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[vdr] Re: Kernel-Patch to make VDR undisturbable
Andreas Schultz (aschultz@cs.uni-magdeburg.de) schrieb:
> I don't think patching the kernel is the right way to go.
Do you see a possibility in userspace to make sure that VDR runs undisturbed?
I do not. IMHO a kernel modification is unavoidable.
> Besides, you should
> be able to achive the same thing by using real time scheduling priorities and
> policy. SCHED_FIFO or SCHED_RR should do the same thing without the kernel
> patch.
No. Scheduling VDR with realtime priority can cause deadlocks. I did tests
and whole machine stopped. A hardware reset was needed after.
Matthias.
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