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From: Francis Moreau <francis.moro@gmail.com>
To: linux-perf-users@vger.kernel.org
Subject: perf-probe: issue with latest fedora kernel
Date: Thu, 09 Dec 2010 16:00:08 +0100	[thread overview]
Message-ID: <m2pqtb9ekn.fsf@gmail.com> (raw)

Hello,

I'm trying to use perf-probe(1) with the latest F14 kernel
(2.6.35.9-64.fc14.x86_64).

I also installed kernel-debug-debuginfo-2.6.35.9-64.fc14.x86_64 which
contains the running vmlinux image AFAICT.

I added it to the buildid cache:

$ perf buildid-cache -v -a /usr/lib/debug/lib/modules/2.6.35.9-64.fc14.x86_64.debug/vmlinux
Adding 4d89e23415d8ab491cfc8ef8aa67764b91cc6787 /usr/lib/debug/lib/modules/2.6.35.9-64.fc14.x86_64.debug/vmlinux: OK

But when running perf-probe(1) like the following:

  $ perf probe schedule cpu
  Failed to find path of kernel moduleFailed to open debuginfo file.
  Error: Failed to add events. (-2)

it fails.

One strange thing is that when perf read the running kernel build id, it
get: 882b1b53eb1d65320e8fa710273aa8493896c4.

Could anybody tell me what I'm doing wrong ?

Thanks
-- 
Francis

             reply	other threads:[~2010-12-09 15:00 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-09 15:00 Francis Moreau [this message]
2010-12-09 15:35 ` perf-probe: issue with latest fedora kernel Arnaldo Carvalho de Melo
2010-12-09 16:34   ` Francis Moreau
2010-12-10  3:27     ` Masami Hiramatsu
2010-12-10  7:53       ` Franck Bui-Huu
2010-12-10  8:26         ` Masami Hiramatsu
2010-12-10 13:00           ` Franck Bui-Huu
2010-12-10 13:06             ` [PATCH 1/2] perf-probe: do use the kernel image path given by 'k' option Franck Bui-Huu
2010-12-10 13:07             ` [PATCH 2/2] perf-probe: fail if the kernel image contains no symbol Franck Bui-Huu
2010-12-10  7:30   ` perf-probe: issue with latest fedora kernel Franck Bui-Huu
2010-12-12 14:08     ` Arnaldo Carvalho de Melo
2010-12-12 22:15       ` Franck Bui-Huu
2010-12-13 16:40         ` Arnaldo Carvalho de Melo
2010-12-13 10:02   ` Francis Moreau
2010-12-13 12:58     ` Arnaldo Carvalho de Melo
2010-12-13 13:08       ` Francis Moreau
2010-12-13 14:04         ` Masami Hiramatsu
2010-12-13 14:16           ` Francis Moreau
2010-12-13 19:08             ` Francis Moreau
2010-12-13 14:25           ` Arnaldo Carvalho de Melo
2010-12-13 14:21         ` Arnaldo Carvalho de Melo
2010-12-13 15:11           ` Francis Moreau
2010-12-13 16:40             ` Arnaldo Carvalho de Melo
2010-12-13 19:08               ` Francis Moreau
2010-12-13 19:17                 ` Arnaldo Carvalho de Melo
2010-12-13 19:32                   ` Francis Moreau
2010-12-15  8:57           ` Masami Hiramatsu
2010-12-15 18:53             ` Arnaldo Carvalho de Melo
2010-12-23 13:59             ` Franck Bui-Huu
2010-12-27 20:50               ` Franck Bui-Huu

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