Title: 3.5.1 issue
Last modified: August 20, 2016

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# 3.5.1 issue

 *  [wwwcight](https://wordpress.org/support/users/wwwcight/)
 * (@wwwcight)
 * [13 years, 4 months ago](https://wordpress.org/support/topic/351-issue/)
 * I’ve just updated to 3.5.1 and now the requests to the site are causing serious
   CPU overload. I’ve deactivated all my plugins, as I thought that might be the
   issue but its still not looking good. Clicking on any link spawns an apache2 
   process that takes 30% of the CPU and several other apache2 processes taking 
   about 10% cpu or so says ‘top’ earlier today I was seeing load averages of 24
   to 35 and I could not SSH in to the box at times. I would downgrade to version
   3.5.0 which worked fine previously but I’m not sure how to achieve that without
   uninstalling the whole thing and starting from scratch.

Viewing 7 replies - 1 through 7 (of 7 total)

 *  [Mark Ratledge](https://wordpress.org/support/users/songdogtech/)
 * (@songdogtech)
 * [13 years, 4 months ago](https://wordpress.org/support/topic/351-issue/#post-3433522)
 * Switch to the twentytwelve theme for a minute to kill off any php processes that
   are runnning amuck. Reboot the server, too.
 *  [CDNEditor](https://wordpress.org/support/users/cdneditor/)
 * (@cdneditor)
 * [13 years, 4 months ago](https://wordpress.org/support/topic/351-issue/#post-3433724)
 * We’re seeing the same thing. We have a dedicated set of servers for all of our
   WordPress sites and CPU spiked right after the 3.5.1 upgrades we did on the 27th
   of January. We’ve done everything including theme changes, reboots, database 
   cleanups, you name it. It all started with the upgrade and we’re not able to 
   handle the user loads were used to.
 *  [esmi](https://wordpress.org/support/users/esmi/)
 * (@esmi)
 * [13 years, 4 months ago](https://wordpress.org/support/topic/351-issue/#post-3433725)
 * **[@cdneditor](https://wordpress.org/support/users/cdneditor/)**: As per the 
   [Forum Welcome](http://codex.wordpress.org/Forum_Welcome#Where_To_Post), please
   [post your own topic](http://wordpress.org/support/forum/how-to-and-troubleshooting#postform).
   Posting in an existing topic prevents us from being able to track issues by topic.
   Added to which, your problem – despite any similarity in symptoms – is likely
   to be completely different.
 *  Thread Starter [wwwcight](https://wordpress.org/support/users/wwwcight/)
 * (@wwwcight)
 * [13 years, 4 months ago](https://wordpress.org/support/topic/351-issue/#post-3433732)
 * Yeah did all that has been suggested, no difference, stopped and started apache,
   killed processes, checked htaccess, etc etc.
 * Its just not helping, annoying that there is no rollback option.
 *  Thread Starter [wwwcight](https://wordpress.org/support/users/wwwcight/)
 * (@wwwcight)
 * [13 years, 4 months ago](https://wordpress.org/support/topic/351-issue/#post-3433733)
 * Oh and its already 2012 theme.
 *  [Mark Ratledge](https://wordpress.org/support/users/songdogtech/)
 * (@songdogtech)
 * [13 years, 4 months ago](https://wordpress.org/support/topic/351-issue/#post-3433738)
 * Do you have a database backup from before the upgrade? You can restore that and
   reupload 3.5 files and folders to go back.
 *  Thread Starter [wwwcight](https://wordpress.org/support/users/wwwcight/)
 * (@wwwcight)
 * [13 years, 4 months ago](https://wordpress.org/support/topic/351-issue/#post-3433739)
 * Well about a month before… I’d loose a fair bit of content. That will teach me
   ehh.

Viewing 7 replies - 1 through 7 (of 7 total)

The topic ‘3.5.1 issue’ is closed to new replies.

## Tags

 * [cpu](https://wordpress.org/support/topic-tag/cpu/)
 * [load](https://wordpress.org/support/topic-tag/load/)
 * [top](https://wordpress.org/support/topic-tag/top/)
 * [troubleshooting](https://wordpress.org/support/topic-tag/troubleshooting/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 7 replies
 * 4 participants
 * Last reply from: [wwwcight](https://wordpress.org/support/users/wwwcight/)
 * Last activity: [13 years, 4 months ago](https://wordpress.org/support/topic/351-issue/#post-3433739)
 * Status: not resolved

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