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Date: Mon, 16 Feb 2004 00:23:56 -0500
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Subject: segfault in shutdown sequence
From: hans@velum.net (Hans Lellelid)

I'm getting a segfault at the end of (successful) script execution. 
Appears to be an issue in the shutdown sequence; I'm unsure how to 
report this bug, since providing duplicating code is not possible.

The segfault is happening at the end of a Phing (http://phing.info) 
build process, which involves many (over a hundred, I'm sure) classes, 
uses reflection api heavily, XML (expat), etc.

Here's a bugtrace from the core file.  I don't know if this is any help 
at all.  I was hoping to find some 'execute' lines so I could track down 
the issue in my code.  This seems to be just part of the shutdown 
sequence, though. If anyone has some suggestions for things I could look 
for, please let me know.

Thanks,
Hans

#0  0x0818e625 in zend_mm_remove_from_free_list (heap=0x81f7a80, 
mm_block=0xbed43144)
     at /home/work/php-5.0.0b4/Zend/zend_mm.c:163
#1  0x0818e158 in zend_mm_free (heap=0x81f7a80, p=0xbed434b0)
     at /home/work/php-5.0.0b4/Zend/zend_mm.c:356
#2  0x0816bf79 in _efree (ptr=0x3) at 
/home/work/php-5.0.0b4/Zend/zend_alloc.c:283
#3  0x0818bc50 in zend_objects_free_object_storage (object=0xbed44fec)
     at /home/work/php-5.0.0b4/Zend/zend_objects.c:78
#4  0x0818e94e in reflection_free_objects_storage (object=0xbed44fec)
     at /home/work/php-5.0.0b4/Zend/zend_reflection_api.c:191
#5  0x0818da3c in zend_objects_store_del_ref (zobject=0x3)
     at /home/work/php-5.0.0b4/Zend/zend_objects_API.c:140
#6  0x0817c1d1 in _zval_dtor (zvalue=0xbed443e4)
     at /home/work/php-5.0.0b4/Zend/zend_variables.c:61
#7  0x08174f79 in _zval_ptr_dtor (zval_ptr=0xbed48798)
     at /home/work/php-5.0.0b4/Zend/zend_execute_API.c:359
#8  0x08182da0 in zend_hash_destroy (ht=0xbedae214)
     at /home/work/php-5.0.0b4/Zend/zend_hash.c:513
#9  0x0817c1fd in _zval_dtor (zvalue=0xbedafc14)
     at /home/work/php-5.0.0b4/Zend/zend_variables.c:52
#10 0x08174f79 in _zval_ptr_dtor (zval_ptr=0xbed46430)
     at /home/work/php-5.0.0b4/Zend/zend_execute_API.c:359
#11 0x08182da0 in zend_hash_destroy (ht=0xbed44324)
     at /home/work/php-5.0.0b4/Zend/zend_hash.c:513
#12 0x0818bc47 in zend_objects_free_object_storage (object=0xbedac1cc)
     at /home/work/php-5.0.0b4/Zend/zend_objects.c:77
#13 0x0818d878 in zend_objects_store_free_object_storage (objects=0x81f7f70)
     at /home/work/php-5.0.0b4/Zend/zend_objects_API.c:71
#14 0x08174d90 in shutdown_executor ()
     at /home/work/php-5.0.0b4/Zend/zend_execute_API.c:273
#15 0x0817d4ec in zend_deactivate () at 
/home/work/php-5.0.0b4/Zend/zend.c:813
#16 0x0814cd9b in php_request_shutdown (dummy=0x0)
     at /home/work/php-5.0.0b4/main/main.c:1243
#17 0x081a13bf in main (argc=9, argv=0xbff651c4)
     at /home/work/php-5.0.0b4/sapi/cli/php_cli.c:1044