Lee Revell wrote:
The solution to your problem (which is as old as the hills) involves priority inheriting mutexes which are available in the RT preempt patch (if you build with CONFIG_PREEMPT_RT). This should be usable for hard realtime applications.
Yup. I was just pointing out that userspace apps *can* block other userspace apps.
http://people.redhat.com/mingo/realtime-preempt
If you just need very good soft realtime performance I recommend PREEMPT_DESKTOP.
How does this compare with Inaky's "robust mutexes" patch?
Chris
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