From: David Ahern <dsahern@gmail.com>
To: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Ingo Molnar <mingo@kernel.org>, Paul Mackerras <paulus@samba.org>,
Namhyung Kim <namhyung.kim@lge.com>,
LKML <linux-kernel@vger.kernel.org>, Jiri Olsa <jolsa@redhat.com>,
Adrian Hunter <adrian.hunter@intel.com>
Subject: Re: [PATCH 1/3] perf tools: Allow vmlinux to fallback to kallsyms on NO_LIBELF=1
Date: Mon, 10 Nov 2014 07:20:35 -0700 [thread overview]
Message-ID: <5460C9B3.4060705@gmail.com> (raw)
In-Reply-To: <87a93zv6yi.fsf@sejong.aot.lge.com>
On 11/10/14, 12:40 AM, Namhyung Kim wrote:
> Hi David,
>
> On Fri, 07 Nov 2014 08:21:16 -0700, David Ahern wrote:
>> On 11/6/14, 10:20 PM, Namhyung Kim wrote:
>>> It worked w/o libelf, but recent change to use vmlinux for kernel
>>> symbols break it.
>>
>> Do you know the recent change (commit id) that broke it?
>
> Nope. I tried to find it but failed - older versions seems also have
> the problem and some of them could not run perf record. Anyway it looks
> like depending some external condition and broken for a while. :(
OK. I have a segfault issue when analyzing a mips file offbox and it is
related to kernel symbol processing. I was not able to find past version
of perf that worked - though limited by the file version checks added
around v3.6.
David
next prev parent reply other threads:[~2014-11-10 14:20 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-07 5:20 [PATCH 1/3] perf tools: Allow vmlinux to fallback to kallsyms on NO_LIBELF=1 Namhyung Kim
2014-11-07 5:20 ` [PATCH 2/3] perf symbol: Implement a very simple ELF symbol parser Namhyung Kim
2014-11-07 15:26 ` Arnaldo Carvalho de Melo
2014-11-10 6:36 ` Namhyung Kim
2014-11-10 12:09 ` Arnaldo Carvalho de Melo
2014-11-17 2:31 ` Namhyung Kim
2014-11-07 5:20 ` [PATCH 3/3] perf tools: Clean up libelf feature support code Namhyung Kim
2014-11-20 7:36 ` [tip:perf/core] " tip-bot for Namhyung Kim
2014-11-07 8:27 ` [PATCH 1/3] perf tools: Allow vmlinux to fallback to kallsyms on NO_LIBELF=1 Peter Zijlstra
2014-11-07 14:57 ` Namhyung Kim
2014-11-07 17:37 ` Peter Zijlstra
2014-11-10 6:33 ` Namhyung Kim
2014-11-10 12:11 ` Peter Zijlstra
2014-11-11 4:24 ` Namhyung Kim
2014-11-11 10:27 ` Peter Zijlstra
2014-11-11 13:03 ` Arnaldo Carvalho de Melo
2014-11-11 14:02 ` Arnaldo Carvalho de Melo
2014-11-11 17:19 ` Peter Zijlstra
2014-11-20 7:37 ` [tip:perf/core] perf symbols: Fallback to kallsyms when using the minimal 'ELF' loader tip-bot for Arnaldo Carvalho de Melo
2014-11-11 13:02 ` [PATCH 1/3] perf tools: Allow vmlinux to fallback to kallsyms on NO_LIBELF=1 Arnaldo Carvalho de Melo
2014-11-17 1:55 ` Namhyung Kim
2014-11-07 15:21 ` David Ahern
2014-11-10 7:40 ` Namhyung Kim
2014-11-10 14:20 ` David Ahern [this message]
2014-11-07 15:29 ` Arnaldo Carvalho de Melo
2014-11-10 6:53 ` Namhyung Kim
2014-11-10 12:11 ` Arnaldo Carvalho de Melo
2014-11-17 2:04 ` Namhyung Kim
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