[TYPO3-core] FYI24 #17732: Fatal error when installing TYPO3 with PHP-APC (no session is stored)

[Ernesto Baschny [cron IT]]

Hi,

Committed to:

- trunk, rev. 10636
- TYPO3_4-5, rev. 10637
- TYPO3_4-4, rev. 10638

Cheers,
Ernesto

Ernesto Baschny [cron IT] schrieb am 24.02.2011 09:15:
> Hi,
> 
> This patch will be committed soon, if noone objects, so that we can
> include it in our next hotfix release.
> 
> Type: Bug
> 
> BT reference: http://bugs.typo3.org/view.php?id=17732
> 
> Branches: trunk
> 
> Problem:
> 
> When installing TYPO3 together on a system with loaded PHP-APC, e.g. the
> one that ships with Debian Squeeze (APC 3.1.3, but affected seems to be
> also 3.1.4-dev, 3.1.3p1, 3.1.2, 3.0.19) you get a Fatal error.
> 
> On the first step of the install tool:
> 
> Fatal error: Class 't3lib_div' not found in
> /../typo3/sysext/install/mod/class.tx_install_session.php on line 347
> 
> See screen in the attachment (Fatal Error on the bottom).
> 
> No further steps are then possible (you then get a login screen).
> 
> 
> Solution:
> 
> It turns out that the list of loaded classes is incomplete when PHP
> tries to write the session data. t3lib_div is not there anymore. This
> behaviour was introduced in 0017511.
> 
> The PHP bug is already documented and acknowledged by PHP / APC authors:
> 
> http://pecl.php.net/bugs/bug.php?id=16721 [^]
> 
> From the comment from Rasmus
> 
>> [2011-02-14 16:44 UTC] rasmus at php dot net
>>
>> Once again, the fix is trivial. Put session_write_close() in
>> your script when you are done with the session.
>>
>> We'll come up with a fix eventually, but it isn't a trivial
>> thing to fix.
> 
> Calling session_write_close() at the destructor of the
> tx_install_session class seems to be the most easy solution.
> 
> 
> How to test:
> 
> Enable the PHP extension APC on a Debian Squeeze machine (or other which
> might be affected) and try to install TYPO3 4.5.1 (e.g. introduction
> package).
> 
> 
> Cheers,
> Ernesto
>