SA_SIGINFO signal handling is broke in 1.9.0-beta2
The kernel is unable to send signals with SA_SIGINFO. This effectively breaks all system with padlock, as this is used in openssl padlock sha1/sha256 acceleration code.
See also:
http://grsecurity.net/pipermail/grsecurity/2009-August/000968.html
http://forums.grsecurity.net/viewtopic.php?f=3&t=2173
(from redmine: issue id 122, created on 2009-08-08, closed on 2009-08-09)