PHP5-FPM fail to start


I’ve installed C sdk then php by executing pecl install couchbase.

I have nginx + php5-fpm with php version 5.6.3.

When I hit the nginx, I get 502 Bad Gateway.

Here’s GDB output.

root@homestead:/tmp# gdb /usr/sbin/php5-fpm /tmp/coredump-php5-fpm.3221
GNU gdb (Ubuntu 7.7.1-0ubuntu5~14.04.2) 7.7.1
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and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
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Reading symbols from /usr/sbin/php5-fpm...(no debugging symbols found)...done.
[New LWP 3221]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/".
Core was generated by `php-fpm: pool www                                                       '.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f1fac4db63e in xdebug_execute_internal (current_execute_data=0x7f1faf69a7c0, fci=0x0, return_value_used=0)
    at /build/buildd/xdebug-2.2.5/xdebug-2.2.5/xdebug.c:1589
1589    /build/buildd/xdebug-2.2.5/xdebug-2.2.5/xdebug.c: No such file or directory.
(gdb) bt
#0  0x00007f1fac4db63e in xdebug_execute_internal (current_execute_data=0x7f1faf69a7c0, fci=0x0, return_value_used=0)
    at /build/buildd/xdebug-2.2.5/xdebug-2.2.5/xdebug.c:1589
#1  0x000000000077de70 in ?? ()
#2  0x0000000000714d88 in execute_ex ()
#3  0x00000000006c9829 in dtrace_execute_ex ()
#4  0x00007f1fac4dab6c in xdebug_execute_ex (execute_data=0x7f1faf69a7c0) at /build/buildd/xdebug-2.2.5/xdebug-2.2.5/xdebug.c:1437
#5  0x00000000006cd08a in zend_eval_stringl ()
#6  0x00007f1fa1a1fc46 in zm_activate_couchbase (type=<optimized out>, module_number=<optimized out>) at /tmp/pear/temp/couchbase/couchbase.c:109
#7  0x00000000006e19f0 in zend_activate_modules ()
#8  0x0000000000677f6a in php_request_startup ()
#9  0x0000000000463d32 in main ()
(gdb) Quit

What’s causing it?

This is an issue with XDebug. See PCBC-294 for more details.

Thank you pvarley. That fixed it :slight_smile: