Date: Mon, 06 Dec 1999 21:54:41 -0800 From: Mike Smith <msmith@freebsd.org> To: Julian Elischer <julian@whistle.com> Cc: Mike Smith <msmith@FreeBSD.org>, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/kern kern_shutdown.c Message-ID: <199912070554.VAA00398@mass.cdrom.com> In-Reply-To: Your message of "Mon, 06 Dec 1999 21:08:38 PST." <Pine.BSF.4.10.9912062106510.20503-100000@current1.whistle.com>
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> > > On Mon, 6 Dec 1999, Mike Smith wrote: > > > msmith 1999/12/06 20:35:37 PST > > Change the default poweroff delay from 0 to 5 seconds. This seems to be > > adequate for the IDE disks that I have available for testing. Most seem > > to wait between 1 and 3 seconds before flushing their caches. > > > We (whistle) added explicit commands to tell IDE drives to not cache > writes.. > I am not sure how generic they are.... Or whether they are at all desirable in the general case. A "better" fix would be to have the atadisk driver explicitly flush the cache on each drive while it's shutting down. This is just an expedient stopgap to save us in the meantime. -- \\ Give a man a fish, and you feed him for a day. \\ Mike Smith \\ Tell him he should learn how to fish himself, \\ msmith@freebsd.org \\ and he'll hate you for a lifetime. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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