linux-kernel - Re: [PATCH V2 1/9] perf tools: Fix symbol annotation for relocated kernel

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Message-ID: <20140130180823.GA8098@ghostprotocols.net>
Date:	Thu, 30 Jan 2014 15:08:23 -0300
From:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	Adrian Hunter <adrian.hunter@...el.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org,
	David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Jiri Olsa <jolsa@...hat.com>, Mike Galbraith <efault@....de>,
	Namhyung Kim <namhyung@...il.com>,
	Paul Mackerras <paulus@...ba.org>,
	Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH V2 1/9] perf tools: Fix symbol annotation for relocated
 kernel

Em Thu, Jan 30, 2014 at 10:20:36AM +0100, Ingo Molnar escreveu:
> Ok, cool, thanks!
> 
> I'd suggest the whole fix series if perf/urgent material.

Getting segfaults with:

[acme@...andy linux]$ git log --oneline | head -10
c059c953531f perf tests: vmlinux-kallsyms test does not need to set up ref_reloc_sym
be2530836ebe perf symbols: Prevent the use of kcore if the kernel has moved
9b2fd7840cb0 perf record: Get ref_reloc_sym from kernel map
bcf5e06a0c75 perf symbols: Add kallsyms__get_function_start()
94591ed0963e perf machine: Add machine__get_kallsyms_filename()
18923cddb839 perf symbols: Fix symbol annotation for relocated kernel
f428ebd184c8 perf tools: Fix AAAAARGH64 memory barriers
950b8354716e perf tools: Demangle kernel and kernel module symbols too
0d4dd797564c perf/doc: Remove mention of non-existent set_perf_event_pending() from design.txt
993e5ee67a90 Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
[acme@...andy linux]$ 

[acme@...andy linux]$ perf record usleep 1
Segmentation fault (core dumped)
[acme@...andy linux]$ uname -a
Linux ssdandy 3.12.0-rc6+ #2 SMP Mon Oct 21 11:19:07 BRT 2013 x86_64 x86_64 x86_64 GNU/Linux
[acme@...andy linux]$ cat /etc/fedora-release 
Fedora release 18 (Spherical Cow)
[acme@...andy linux]$ 

- Arnaldo
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