From owner-freebsd-stable@freebsd.org Mon Sep 5 07:43:52 2016 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 9C4D8B71783 for ; Mon, 5 Sep 2016 07:43:52 +0000 (UTC) (envelope-from slw@zxy.spb.ru) Received: from zxy.spb.ru (zxy.spb.ru [195.70.199.98]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 51BDC1D0 for ; Mon, 5 Sep 2016 07:43:52 +0000 (UTC) (envelope-from slw@zxy.spb.ru) Received: from slw by zxy.spb.ru with local (Exim 4.86 (FreeBSD)) (envelope-from ) id 1bgoZI-0000id-BX; Mon, 05 Sep 2016 10:43:48 +0300 Date: Mon, 5 Sep 2016 10:43:48 +0300 From: Slawa Olhovchenkov To: hiren panchasara Cc: freebsd-stable@FreeBSD.org Subject: Re: 11.0 stuck on high network load Message-ID: <20160905074348.GE34394@zxy.spb.ru> References: <20160904215739.GC22212@zxy.spb.ru> <20160905014612.GA42393@strugglingcoder.info> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160905014612.GA42393@strugglingcoder.info> User-Agent: Mutt/1.5.24 (2015-08-30) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: slw@zxy.spb.ru X-SA-Exim-Scanned: No (on zxy.spb.ru); SAEximRunCond expanded to false X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 05 Sep 2016 07:43:52 -0000 On Sun, Sep 04, 2016 at 06:46:12PM -0700, hiren panchasara wrote: > On 09/05/16 at 12:57P, Slawa Olhovchenkov wrote: > > I am try using 11.0 on Dual E5-2620 (no X2APIC). > > Under high network load and may be addtional conditional system go to > > unresponsible state -- no reaction to network and console (USB IPMI > > emulation). INVARIANTS give to high overhad. Is this exist some way to > > debug this? > > Can you panic it from console to get to db> to get backtrace and other > info when it goes unresponsive? no no reaction > Cheers, > Hiren