Public bug reported:
# lsb_release -rd
Description: Ubuntu 16.04.1 LTS
Release: 16.04
# apt-cache policy php7.0-common
php7.0-common:
Installed: 7.0.13-0ubuntu0.16.04.1
Candidate: 7.0.15-1+deb.sury.org~xenial+1
Version table:
7.0.15-1+deb.sury.org~xenial+1 500
500 http://ppa.launchpad.net/ondrej/php/ubuntu xenial/main amd64
Packages
*** 7.0.13-0ubuntu0.16.04.1 500
500 http://ubuntu.mirror.true.nl/ubuntu xenial-updates/main amd64
Packages
100 /var/lib/dpkg/status
7.0.8-0ubuntu0.16.04.3 500
500 http://ubuntu.mirror.true.nl/ubuntu xenial-security/main amd64
Packages
7.0.4-7ubuntu2 500
500 http://ubuntu.mirror.true.nl/ubuntu xenial/main amd64 Packages
When using multiple values for session.save_path with session.save_handler
redis / memcache, a session_start results in an out of memory error:
# php session.php
mmap() failed: [12] Cannot allocate memory
mmap() failed: [12] Cannot allocate memory
PHP Fatal error: Out of memory (allocated 2097152) (tried to allocate
18446744073709545761 bytes) in /root/session.php on line 2
To reproduce:
php.ini
session.save_handler = memcache
session.save_path = "tcp://127.0.0.1:11211,tcp://127.0.0.1:11212"
(doesn't have to be a working memcache instance, tested it both ways)
session.php
<?php
session_start();
?>
Same issue when using redis instead of memcache. When using just one value in
the save_path, it works without issues.
This issue was not present in 7.0.8-0ubuntu0.1. When upgrading to
7.0.15-1+deb.sury.org~xenial+1
(https://launchpad.net/~ondrej/+archive/ubuntu/php) it works without
problem.
Also see: https://bugs.php.net/bug.php?id=73729 (wasn't able to find the
commit where the issue was fixed)
** Affects: php7.0 (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1661580
Title:
Out of memory session_start
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