Edit report at https://bugs.php.net/bug.php?id=51278&edit=1
ID: 51278
Comment by: cjashfor at linux dot vnet dot ibm dot com
Reported by: christopher dot jones at oraclel dot com
Summary: Crash when using reopened persistent connection
after one resource closed
Status: Open
Type: Bug
Package: DBM/DBA related
Operating System: Linux
PHP Version: 5.3SVN-2010-03-12 (SVN)
Block user comment: N
Private report: N
New Comment:
Shouldn't someone at least be assigned to fix this bug? I reported what
appears to be an identical bug - 61390 - and it was closed after just a small
amount of discussion from the developers, followed by inactivity.
Previous Comments:
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[2010-03-12 01:17:26] christopher dot jones at oraclel dot com
Description:
------------
Do two dba_popen() calls using the same file. Close one resource with
dba_close(). Then do a dba_fetch on the still open resource. This results in a
crash in flatfile_findkey() with a NULL dba pointer.
Program received signal SIGSEGV, Segmentation fault.
0x0817c3b4 in flatfile_findkey (dba=0x0, key_datum=...) at
/home/cjones/phpsrc/php/php-
src/branches/PHP_5_3/ext/dba/libflatfile/flatfile.c:173
(gdb) bt
#0 0x0817c3b4 in flatfile_findkey (dba=0x0, key_datum=...) at
/home/cjones/phpsrc/php/php-
src/branches/PHP_5_3/ext/dba/libflatfile/flatfile.c:173
#1 0x0817bfaa in flatfile_fetch (dba=0x0, key_datum=...) at
/home/cjones/phpsrc/php/php-
src/branches/PHP_5_3/ext/dba/libflatfile/flatfile.c:91
#2 0x0817a671 in dba_fetch_flatfile (info=0x89abb20, key=0x897b2bc "key1",
keylen=4, skip=0, newlen=0xbfffd348) at /home/cjones/phpsrc/php/php-
src/branches/PHP_5_3/ext/dba/dba_flatfile.c:70
#3 0x0817871b in zif_dba_fetch (ht=2, return_value=0x897a638,
return_value_ptr=0x0, this_ptr=0x0, return_value_used=1) at
/home/cjones/phpsrc/php/php-src/branches/PHP_5_3/ext/dba/dba.c:1025
#4 0x0844ccf0 in zend_do_fcall_common_helper_SPEC (execute_data=0x89abcc8) at
/home/cjones/phpsrc/php/php-src/branches/PHP_5_3/Zend/zend_vm_execute.h:313
#5 0x084507ae in ZEND_DO_FCALL_SPEC_CONST_HANDLER (execute_data=0x89abcc8) at
/home/cjones/phpsrc/php/php-src/branches/PHP_5_3/Zend/zend_vm_execute.h:1603
#6 0x0844c38d in execute (op_array=0x897ac98) at /home/cjones/phpsrc/php/php-
src/branches/PHP_5_3/Zend/zend_vm_execute.h:104
#7 0x0841ff12 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at
/home/cjones/phpsrc/php/php-src/branches/PHP_5_3/Zend/zend.c:1194
#8 0x083b6c16 in php_execute_script (primary_file=0xbffff7c4) at
/home/cjones/phpsrc/php/php-src/branches/PHP_5_3/main/main.c:2260
#9 0x084dd733 in main (argc=2, argv=0xbffff954) at /home/cjones/phpsrc/php/php-
src/branches/PHP_5_3/sapi/cli/php_cli.c:1192
Test script:
---------------
See ext/dba/tests/dba015.phpt
------------------------------------------------------------------------
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Edit this bug report at https://bugs.php.net/bug.php?id=51278&edit=1
