Date: Thu, 17 May 2001 14:31:55 -0700 (PDT) From: John Baldwin <jhb@FreeBSD.org> To: current@FreeBSD.org Cc: mckusick@FreeBSD.org Subject: background fsck Message-ID: <XFMail.010517143155.jhb@FreeBSD.org>
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Has anyone else been trying out the background fsck? Last night I was working on the ithread code some and managed to panic my laptop while ejecting a pccard. Anyways, the kernel ate itself while trying to flush its buffers and I ended up with a dirty filesystem. I rebooted and let fsck -p do its usual thing, except that it freaked out. The actual fsck of / proceeded fine (actual fs activity when I panic'd my machine was very low, so the filesystems weren't corrupted, just marked dirty). When it got to /usr and /var, however, fsck freaked out and claimed that the primary superblock didn't match the first alternate. At this point I first had a heart attack. Once I recovered from that, I attempted read-only mounts of /usr and /var which did succeed, except that each mount spewed out a message to the kernel console about losing x files and y blocks. Confident that my fs wasn't totally hosed after doing some ls's, I unmounted /usr and /var and ran a non-preen fsck on them, which insisted on using an alternate superblock, but otherwise proceeded fine (except that it seemed to take longer than usual). Once the fscks's finished, it seemed to be all ok. Is anyone else seeing any weird stuff like this? I've never had fsck complain about the superblocks after a crash before. > df -t ufs Filesystem 1K-blocks Used Avail Capacity Mounted on /dev/ad0s2a 148823 84717 52201 62% / /dev/ad0s2f 10191770 7052563 2323866 75% /usr /dev/ad0s2e 99183 14254 76995 16% /var > mount -t ufs /dev/ad0s2a on / (ufs, local) /dev/ad0s2f on /usr (ufs, local) /dev/ad0s2e on /var (ufs, local) > grep ufs /etc/fstab /dev/ad0s2a / ufs rw 1 1 /dev/ad0s2f /usr ufs rw 2 2 /dev/ad0s2e /var ufs rw 2 2 Hmm, that's odd, I did have soft updates on on /usr and /var before the crash. It seems to be off now. :( -- John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/ PGP Key: http://www.baldwin.cx/~john/pgpkey.asc "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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