Date: Tue, 14 Nov 2000 22:55:40 -0800 From: Kirk McKusick <mckusick@mckusick.com> To: Donn Miller <dmmiller@cvzoom.net> Cc: Garrett Wollman <wollman@khavrinen.lcs.mit.edu>, stable@FreeBSD.ORG Subject: Any outstanding soft-updates or FFS bugs (matching this description)? Message-ID: <200011150655.WAA66123@beastie.mckusick.com> In-Reply-To: Your message of "Tue, 14 Nov 2000 23:36:12 EST." <3A1212BC.F648B2E9@cvzoom.net>
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Date: Tue, 14 Nov 2000 23:36:12 -0500 From: Donn Miller <dmmiller@cvzoom.net> To: Matt Dillon <dillon@earth.backplane.com> CC: Garrett Wollman <wollman@khavrinen.lcs.mit.edu>, stable@FreeBSD.ORG, mckusick@mckusick.com Subject: Re: Any outstanding soft-updates or FFS bugs (matching this description)? Matt Dillon wrote: > I've had filesystems blow up under test when filling a parition > with softupdates turned on. The most recent time was last > weekend while I was testing low-memory stuff. It would be nice if the softupdates code (or maybe other kernel code could do this) could detect when filesystem space is running low, and kick into some "fail-safe" mode. For example, when the free space drops below 15%, softupdates could automatically shut itself off, and then turn itself back on when the free space rises above 20% (hysteresis). - Donn Unfortunately, soft updates are not easily turned off and on. Doing so requires stopping all operations on the filesystem which is non trivial and disruptive. And more to the point, soft updates should not fail in an out-of-space situation. If it does, that is a bug and should be fixed. Kirk McKusick To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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