pussuw commented on issue #8917:
URL: https://github.com/apache/nuttx/issues/8917#issuecomment-1505177124
I finally have time to dig into this issue.
I will fix the waitobj issue by mapping any such object into kernel
addressable memory. I think semaphores and mqueues qualify as such (more?).
This achieves two things:
- It once and for all fixes accessing (user) synchronization structures from
the kernel
- It avoids the unnecessary TLB flush / performance penalty when swapping
mappings
Patches related to this will start coming soonish.
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