Date: Wed, 20 Oct 2010 02:53:40 -0700 From: Darren Reed <darernr@freebsd.org> To: Peter Jeremy <peterjeremy@acm.org> Cc: freebsd-current@freebsd.org Subject: Re: 2TB HDD = TIMEOUT - READ_DMA48 .... Message-ID: <4CBEBC24.3060007@freebsd.org> In-Reply-To: <20101018200226.GA51447@server.vk2pj.dyndns.org> References: <4CB639DB.3090907@fastmail.net> <20101018200226.GA51447@server.vk2pj.dyndns.org>
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Peter Jeremy wrote: > On 2010-Oct-13 22:59:39 +0000, Darren Reed <darrenr@fastmail.net> wrote: > >> As another body that today bought a 2TB HDD, I can confirm the presence >> of kernel messages relating to READ_DMA48 with FreeBSD 8. >> The drive in question is a Hitachi one, not a Samsung. >> >> Is it the drive, system or operating system? >> > > You'll need to provide some more details such as how old your FreeBSD > 8 is, drive model number, controller details and the actual error > message you are getting. > > I recently bought a Hitachi Deskstar 7K2000, which is sitting in an > Astone enclosure (identifying as "Sunplus Technology Co.,Ltd."). > Unfortunately, I'm limited to USB2 whilst I wait for the correct eSATA > adapter. Whilst the first disk was DOA, its replacement is running > perfectly (though slowly) with my 2-week-old FreeBSD 8.1-stable. In > particular, one of the first tests I did was to write a pseudo-random > sequence over the entire surface and then verify it to ensure that all > sectors are uniquely addressable > When I booted FreeBSD on the bare metal, the problem was not present. Nor was it present when I attached the drive via USB to NetBSD and that got me to thinking because it did show up with NetBSD under VMWare... thus... This turned out to be a VMWare issue. The problem was solved by upgrading VMWare Workstation from 6.5.3 to 7.1.2. Hope this helps. Darren
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