Am 20.06.2011 16:57, schrieb Gilles Chanteperdrix:
On 06/20/2011 04:14 PM, Michael Thalmeier wrote:
Hello !
We have a xenomai application that uses mprotect to change write
protection in order to set and clear breakpoint codes.
This works quite well (the code invoking mprotect switches to linux,
but thats ok).
The problem is that from time to time the realtime task executing code
in the area changed with mprotect also switches domains to handle a page
fault.
Is there some functionality in xenomai to change memory protection not
using mprotect ?
Attached you find a short sample that can reproduce this problem.
I am afraid this is platform dependent, on what architecture do you get
this behaviour?
Hello,
Now we use x86 platform.
later we will use ARM9 or higher.
with Xenomai 2.5.6 .
Thanks
Johann
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