Description:
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Compiling all php versions with the same options and disabling all extensions results in only 5.2.7rc1 running mediawiki stable (for a few weeks now, basically as from time it was released) via fastcgi/php-cgi.

With 5.2.7rc2 and rc3 the php-cgi childs start to hang with 100% cpu-load on nearly all requests, some work tho until all proc are at 100%.

Reverting to rc1 everything works like a charm.

Logs show nothing except timeout after xxx seconds.

Reproduce code:
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my compile-options:

'./configure' '--with-mysql=/usr/local/mysql' '--with-openssl' '--with-gd' '--enable-ftp' '--with-bz2' '--enable-sysvsem' '--enable-sysvshm' '--enable-sockets' '--with-gettext' '--with-jpeg-dir=/usr/lib' '--enable-exif' '--with-png-dir=/usr/lib' '--enable-zend-multibyte' '--with-zlib-dir=/usr/include' '--enable-fastcgi' '--disable-cli' '--enable-discard-path' '--enable-mbstring' '--without-sqlite' '--enable-inline-optimization' '--disable-debug' '--enable-bcmath' '--with-mcrypt'

Expected result:
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work :-)

Actual result:
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doesn?t work :-)