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

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Message-ID: <52A4AED8.3000506@gmail.com>
Date:	Sun, 08 Dec 2013 10:39:36 -0700
From:	David Ahern <dsahern@...il.com>
To:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Dongsheng Yang <yangds.fnst@...fujitsu.com>
CC:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf tools: Fix bug for perf kvm report without guestmount.

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

David
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