Is this a new issue in 4.0.5? Or did the problem exist in older versions
as well?
Zeev
At 18:44 21/3/2001, Dan Kalowsky wrote:
>Follow up on the earlier reporting of having memory issues to 4.0.5RC1.
>
>We've been able to reproduce the problem once again. Although it seems
>to be only happening after EXTREMELY long periods of time and continuous
>heavy usage during that time. Currently I'm not able to point exactly
>to any specific area causing it (I know the script, but the line is
>unknown).... so let's see what I can give you to help debug this a bit
>further....
>
>This time around we've got a bit more information for your enjoyment
>though...
>Snippits from the /var/log/httpd-error.log file:
>
>[Fri Mar 16 09:42:37 2001] [notice] SIGHUP received. Attempting to
>restart
>[Fri Mar 16 09:42:38 2001] [notice] Apache/1.3.17 (Unix) mod_perl/1.24
>PHP/4.0.5RC1 configured -- resuming normal operations
>zend_hash.c(202) : Freeing 0x083066E4 (20 bytes),
>script=/usr/local/www/data/Login/users_login.php
>zend_API.c(219) : Freeing 0x08173124 (48 bytes),
>script=/usr/local/www/data/Login/users_login.php
>zend_API.c(208) : Actual location (location was relayed)
>zend_hash.c(202) : Freeing 0x0835E6E4 (20 bytes),
>script=/usr/local/www/data/Login/users_login.php
>zend_API.c(219) : Freeing 0x081E37A4 (48 bytes),
>script=/usr/local/www/data/Login/users_login.php
>zend_API.c(208) : Actual location (location was relayed)
>[Fri Mar 16 17:13:05 2001] [error] [client 172.16.64.5] File does not
>exist: /usr/local/www/data/interactive/internet/index.html
>
>
>Yet again even more..... from Friday March 19th....
>zend_hash.c(202) : Freeing 0x081B9E24 (20 bytes),
>script=/usr/local/www/data/Login/users_login.php
>zend_API.c(219) : Freeing 0x081B86A4 (48 bytes),
>script=/usr/local/www/data/Login/users_login.php
>zend_API.c(208) : Actual location (location was relayed)
>zend_hash.c(202) : Freeing 0x081A8E24 (20 bytes),
>script=/usr/local/www/data/Login/users_login.php
>zend_API.c(219) : Freeing 0x0819F5A4 (48 bytes),
>script=/usr/local/www/data/Login/users_login.php
>zend_API.c(208) : Actual location (location was relayed)
>zend_hash.c(202) : Freeing 0x081BAE24 (20 bytes),
>script=/usr/local/www/data/Login/users_login.php
>zend_API.c(219) : Freeing 0x081A96A4 (48 bytes),
>script=/usr/local/www/data/Login/users_login.php
>zend_API.c(208) : Actual location (location was relayed)
>zend_hash.c(202) : Freeing 0x081B8E24 (20 bytes),
>script=/usr/local/www/data/Login/users_login.php
>Last leak repeated 212 times
>zend_opcode.c(304) : Freeing 0x08205024 (2100 bytes),
>script=/usr/local/www/data/Login/users_login.php
>Last leak repeated 1 time
>./zend_language_scanner.l(1059) : Freeing 0x0820D824 (39 bytes),
>script=/usr/local/www/data/Login/users_login.php
>Last leak repeated 8 times
>zend_hash.c(461) : Freeing 0x081DCBA4 (76 bytes),
>script=/usr/local/www/data/Login/users_login.php
>Last leak repeated 13 times
>./zend_execute.c(1629) : Freeing 0x0824B564 (24 bytes),
>script=/usr/local/www/data/Login/users_login.php
>zend_variables.c(117) : Actual location (location was relayed)
>Last leak repeated 41 times
>Last leak repeated 6 times
>var.c(475) : Freeing 0x0833AA24 (2 bytes),
>script=/usr/local/www/data/Login/users_login.php
>Last leak repeated 15 times
>var.c(562) : Freeing 0x0833A9A4 (12 bytes),
>script=/usr/local/www/data/Login/users_login.php
>Last leak repeated 16 times
>session.c(501) : Freeing 0x082529A4 (48 bytes),
>script=/usr/local/www/data/Login/users_login.php
>zend_API.c(188) : Actual location (location was relayed)
>session.c(500) : Freeing 0x0833BFE4 (12 bytes),
>script=/usr/local/www/data/Login/users_login.php
>mod_files.c(134) : Freeing 0x0822DFA4 (33 bytes),
>script=/usr/local/www/data/Login/users_login.php
>mod_files.c(209) : Freeing 0x081BBC64 (5 bytes),
>script=/usr/local/www/data/Login/users_login.php
>mod_files.c(201) : Freeing 0x08335E24 (16 bytes),
>script=/usr/local/www/data/Login/users_login.php
>session.c(873) : Freeing 0x081F60A4 (33 bytes),
>script=/usr/local/www/data/Login/users_login.php
>zend_compile.c(1605) : Freeing 0x083186E4 (12 bytes),
>script=/usr/local/www/data/Login/users_login.php
>Last leak repeated 3 times
>main.c(1059) : Freeing 0x081B9C24 (48 bytes),
>script=/usr/local/www/data/home/menu_walled_garden.php
>
>
>
>This goes on for some time, so if you want to see it all, you can find
>the full version at http://www.deadmime.org/~dank/sitics-error.log
>
>But it also leaves an interesting spot in the middle:
>
>---------------------------------------
>zend_opcode.c(168) : Block 0x081ACAC0 status:
>zend_variables.c(62) : Actual location (location was relayed)
>Beginning: OK (allocated on ./zend_language_scanner.l:739, 89
>bytes)
> End: Overflown (magic=0x283F791C instead of 0x2A8FCC84)
> At least 4 bytes overflown
>---------------------------------------
>
><..... SOME TIME/BAD-FILE-REQUESTS PASSING .... >
>
>---------------------------------------
>zend_opcode.c(168) : Block 0x08AE4B80 status:
>zend_variables.c(62) : Actual location (location was relayed)
>Beginning: OK (allocated on ./zend_language_scanner.l:1152, 217
>bytes)
> End: Overflown (magic=0x283F791C instead of 0x2A8FCC84)
> At least 4 bytes overflown
>---------------------------------------
>[Tue Mar 20 23:50:21 2001] [notice] child pid 257 exit signal
>Segmentation fault (11), possible coredump in /usr/local
>[Tue Mar 20 23:58:11 2001] [error] [client 172.16.64.5] File does not
>exist: /usr/local/www/data/index.html
>httpd in free(): warning: chunk is already free.
>httpd in free(): warning: chunk is already free.
>httpd in free(): warning: page is already free.
>httpd in free(): warning: chunk is already free.
>
>
>Now the more interesting part... we were able to actually capture state
>in gdb when some of these happened, and have two core dumps for your
>parusal now....
>
>(gdb) bt
>#0 0x282f525c in shutdown_memory_manager (silent=0, clean_cache=0) at
>zend_alloc.c:477
>#1 0x28329fc0 in php_request_shutdown (dummy=0x0) at main.c:665
>#2 0x28326c57 in php_apache_request_shutdown (dummy=0x0) at
>mod_php4.c:290
>#3 0x805144a in run_cleanups ()
>#4 0x80503aa in ap_clear_pool ()
>#5 0x805040c in ap_destroy_pool ()
>#6 0x805037f in ap_clear_pool ()
>#7 0x805bc36 in child_main ()
>#8 0x805c239 in make_child ()
>#9 0x805c4a8 in perform_idle_server_maintenance ()
>#10 0x805c905 in standalone_main ()
>#11 0x805ce3b in main ()
>#12 0x804fbf1 in _start ()
>
>
>The above seems to be the common backtrace for them all, only change the
>zend_alloc.c line from 477 to 460 (it seems to be split... 2 on 477 and
>2 on 460)
>
>There is one other lone core dump that I'm not sure what to make of from
>this though...
>(gdb) bt
>#0 0x8050533 in ap_palloc ()
>#1 0x8050614 in ap_pstrdup ()
>#2 0x8050d06 in ap_table_set ()
>#3 0x38080537 in ?? ()
>Cannot access memory at address 0x2abfbffb.
>(gdb)
>
>
>I can more than likely post the users_login.php (which seems to cause
>these errors), but it's a bit lengthy... I'm working on trying to
>pinpoint an area which causes this series of events (no luck yet).
>
>
>System FreeBSD kalowsky-bsd.eng.tvol.net 4.2-STABLE FreeBSD
>4.2-STABLE #2: Fri
> Mar 2 09:03:58 EST 2001
>
>[EMAIL PROTECTED]:/usr/obj/usr/src/sys/DEVEL i386
>
>Configure Command
>./configure --with-imap --with-gettext --with-apxs=/usr/local/sbin/apxs
> --prefix=/usr/local --with-pgsql --enable-debug
>--enable-snmp
> --enable-track-vars --enable-trans-sid
>--disable-magic-quotes
> --enable-short-tags --without-mysql --without-tsrm-pthreads
> --enable-wddx
>
>
>Apache Version 1.3.17
>Loaded Modules
> mod_perl, mod_php4, mod_setenvif, mod_so, mod_unique_id,
>mod_usertrack,
> mod_headers, mod_expires, mod_cern_meta, mod_proxy, mod_digest,
> mod_auth_db, mod_auth_anon, mod_auth, mod_access, mod_rewrite,
>mod_alias,
> mod_speling, mod_actions, mod_imap, mod_cgi, mod_dir,
>mod_include, mod_info,
> mod_status, mod_negotiation, mod_mime, mod_mime_magic,
>mod_log_config,
> mod_env, mod_vhost_alias, http_core
>
>--
>Dan Kalowsky "Tonight I think I'll walk alone,
>Worldgate Communications I'll find my soul as I go home."
>Software Engineer - TICS Group - Temptation
>
>--
>PHP Development Mailing List <http://www.php.net/>
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--
Zeev Suraski <[EMAIL PROTECTED]>
CTO & co-founder, Zend Technologies Ltd. http://www.zend.com/
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