From owner-freebsd-stable@FreeBSD.ORG Thu Sep 12 20:10:27 2013 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 0FFC2814 for ; Thu, 12 Sep 2013 20:10:27 +0000 (UTC) (envelope-from olgeni@olgeni.com) Received: from olgeni.olgeni.com (host-156-246-171-31.cloudsigma.com [31.171.246.156]) by mx1.freebsd.org (Postfix) with ESMTP id C95E723F0 for ; Thu, 12 Sep 2013 20:10:25 +0000 (UTC) Received: from olgeni.olgeni (unknown [82.84.82.178]) by olgeni.olgeni.com (Postfix) with ESMTPSA id 6AFB717449C; Thu, 12 Sep 2013 22:10:24 +0200 (CEST) Date: Thu, 12 Sep 2013 22:10:23 +0200 (CEST) From: Jimmy Olgeni X-X-Sender: olgeni@olgeni.olgeni To: Konstantin Belousov Subject: Re: Possible kqueue related issue on STABLE/RC. In-Reply-To: <20130912184900.GD41229@kib.kiev.ua> Message-ID: References: <20130911171913.GG41229@kib.kiev.ua> <20130912073643.GM41229@kib.kiev.ua> <20130912184900.GD41229@kib.kiev.ua> User-Agent: Alpine 2.00 (BSF 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: freebsd-stable@freebsd.org X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Sep 2013 20:10:27 -0000 On Thu, 12 Sep 2013, Konstantin Belousov wrote: >> This certainly seems to improve things. I have been running builds >> for the past couple of hours without any critical problem. > Ok, so it is ZFS indeed. I think I will commit the band-aid to head > shortly. Thank you! >> I spotted a few LORs but nothing bad happened so far: >> >> http://olgeni.olgeni.com/~olgeni/dmesg-2013-09-12 > Out of curiousity, please look up the line for vm_object_terminate+0x1d8. Here it is, VM_OBJECT_UNLOCK: (kgdb) list *vm_object_terminate+0x1d8 0xffffffff80b5cc58 is in vm_object_terminate (/usr/src/sys/vm/vm_object.c:767). 762 763 /* 764 * Let the pager know object is dead. 765 */ 766 vm_pager_deallocate(object); 767 VM_OBJECT_UNLOCK(object); 768 769 vm_object_destroy(object); 770 } 771 -- jimmy