Date: Tue, 24 Mar 1998 06:10:01 -0800 (PST) From: Zach Heilig <zach@gaffaneys.com> To: freebsd-bugs Subject: Re: kern/4413 Message-ID: <199803241410.GAA01820@hub.freebsd.org>
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The following reply was made to PR kern/4413; it has been noted by GNATS. From: Zach Heilig <zach@gaffaneys.com> To: ac199@hwcn.org Cc: freebsd-gnats-submit@FreeBSd.ORG Subject: Re: kern/4413 Date: Tue, 24 Mar 1998 03:39:22 -0600 On Mon, Mar 23, 1998 at 04:35:52PM -0500, Tim Vanderhoek wrote: > > If you could not reproduce it, it probably really was fixed. I suppose one > > way to really check would be to mount a floppy (ufs formatted), write to it/ > > sync/eject it (do not unmount it yet), put a few pinholes through the section > > where the meta-data sits, and put it back in. Now try to unmount it. > I suppose just mounting the floppy and then physically removing > it before umounting it is not a valid test. In your pr you said > that you had to insert a write-protected floppy... Did you try > umount -f'ing with the floppy drive empty? Thats just too obvious and practical of a test... It will never work :-). I thought of that right after I sent this last mail... [why didn't I ever do that??]. Unless it's getting some valid looking data from the hosed tracks that confused the filesystem, just removing the disk should work. I'm trying that now and same problem. umount -f doesn't unmount a floppy removed from the drive: BTW, I'm not entirely sure what 'Old Mount_msdosfs, flags=0' is doing there. I get it whenever I mount any filesystem after mounting a dos filesystem. Script started on Tue Mar 24 03:27:36 1998 # mount /dev/fd1 /mnt Old mount_msdosfs, flags=0 < removed floppy here .. > # umount /mnt fd1: Operation timeout fd1c: hard error writing fsbn 64 (No status) umount: /mnt: Input/output error # umount -f /mnt fdc0: cmd 4 failed at out byte 1 of 2 fdc0: Sense Drive Status failed fd1c: hard error writing fsbn 64 (No status) umount: /mnt: Input/output error # umount -f /mnt fdc0: cmd 4 failed at out byte 1 of 2 fdc0: Sense Drive Status failed fd1c: hard error writing fsbn 64 (No status) umount: /mnt: Input/output error # df Filesystem 1K-blocks Used Avail Capacity Mounted on ... /dev/fd1 1103 0 1015 0% /mnt < replaced floppy here > # umount /mnt # Script done on Tue Mar 24 03:28:33 1998 This was -current of March 14 (kernel March 12). -- Zach Heilig -- zach@gaffaneys.com Real Programs don't use shared text. Otherwise, how can they use functions for scratch space after they are finished calling them? To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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