Re: Module init call vs symbols exporting race?

From: Jon Masters
Date: Fri Nov 09 2007 - 07:09:31 EST



On Thu, 2007-11-08 at 13:10 +1100, Rusty Russell wrote:
> On Wednesday 07 November 2007 21:01:30 Jan Glauber wrote:
> > Hi Rusty,
> >
> > I've seen a symbol-resolving race on s390. The qeth module uses symbols
> > from qdio and although the loading order seems correct and the qdio
> > symbols should be available the following error appears:
> >
> > qdio: loading QDIO base support version 2
> > qeth: Unknown symbol qdio_synchronize
>
> Looks like qdio does something which triggers qeth to load, but of course qdio
> isn't finished initializing yet so its symbols aren't available.
>
> It's not obvious what's triggering the load, but you could probably find it by
> using printk's through qdio.c's init_QDIO().

Jan - did you get anything?

Jon.


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