------- Comment #12 from jakub at gcc dot gnu dot org 2008-01-29 21:22 ------- These tests time out from time to time when the testing box is busy, that's quite normal. The problem is in the use of sched_yield (), which puts the calling thread to the end of the runqueue. If there are many processes in the runqueue, one or more of the 10 threads might miss the 10 sec timeout in one or more of the 20 repetitions in 100 sched_yield calls. So just ignore this.
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34982