From owner-freebsd-questions@FreeBSD.ORG Thu Oct 9 03:54:29 2014 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id AD185519 for ; Thu, 9 Oct 2014 03:54:29 +0000 (UTC) Received: from mail.magehandbook.com (173-8-4-45-WashingtonDC.hfc.comcastbusiness.net [173.8.4.45]) by mx1.freebsd.org (Postfix) with ESMTP id 85CE1B84 for ; Thu, 9 Oct 2014 03:54:28 +0000 (UTC) Received: from [192.168.1.50] (Mac-Pro.magehandbook.com [192.168.1.50]) by mail.magehandbook.com (Postfix) with ESMTP id 3jCz1L0xzBzbH for ; Wed, 8 Oct 2014 23:49:10 -0400 (EDT) Date: Wed, 08 Oct 2014 23:49:09 -0400 From: Daniel Staal Reply-To: FreeBSD Questions To: freebsd-questions@freebsd.org Subject: Re: Next Steps to Debug ZFS Hang? Message-ID: In-Reply-To: <1412732931033.813626ca@Nodemailer> References: <1412732931033.813626ca@Nodemailer> X-Mailer: Mulberry/4.0.8 (Mac OS X) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 09 Oct 2014 03:54:29 -0000 --As of October 7, 2014 6:48:51 PM -0700, Nick Sivo is alleged to have said: > I've been having trouble with ZFS on my server. For the most part it > works splendidly, but occasionally I'll experience permanent hangs. > > > For example, right now on one of my ZFS filesystems (the others are > fine), I can read, write, and stat files, but if I run ls in any > directory, ls and the terminal will hang. CTRL-C, and kill -9 can't kill > it: --As for the rest, it is mine. Not sure if this will be helpful, but at least it shouldn't hurt: When was the last time you ran a scrub? Also, how much RAM do you have and where is your swap? (The only times I've had permanent hangs from ZFS was when I ran out of RAM and was trying to swap to ZFS...) Daniel T. Staal --------------------------------------------------------------- This email copyright the author. Unless otherwise noted, you are expressly allowed to retransmit, quote, or otherwise use the contents for non-commercial purposes. This copyright will expire 5 years after the author's death, or in 30 years, whichever is longer, unless such a period is in excess of local copyright law. ---------------------------------------------------------------