From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by dpdk.space (Postfix) with ESMTP id 0858FA0096 for ; Mon, 8 Apr 2019 15:47:39 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id CBD482C54; Mon, 8 Apr 2019 15:47:38 +0200 (CEST) Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by dpdk.org (Postfix) with ESMTP id 552B22B95 for ; Mon, 8 Apr 2019 15:47:37 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 08 Apr 2019 06:47:36 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,325,1549958400"; d="scan'208";a="289718913" Received: from aburakov-mobl1.ger.corp.intel.com (HELO [10.252.26.147]) ([10.252.26.147]) by orsmga004.jf.intel.com with ESMTP; 08 Apr 2019 06:47:34 -0700 To: "Mohamed Mahmoud (mmahmoud)" , "Jim Holland (jimholla)" , "dev@dpdk.org" Cc: "Min Tang (mtang2)" References: <839ef3df-c0d3-4705-f510-be517ef8d99f@intel.com> <59EFA01F-D0BA-4372-A8D1-DC438BE810D1@cisco.com> From: "Burakov, Anatoly" Message-ID: <10192495-2735-ada9-acf6-5586eaab6370@intel.com> Date: Mon, 8 Apr 2019 14:47:31 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <59EFA01F-D0BA-4372-A8D1-DC438BE810D1@cisco.com> Content-Type: text/plain; charset="UTF-8"; format="flowed" Content-Language: en-US Content-Transfer-Encoding: 8bit Subject: Re: [dpdk-dev] Secondary process crash in rte_eal_init X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Message-ID: <20190408134731.LKb4J8aJgpcoUqdThfRKlzMnFnBpLaerMOCnsHqWcag@z> On 08-Apr-19 2:07 PM, Mohamed Mahmoud (mmahmoud) wrote: > Hi Anatoly: > > For the secondary process all we are setting is the –proc-type set to > secondary, maybe point me to your test that might give me some clues, > also How I can generate detailed crash log ? > > When I checked the init code there are very few places that can cause > the panic > >   if(pipe(lcore_config[i].pipe_master2slave) < 0) > > rte_panic("Cannot create pipe\n"); > > if(pipe(lcore_config[i].pipe_slave2master) < 0) > > rte_panic("Cannot create pipe\n"); > >         lcore_config[i].state = WAIT; > > /* create a thread for each lcore */ > >         ret = pthread_create(&lcore_config[i].thread_id, NULL, > >                      eal_thread_loop, NULL); > > if(ret != 0) > > rte_panic("Cannot create thread\n"); Hi, That would be the most recent DPDK version. The issue i was responding to was for version 17.08, which has quite a bit more panic's in init code. In order for me to diagnose the issue i would have to at least know where the panic happens. That information is missing from both reports, so i cannot begin to imagine what went wrong, let alone why. > > Thanks, > > Mohamed > > *From: *"Burakov, Anatoly" > *Date: *Monday, April 8, 2019 at 4:42 AM > *To: *"Jim Holland (jimholla)" , "dev@dpdk.org" > > *Cc: *"Mohamed Mahmoud (mmahmoud)" , "Min Tang > (mtang2)" > *Subject: *Re: [dpdk-dev] Secondary process crash in rte_eal_init > > On 06-Apr-19 3:26 PM, Jim Holland (jimholla) wrote: > > Hi, > > We're seeing something similar to what is described in thread below. > Our product uses dpdk 17.08. Was there ever a resolution to Souvik's > issue? > > Thanks...Jim > > On 01/04/2015 06:00, Dey, Souvik wrote: > > Hi All, > >                    We have a single primary application with > multiple secondary applications launched on the same cpu core. > When the system boots up for the first time ,the primary comes > up followed by the secondary process everything works fine. But > in between if I try to restart the secondary processes without > restart the primary, the secondary process crashes with the > below stack trace. Any idea what is going wrong out here. > > ============================================ > > Stack Trace of the Crash : > > (gdb) bt > > #0 0x00007f4dad6e01b5 in raise () from /lib/libc.so.6 > > #1 0x00007f4dad6e2fc0 in abort () from /lib/libc.so.6 > > #2 0x0000000000402545 in __rte_panic () > > #3 0x00000000007353f4 in rte_eal_init () > > #4 0x0000000000403133 in main (argc=10, argv=0x7fff2c52fea8) > > ============================================ > > -- > > Regards, > > Souvik > > Hi Dey, > > Could you try to reproduce the issue with one of the multi-process > > examples from DPDK? > > Also you could provide some info such as command line options when > > running both primary/secondary apps, dpdk version, etc... > > Sergio > > The crash you are seeing is a panic, but i don't see *what* is > > panic'ing, so i cannot diagnose the issue from stack trace alone. > > In general, restarting secondary processes during primary's runtime is a > > supported case, and is indeed the basis for one of our unit tests > > (granted, most secondary process spinups in our unit tests are supposed > > to fail, but some will pass), and i have at various points done > > "secondary process spam" tests firing up tens of thousands of > > secondaries as well. So, crashes on secondary initialization with valid > > parameters is certainly not normal behavior. > > A more detailed crash log would be good to have. > > -- > > Thanks, > > Anatoly > -- Thanks, Anatoly