Date: Sun, 18 Dec 2005 05:17:37 +0800 From: Xin LI <delphij@gmail.com> To: Peter Jeremy <PeterJeremy@optushome.com.au> Cc: freebsd-stable <freebsd-stable@freebsd.org> Subject: Re: indefinite wait buffer: Does this indicate hardware issue? Message-ID: <a78074950512171317x2cbaf92aob4132f0f5ef2297b@mail.gmail.com> In-Reply-To: <20051216205446.GS77268@cirb503493.alcatel.com.au> References: <a78074950512160849w70335610xd2cb0c3b61ed92a2@mail.gmail.com> <20051216193942.GA92029@xor.obsecurity.org> <a78074950512161206l370bdd7fg8b1e8fd1f6ab0a43@mail.gmail.com> <20051216205446.GS77268@cirb503493.alcatel.com.au>
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Hi, Peter, On 12/17/05, Peter Jeremy <PeterJeremy@optushome.com.au> wrote: > On Sat, 2005-Dec-17 04:06:36 +0800, Xin LI wrote: > >No, it's sometimes other, and is quite infrequent. On the other hand, > >neither SMART nor error has reported some incident, so I was stuck > >when looking on hardware issues, as the message does not indicate > >which disk(s) may have problem... > > A hardware error should have been reported as such. But if you > suspect a disk problem, try dd'ing the swap partition (or the whole > disk) to /dev/null. If you can read the whole partition, you can > probably write to it. (Or you could dd /dev/zero to the partitions > whilst swap is not attached - eg in single user after boot). If you > suspect retries are a problem, monitor the I/O rate with iostat or > systat and see if it suddenly drops. Actually I already tried to dd with no luck... I suspect that the cable may have some problems, though, as a hard disk is working at half speed of the other one (say, it's not a sudden drop)... But will this cause the warning? Cheers, -- Xin LI <delphij@delphij.net> http://www.delphij.nethelp
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