Date: Tue, 6 Jun 2000 13:51:09 -0500 (CDT) From: David Scheidt <dscheidt@enteract.com> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: Neil Blakey-Milner <nbm@mithrandr.moria.org>, Oleg Derevenetz <oleg@oleg.vsi.ru>, freebsd-hackers@FreeBSD.ORG Subject: Re: Write-protected floppy crash Message-ID: <Pine.NEB.3.96.1000606134727.46369A-100000@shell-1.enteract.com> In-Reply-To: <200006061535.IAA94049@apollo.backplane.com>
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On Tue, 6 Jun 2000, Matthew Dillon wrote: : The behavior is probably outfall from buffer cache changes for 4.0, : but it would have to be fixed a different way. The buffer cache : changes were basically to not throw away dirty buffers with write errors : because doing so could result in extremely serious filesystem : corruption due to the system making modifications to meta data (the : dirty buffer) and then having them magically, randomly 'revert' out : from under it due to the write error. Result: catastrophic filesystem : corruption. Does it make a difference that this happens when you dd to the device, without going through a filesystem layer? I don't ever use filesystems on floppies, and have had this crash. David Scheidt To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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