SCHED_ULE with SMP broke libpthread/libthr on 5.4-RELEASE

[Steven Jurczyk]

**Using SCHED_ULE on SMP/HT machine broke applications which use 
libpthread/libthr, probably at context switching between threads... The 
applications simply hang and they aren't killable (kill -9 <pid> don't 
work).. Usually this also break kernel shutdown (can't flush some inodes 
or blocks)...

This is very big problem for people who want use mysql_server on SMP 
machines...
On FreeBSD 5.4-RC3 this don't happend...

Details at http://www.freebsd.org/cgi/query-pr.cgi?pr=threads/80887

--
best regards
steve at home.pl