John Baldwin wrote:
>On Monday 01 November 2004 06:04 pm, David Xu wrote:
>
>
>>Not every important, I think I have another very important history
>>bug in hand, did you get my "fix famous libpthread conditional
>>variable race condition" mail ? :-)
>>
>>
>
>Oooo, can I test it please? We are still having problems with mono on HEAD
>here at work. I tried merging the changes in uthread_cond.c 1.32 to
>libpthread but that seemed to make it worse. The problems seem to be that a
>signal handler is being run when the SYNCQ sflag is set (but the thread is
>not on a cv or a mutex queue), and the handler calls sem_post() which is
>supposed to be signal safe. sem_post() tries to lock a mutex and then bombs
>with the assertion failure.
>
>
>
You can try:
http://people.freebsd.org/~davidxu/kse/thr_cond.c.diff
But it was not designed to fix the problem you have seen. :-)