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Re: White Screen of Death

by grizzley (Chaplain)
on Sep 09, 2008 at 08:26 UTC ( [id://710005]=note: print w/replies, xml ) Need Help??


in reply to White Screen of Death

Separate the problem source:

Try to load pure HTML page first on server with mod_perl and Apache::DBI disabled. Does it work?

Now enable mod_perl and try to run simple perl script without DB. Does it work?

Now you can ask more precise question :)

Update: my apologies, didn't read carefully what is the problem about :/ Downvote it if you like, I want to stay at Monk level as long as possible :)

Replies are listed 'Best First'.
Re^2: White Screen of Death
by sasdrtx (Friar) on Sep 09, 2008 at 11:14 UTC
    While jd_g didn't give us much to go on, he* did state that the problem only "periodically" occurs. So I don't see how your suggestions are going to accomplish much.

    ikigami got it right (of course); so many people resort to psychic debugging (or ask others to) when the system is happy to tell them what went wrong.


    * or she.


    sas
      Sorry for not giving you much to go on. I was hoping someone out there had experienced this problem before. From my experience, a blank white screen is not very common. I've tried to debug, but the problem never occurs when I want it to. It seems to occur randomly. The last thing I expect is to have other's do the dirty work for me. I debug all the time. Before posting, I searched perlmonks as well as many other sites. I've checked the log files on the server. I've checked the mysql processes when the problem occured. I probably should have mentioned this, but like I previosly said... I was hoping someone out there had experienced the blank white page before and could give some tips.
        A blank white page is far too generic a symptom to correlate to anything. It means only that you produced no visible content. Here's what I would do:
        • See if there's an error message (probably not, since no error was displayed).
        • Look at the page source. Did anything get produced? Does it give you a clue?
        • Add some traces (write html comments perhaps) to the output.

        sas

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