Bug #77922 [Opn]: Segmentation fault in PHP 7.3.4 when running phpunit

From: Date: Tue, 23 Apr 2019 09:19:47 +0000
Subject: Bug #77922 [Opn]: Segmentation fault in PHP 7.3.4 when running phpunit
References: 1  Groups: php.bugs 
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Edit report at https://bugs.php.net/bug.php?id=77922&edit=1

 ID:                 77922
 Updated by:         nikic@php.net
 Reported by:        enumag at gmail dot com
 Summary:            Segmentation fault in PHP 7.3.4 when running phpunit
 Status:             Open
 Type:               Bug
 Package:            Unknown/Other Function
 Operating System:   Ubuntu
 PHP Version:        7.3.4
 Block user comment: N
 Private report:     N

 New Comment:

Would it be possible for you to run the test suite under "USE_ZEND_ALLOC=0 valgrind php"
and post the resulting log?


Previous Comments:
------------------------------------------------------------------------
[2019-04-19 06:34:37] enumag at gmail dot com

Description:
------------
Since we upgraded to PHP 7.3 our phpunit tests crash with segfault. It's not one specific test
though, it only happens when running the whole suite.

I tried to generate the backtrace (https://bugs.php.net/bugs-generating-backtrace.php) and I'm
posting it below. Hopefully I did it correctly but it's the first time I did something like
that. Let me know if it's not enough.


Actual result:
--------------
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
PHPUnit 7.5.8 by Sebastian Bergmann and contributors.

.............................................................   61 / 1036 (  5%)
.............................................................  122 / 1036 ( 11%)
.............................................................  183 / 1036 ( 17%)
.............................................................  244 / 1036 ( 23%)
.............................................................  305 / 1036 ( 29%)
.....
Program received signal SIGSEGV, Segmentation fault.
zend_mm_alloc_small (bin_num=<optimized out>, size=56, heap=0x7ffff3000040) at
./Zend/zend_alloc.c:1289
1289	./Zend/zend_alloc.c: No such file or directory.
(gdb) bt
#0  zend_mm_alloc_small (bin_num=<optimized out>, size=56, heap=0x7ffff3000040) at
./Zend/zend_alloc.c:1289
#1  zend_mm_alloc_heap (size=56, heap=0x7ffff3000040) at ./Zend/zend_alloc.c:1360
#2  _emalloc (size=size@entry=56) at ./Zend/zend_alloc.c:2500
#3  0x00005555557e4445 in zend_string_alloc (persistent=0, len=28) at ./Zend/zend_string.h:133
#4  zend_string_tolower_ex (str=0x7fffe06bb000, persistent=persistent@entry=0) at
./Zend/zend_operators.c:2677
#5  0x00005555557df85f in zend_lookup_class_ex (name=name@entry=0x7fffe06bb000, key=key@entry=0x0,
use_autoload=use_autoload@entry=1) at ./Zend/zend_execute_API.c:851
#6  0x00005555557ed333 in zend_is_callable_check_class (name=<optimized out>,
scope=0x7ffff30c3428, fcc=fcc@entry=0x7fffffffa2e0, strict_class=strict_class@entry=0x7fffffffa2d8,
error=error@entry=0x0)
    at ./Zend/zend_API.c:2957
#7  0x00005555557f3982 in zend_is_callable_impl (error=0x0, fcc=0x7fffffffa2e0,
check_flags=<optimized out>, object=0x0, callable=0x7ffff3025c90) at ./Zend/zend_API.c:3406
#8  zend_is_callable_ex (callable=0x7ffff3025c90, object=0x0, check_flags=<optimized out>,
callable_name=0x0, fcc=<optimized out>, error=0x0) at ./Zend/zend_API.c:3460
#9  0x00005555558793b0 in zend_check_type (is_return_type=<optimized out>, scope=<optimized
out>, default_value=<optimized out>, cache_slot=<optimized out>, ce=<optimized
out>, arg=0x7ffff3000070, 
    type=<optimized out>) at ./Zend/zend_execute.c:929
#10 zend_verify_arg_type (cache_slot=<optimized out>, default_value=<optimized out>,
arg=<optimized out>, arg_num=<optimized out>, zf=<optimized out>) at
./Zend/zend_execute.c:958
#11 ZEND_RECV_INIT_SPEC_CONST_HANDLER () at ./Zend/zend_vm_execute.h:2251
#12 execute_ex (ex=0x2c04b90) at ./Zend/zend_vm_execute.h:55601
#13 0x000055555587bcb3 in zend_execute (op_array=op_array@entry=0x7ffff30822a0, return_value=0x0,
return_value@entry=0x7ffff30b1d20) at ./Zend/zend_vm_execute.h:60881
#14 0x00005555557ece22 in zend_execute_scripts (type=type@entry=8, retval=0x7ffff30b1d20,
retval@entry=0x0, file_count=-217949136, file_count@entry=3) at ./Zend/zend.c:1568
#15 0x000055555578ce70 in php_execute_script (primary_file=0x7fffffffc9a0) at ./main/main.c:2630
#16 0x000055555587e18c in do_cli (argc=6, argv=0x555555bfa570) at ./sapi/cli/php_cli.c:997
#17 0x000055555564490b in main (argc=6, argv=0x555555bfa570) at ./sapi/cli/php_cli.c:1389



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