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double free or corruption

Discussion in 'General Discussion' started by whplus, Jul 2, 2008.

  1. whplus

    whplus Well-Known Member

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    I am getting the following error on /usr/local/cpanel/logs/error_log.
    Code:
    *** glibc detected *** /var/cpanel/3rdparty/bin/php: double free or corruption (!prev): 0x0a24bb60 ***
    ======= Backtrace: =========
    /lib/libc.so.6[0x740b16]
    /lib/libc.so.6(cfree+0x90)[0x744030]
    /var/cpanel/3rdparty/bin/php[0x82b503a]
    /var/cpanel/3rdparty/bin/php(zend_hash_reverse_apply+0x57)[0x82b50d7]
    /var/cpanel/3rdparty/bin/php(shutdown_executor+0x2df)[0x829fb2f]
    /var/cpanel/3rdparty/bin/php(zend_deactivate+0x53)[0x82ab793]
    /var/cpanel/3rdparty/bin/php(php_request_shutdown+0x132)[0x826b9b2]
    /var/cpanel/3rdparty/bin/php(main+0xa04)[0x8325c84]
    /lib/libc.so.6(__libc_start_main+0xdc)[0x6eddec]
    /var/cpanel/3rdparty/bin/php(realloc+0xa9)[0x8097d41]
    
    I think this error due to corrupted cpanel's php, so I recompiled cpanel's php but still get the same.

    I am using cPanel 11.23.3-S25971, RHEL 5.2 on Quad Core Xeon 5430 w/ 4GB RAM.

    If you have any suggestions please let me know. Thank you.

    Susan,
     
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  2. JordiCS

    JordiCS Well-Known Member

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    Hello,

    I am getting similar error_log errors on three different VPS, always generated after accessing PHPMyAdmin from CPanel interface on any user account. It doesn't seem to be affecting MySQL or PHPMyAdmin functionality.

    This is a message on a VPS CENTOS Enterprise 4.6 i686 on virtuozzo:

    Code:
    *** glibc detected *** double free or corruption (!prev): 0x0871b450 ***
    And this one, on a second VPS with same OS:

    Code:
    *** glibc detected *** corrupted double-linked list: 0x0873b120 ***
    On a VPS CENTOS Enterprise 5.2 i686 on xen these messages are much larger:

    Code:
    *** glibc detected *** /var/cpanel/3rdparty/bin/php: double free or corruption (out): 0x09a846a0 ***
    
    ======= Backtrace: =========
    /lib/i686/nosegneg/libc.so.6[0xb768d726]
    /lib/i686/nosegneg/libc.so.6(cfree+0x90)[0xb7690cc0]
    /var/cpanel/3rdparty/bin/php[0x828b9ba]
    /var/cpanel/3rdparty/bin/php(zend_hash_reverse_apply+0x57)[0x828ba57]
    /var/cpanel/3rdparty/bin/php(shutdown_executor+0x2df)[0x82765cf]
    /var/cpanel/3rdparty/bin/php(zend_deactivate+0x53)[0x8282283]
    /var/cpanel/3rdparty/bin/php(php_request_shutdown+0xfc)[0x8242efc]
    /var/cpanel/3rdparty/bin/php(main+0x997)[0x82fa067]
    /lib/i686/nosegneg/libc.so.6(__libc_start_main+0xdc)[0xb7639dec]
    /var/cpanel/3rdparty/bin/php(realloc+0xa1)[0x8091a71]
    ======= Memory map: ========
    08048000-085ed000 r-xp 00000000 08:01 459895     /var/cpanel/3rdparty/bin/php
    085ed000-08613000 rwxp 005a5000 08:01 459895     /var/cpanel/3rdparty/bin/php
    
    ... and fifty more lines of "Memory map".

    My CPanel version is 11.23.4-R26138 on the three servers, but it began to happen several updates ago.

    Regards,
     
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    #2 JordiCS, Jul 12, 2008
    Last edited: Jul 12, 2008
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