apache2 crashed with SIGSEGV in prefill_from_oparray()

[Bryan Agee]

apache error on boot

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: apache2.2-bin 2.2.22-1ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-17.26-generic 3.2.6
Uname: Linux 3.2.0-17-generic x86_64
ApportVersion: 1.92-0ubuntu1
Architecture: amd64
Date: Mon Feb 20 17:43:43 2012
ExecutablePath: /usr/lib/apache2/mpm-prefork/apache2
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111011)
ProcCmdline: /usr/sbin/apache2 -k start
ProcEnviron:
 PATH=(custom, no user)
 LANG=C
Signal: 11
SourcePackage: apache2
StacktraceTop:
 prefill_from_oparray (fn=0x7f80fb399270 "Vi*\223ފ\300\247\026", opa=0x0) at /tmp/pear/temp/xdebug/xdebug_code_coverage.c:488
 ?? ()
 ?? ()
 ?? ()
Title: apache2 crashed with SIGSEGV in prefill_from_oparray()
UpgradeStatus: Upgraded to precise on 2011-12-19 (64 days ago)
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 ?? ()
 ?? () from /tmp/tmpcezMdu/usr/lib/apache2/modules/libphp5.so
 ?? () from /tmp/tmpcezMdu/usr/lib/apache2/modules/libphp5.so
 zend_hash_graceful_reverse_destroy () from /tmp/tmpcezMdu/usr/lib/apache2/modules/libphp5.so
 ?? () from /tmp/tmpcezMdu/usr/lib/apache2/modules/libphp5.so

[James Page (james-page)]

I was able to pull a bit more stacktrace with some coaxing of the packages:

#0 0x00007f80f30b1511 in ?? ()
No symbol table info available.
#1 0x00007f80f5d17265 in zend_get_module_started (module_name=0x7f80fb399440 "\250") at /build/buildd/php5-5.3.10/Zend/zend_API.c:2082
        module = 0x7f80f9966030
#2 0x00007f80f5d1c74e in zend_hash_apply_deleter () at /build/buildd/php5-5.3.10/Zend/zend_hash.c:781
No locals.
#3 0x00007f80f5d1dfd8 in zend_hash_graceful_destroy (ht=0x7f80f6447780) at /build/buildd/php5-5.3.10/Zend/zend_hash.c:826
        p = 0x0
#4 0x00007f80f9995118 in ?? ()
No symbol table info available.
#5 0x00007fff811a5e10 in ?? ()
No symbol table info available.
#6 0x00007f80f5cbdd1a in php_module_startup (sf=0x7f80f9995118, additional_modules=0x7f80f9995118, num_additional_modules=4190179408) at /build/buildd/php5-5.3.10/main/main.c:2055
        zuf = {error_function = 0x7f80f5cbddc9 <php_module_shutdown+153>, printf_function = 0x7f80f9c11050 <ap_conftree>, write_function = 0x7f80f5da0331 <php_apache_ini_dtor+241>, fopen_function = 0, message_handler = 0x7f80f9100b70 <apr_pool_cleanup_register+140>, block_interruptions = 0x7f80f998b028, unblock_interruptions = 0x7f80f9993048, get_configuration_directive = 0x7f80fb16d010, ticks_function = 0x7f80f985e218, on_timeout = 0x7fff811a5e40, stream_open_function = 0x7f80f90ff870 <apr_palloc+199>, vspprintf_function = 0x7f80f998d7f8, getenv_function = 0x7f80f9993028, resolve_path_function = 0x7f80f9c11050 <ap_conftree>}
        zuv = {import_use_extension = 0x7f80f9c11070 "5\217\237\371\200\177", import_use_extension_length = 4190167264, html_errors = 128 '\200'}
        module = 0x7f80f99cc374
#7 0x00007f80f8ecc180 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#8 0x00007fff811a6028 in ?? ()
No symbol table info available.
#9 0x0000000300000000 in ?? ()
No symbol table info available.
#10 0x00007f80f997c4d8 in ?? ()
No symbol table info available.
#11 0x00007f80f9959028 in ?? ()
No symbol table info available.
#12 0x00007f80f998b028 in ?? ()
No symbol table info available.
#13 0x00007f80f9991028 in ?? ()
No symbol table info available.
#14 0x00007f80f9991118 in ?? ()
No symbol table info available.
#15 0x0000000000000076 in ?? ()
No symbol table info available.
#16 0x00007f8000000000 in ?? ()
No symbol table info available.
#17 0x00000000000000c2 in ?? ()
No symbol table info available.
#18 0x00007fff811a5f4e in ?? ()
No symbol table info available.
#19 0x00007f80f99f8560 in ?? ()
No symbol table info available.
#20 0x0000000000000000 in ?? ()
No symbol table info available.

[James Page (james-page)]

And:

#0 0x00007f80f30b1511 in zm_shutdown_xdebug (type=0, module_number=97) at /build/buildd/xdebug-2.1.0/build-php5/xdebug.c:598
No locals.
#1 0x0000000000000007 in ?? ()
No symbol table info available.
#2 0x00007f80fb399440 in ?? ()
No symbol table info available.
#3 0x0000000000000000 in ?? ()
No symbol table info available.

[James Page (james-page)]

Hi Bryan

Please could you try reproducing with the use of php5-xdebug if possible? Might be the cause of this issue - just trying to rule things in or out.

[James Page (james-page)]

Sorry - that should have read 'without the use of php5-xdebug'.

[Launchpad Janitor (janitor)]

[Expired for php5 (Ubuntu) because there has been no activity for 60 days.]