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

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Date:	Mon, 09 Dec 2013 11:08:05 -0700
From:	David Ahern <dsahern@...il.com>
To:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
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.

On 12/9/13, 11:07 AM, Arnaldo Carvalho de Melo wrote:
> 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...

yes.


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