From mboxrd@z Thu Jan 1 00:00:00 1970 From: christophe leroy Subject: Strange reports of perf events on powerpc 83xx Date: Sat, 29 Aug 2015 16:34:36 +0200 Message-ID: <55E1C2FC.4060506@c-s.fr> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from 2.236.17.93.rev.sfr.net ([93.17.236.2]:19297 "EHLO mailhub1.si.c-s.fr" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752528AbbH2PCQ convert rfc822-to-8bit (ORCPT ); Sat, 29 Aug 2015 11:02:16 -0400 Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id CCE141C8D6B for ; Sat, 29 Aug 2015 16:34:45 +0200 (CEST) Received: from mailhub1.si.c-s.fr ([192.168.12.234]) by localhost (mailhub1.c-s.fr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id qhcTG7QJ7tLZ for ; Sat, 29 Aug 2015 16:34:45 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id AF5A51C8C46 for ; Sat, 29 Aug 2015 16:34:45 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 94D21C73C5 for ; Sat, 29 Aug 2015 16:34:45 +0200 (CEST) Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id LvofcV7Mov0A for ; Sat, 29 Aug 2015 16:34:45 +0200 (CEST) Received: from [127.0.0.1] (unknown [192.168.232.15]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 4D839C73C4 for ; Sat, 29 Aug 2015 16:34:45 +0200 (CEST) Sender: linux-perf-users-owner@vger.kernel.org List-ID: To: linux-perf-users@vger.kernel.org Hi, Has anybody already used 'perf' tool on powerpc MPC83xx ? I have been succesfully using perf on MPC8xx, but on MPC83xx I get=20 something strange. perf record/report reports addresses on user stack, as if it was mixing= =20 up D accesses and I accesses. Any idea of what the problem can be ? # Samples: 8K of event 'cpu-clock' # Event count (approx.): 2196000000 # # Overhead Command Shared Object Symbol # ........ ............ ..................=20 =2E........................................... # 2.62% perf_reseau4 libpthread-2.18.so [.] __libc_send 2.56% perf_reseau4 [kernel.kallsyms] [k] __ip_make_skb 1.62% perf_reseau4 [kernel.kallsyms] [k] __ip_append_data.is= ra.39 1.55% perf_reseau4 [kernel.kallsyms] [k] ip_finish_output 1.33% perf_reseau4 [unknown] [k] 0x7ffffd94 1.33% perf_reseau4 [unknown] [k] 0x7ffffd95 1.28% perf_reseau4 [unknown] [k] 0x7ffffd97 1.26% perf_reseau4 [unknown] [k] 0x7ffffda3 1.24% perf_reseau4 [unknown] [k] 0x7ffffd98 1.22% perf_reseau4 [unknown] [k] 0x7ffffd92 1.22% perf_reseau4 [unknown] [k] 0x7ffffd9b 1.22% perf_reseau4 [unknown] [k] 0x7ffffdaa 1.21% perf_reseau4 [unknown] [k] 0x7ffffd96 1.18% perf_reseau4 [unknown] [k] 0x7ffffda7 1.17% perf_reseau4 [unknown] [k] 0x7ffffd8d 1.17% perf_reseau4 [unknown] [k] 0x7ffffd99 1.13% perf_reseau4 [unknown] [k] 0x7ffffd90 1.13% perf_reseau4 [unknown] [k] 0x7ffffda2 1.12% perf_reseau4 [kernel.kallsyms] [k] __local_bh_enable_i= p 1.12% perf_reseau4 [unknown] [k] 0x7ffffd9c 1.12% perf_reseau4 [unknown] [k] 0x7ffffd9e 1.10% perf_reseau4 [unknown] [k] 0x7ffffda0 1.08% perf_reseau4 [unknown] [k] 0x7ffffd9f 1.08% perf_reseau4 [unknown] [k] 0x7ffffda6 1.05% perf_reseau4 [unknown] [k] 0x7ffffda8 1.02% perf_reseau4 [unknown] [k] 0x7ffffd9a 1.01% perf_reseau4 [unknown] [k] 0x7ffffdb0 1.00% perf_reseau4 [unknown] [k] 0x7ffffd89 1.00% perf_reseau4 [unknown] [k] 0x7ffffd8b 1.00% perf_reseau4 [unknown] [k] 0x7ffffdac Christophe --- L'absence de virus dans ce courrier =C3=A9lectronique a =C3=A9t=C3=A9 v= =C3=A9rifi=C3=A9e par le logiciel antivirus Avast. https://www.avast.com/antivirus