Item1566: Trunk checkout doesn't work - new Prefs code

I have a basic checkout of the trunk code (no local modifications). When I try to view any page I get this:

Can't take log of 0 at /home/foswiki/trunk/core/lib/Foswiki/Prefs.pm line 399.
 at /home/foswiki/trunk/core/lib/Foswiki/Prefs.pm line 399
   Foswiki::Prefs::getPreference('Foswiki::Prefs=HASH(0x9b7eab8)', 'NOAUTOLINK') called at /home/foswiki/trunk/core/lib/Foswiki/Render.pm line 1236
   Foswiki::Render::getRenderedVersion('Foswiki::Render=HASH(0xa11c7b8)', ' </div><!-- /foswikiTopic-->\x{a}<div class="foswikiContentFooter...', 'Foswiki::Meta=HASH(0xa101950)') called at /home/foswiki/trunk/core/lib/Foswiki/Meta.pm line 2130
   Foswiki::Meta::renderTML('Foswiki::Meta=HASH(0xa101950)', ' </div><!-- /foswikiTopic-->\x{a}<div class="foswikiContentFooter...') called at /home/foswiki/trunk/core/lib/Foswiki/UI/View.pm line 399
   Foswiki::UI::View::_prepare(' %IF{"$raw=\'on\'" then=\'<div class="patternSigLine"><span c...', 'Foswiki::Meta=HASH(0xa101950)', 0) called at /home/foswiki/trunk/core/lib/Foswiki/UI/View.pm line 384
   Foswiki::UI::View::view('Foswiki=HASH(0x968b208)') called at /home/foswiki/trunk/core/lib/Foswiki/UI.pm line 289
   Foswiki::UI::__ANON__() called at /usr/local/share/perl/5.10.0/Error.pm line 415
   eval {...} called at /usr/local/share/perl/5.10.0/Error.pm line 407
   Error::subs::try('CODE(0x97650e0)', 'HASH(0xa1016c0)') called at /home/foswiki/trunk/core/lib/Foswiki/UI.pm line 358
   Foswiki::UI::_execute('Foswiki::Request=HASH(0x9b58838)', 'CODE(0x9b583d8)', 'view', 1) called at /home/foswiki/trunk/core/lib/Foswiki/UI.pm line 260
   Foswiki::UI::handleRequest('Foswiki::Request=HASH(0x9b58838)') called at /home/foswiki/trunk/core/lib/Foswiki/Engine/CGI.pm line 27
   Foswiki::Engine::CGI::run('Foswiki::Engine::CGI=HASH(0x978af60)') called at /home/foswiki/trunk/core/bin/view line 45.

I tried to understand what the code at that line is supposed to do, but couldn't make any sense of it, and there is no supporting documentation. The log of the ord of the last character in the string? WTF?

This is not reproducible on trunk.foswiki.org at the moment.

-- CrawfordCurrie - 04 May 2009

George reported a similar issue yesterday and I fixed it. Now I don't have access to the code, but I'll look this ASAP. The strange thing is I left home with a trunk checkout working. I'll review my environment.

-- GilmarSantosJr - 04 May 2009

I'm still seeing the same issue.

Can't take log of 0 at /var/www/SVN/foswiki/core/lib/Foswiki/Prefs.pm line 399.
 at /var/www/SVN/foswiki/core/lib/Foswiki/Prefs.pm line 399
        Foswiki::Prefs::getPreference('Foswiki::Prefs=HASH(0x8f31f1c)', 'NOAUTOLINK') called at /var/www/SVN/foswiki/core/lib/Foswiki/Render.pm line 1236
        Foswiki::Render::getRenderedVersion('Foswiki::Render=HASH(0x95bdfb4)', ' </div><!-- /foswikiTopic-->\x{a}<div class="foswikiContentFooter...', 'Foswiki::Meta=HASH(0x95a3814)') called at /var/www/SVN/foswiki/core/lib/Foswiki/Meta.pm line 2130
        Foswiki::Meta::renderTML('Foswiki::Meta=HASH(0x95a3814)', ' </div><!-- /foswikiTopic-->\x{a}<div class="foswikiContentFooter...') called at /var/www/SVN/foswiki/core/lib/Foswiki/UI/View.pm line 399
        Foswiki::UI::View::_prepare(' %IF{"$raw=\'on\'" then=\'<div class="patternSigLine"><span c...', 'Foswiki::Meta=HASH(0x95a3814)', 0) called at /var/www/SVN/foswiki/core/lib/Foswiki/UI/View.pm line 384
        Foswiki::UI::View::view('Foswiki=HASH(0x89f0f4c)') called at /var/www/SVN/foswiki/core/lib/Foswiki/UI.pm line 289
        Foswiki::UI::__ANON__() called at /var/www/SVN/foswiki/core/lib/CPAN/lib//Error.pm line 379
        eval {...} called at /var/www/SVN/foswiki/core/lib/CPAN/lib//Error.pm line 371
        Error::subs::try('CODE(0x8af2150)', 'HASH(0x95a361c)') called at /var/www/SVN/foswiki/core/lib/Foswiki/UI.pm line 358
        Foswiki::UI::_execute('Foswiki::Request=HASH(0x8f04944)', 'CODE(0x8f04668)', 'view', 1) called at /var/www/SVN/foswiki/core/lib/Foswiki/UI.pm line 260
        Foswiki::UI::handleRequest('Foswiki::Request=HASH(0x8f04944)') called at /var/www/SVN/foswiki/core/lib/Foswiki/Engine/CGI.pm line 27
        Foswiki::Engine::CGI::run('Foswiki::Engine::CGI=HASH(0x8df8028)') called

-- GeorgeClark - 05 May 2009

I realized a scenario where the last byte of map bitstring can be 0 and I fixed it. Can you test it now?

-- GilmarSantosJr - 05 May 2009

That seems to have done the trick. But Gilmar, could you please, please, please improve the in-code doc of how it is all supposed to work. I really couldn't make any sense of the code when I went to read it, and your latest checkin doesn't help even knowing the symptoms

Thanks!

-- CrawfordCurrie - 05 May 2009

I just added Item1574 to address the documentation issue. So I'm closing this one.

-- GilmarSantosJr - 05 May 2009