linux-kernel - Re: [PATCH 06/11] perf data: Switch to multiple cpu stream files

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Message-ID: <20150312123425.GF8369@krava.redhat.com>
Date:	Thu, 12 Mar 2015 13:34:25 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	Wang Nan <wangnan0@...wei.com>
Cc:	Jiri Olsa <jolsa@...nel.org>, linux-kernel@...r.kernel.org,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Jeremie Galarneau <jgalar@...icios.com>,
	Namhyung Kim <namhyung@...il.com>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Tom Zanussi <tzanussi@...il.com>
Subject: Re: [PATCH 06/11] perf data: Switch to multiple cpu stream files

On Thu, Mar 12, 2015 at 07:37:02PM +0800, Wang Nan wrote:
> Hi Jiri,
> 
> Have you noticed that this patch causes a endianess problem?
> 
> Without this patch:
> 
> $ perf  data convert --to-ctf ./out.ctf
> [ perf data convert: Converted 'perf.data' into CTF data './out.ctf' ]
> [ perf data convert: Converted and wrote 0.000 MB (11 samples) ]
> 
> With this patch:
> 
> $ perf  data convert --to-ctf ./out.ctf
> perf: event-types.c:1855: bt_ctf_field_type_set_native_byte_order: Assertion `byte_order == 1234 || byte_order == 4321' failed.
> Aborted
> 
> I'll look into this problem if you haven't solved it yet. Please let me know if you have already
> have some solutions.

hum, never seen this.. any other details? you moved perf.data
through different endian server or something like that?

jirka
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