linux-kernel - Re: [PATCH v3] perf tools: Add symfs option for off-box analysis using specified tree

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Date:	Tue, 14 Dec 2010 12:39:29 -0200
From:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
To:	"David S. Ahern" <daahern@...co.com>
Cc:	linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] perf tools: Add symfs option for off-box analysis
 using specified tree

Em Tue, Dec 14, 2010 at 07:33:27AM -0700, David S. Ahern escreveu:
> On 12/14/10 07:06, Arnaldo Carvalho de Melo wrote:
> > Em Tue, Dec 14, 2010 at 10:52:45AM -0200, Arnaldo Carvalho de Melo escreveu:
> >> Ok, there are still some problems:

> >> It is escaping the symfs jail for /home/acme/bin/perf, /lib64/libpthread-2.5.so
> >> and kernel modules, investigating...

> > Those 'G' signals means DSO__ORIG_GUEST_KMODULE, since you were not
> > prefixing that case with symfs, it was the jail leak point, fixed, doing
> > some more testing before merging.

> yuk. I did not touch the hypervisor paths.

> So the 'guest' route is tried all the time because of the origin list --
> even when it's not applicable.

Right, I don't like the way kvm is supported, will revisit this at some
point.

If build-ids were first class citizens, all this would be moot :-\

- Arnaldo
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