Re: [PHP-DEV] PHP 4.0 Bug #7686: Segmentation fault in complex pages when using sessions From: alex <email protected>
Date: 11/07/00

Hello,

The backtrace will not help a lot with this problem. Please, try to reduce
the length of the scripts that cause the error and send them here.

Regards:

-- Alexander

On 7 Nov 2000 paul <email protected> wrote:

> From: paul <email protected>
> Operating system: Red Hat Linux release 6.2
> PHP version: 4.0.3pl1
> PHP Bug Type: *Session related
> Bug description: Segmentation fault in complex pages when using sessions
>
> Complex script that uses 2 include files and does many MySQL selects. Once I added in some session support and started storing some user preferences in an array I put into the session I started getting segmentation faults.
>
> Compile info:
>
> #PHP
> ./configure --with-mysql=/usr/local/mysql \
> --with-apache=../apache_1.3.14 \
> --enable-track-vars --enable-debug
>
> #Apache
> ./configure \
> --activate-module=src/modules/php4/libphp4.a \
> --enable-module=php4 \
> --prefix=/usr/local/apache
>
>
> Backtrace:
>
> (gdb) run -X
> Starting program: /usr/local/apache/bin/httpd -X
> (no debugging symbols found)...
> Program received signal SIGSEGV, Segmentation fault.
> 0x401370b9 in chunk_free (ar_ptr=0x401cbd60, p=0x882322e0) at malloc.c:3094
> 3094 malloc.c: No such file or directory.
> (gdb) bt
> #0 0x401370b9 in chunk_free (ar_ptr=0x401cbd60, p=0x882322e0) at malloc.c:3094
> #1 0x40136fba in __libc_free (mem=0x82322e8) at malloc.c:3023
> #2 0x80cdaec in _efree ()
> #3 0x80d80e4 in _zval_dtor ()
> #4 0x80d3c4f in destroy_op_array ()
> #5 0x80d3b69 in destroy_zend_function ()
> #6 0x80dba77 in zend_hash_clean ()
> #7 0x80dbbbf in zend_hash_apply ()
> #8 0x80d2618 in shutdown_executor ()
> #9 0x80d8a87 in zend_deactivate ()
> #10 0x807b59d in php_request_shutdown ()
> #11 0x80797ea in sapi_apache_send_headers ()
> #12 0x81029ae in ap_run_cleanup ()
> #13 0x81011dd in ap_clear_pool ()
> #14 0x8101251 in ap_destroy_pool ()
> #15 0x81011cc in ap_clear_pool ()
> #16 0x811099f in ap_child_terminate ()
> #17 0x8110f3c in ap_child_terminate ()
> #18 0x8111099 in ap_child_terminate ()
> #19 0x81116c6 in ap_child_terminate ()
> #20 0x8111e53 in main ()
> #21 0x400f59cb in __libc_start_main (main=0x8111b0c <main>, argc=2, argv=0xbffffb14, init=0x80606dc <_init>,
> fini=0x813f79c <_fini>, rtld_fini=0x4000ae60 <_dl_fini>, stack_end=0xbffffb0c) at ../sysdeps/generic/libc-start.c:92
>
>
> I can provide script but it is very lengthy. Hopefully the backtrace can give some information. Thanks much.
>
>
> 

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