Description
Using redis cluster (with php5.6.17 and latest develop branch) segfaults on apache :
[Wed Jan 27 18:39:16.037657 2016] [core:notice] [pid 94463] AH00051: child pid 98052 exit signal Segmentation fault (11), possible coredump in /tmp
❯ gdb /usr/local/sbin/httpd /extra/httpd.core [6:39:39 PM]
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This GDB was configured as "amd64-marcel-freebsd"...
Core was generated by `httpd'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /usr/local/lib/libpcre.so.1...done.
Loaded symbols for /usr/local/lib/libpcre.so.1
Reading symbols from /usr/local/lib/libaprutil-1.so.0...done.
[...]
#0 0x0000000805a0fe42 in zend_mm_check_ptr (heap=0x802848c00, ptr=0x80e81b048, silent=0,
__zend_filename=0x80eca3d6c "/usr/ports/databases/php56-redis/work/phpredis-2.2.7/redis_commands.c", __zend_lineno=1286,
__zend_orig_filename=0x0, __zend_orig_lineno=0) at zend_alloc.c:1392
1392 if (p->info._prev != ZEND_MM_GUARD_BLOCK &&
[New Thread 802806400 (LWP 100226/httpd)]
(gdb) bt full
#0 0x0000000805a0fe42 in zend_mm_check_ptr (heap=0x802848c00, ptr=0x80e81b048, silent=0,
__zend_filename=0x80eca3d6c "/usr/ports/databases/php56-redis/work/phpredis-2.2.7/redis_commands.c", __zend_lineno=1286,
__zend_orig_filename=0x0, __zend_orig_lineno=0) at zend_alloc.c:1392
p = (zend_mm_block *) 0x80e81aff8
no_cache_notice = 0
had_problems = 1
valid_beginning = 1
#1 0x0000000805a0fe03 in zend_mm_check_ptr (heap=0x802848c00, ptr=0x80e81b048, silent=1,
__zend_filename=0x80eca3d6c "/usr/ports/databases/php56-redis/work/phpredis-2.2.7/redis_commands.c", __zend_lineno=1286,
__zend_orig_filename=0x0, __zend_orig_lineno=0) at zend_alloc.c:1389
p = (zend_mm_block *) 0x80e81aff8
no_cache_notice = 0
had_problems = 0
valid_beginning = 1
#2 0x0000000805a0e1c7 in _zend_mm_free_int (heap=0x802848c00, p=0x80e81b048,
__zend_filename=0x80eca3d6c "/usr/ports/databases/php56-redis/work/phpredis-2.2.7/redis_commands.c", __zend_lineno=1286,
__zend_orig_filename=0x0, __zend_orig_lineno=0) at zend_alloc.c:2068
mm_block = (zend_mm_block *) 0x7fffffffbea0
next_block = (zend_mm_block *) 0x7300000001
size = 1
[...]
Let me know if you need more info / full trace and so on.
thanks ,