Advice on a multithreaded netisr patch?

Barney Cordoba barney_cordoba at
Tue Apr 7 16:01:51 PDT 2009

--- On Tue, 4/7/09, Robert Watson <rwatson at> wrote:

> From: Robert Watson <rwatson at>
> Subject: Re: Advice on a multithreaded netisr  patch?
> To: "Barney Cordoba" <barney_cordoba at>
> Cc: freebsd-net at, "Ivan Voras" <ivoras at>
> Date: Tuesday, April 7, 2009, 6:52 PM
> On Tue, 7 Apr 2009, Barney Cordoba wrote:
> >>> When I enabled LOCK_PROFILING my side modules,
> such as
> >> if_ibg, stopped working. It seems that the ifnet
> structure or something changed with that option enabled. Is
> there a way to sync this without having to integrate
> everything into a specific kernel build?
> >> 
> >> LOCK_PROFILING changes the size of lock-related
> data structures, so requires both kernel and full set of
> modules to be rebuilt with the option.
> > 
> > It might be good to mention this in the man page. Most
> 3rd party drivers build stand-alone, and even if you pull
> down the latest drivers from intel or broadcom they're
> usually built out of the kernel build. Its pretty
> frustrating to have random things failing, mbuf leaks, etc
> without any warning.
> From the man page:
>      The LOCK_PROFILING option increases the size of struct
> lock_object, so a
>      kernel built with that option will not work with
> modules built without
>      it

Nevermind. Obviously I just plain missed it.



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