Messages in this thread | | | Subject | Re: FUSYN and RT | From | Daniel Walker <> | Date | 12 Apr 2005 14:25:19 -0700 |
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On Tue, 2005-04-12 at 13:33, Joe Korty wrote: > On Tue, Apr 12, 2005 at 11:15:02AM -0700, Daniel Walker wrote: > > > It seems like these two locks are going to interact on a very limited > > basis. Fusyn will be the user space mutex, and the RT mutex is only in > > the kernel. You can't lock an RT mutex and hold it, then lock a Fusyn > > mutex (anyone disagree?). That is assuming Fusyn stays in user space. > > Well yeah, but you could lock a fusyn, then invoke a system call which > locks a kernel semaphore.
Right .. For deadlock detection, I want to assume that the fusyn lock is on the outer level. That way both deadlock detection system will work properly (in theory).
Daniel
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