Php eAccelerator导致apache分段错误

我不知道为什么apache子进程经常出现信号分段错误（11）

php版本5.2.5，eAccelerator 0.9.5.3 在eAccelerator中启用缓存时　扩展和执行压力测试时，apache始终退出whit错误日志：

[注意]子pid 29237出口信号分段故障（11） 有时会出现另一个错误日志：

PHP致命错误：第0行上未知的允许内存大小134217728字节已用尽（尝试分配47645029712760字节）

使用gdb跟踪分段错误，我得到了上下文：

(gdb) bt
#0  _zend_mm_free_int (heap=0x53c95b0, p=0x2b5538df1f58) at /usr/src/redhat/BUILD/php-5.2.5/Zend/zend_alloc.c:1944
#1  0x00002b553214e718 in zend_hash_destroy (ht=0x5395ec0) at /usr/src/redhat/BUILD/php-5.2.5/Zend/zend_hash.c:526
#2  0x00002b553214368f in _zval_dtor_func (zvalue=0x5395e98) at /usr/src/redhat/BUILD/php-5.2.5/Zend/zend_variables.c:43
#3  0x00002b5532137116 in _zval_ptr_dtor (zval_ptr=0x5395ff0) at /usr/src/redhat/BUILD/php-5.2.5/Zend/zend_variables.h:35
#4  0x00002b553214e988 in zend_hash_clean (ht=0x5395df0) at /usr/src/redhat/BUILD/php-5.2.5/Zend/zend_hash.c:552
#5  0x00002b553216435c in zend_do_fcall_common_helper_SPEC (execute_data=0x7fff7210ac30) at /usr/src/redhat/BUILD/php-5.2.5/Zend/zend_vm_execute.h:255
#6  0x00002b553216382c in execute (op_array=0x5395b18) at /usr/src/redhat/BUILD/php-5.2.5/Zend/zend_vm_execute.h:92
#7  0x00002b55321439ad in zend_execute_scripts (type=8, retval=<value optimized out>, file_count=3) at /usr/src/redhat/BUILD/php-5.2.5/Zend/zend.c:1134
#8  0x00002b553210103b in php_execute_script (primary_file=0x7fff7210d100) at /usr/src/redhat/BUILD/php-5.2.5/main/main.c:2005
#9  0x00002b55321c3ba5 in php_handler (r=0x53d7d08) at /usr/src/redhat/BUILD/php-5.2.5/sapi/apache2handler/sapi_apache2.c:631
#10 0x0000000000443c9c in ap_run_handler ()
#11 0x0000000000444541 in ap_invoke_handler ()
#12 0x000000000048336c in ap_process_request ()
#13 0x000000000047ff71 in ap_process_http_connection ()
#14 0x000000000044d2ce in ap_run_process_connection ()
#15 0x000000000044d641 in ap_process_connection ()
#16 0x00000000004a26e7 in child_main ()
#17 0x00000000004a288d in make_child ()
#18 0x00000000004a2aff in perform_idle_server_maintenance ()
#19 0x00000000004a2fe2 in ap_mpm_run ()
#20 0x000000000042a93f in main ()

在执行测试函数后，zend将释放“$option”哈希表，此时，分段发生

(gdb) p *ht->pListHead 
$8 = {h = 14664090660519840576, nKeyLength = 19, pData = 0x5395f80, pDataPtr = 0x2b5538df1f58, pListNext = 0x0, pListLast = 0x0, pNext = 0x0, pLast = 0x0, arKey = "d"} 

点pDataPtr是无效地址 我通过pmap检查地址，0x2b5538df1f58映射到/dev/zero

00002b5538def000 131072K rw-s-/dev/zero（已删除）

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非常感谢。

您可以使用lighttpd尝试相同的测试吗？lighttpd是否支持每个加速器？只有在每个加速器中启用缓存时，才会出现segmentaton问题

(gdb) p *ht->pListHead 
$8 = {h = 14664090660519840576, nKeyLength = 19, pData = 0x5395f80, pDataPtr = 0x2b5538df1f58, pListNext = 0x0, pListLast = 0x0, pNext = 0x0, pLast = 0x0, arKey = "d"}