I am trying the small attached program on FreeBSD 6.3 (amd64, SCHED_4BSD) and 7-STABLE (i386, SCHED_ULE), both with libthr as threads library and on both it produces "BROKEN" message.
I compile this program as follows: cc sched_test.c -o sched_test -pthread I believe that the behavior I observe is broken because: if thread #1 releases a mutex and then tries to re-acquire it while thread #2 was already blocked waiting on that mutex, then thread #1 should be "queued" after thread #2 in mutex waiter's list. Is there any option (thread scheduler, etc) that I could try to achieve "good" behavior? P.S. I understand that all this is subject to (thread) scheduler policy, but I think that what I expect is more reasonable, at least it is more reasonable for my application. -- Andriy Gapon
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