From owner-freebsd-current Mon Jan 27 3:42:36 2003 Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8663E37B401; Mon, 27 Jan 2003 03:42:34 -0800 (PST) Received: from purple.the-7.net (purple.the-7.net [209.126.178.119]) by mx1.FreeBSD.org (Postfix) with ESMTP id B753D43E4A; Mon, 27 Jan 2003 03:42:29 -0800 (PST) (envelope-from ab@purple.the-7.net) Received: from purple.the-7.net (localhost [IPv6:::1]) by purple.the-7.net (8.12.6/8.12.6) with ESMTP id h0QMlCJ6005225; Sun, 26 Jan 2003 14:47:12 -0800 (PST) (envelope-from ab@purple.the-7.net) Received: (from ab@localhost) by purple.the-7.net (8.12.6/8.12.6/Submit) id h0QMlA7V005220; Sun, 26 Jan 2003 14:47:10 -0800 (PST) (envelope-from ab) Date: Sun, 26 Jan 2003 14:47:10 -0800 From: "Eugene M. Kim" To: Greg Lehey Cc: "Daniel O'Connor" , David Schultz , Nate Lawson , current@FreeBSD.ORG Subject: Re: I've just had a massive file system crash Message-ID: <20030126224710.GA4160@purple.the-7.net> References: <20030125070352.GA933@HAL9000.homeunix.com> <20030125213859.GB6339@HAL9000.homeunix.com> <1043553241.85148.191.camel@chowder.dons.net.au> <20030126080830.GE1606@sydney.worldwide.lemis.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="WYTEVAkct0FjGQmd" Content-Disposition: inline In-Reply-To: <20030126080830.GE1606@sydney.worldwide.lemis.com> User-Agent: Mutt/1.4i Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG --WYTEVAkct0FjGQmd Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Sun, Jan 26, 2003 at 04:08:31PM +0800, Greg Lehey wrote: > On Sunday, 26 January 2003 at 14:24:02 +1030, Daniel O'Connor wrote: > > On Sun, 2003-01-26 at 08:08, David Schultz wrote: > >> Good. I was referring to IDE in this case, because I assume > >> that's what Greg's laptop uses. The ATA driver flushes the cache > >> when the device is closed, but I don't think that happens during > >> shutdown. It probably needs to register a shutdown hook like the > >> SCSI driver. Also, the driver is a bit optimistic about how long > >> the flush will take; it times out after 5 seconds, whereas the ATA > >> spec says a flush can take up to 30 seconds. > > > > I am wondering if I experienced this problem with my -stable laptop.. > > > > I shut it down and then booted it up later to find fsck having a nice > > good chew on the drive (deleting REAMS of files). > > Did you use shutdown -p? If my hypothesis is correct, it's possible > to get this result with shutdown -h if you press the power switch as > soon as the "System halted" message appears, but normally you'd give > it a few seconds longer. With shutdown -p, it's immediate, modulo > delay. Just a random idea: If that poses an issue, how about this patch? Eugene --WYTEVAkct0FjGQmd Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename="patch-src::sys::kern::kern_shutdown.c" --- src/sys/kern_shutdown.c Sun Jan 26 14:24:56 2003 +++ src/sys/kern_shutdown.c.new Sun Jan 26 14:25:42 2003 @@ -545,7 +545,7 @@ static void poweroff_wait(void *junk, int howto) { - if(!(howto & RB_POWEROFF) || poweroff_delay <= 0) + if(!(howto & (RB_POWEROFF | RB_HALT)) || poweroff_delay <= 0) return; DELAY(poweroff_delay * 1000); } --WYTEVAkct0FjGQmd-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message