Date: Sat, 23 Jan 1999 21:50:35 -0800 From: Mike Smith <mike@smith.net.au> To: "D. Rock" <rock@wurzelausix.CS.Uni-SB.DE> Cc: current@FreeBSD.ORG Subject: Re: dirty fs after apm power off Message-ID: <199901240550.VAA00672@dingo.cdrom.com> In-Reply-To: Your message of "Sat, 23 Jan 1999 22:44:31 %2B0100." <199901232144.WAA10840@wurzelausix.cs.uni-sb.de>
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> I have noticed this behaviour on at least one machine. > If I shutdown the machine with apm power off, the filesystem is dirty and > has to been checked on the next reboot. It seems, the power is cut too fast. > I don't have any problems with reboots. > It seems the drive doesn't have the time to write the superblock back to disk. > > I simply put a DELAY(4000000) in the apm_power_off() routine and the problem > fades away. > Any thoughts on doing this a configurable option? It doesn't break anything, > it only takes a few seconds longer for the machine to power off. > > The drive is a Maxtor Diamond Max (90432D2) 4GB IDE drive in an Asus SP98 > board. Ok, simple programming project for you. Find a suitable location, and add a SYSCTL node (eg. kern.shutdown.poweroff_delay) and SYSINIT to register an at_shutdown function that delays that long just before the power-off routines are called. Test it, file a PR and gimme the PR number. -- \\ Sometimes you're ahead, \\ Mike Smith \\ sometimes you're behind. \\ mike@smith.net.au \\ The race is long, and in the \\ msmith@freebsd.org \\ end it's only with yourself. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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