From owner-freebsd-current@FreeBSD.ORG Thu Sep 12 18:24:02 2013 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 7CBF2FC1; Thu, 12 Sep 2013 18:24:02 +0000 (UTC) (envelope-from hiren.panchasara@gmail.com) Received: from mail-ea0-x22e.google.com (mail-ea0-x22e.google.com [IPv6:2a00:1450:4013:c01::22e]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id BF8B32771; Thu, 12 Sep 2013 18:24:01 +0000 (UTC) Received: by mail-ea0-f174.google.com with SMTP id z15so82614ead.19 for ; Thu, 12 Sep 2013 11:24:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=lVEE4Yl9yuNUliUsivMyIYLRUwJa4VUyWOZzIqJENfw=; b=EWraUsMj9zWaLvGVsPHZWFKmrl+bxtPuAx/Rw7D5t3HENwR2olxQixs/hEeVrS+7Pm luye+XSHRes1ZOGbMlApRF8ulsmPfHfbYtb0wSIQiCM1/tjAkXT2s9OjdQ0jcCuZP7XK 5buUgCmWq/4U3JWYhmY6Ada199zUdsgxUgYNXG5B0mj81klXGIMbagfX6atvXumpj+1z pULxHN+LQ4YfcCXaj2jL2v6ypvwpGi2jH1jF2SV3/sMOJD+RXhLsiDyGp/amWGxqGNUi 8OzZJckLyKSjf7HKCuQ/63ILyP0PBerAaa+eInPONSKZI2C0ZNQ6lCxPz2sGiZL3q1H2 2J4Q== MIME-Version: 1.0 X-Received: by 10.15.41.77 with SMTP id r53mr130462eev.64.1379010240262; Thu, 12 Sep 2013 11:24:00 -0700 (PDT) Received: by 10.14.105.137 with HTTP; Thu, 12 Sep 2013 11:24:00 -0700 (PDT) In-Reply-To: <20130912181711.GI4574@glebius.int.ru> References: <20130912092737.GC4574@FreeBSD.org> <20130912181711.GI4574@glebius.int.ru> Date: Thu, 12 Sep 2013 11:24:00 -0700 Message-ID: Subject: Re: Intermittent hangs in vmem_periodic() From: hiren panchasara To: Gleb Smirnoff , jeff@freebsd.org Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.14 Cc: freebsd-current X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Sep 2013 18:24:02 -0000 +jeff On Thu, Sep 12, 2013 at 11:17 AM, Gleb Smirnoff wrote: > On Thu, Sep 12, 2013 at 09:31:17AM -0700, hiren panchasara wrote: > h> > > h> PMC: [INSTR_RETIRED_ANY] Samples: 117647 (100.0%) , 6885 > unresolved > h> > > h> > h> > > h> %SAMP CALLTREE > h> > > h> 75.9 fork_exit@kernel taskqueue_thread_loop > taskqueue_run_locked > h> > > h> vmem_periodic(75.9%) > h> > > > h> > > You probably got DIAGNOSTIC in your kernel config. > h> > > h> > Yes. And I've always had that. Never been a problem before. What has > h> > changed? > h> > > h> > h> Thanks Gleb. > h> I've removed DIAGNOSTIC and the problem is gone now. > h> > h> But the way system was behaving with DIAGNOSTIC, its unusable. > > Please report that to Jeff. With DIAGNOSTIC the system can be slower, > more chatty on console, but should be usable. > Exactly. Thanks Gleb. Jeff: Not sure if you are subscribed to this list. http://lists.freebsd.org/pipermail/freebsd-current/2013-September/044487.html cheers, Hiren