From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-2598244-1517838990-2-3551633124950294936 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.001, RCVD_IN_DNSWL_NONE -0.0001, LANGUAGES en, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='96.67.55.147', Host='shelob.surriel.com', Country='US', FromHeader='org', MailFrom='org' X-Spam-charsets: plain='us-ascii' X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: kernelnewbies-bounces+greg=kroah.com@kernelnewbies.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1517838989; b=d9vZLbKPqrrbeSVsXOcZZBH4pvVP8eCMQr6RWff0klgzQre Ao/N0UMcpNgqeXhneEro8/DC472gOA33XBJ5ClbnhQNz764PjRBqI0QEZ+3hMH+7 IK4ufxpLjXdl34RjNfTVHSw4gMdP5/8aRZ0fmlFjH8t7IBqfCiDnuVH9UBERxeag x0S9Ak2oamg8AwaC+qW37jQTrpfseRQOgU1ivZplaN/MYmxZHhTiaAw+I+PxNS4H 0qfuZwBqJ4TvQ2lzx18lZ6oUq13DNtam6SEHLsXoIyzM50ZaGl8lDTm0jpLQoNRN jz1ksPQA0xZnvuueySzAIG4Vg2yOk97C9wbN5fg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=date:from:to:subject:message-id :in-reply-to:references:mime-version:cc:list-id:list-unsubscribe :list-archive:list-post:list-help:list-subscribe:content-type :content-transfer-encoding; s=arctest; t=1517838989; bh=cVsTvlbn Qno1Mr1a3b3QC3U1P6vz3Jk9vzeslJ69B2I=; b=RuWRKHXVLqOJcGVBn3GYkog7 4x35unzRcVxRKNwlhsQ2JylvGdrHyk5KMDfV3SBjLUxFo3Ye1X8hSjysgTdqWIfO wo6lpIPf5jQn1RWYq9wVQFTnILCqRhzZbD4Uvb+ZLjcnqom75V1foAziRdhSlBiQ KB1wgptaJFXukaOEc8zW9DCDznvskrU6NMTspmgp5RnXYzM4H1jblFsOHV5cuFt+ 49j+YmqK/+BZnlQrtvIpEuRrRZdqdqUJmfILr0yKdgYj8g6bMoiKbuq8+PGaWbQo 3aWIBJH5vWXghAJjkNqETXc7vtinuUY01zd06hJxV8VVTy/DTcgctl6Mt9sBCA== ARC-Authentication-Results: i=1; mx2.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=kernel.org; iprev=pass policy.iprev=96.67.55.147 (shelob.surriel.com); spf=permerror smtp.mailfrom=kernelnewbies-bounces+greg=kroah.com@kernelnewbies.org smtp.helo=shelob.surriel.com; x-aligned-from=fail; x-ptr=pass x-ptr-helo=shelob.surriel.com x-ptr-lookup=shelob.surriel.com; x-return-mx=pass smtp.domain=kernelnewbies.org smtp.result=pass smtp_is_org_domain=yes header.domain=kernel.org header.result=pass header_is_org_domain=yes; x-tls=pass version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128 Authentication-Results: mx2.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=kernel.org; iprev=pass policy.iprev=96.67.55.147 (shelob.surriel.com); spf=permerror smtp.mailfrom=kernelnewbies-bounces+greg=kroah.com@kernelnewbies.org smtp.helo=shelob.surriel.com; x-aligned-from=fail; x-ptr=pass x-ptr-helo=shelob.surriel.com x-ptr-lookup=shelob.surriel.com; x-return-mx=pass smtp.domain=kernelnewbies.org smtp.result=pass smtp_is_org_domain=yes header.domain=kernel.org header.result=pass header_is_org_domain=yes; x-tls=pass version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128 DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BD3DF21734 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=mhiramat@kernel.org Date: Mon, 5 Feb 2018 22:54:02 +0900 From: Masami Hiramatsu To: Pintu Kumar Subject: Re: [perf] perf test BPF fails on 4.9.20 Message-Id: <20180205225402.f0b2448650763bc5cb8099a8@kernel.org> In-Reply-To: References: <20180203221935.bd3036aba7637a4de391a20e@kernel.org> X-Mailer: Sylpheed 3.5.1 (GTK+ 2.24.31; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Cc: "Wangnan \(F\)" , Alexis Berlemont , daniel@iogearbox.net, kernelnewbies@kernelnewbies.org, alexander.shishkin@linux.intel.com, linux-kernel@vger.kernel.org, acme@redhat.com, peterz@infradead.org, mingo@redhat.com, huawei.libin@huawei.com, naveen.n.rao@linux.vnet.ibm.com, quentin.monnet@netronome.com, maddy@linux.vnet.ibm.com, davem@davemloft.net X-BeenThere: kernelnewbies@kernelnewbies.org X-Mailman-Version: 2.1.15 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kernelnewbies-bounces+greg=kroah.com@kernelnewbies.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: On Mon, 5 Feb 2018 15:17:41 +0530 Pintu Kumar wrote: > On Sat, Feb 3, 2018 at 6:49 PM, Masami Hiramatsu wrote: > > Hi Pintu, > > > > On Fri, 2 Feb 2018 19:03:30 +0530 > > Pintu Kumar wrote: > > > >> Hi All, > >> > >> I have fixed both the issue with perf test. > >> > >> 1) 16: Try 'import perf' in python, checking link problems : FAILED! > >> To fix this issue, I have to install: > >> pip install --upgrade pip > >> pip2.7 install perf > >> > >> 2) 37.2: Test BPF prologue generation : FAILED! > >> To fix this issue I had to enable full version of CONFIG_DEBUG_INFO in kernel. > >> > >> Now, my question is: > >> Is it possible to pass BPF test without enabling CONFIG_DEBUG_INFO in kernel ? > > > > It depends on what BPF test does, but it seems to access local vars. This means > > you need to enable CONFIG_DEBUG_INFO. With debuginfo we can find the assignment > > of register/stack for each local variable. > > > > OK. Thank you so much for your reply. > I think we don't need BPF test at this time. > Is it possible to disable/skip it ? It depends on what you want to do with perf. If you don't use BPF, yes, you can skip it :) Thank you, -- Masami Hiramatsu _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies