[php-maint] Bug#848661: php5-fpm[4116]: segfault at 0 ip 00007f1b77ddc25a sp 00007ffc029e64d0 error 4 in pdo_mysql.so[7f1b77dd9000+7000]

Antonio Silva asilva at wirelessmundi.com
Mon Dec 19 10:30:28 UTC 2016 

Package: php5
Version: 5.6.29+dfsg-0+deb8u1


Hello,

I'm experience segfault when accessing to a mysql database using 
php_pdo_mysql, to reproduce i just hit refresh multiple times on the web 
page.


Below you can find the respective backtrace log obtained from the 
generated core:


Core was generated by `php-fpm: pool 
internal                                                     '.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  _pdo_mysql_error (dbh=0x28e2658, stmt=0x0, file=0x7f1b77ddef80 
"/build/php5-5.6.29+dfsg/ext/pdo_mysql/mysql_driver.c", line=586) at 
/build/php5-5.6.29+dfsg/ext/pdo_mysql/mysql_driver.c:67
67    /build/php5-5.6.29+dfsg/ext/pdo_mysql/mysql_driver.c: No such file 
or directory.
(gdb) bt
#0  _pdo_mysql_error (dbh=0x28e2658, stmt=0x0, file=0x7f1b77ddef80 
"/build/php5-5.6.29+dfsg/ext/pdo_mysql/mysql_driver.c", line=586) at 
/build/php5-5.6.29+dfsg/ext/pdo_mysql/mysql_driver.c:67
#1  0x00007f1b77ddd159 in pdo_mysql_handle_factory (dbh=0x28e2658, 
driver_options=0x0) at 
/build/php5-5.6.29+dfsg/ext/pdo_mysql/mysql_driver.c:772
#2  0x00007f1b77feb22a in zim_PDO_dbh_constructor (ht=42870360, 
return_value=0x0, return_value_ptr=0x7f1b77ddef80, this_ptr=0x2568078, 
return_value_used=0) at /build/php5-5.6.29+dfsg/ext/pdo/pdo_dbh.c:389
#3  0x00000000006e7aea in dtrace_execute_internal 
(execute_data_ptr=<optimized out>, fci=<optimized out>, 
return_value_used=<optimized out>) at 
/build/php5-5.6.29+dfsg/Zend/zend_dtrace.c:97
#4  0x00000000007a84d0 in zend_do_fcall_common_helper_SPEC 
(execute_data=0x7f1b83782218) at 
/build/php5-5.6.29+dfsg/Zend/zend_vm_execute.h:560
#5  0x0000000000736820 in execute_ex (execute_data=0x7f1b83782218) at 
/build/php5-5.6.29+dfsg/Zend/zend_vm_execute.h:363
#6  0x00000000006e7988 in dtrace_execute_ex 
(execute_data=0x7f1b83782218) at 
/build/php5-5.6.29+dfsg/Zend/zend_dtrace.c:73
#7  0x00000000007a8a13 in zend_do_fcall_common_helper_SPEC 
(execute_data=0x7f1b83782000) at 
/build/php5-5.6.29+dfsg/Zend/zend_vm_execute.h:592
#8  0x0000000000736820 in execute_ex (execute_data=0x7f1b83782000) at 
/build/php5-5.6.29+dfsg/Zend/zend_vm_execute.h:363
#9  0x00000000006e7988 in dtrace_execute_ex 
(execute_data=0x7f1b83782000) at 
/build/php5-5.6.29+dfsg/Zend/zend_dtrace.c:73
#10 0x00000000007a8a13 in zend_do_fcall_common_helper_SPEC 
(execute_data=0x7f1b83781e20) at 
/build/php5-5.6.29+dfsg/Zend/zend_vm_execute.h:592
#11 0x0000000000736820 in execute_ex (execute_data=0x7f1b83781e20) at 
/build/php5-5.6.29+dfsg/Zend/zend_vm_execute.h:363
#12 0x00000000006e7988 in dtrace_execute_ex 
(execute_data=0x7f1b83781e20) at 
/build/php5-5.6.29+dfsg/Zend/zend_dtrace.c:73
#13 0x00000000006e9826 in zend_call_function (fci=0x7ffc029e6f20, 
fci_cache=0x0, fci_cache at entry=0x7ffc029e6ef0) at 
/build/php5-5.6.29+dfsg/Zend/zend_execute_API.c:831
#14 0x000000000060f4f3 in zif_call_user_func_array (ht=<optimized out>, 
return_value=0x25661d8, return_value_ptr=<optimized out>, 
this_ptr=<optimized out>, return_value_used=<optimized out>)
     at /build/php5-5.6.29+dfsg/ext/standard/basic_functions.c:4790
#15 0x00000000006e7aea in dtrace_execute_internal 
(execute_data_ptr=<optimized out>, fci=<optimized out>, 
return_value_used=<optimized out>) at 
/build/php5-5.6.29+dfsg/Zend/zend_dtrace.c:97
#16 0x00000000007a84d0 in zend_do_fcall_common_helper_SPEC 
(execute_data=0x7f1b83781c40) at 
/build/php5-5.6.29+dfsg/Zend/zend_vm_execute.h:560
#17 0x0000000000736820 in execute_ex (execute_data=0x7f1b83781c40) at 
/build/php5-5.6.29+dfsg/Zend/zend_vm_execute.h:363
#18 0x00000000006e7988 in dtrace_execute_ex 
(execute_data=0x7f1b83781c40) at 
/build/php5-5.6.29+dfsg/Zend/zend_dtrace.c:73
#19 0x00000000006e9826 in zend_call_function (fci=0x7ffc029e72d0, 
fci_cache=0x0, fci_cache at entry=0x7ffc029e72a0) at 
/build/php5-5.6.29+dfsg/Zend/zend_execute_API.c:831
#20 0x000000000060f4f3 in zif_call_user_func_array (ht=<optimized out>, 
return_value=0x2565e20, return_value_ptr=<optimized out>, 
this_ptr=<optimized out>, return_value_used=<optimized out>)
     at /build/php5-5.6.29+dfsg/ext/standard/basic_functions.c:4790
#21 0x00000000006e7aea in dtrace_execute_internal 
(execute_data_ptr=<optimized out>, fci=<optimized out>, 
return_value_used=<optimized out>) at 
/build/php5-5.6.29+dfsg/Zend/zend_dtrace.c:97
#22 0x00000000007a84d0 in zend_do_fcall_common_helper_SPEC 
(execute_data=0x7f1b83781af8) at 
/build/php5-5.6.29+dfsg/Zend/zend_vm_execute.h:560
#23 0x0000000000736820 in execute_ex (execute_data=0x7f1b83781af8) at 
/build/php5-5.6.29+dfsg/Zend/zend_vm_execute.h:363
#24 0x00000000006e7988 in dtrace_execute_ex 
(execute_data=0x7f1b83781af8) at 
/build/php5-5.6.29+dfsg/Zend/zend_dtrace.c:73
#25 0x00000000007a8a13 in zend_do_fcall_common_helper_SPEC 
(execute_data=0x7f1b83781908) at 
/build/php5-5.6.29+dfsg/Zend/zend_vm_execute.h:592
#26 0x0000000000736820 in execute_ex (execute_data=0x7f1b83781908) at 
/build/php5-5.6.29+dfsg/Zend/zend_vm_execute.h:363
#27 0x00000000006e7988 in dtrace_execute_ex 
(execute_data=0x7f1b83781908) at 
/build/php5-5.6.29+dfsg/Zend/zend_dtrace.c:73
#28 0x00000000007a8a13 in zend_do_fcall_common_helper_SPEC 
(execute_data=0x7f1b83781788) at 
/build/php5-5.6.29+dfsg/Zend/zend_vm_execute.h:592
#29 0x0000000000736820 in execute_ex (execute_data=0x7f1b83781788) at 
/build/php5-5.6.29+dfsg/Zend/zend_vm_execute.h:363
#30 0x00000000006e7988 in dtrace_execute_ex 
(execute_data=0x7f1b83781788) at 
/build/php5-5.6.29+dfsg/Zend/zend_dtrace.c:73
#31 0x00000000007a8a13 in zend_do_fcall_common_helper_SPEC 
(execute_data=0x7f1b83781610) at 
/build/php5-5.6.29+dfsg/Zend/zend_vm_execute.h:592
#32 0x0000000000736820 in execute_ex (execute_data=0x7f1b83781610) at 
/build/php5-5.6.29+dfsg/Zend/zend_vm_execute.h:363
#33 0x00000000006e7988 in dtrace_execute_ex 
(execute_data=0x7f1b83781610) at 
/build/php5-5.6.29+dfsg/Zend/zend_dtrace.c:73
#34 0x00000000007a69c8 in ZEND_INCLUDE_OR_EVAL_SPEC_CV_HANDLER 
(execute_data=0x7f1b83781468) at 
/build/php5-5.6.29+dfsg/Zend/zend_vm_execute.h:31631
#35 0x0000000000736820 in execute_ex (execute_data=0x7f1b83781468) at 
/build/php5-5.6.29+dfsg/Zend/zend_vm_execute.h:363
#36 0x00000000006e7988 in dtrace_execute_ex 
(execute_data=0x7f1b83781468) at 
/build/php5-5.6.29+dfsg/Zend/zend_dtrace.c:73
#37 0x00000000006fa570 in zend_execute_scripts (type=42870360, 
type at entry=8, retval=retval at entry=0x0, file_count=2011033472, 
file_count at entry=3) at /build/php5-5.6.29+dfsg/Zend/zend.c:1341
#38 0x0000000000695790 in php_execute_script 
(primary_file=0x7ffc029ea050) at /build/php5-5.6.29+dfsg/main/main.c:2613
#39 0x0000000000464e1f in main (argc=-2089286752, argv=0x7f1b83780c58) 
at /build/php5-5.6.29+dfsg/sapi/fpm/fpm/fpm_main.c:2072



-- 

Saludos / Regards / Cumprimentos,
António silva

More information about the pkg-php-maint mailing list