Date: Sun, 12 Dec 2004 11:35:38 +0100 From: Michael Nottebrock <michaelnottebrock@gmx.net> To: freebsd-current@freebsd.org Cc: Divacky Roman <xdivac02@stud.fit.vutbr.cz> Subject: Re: strange df output Message-ID: <200412121135.43408.michaelnottebrock@gmx.net> In-Reply-To: <20041212090656.GA98988@stud.fit.vutbr.cz> References: <20041212090656.GA98988@stud.fit.vutbr.cz>
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[-- Attachment #1 --] On Sunday, 12. December 2004 10:06, Divacky Roman wrote: > Hi, > > with recent 6-current I had to reboot my machine (I tried mount my cdrom > but the process hanged in kernel then everything started to crash). > > after panic, fsck was invoken: > witten ~# fsck / > ** /dev/ad0s1a (NO WRITE) > ** Last Mounted on / > ** Root file system > ** Phase 1 - Check Blocks and Sizes > fsck_ufs: cannot alloc 3221471004 bytes for inoinfo > > and df shows this: > witten ~# df > Filesystem Size Used Avail Capacity Mounted on > /dev/ad0s1a 143G 4.5T -4.4T 3520% / > > > is this a known problem? what can I do with it? Kinda, see this thread: http://lists.freebsd.org/pipermail/freebsd-current/2004-November/043670.html From all of my experience, you can consider this filesystem busted. Try to get as much data off it as you can (chances are some files are so corrupt that you'll get a hang when you try to copy them) and take care to preserve file modes & permissions, then newfs and restore. It's kinda sad, but right now soft-updates must probably be considered unsafe for some configurations. The reliability in the case of crashes is about just as bad as mounting something async... my guess is that it's not really a new bug in softupdates, but rather effects from modern big ata drives with big caches and write caching enabled (and no tagged queueing - although IIRC the ata tags support is disabled in 5.x and -CURRENT anyway). -- ,_, | Michael Nottebrock | lofi@freebsd.org (/^ ^\) | FreeBSD - The Power to Serve | http://www.freebsd.org \u/ | K Desktop Environment on FreeBSD | http://freebsd.kde.org [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.6 (FreeBSD) iD8DBQBBvB7/Xhc68WspdLARAkuYAJkB4e7vQDHreSABU2bzuErjCT4u3wCglIIT H2XMK0GIR6WUVYSTB9PJmpY= =OmJf -----END PGP SIGNATURE-----
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