linux-kernel - Re: [PATCH] perf tools: Fix bug for perf kvm report without guestmount.

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Message-ID: <20131209180705.GB8098@ghostprotocols.net>
Date:	Mon, 9 Dec 2013 15:07:05 -0300
From:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
To:	David Ahern <dsahern@...il.com>
Cc:	Dongsheng Yang <yangds.fnst@...fujitsu.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf tools: Fix bug for perf kvm report without
 guestmount.

Em Sun, Dec 08, 2013 at 10:39:36AM -0700, David Ahern escreveu:
> On 12/6/13, 4:56 AM, Arnaldo Carvalho de Melo wrote:
> >You get correct results because the modules/kallsyms info you provided
> >matches the VM you're testing, i.e. the pid test is not needed.
> >
> >I think we need to specify for which PID the --guestmodules and
> >--guestkallsyms is provided, so that it can refuse to use it for pids
> >where it is invalid.
> 
> Those are arguments are shortcut defaults for guests. If the VMs are
> not running the same kernel use guestmount and pid specific
> directories. e.g.,
> 
> /tmp/guestmount/<pid>/proc/kallsyms

Does this already works like that? /me tries to figure that out...

- Arnaldo
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