Date: Thu, 7 Oct 2004 10:02:50 -0700 From: Kris Kennaway <kris@obsecurity.org> To: Chris Elsworth <chris@shagged.org> Cc: Kris Kennaway <kris@obsecurity.org> Subject: Re: dump/mksnap_ffs & fsck failure Message-ID: <20041007170250.GA4053@xor.obsecurity.org> In-Reply-To: <20041007165520.GA22942@shagged.org> References: <20041007110802.GA4960@shagged.org> <20041007133415.GA93146@xor.obsecurity.org> <20041007165520.GA22942@shagged.org>
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--pWyiEgJYm5f9v55/ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Oct 07, 2004 at 05:55:20PM +0100, Chris Elsworth wrote: > > > # /sbin/dump -0 -LuaC32 -f /backup/root.dump / > > > mksnap_ffs: Cannot create //.snap/dump_snapshot: Input/output error > > >=20 > > > # fsck_ufs /dev/mirror/gma > > > ** /dev/mirror/gma (NO WRITE) > > > ** Last Mounted on / > > > ** Root file system > > > ** Phase 1 - Check Blocks and Sizes > > > fsck_ufs: cannot alloc 4294967292 bytes for inoinfo > >=20 > > Why can't it write to the device? Is it mounted read-write? Drop it > > to read-only and retry. Vice versa for the root filesystem; is it > > mounted read-only? >=20 > Ah, sorry, should have said - yes, the filesystem was mounted > read-write (/dev/mirror/gma and / are the same thing), but it does the > same thing in read-only: >=20 > # init 1 > .. > # umount -a > # mount -o ro / > # mount > /dev/mirror/gma on / (ufs, local, read-only) > devfs on /dev (devfs, local) > # fsck -y / > ** /dev/mirror/gma > ** Last Mounted on / > ** Root file system > ** Phase 1 - Check Blocks and Sizes > fsck_ufs: cannot alloc 4294967292 bytes for inoinfo >=20 >=20 > Surely fsck doesn't really need 4GB of physical mem? There is 1GB of > physical and 4GB of swap configured in this. Perhaps it's trying to allocate a negative amount of memory (that value is 2^32-4, or (unsigned int)(-4)), perhaps because it's failing to check for an error condition and using the resulting negative value. Kris --pWyiEgJYm5f9v55/ Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.6 (FreeBSD) iD8DBQFBZXa6Wry0BWjoQKURAvCNAJ0TXbSHQB5HAQuA3AsYeNhFQd/00gCg/pw/ PbE1NsA2tzzIQlc4HXSELoU= =BQcK -----END PGP SIGNATURE----- --pWyiEgJYm5f9v55/--
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