session_start(): Failed to read session data: memcache using php7.2 about pecl-memcache

[tomassrnka]

Hi, sorry we are on holidays, i will take a look at it next week when im back.

[kmille]

any updates?

[kmille]

Hey, still on holiday? We came across the same bug today after upgrading to 18.04 for a different customer.

[kmille]

For me it just looks like you return the wrong value. Like: return error; (even if everything works)
probably just this: https://github.com/php/php-src/blob/master/ext/session/session.c#L441
I currently don't have the time to make a PR (+ I don't exactly where I need to patch it)

[tomassrnka]

@kmille I tried to reproduce the bug, yes it is there with php-memcache from Ubuntu 18.04, however if you use latest release from this repo, it works as expected.
# php a.php
done

[tomassrnka]

@kmille -> could you please try it with current pecl-memcache extension from our repo? It should be pretty easy to build.

# install deps
apt-get install  php7.2-dev git make 

# Build extension
CFLAGS="-fstack-protector-strong -fpic -fpie -O2"
CPPFLAGS="$PHP_CFLAGS"
LDFLAGS="-Wl,-O1 -Wl,--hash-style=both -pie"
set -eux
cd /usr/src
git clone https://github.com/websupport-sk/pecl-memcache.git
cd pecl-memcache; 
phpize 
./configure 
make -j$(nproc)

# remove old one
apt-get remove php7.2-memcache # or php-memcache

make install 

[kmille]

Hey,
thanks for caring! We upgraded the system so I can't reproduce it anymore.