.8+dfsg/main/main.c:1808
	report_memleaks = 1 '\001'
	#6 0x00000000004665c6 in main (argc=<optimized out>, argv=<optimized out>) at /build/buildd/php5-5.5.8+dfsg/sapi/fpm/fpm/fpm_main.c:1961
	primary_script = <optimized out>
	__orig_bailout = 0x0
	__bailout = {{__jmpbuf = {0, -2539461812417955603, 3, 140735383603516, 0, 4294967295, -2539461879263627027, 2539187394369976557}, __mask_was_saved = 0, __saved_mask = {
	__val = {0 <repeats 16 times>}}}}
	exit_status = 0
	c = <optimized out>
	use_extended_info = 0
	file_handle = {type = ZEND_HANDLE_MAPPED, filename = 0x7fedbb7ae3c0 "\260\350}\273\355\177", opened_path = 0x0, handle = {fd = -1149365576, fp = 0x7fedbb7e12b8,
	stream = {handle = 0x7fedbb7e12b8, isatty = 0, mmap = {len = 1806, pos = 0, map = 0x0, buf = 0x7fedbb646000 <Address 0x7fedbb646000 out of bounds>, old_handle = 0x0,
	old_closer = 0}, reader = 0x695c20 <_php_stream_read>, fsizer = 0x67c450 <php_zend_stream_fsizer>, closer = 0x67c440 <php_zend_stream_mmap_closer>}},
	free_filename = 0 '\000'}
	orig_optind = 1
	orig_optarg = 0x0
	ini_entries_len = <optimized out>
	max_requests = 100
	requests = 80
	fcgi_fd = 15081056
	request = {listen_socket = 0, fd = 6, id = 1, keep = 0, closed = 0, in_len = 0, in_pad = 1, out_hdr = 0x7fff828be4f0, out_pos = 0x7fff828be835 "",
	out_buf = "\001\006\000\001\000\033\005\000Cache-Control: max-age=0, private, no-cache, no-store, must-revalidate, no-transform\r\nX-Hide-Out-Localized: false\r\nVary: Accept-Encoding\r\nAccess-Control-Allow-Origin: *\r\nAccess-Control-Allow-H"..., reserved = '\000' <repeats 15 times>, env = 0x7fedbb7ad040}
	fpm_config = 0x7fff828c093c ""
	fpm_prefix = 0x0
	fpm_pid = 0x0
	test_conf = 0
	force_daemon = <optimized out>
	php_information = 0
	php_allow_to_run_as_root = 0
	__func__ = "main"
	(gdb) quit