Date: Mon, 10 Jan 2011 07:13:57 +0100 From: Tom Vijlbrief <tom.vijlbrief@xs4all.nl> To: Jeremy Chadwick <freebsd@jdc.parodius.com> Cc: freebsd-stable@freebsd.org Subject: Re: Panic 8.2 PRERELEASE WRITE_DMA48 Message-ID: <AANLkTim13%2B=jUuRUm1=x9r=x9ufWga66jMCLyRaGKCdk@mail.gmail.com> In-Reply-To: <20110109163027.GA42562@icarus.home.lan> References: <AANLkTi=iaq1Lx521oUF2BSB4-2wi9Ys2fTLzz4kLaLVo@mail.gmail.com> <20110109122243.GA37530@icarus.home.lan> <AANLkTin3FHcsdMtA9OYaA2wrUx%2BfpyEsTThdRmS8sXA5@mail.gmail.com> <20110109163027.GA42562@icarus.home.lan>
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2011/1/9 Jeremy Chadwick <freebsd@jdc.parodius.com>: > > Not to get off topic, but what is causing this? =A0It looks like you have > a cron job or something very aggressive doing a "smartctl -t short > /dev/ad4" or equivalent. =A0If you have such, please disable this > immediately. =A0You shouldn't be doing SMART tests with such regularity; > it accomplishes absolutely nothing, especially the "short" tests. =A0Let > the drive operate normally, otherwise run smartd and watch logs instead. > I have this default entry (from the author of that file) in smartd.conf and enabled it on many machines over the years. Is it a bad practice? # First (primary) ATA/IDE hard disk. Monitor all attributes, enable # automatic online data collection, automatic Attribute autosave, and # start a short self-test every day between 2-3am, and a long self test # Saturdays between 3-4am. /dev/hda -a -o on -S on -s (S/../.././02|L/../../6/03) Thanks for all your feedback
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