Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753689Ab2JEISP (ORCPT ); Fri, 5 Oct 2012 04:18:15 -0400 Received: from mail-we0-f174.google.com ([74.125.82.174]:40219 "EHLO mail-we0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753595Ab2JEISL (ORCPT ); Fri, 5 Oct 2012 04:18:11 -0400 Date: Fri, 5 Oct 2012 10:18:04 +0200 From: Ingo Molnar To: Arnaldo Carvalho de Melo Cc: linux-kernel@vger.kernel.org, Arun Sharma , Corey Ashford , David Ahern , Dong Hao , Frederic Weisbecker , Irina Tirdea , Irina Tirdea , Jiri Olsa , Mike Galbraith , Namhyung Kim , Namhyung Kim , Paul Mackerras , Peter Zijlstra , Runzhen Wang , Stephane Eranian , Xiao Guangrong , arnaldo.melo@gmail.com, Arnaldo Carvalho de Melo Subject: Re: [GIT PULL 00/42] perf/core improvements and fixes Message-ID: <20121005081804.GA685@gmail.com> References: <1349374122-27806-1-git-send-email-acme@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1349374122-27806-1-git-send-email-acme@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2366 Lines: 72 * Arnaldo Carvalho de Melo wrote: > Hi Ingo, > > Please consider pulling, > > - Arnaldo > > The following changes since commit 29a0fc9b2b6084e7a8810481df62a0fa496d8957: > > perf tools: Convert to LIBELF_SUPPORT (2012-09-28 21:07:36 -0300) > > are available in the git repository at: > > git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux tags/perf-core-for-mingo > > for you to fetch changes up to 139c0815903de1a7865fe1d6beac5e995fefdf46: > > perf hists: Add more helpers for hist entry stat (2012-10-04 13:36:18 -0300) Pulled, thanks Arnaldo. Note that the old dependency related build failure thought to be fixed in commit 860df5833e46 is back: make[1]: *** No rule to make target `/usr/lib/gcc/x86_64-redhat-linux/4.7.0/include/stddef.h', needed by `.trace-seq.d'. Stop. 'make clean' itself does not work in libtraceevent: comet:~/tip/tools/lib/traceevent> make clean make: *** No rule to make target `/usr/lib/gcc/x86_64-redhat-linux/4.7.0/include/stddef.h', needed by `.trace-seq.d'. Stop. So I had to clean it out manually: comet:~/tip/tools/lib/traceevent> git ls-files --others | xargs rm comet:~/tip/tools/lib/traceevent> and then things build fine. I also noticed a 'perf trace' bug, after running 'perf trace' it outputs lines but then gets hung: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 6081 mingo 20 0 18.2g 14g 3544 D 18.6 91.2 0:20.28 perf and then after half a minute it gets active again, outputting lines and then segfaulting: LOST 1 events! 31082 ) = 375 31082 write(fd: 3, buf: 140030569454096, count: 48LOST 1 events! 31082 select(n: 13, inp: 140030569376688, outp: 140030569376656, exp: 0, tvp: 031082 ) = 2 Segmentation fault It's a 16-way box running: Linux comet 3.5.4-1.fc17.x86_64 #1 SMP Mon Sep 17 15:03:59 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux Note how much the RSS is, 14 GB of RAM with less of 1 minute running. The segfault might be related to a failed allocation not being handled correctly perhaps. Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/