On Friday 30 October 2009 15:50:22 Jonathan Haws wrote:

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I suspect that the msync() was merely serving as a very

heavyweight

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memory barrier.

I did try hacking the mb() calls from the kernel source to use

them in user space, but they had no effect.  I still had to include
the calls to msync().
=20
What did the resulting mb() that you used look like?

asm("eieio; sync");