Segmentation fault

[mgdb]

Hi all,

I installed 2 years ago, roundcube 5.1 and it worked fine.
Now, I a looking for a new server and I succed to install from sources :
- apache2 2.2.21
- php5 3.11
- mysql 5.0.67
- roundcube 7.2
My problem is when I want to log in, apache crash and I have a segmentation fault in the log apache.
I activated the logs in roundcube but nothing apears.

I can log in with phpMyAdmin
Roundcube installer had no errors : I can send email via port 587, I can Imap via port 143 without problems.

Yesterday I had some errors in the roundcube database : the session is writting and after it is deleted.

Can someone help me, this problem made me mad for more a week   
Thanks a lot

[SKaero]

Hmm haven't seen an Apache Seg-fault before, what does the Apache logs say about it?

[mgdb]

Hello,
Thanks for your reply.
Apache said :  [notice] child pid 7236 exit signal Segmentation fault (11)
And that is all. I put apache log level to Debug, and it is the only line I have in the log file.

I am trying to re-install php