Since v3.0.1, using phpmyadmin touch off segmentfault

[kn007]

In php.ini(php 7.1.2):

session.save_handler = memcached
session.save_path = "/tmp/memcached.sock"

since v3.0.1, phpmyadmin 4.6.6 creat session will touch off:

*** Error in `php-fpm: pool www': munmap_chunk(): invalid pointer: 0x00007f3c6fc9d800 ***
[19-Feb-2017 19:02:39] WARNING: [pool www] child 25346 said into stderr: "======= Backtrace: ========="
[19-Feb-2017 19:02:39] WARNING: [pool www] child 25346 said into stderr: "/lib64/libc.so.6(+0x7c017)[0x7f3c7155a017]"
[19-Feb-2017 19:02:39] WARNING: [pool www] child 25346 said into stderr: "/usr/local/php/lib/php/extensions/no-debug-non-zts-20160303/memcached.so(php_memcached_exist+0x43)[0x7f3c6f57fdc3]"
[19-Feb-2017 19:02:39] WARNING: [pool www] child 25346 said into stderr: "/usr/local/php/lib/php/extensions/no-debug-non-zts-20160303/memcached.so(ps_validate_sid_memcached+0xc)[0x7f3c6f580e2c]"
[19-Feb-2017 19:02:39] WARNING: [pool www] child 25346 said into stderr: "php-fpm: pool www[0x69a3a4]"
[19-Feb-2017 19:02:39] WARNING: [pool www] child 25346 said into stderr: "php-fpm: pool www(php_session_start+0xad)[0x69ac8d]"
[19-Feb-2017 19:02:39] WARNING: [pool www] child 25346 said into stderr: "php-fpm: pool www[0x69be45]"
[19-Feb-2017 19:02:39] WARNING: [pool www] child 25346 said into stderr: "php-fpm: pool www[0x87699a]"
[19-Feb-2017 19:02:39] WARNING: [pool www] child 25346 said into stderr: "php-fpm: pool www(execute_ex+0x2b)[0x8656bb]"
[19-Feb-2017 19:02:39] WARNING: [pool www] child 25346 said into stderr: "php-fpm: pool www(zend_execute+0x180)[0x8c0970]"
[19-Feb-2017 19:02:39] WARNING: [pool www] child 25346 said into stderr: "php-fpm: pool www(zend_execute_scripts+0xb4)[0x81ede4]"
[19-Feb-2017 19:02:39] WARNING: [pool www] child 25346 said into stderr: "php-fpm: pool www(php_execute_script+0x280)[0x7bf5b0]"
[19-Feb-2017 19:02:39] WARNING: [pool www] child 25346 said into stderr: "php-fpm: pool www[0x43bfbe]"
[19-Feb-2017 19:02:39] WARNING: [pool www] child 25346 said into stderr: "/lib64/libc.so.6(__libc_start_main+0xf5)[0x7f3c714ffb45]"
[19-Feb-2017 19:02:39] WARNING: [pool www] child 25346 said into stderr: "php-fpm: pool www[0x43cdf9]"

Had 3 different error:

[19-Feb-2017 02:35:25] WARNING: [pool www] child 2274 said into stderr: "*** Error in `php-fpm: pool www': munmap_chunk(): invalid pointer: 0x00007fb5a1498800 ***"
[19-Feb-2017 02:41:19] WARNING: [pool www] child 1133 said into stderr: "*** Error in `php-fpm: pool www': double free or corruption (out): 0x00007fb5a147e000 ***"
[19-Feb-2017 02:46:02] WARNING: [pool www] child 32372 said into stderr: "*** Error in `php-fpm: pool www': double free or corruption (out): 0x00007fb5a147e000 ***"
[19-Feb-2017 02:59:29] WARNING: [pool www] child 19336 said into stderr: "*** Error in `php-fpm: pool www': free(): invalid next size (fast): 0x00007f77f949d000 ***"
[19-Feb-2017 19:02:39] WARNING: [pool www] child 25346 said into stderr: "*** Error in `php-fpm: pool www': munmap_chunk(): invalid pointer: 0x00007f3c6fc9d800 ***"

using v3.0.0, phpmyadmin work fine.

[sodabrew]

What version of libmemcached are you using?

Do you have the igbinary extension installed as well?

[sodabrew]

I found and fixed the issue. Was the same issue as #327 but in a different spot.

[kn007]

yes, with igbinary and libmemcached 1.0.18.

[sodabrew]

Please try memcached 3.0.3 to confirm if this is indeed fixed now.

[kn007]

@sodabrew Thank you. I will feedback later.

[kn007]

@sodabrew Yes, it's fix now.
Thanks a lot.