On 12/06/06, Ingo Molnar <[email protected]> wrote:
* Pekka J Enberg <[email protected]> wrote:
> > > - arch/i386/kernel/setup.c:
> > > False positive because res pointer is stored in a global instance of
> > > struct resource.
> >
> > there's no good way around this one but to annotate it in one way or
> > another.
>
> Scanning bss and data sections is too expensive, I guess. I would
> prefer we create a separate section for gc roots but what you're
> suggesting is ok as well.
kmemleak does scan global data sections. I dont know why we dont
discover this particular pointer though: the resource pointer ought to
be accessible via the iomem_resource.parent/sibling/child sorted list.
Hm.
Maybe it only appeared in the initial versions of kmemleak due to bugs
in the tool and I never removed it. I'll check it again this evening
on my home machine (that's where I got it). However, if
request_resource() returns -EBUSY, that's a real leak.
--
Catalin
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