Since I updated Wordpress 3.5.2 and SEO 1.4.10 I have got in my sidebar a "Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 100 bytes) in ***/wp-includes/meta.php on line 571".
If I deactivate Jetpack or SEO -> everything is fine. Both don´t work together ...
Dashboard works fine.
My system:
Linux dd15034 2.6.32-46-server #105-Ubuntu SMP Fri Mar 1 00:18:55 UTC 2013 x86_64
Server Software Apache
PHP Version 5.3.18-nmm1
MySQL Server 5.1.66-nmm3-log
Memory Limit 256 MB
Any ideas?