Valgrind hits on i386/ECB_MEMORY_FENCE

[Marc Lehmann]

On Sat, Apr 13, 2013 at 02:29:00PM +0200, Matthias Moeller <ip1 at maxec.de> wrote:
> I'm getting some valgrind hits from libev-4.15. It's always with the
> ECB_MEMORY_FENCE macro. I've checked both AMD64 and i386, the hits
> occur on the i386 version only.
> 
> This memory fencing stuff is beyond my knowledge. Is this something
> to worry about?

No, this is just a (harmless) bug in valgrind, which apparently doesn't
recognise the lock prefix correctly, or somesuch.

It doesn't affect correctness inside and outside of valgrind.

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