Edit report at https://bugs.php.net/bug.php?id=62525&edit=1
ID: 62525
Comment by: a...@php.net
Reported by: perryjp at gmail dot com
Summary: sigabrt while converting floating point to string
Status: Open
Type: Bug
Package: Reproducible crash
Operating System: Ubuntu 10.04.3 LTS
PHP Version: master-Git-2012-07-10 (Git)
Block user comment: N
Private report: N
New Comment:
But your trace says snprintf.c:399. Could you give a piece of code causing this?
Previous Comments:
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[2012-07-10 17:06:00] perryjp at gmail dot com
Description:
------------
I traced the root of my problem to compilation issues but I while debugging my
issues I traced a sigabrt to a bug in snprintf.c freeing a static string.
php_conv_fp(snprintf.c:396) tries to free the static strings "NAN" or "INF"
returned from __cvt(snprintf.c:97)
Actual result:
--------------
#0 0x0f8fc0d0 in raise () from /lib/tls/libc.so.6
#1 0x0f8fd924 in abort () from /lib/tls/libc.so.6
#2 0x0f93f658 in __libc_message () from /lib/tls/libc.so.6
#3 0x0f945f70 in malloc_printerr () from /lib/tls/libc.so.6
#4 0x0f947330 in _int_free () from /lib/tls/libc.so.6
#5 0x0f9478c0 in free () from /lib/tls/libc.so.6
#6 0x102bb960 in php_conv_fp (format=70 'F', num=2.0824708938098908,
add_dp=NO, precision=8, dec_point=46 '.', is_negative=0xbfb8d040,
buf=0xbfb8ce3d "NAN", len=0xbfb8ce38)
at /php/main/snprintf.c:399
#7 0x102bffdc in xbuf_format_converter (xbuf=0xbfb8d138, fmt=0x104463b7 "F",
ap=0xbfb8d16c)
at /php/main/spprintf.c:588
#8 0x102c0d14 in vspprintf (pbuf=0xbfb8d29c, max_len=0,
format=0x104463a8 "%.15s%ld%ld%0.8F", ap=0xbfb8d16c)
at /php/main/spprintf.c:769
#9 0x102c0df0 in spprintf (pbuf=0xbfb8d29c, max_len=0,
format=0x104463a8 "%.15s%ld%ld%0.8F")
at /php/main/spprintf.c:788
#10 0x1017a59c in php_session_create_id (mod_data=0x104b3f08, newlen=0x0)
at /php/ext/session/session.c:736
#11 0x1017aa2c in php_session_initialize ()
at /php/ext/session/session.c:830
#12 0x1017d530 in php_session_start ()
at /php/ext/session/session.c:1325
#13 0x1017fe48 in zif_session_start (ht=0, return_value=0x105695c0,
return_value_ptr=0x0, this_ptr=0x0, return_value_used=0)
at /php/ext/session/session.c:1815
#14 0x103539d4 in zend_do_fcall_common_helper_SPEC (execute_data=0xbfb8dff8)
at /php/Zend/zend_vm_execute.h:200
#15 0x1035b428 in ZEND_DO_FCALL_SPEC_CONST_HANDLER (execute_data=0xbfb8dff8)
at /php/Zend/zend_vm_execute.h:1679
#16 0x1035334c in execute (op_array=0x10596f88)
at /php/Zend/zend_vm_execute.h:92
#17 0x10353ba4 in zend_do_fcall_common_helper_SPEC (execute_data=0xbfb8e148)
at /php/Zend/zend_vm_execute.h:234
#18 0x1035b428 in ZEND_DO_FCALL_SPEC_CONST_HANDLER (execute_data=0xbfb8e148)
at /php/Zend/zend_vm_execute.h:1679
#19 0x1035334c in execute (op_array=0x10560418)
at /php/Zend/zend_vm_execute.h:92
#20 0x10365278 in ZEND_INCLUDE_OR_EVAL_SPEC_TMP_HANDLER (
execute_data=0xbfb8f2e8)
at /php/Zend/zend_vm_execute.h:4612
#21 0x1035334c in execute (op_array=0x1055d000)
at /php/Zend/zend_vm_execute.h:92
#22 0x10322798 in zend_execute_scripts (type=8, retval=0x0, file_count=3)
at /php/Zend/zend.c:1134
#23 0x102ba7c0 in php_execute_script (primary_file=0xbfb9175c)
at /php/main/main.c:2005
#24 0x103cb7dc in main (argc=3, argv=0xbfb93d24)
at /php/sapi/cgi/cgi_main.c:1919
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Edit this bug report at https://bugs.php.net/bug.php?id=62525&edit=1
