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White Screen O' Death


  • tourbin
    Participant

    @tourbin

    Everything was working just fine, and then I woke up this morning and I get the WSOD (blank white screen) whenever I try to access my WPMU backend. The frontend of the site still functions normally.

    After tinkering around a bit I have noticed that removing Buddypress from the plugins folder allows me to access the backend, but now the frontend is white & blank.

    WPMU: 2.8.6

    Buddypress: 1.1.3

Viewing 10 replies - 1 through 10 (of 10 total)

  • Paul Gibbs
    Keymaster

    @djpaul

    Probably because you’re using the BuddyPress theme (which of course requires BuddyPress to be active).


    tourbin
    Participant

    @tourbin

    Sure, that explains why it breaks after I remove Buddypress, but why the blank white screen when Buddypress is still installed?

    I am narrowing the problem down to having too many sites, which is weird.

    For example, I deleted about 200 sites and got it working again. So when I have 30 sites assigned to admin everything seems to work fine. But after I add the 200 sites back I begin to see the WSOD as I add new sites from admin.

    Anybody have any suggestions?


    Paul Gibbs
    Keymaster

    @djpaul

    Might be a memory issue. Anything in your web server error logs?


    tourbin
    Participant

    @tourbin

    I found nothing in the error logs to suggest a memory problem, but I went and defined(‘WP_MEMORY_LIMIT’, ‘128M’); and things seem to be stable now.

    I have added all the sites back and so far no white screens … which is great news.

    Is it OK to leave the MEMORY_LIMIT at 128M? What is the recommended LIMIT for performance on a WPMU install with around 250 sites?

    (and thanks for your help)


    Andrea Rennick
    Participant

    @andrea_r

    “Is it OK to leave the MEMORY_LIMIT at 128M? What is the recommended LIMIT for performance on a WPMU install with around 250 sites?”

    At least that.


    Paul Gibbs
    Keymaster

    @djpaul

    Sounds like this issue’s solved. The extra memory that BuddyPress might use must have just pushed your server over the edge.


    tourbin
    Participant

    @tourbin

    Yes, so far so good. I’ll keep it at 128M and see if that holds.

    Thanks for the advice.


    dpolant
    Participant

    @dpolant

    While we’re talking about the white screen of death, I am making a plugin that works fine if you activate it sitewide and gives the good old white screen when I activate it not sitewide. Any ideas in general why this might happen?

    Does any one know exactly what the white screen means, or what specifically causes it?


    Andrea Rennick
    Participant

    @andrea_r

    White screen is always an error of some kind, usually php. that’s why there is no one answer and everyone says read the error logs. :)

    It;s designed this was to suppress the output of the specific error for security reasons (at least that’s what I remember from a while ago).


    jivany
    Participant

    @jivany

    You may want to try one of the ideas mentioned on this site if you’re having PHP errors.

    http://itslennysfault.com/force-php-to-show-all-errors-or-save-them-to-a-log-for-trouble-shooting

Viewing 10 replies - 1 through 10 (of 10 total)
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