From owner-freebsd-questions@FreeBSD.ORG Tue Jul 15 16:36:01 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 55ED3106566C for ; Tue, 15 Jul 2008 16:36:01 +0000 (UTC) (envelope-from bahamasfranks@gmail.com) Received: from wf-out-1314.google.com (wf-out-1314.google.com [209.85.200.173]) by mx1.freebsd.org (Postfix) with ESMTP id 24D388FC14 for ; Tue, 15 Jul 2008 16:36:01 +0000 (UTC) (envelope-from bahamasfranks@gmail.com) Received: by wf-out-1314.google.com with SMTP id 24so4351872wfg.7 for ; Tue, 15 Jul 2008 09:36:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:reply-to :sender:to:subject:cc:in-reply-to:mime-version:content-type :content-transfer-encoding:content-disposition:references :x-google-sender-auth; bh=Aa1UenJnVJLXODYNrrQErDNK5u5i0XEGaA7i2pSmpwM=; b=wZTEk8+dAQIOUrUhtq/YC+Qm02UWuF/x+DAP/4Kxcn1Gnrbk79FX/rb6T09tvEzTG1 J+NV1QLLvuVQQiOtfAw0ilIGC5M78GTaarUZn/IGu2SyVG8rzaWUd+RMKjGQ07V5lTQc pyoexyQ/fiQ2hPxtyCoKSu1jEkAUpBrlo9ahE= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:reply-to:sender:to:subject:cc:in-reply-to :mime-version:content-type:content-transfer-encoding :content-disposition:references:x-google-sender-auth; b=RkYxwSKpeuVMM/a5HYuovLnO59q/M//o/OF8l+lFJ11Uc80/9tn7PUIJqLgVG4x5+O wjJrZ5T+AgCQ9BY1r8XFwoOFqM3T8cjL25U7cEsn2S9ozIceINuiL/KRCgozbgGf5LxO PSDpUdduSoFquKLEQrmmg3HqHUZ0Cb9mvYWZM= Received: by 10.142.239.13 with SMTP id m13mr4737591wfh.298.1216139760755; Tue, 15 Jul 2008 09:36:00 -0700 (PDT) Received: by 10.142.162.8 with HTTP; Tue, 15 Jul 2008 09:36:00 -0700 (PDT) Message-ID: <539c60b90807150936x458a41c6xe0f9d1a4b71ad116@mail.gmail.com> Date: Tue, 15 Jul 2008 09:36:00 -0700 From: "Steve Franks" Sender: bahamasfranks@gmail.com To: "Wojciech Puchar" In-Reply-To: <20080715072456.T1638@wojtek.tensor.gdynia.pl> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <539c60b90807142030u506394e7jdcdedd965ec16706@mail.gmail.com> <20080715072456.T1638@wojtek.tensor.gdynia.pl> X-Google-Sender-Auth: 69b77fb51a24cbbf Cc: FreeBSD Mailing List Subject: Re: OT-ish: fedora->crash->single user fsck; FreeBSD->crash->smooth recovery X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: stevefranks@ieee.org List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 15 Jul 2008 16:36:01 -0000 >> Ok, I'll quit ranting and actually ask a question: The real big thing >> that suprised me (about Fedora), is that every damn time it crashes, I >> have to sit through 20 minutes of fsck when it boots, then it cries, >> gags, and throws me into a root console to run fsck again, manually, >> for 20 more minutes. I'm thinking about symlinking fsck to a rather >> dirtier word on the Fedora box. > > yes it is normal. > > linux filesystem works like in -o async mode, is just caches what it have to > write and write whenever it likes at whatever sequence. > > in linux it is always presented as feature not bug. > > > another very stupid thing is TOO delayed writes, i mean linux simply caches > things as long as there are free memory then just starts lots of writes at > once efectively halting the system for a while. > Ok, so you are saying the write caching is radically different on FreeBSD than what I know of Win/Lin? Or is the timeout to flush just some really small period like 100mS? Steve