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Bug #58508 Core dump when cache almost full
Submitted: 2009-01-14 10:32 UTC Modified: 2009-04-05 23:32 UTC
From: carl dot springer at gtri dot gatech dot edu Assigned:
Status: No Feedback Package: APC (PECL)
PHP Version: 5.2.5 OS: Solaris 10, 64-bit
Private report: No CVE-ID: None
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From: carl dot springer at gtri dot gatech dot edu
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 [2009-01-14 10:32 UTC] carl dot springer at gtri dot gatech dot edu 
Description:
------------
Using PHP 5.2.6, Apache 2.0.63 on Solaris 10 (SPARC) with APC 3.1.2 not beta.

When APC cache has but a few kbytes left, Apache processes core dump.  Increasing cache size helps, but that's a nervous fix. 

Here's my php.ini settings relevant to APC:
extension="apc.so"
apc.enabled="1"
apc.shm_segments="1"
apc.shm_size="60"
apc.localcache="1"
apc.localcache.size="1024"
apc.ttl="3600"
apc.user_ttl="3600"
apc.include_once_override="1"

I built APC with these options:
'--enable-apc' \
'--enable-apc-mmap' \
'--with-apxs' \
'--enable-apc-sem' \
'--with-php-config=/usr/local/php-5.2.6/bin/php-config' \


[PHP Modules]
ctype
curl
date
dom
exif
filter
gettext
hash
iconv
json
ldap
libxml
mbstring
mcrypt
mysql
oci8
openssl
pcre
PDO
pdo_mysql
PDO_OCI
pdo_sqlite
posix
readline
Reflection
session
shmop
SimpleXML
SPL
standard
sysvmsg
sysvsem
sysvshm
tokenizer
xml
xmlreader
xmlwriter
zlib


Reproduce code:
---------------
No particular code, but when the opcode cache gets full for us it segfaults each Apache child.

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 [2009-02-28 16:38 UTC] shire@php.net 
Can you please try latest CVS, there's been some changes that probably fix this issues for you.  Thanks!
 
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