Apache crash in `gc_zobj_possible_root`

Solution Verified - Updated -

Issue

  • Multiple apache servers are crashing in the following backtrace:
#0  0x00007fa4195f786a in gc_zobj_possible_root () from ./etc/httpd/modules/libphp5.so
#1  0x00007fa4195e4cbb in zend_hash_destroy () from ./etc/httpd/modules/libphp5.so
#2  0x00007fa4195d6d3b in _zval_dtor_func () from ./etc/httpd/modules/libphp5.so
#3  0x00007fa4195ca03a in _zval_ptr_dtor () from ./etc/httpd/modules/libphp5.so
#4  0x00007fa4195e4cbb in zend_hash_destroy () from ./etc/httpd/modules/libphp5.so
#5  0x00007fa4195d6d3b in _zval_dtor_func () from ./etc/httpd/modules/libphp5.so
#6  0x00007fa4195ca03a in _zval_ptr_dtor () from ./etc/httpd/modules/libphp5.so
#7  0x00007fa4195e4cbb in zend_hash_destroy () from ./etc/httpd/modules/libphp5.so
#8  0x00007fa4195d6d3b in _zval_dtor_func () from ./etc/httpd/modules/libphp5.so
#9  0x00007fa4195ca03a in _zval_ptr_dtor () from ./etc/httpd/modules/libphp5.so
#10 0x00007fa4195e4cbb in zend_hash_destroy () from ./etc/httpd/modules/libphp5.so
#11 0x00007fa4195ce6d5 in destroy_op_array () from ./etc/httpd/modules/libphp5.so
#12 0x00007fa4195e4fd3 in zend_hash_clean () from ./etc/httpd/modules/libphp5.so
#13 0x00007fa416e0702b in apc_interned_strings_shutdown () from ./usr/lib64/php/modules/apc.so
#14 0x00007fa416dff1ce in apc_module_shutdown () from ./usr/lib64/php/modules/apc.so
#15 0x00007fa416df4cbf in ?? () from ./usr/lib64/php/modules/apc.so
#16 0x00007fa4195ddf95 in ?? () from ./etc/httpd/modules/libphp5.so
[...]

Environment

  • Red Hat Enterprise Linux 6
  • httpd-2.2.15-29.el6_4
  • php54w-5.4.19-1.w6

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