Date: Wed, 25 Feb 2009 17:32:19 +1100 From: Peter Jeremy <peterjeremy@optushome.com.au> To: Carl <k0802647@telus.net> Cc: freebsd-fs@freebsd.org Subject: Re: UFS2 and/or sparse file bug causing copy process to land in 'D'' state? Message-ID: <20090225063219.GC31601@server.vk2pj.dyndns.org> In-Reply-To: <49A3B2FC.4050601@telus.net> References: <49A10626.8060705@telus.net> <alpine.BSF.2.00.0902231022520.71916@fledge.watson.org> <49A3357A.7080008@telus.net> <59adc1a0902232102q6c0f6034r354ff9ad3a2b3222@mail.gmail.com> <49A3B2FC.4050601@telus.net>
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--dkEUBIird37B8yKS Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2009-Feb-24 00:42:36 -0800, Carl <k0802647@telus.net> wrote: > The same truncate sequence has now been tried on a second system which is= =20 > hardware- and OS-identical. The same hanging scenario occurs on it. That= =20 > should eliminate the possibility of a defective hard disk as the cause. Reproducable problems are _much_ easier to fix. > The same sequence has also now been tried on a laptop, both natively and = in=20 > a virtual machine on top of WinXP, although both were FreeBSD 7.1 rather= =20 > than 7.0. Neither have failed so far. So it's possible that the bug you are hitting was fixed between 7.0 and 7.1. Is it possible for you to upgrade to 7.1? > create/change to a new window and issue the reboot. New SSH connections= =20 > don't work. Commands like ps and date still work, but commands like ls go= =20 > straight into a permanent 'D' state themselves. Bad scene for a remote=20 > system :-( This sounds like a filesystem deadlock-to-root. If you do get to DDB, try 'showalllocks' and 'showlockedvnods'. > It's all the kernel debugging stuff I've no knowledge of. At this stage, all I can suggest is that it's time for you to expand your knowledge :-) --=20 Peter Jeremy --dkEUBIird37B8yKS Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.10 (FreeBSD) iEYEARECAAYFAkmk5fMACgkQ/opHv/APuIdVZwCfcggNLmFPXaH/ZeBeP1r3jCuk l8AAn0ibjcJ6Ol5whTK5zHFmwERxe8rJ =9uwt -----END PGP SIGNATURE----- --dkEUBIird37B8yKS--
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