Hi Stefan,
Just a quick reply for now:
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I'm cc'ing also Martin Pohlack, because I was told he is the man for profiling :).
I'm also reading l4-hackers.
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- Next, fiasco crashes executing this line of code:
s_scale = (int)(( (float) monsize / o ) * SCALE_1_TO_1);
You really should not do floating point stuff in the kernel.
Maybe you can activate the code path two lines below which uses only integer math?
Cheers, Martin