The fact they may work with a specific option turned off is *not* proof
that they are "fine" - merely that it doesn't trip over the problem. It's
kind of like being told your car's brakes are possibly defective and you
should avoid heavy braking - and your response is to choose a path home that
doesn't involve any heavy braking and then saying your brakes are "fine".
It's even more worrisome that people are suggesting "just turn it off"
without being able to point at a reason *why* it needs to be turned off.
Which gives you more confidence:
Totally understand your points. However, Xenomai has been in many distribution, like Ubuntu. it is simply a kind of interest to get something to work. I had been an embedded engineer for many years, ( but never dealt with Linux or Linux kernel). There are many Realtime OSes out there, but costs a bomb and for hobbyist like me would not spend money buying it. Having said that, there are a few open realtime patches that make LInux to be realtime, deterministic. To what level, I am going to test it out. That is my intention. If you are interested, please have a look at www.xenomia.org.
It has nothing to do with confidence, it is pure experiment, hobby. However, I do appreciate sharing your opinions. When times, I will have the answers.
NVidia's modules won't work on a kernel defined with LOCKDEP enables, we
don't know why, so just turn it off..
versus
NVidia's modules won't work on a LOCKDEP kernel because with that defined,
the locking functions called by the module are redirected to debugging LOCKDEP
variants that are EXPORT_SYMBOL_GPL. When you try to modprobe it, the _GPL
variants aren't available to the NVidia module due to its licensing, so you
get 'unresolved symbol' errors. This information should be enough for you to
figure out how to fix your personal copy and make it work (but not to make
that copy redistributable).
See the difference?
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