Date: Fri, 02 Jul 2010 19:35:14 -0400 From: jhell <jhell@dataix.net> To: "C. P. Ghost" <cpghost@cordula.ws> Cc: freebsd-stable@freebsd.org, "William D. Colburn \(Schlake\)" <schlake@gmail.com> Subject: Re: My kernel panics suck Message-ID: <4C2E77B2.4080907@dataix.net> In-Reply-To: <AANLkTikwQa3vbEgC7UpzhUbW93x6Fy9LdLBsjB65r364@mail.gmail.com> References: <AANLkTim0mewvQt3T-704Jb39zAY2kAZJGp6OvI_gcjvU@mail.gmail.com> <AANLkTikwQa3vbEgC7UpzhUbW93x6Fy9LdLBsjB65r364@mail.gmail.com>
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On 07/02/2010 16:29, C. P. Ghost wrote: > On Fri, Jul 2, 2010 at 9:18 PM, William D. Colburn (Schlake) > <schlake@gmail.com> wrote: >> I got my new 8-stable system up, and now I just have recurrent disk >> controller failures. The machine can't stay more than about ten >> minutes before it panics into a hung kernel, or simple reboots. >> Unfortunately, I know the root cause of the panics. If my computer is >> sitting on the table, then the kernel doesn't panic. If the computer >> is sitting on the desk, then it panics like mad. The table is wooden, >> the desk is metal. Of course, I'm also changing power too. On the >> table, I use a wall outlet, while on the desk I use my Smart UPS. >> Unfortunately, you can't really help me with this. I'm just writing >> in out of the hope that I'll get some sympathy for this problem. > > Yuck...! If you have an electrical insulation problem, and your desk > is metal, I'd _really_ urge you to replace your hardware completely, > or have it properly insulated by a professional electrician. An electric > shock could cause real pain() and panic(). ;-) > > But seriously, if that's the only reason for the panics, it's a pretty > strong hint that you have an electrical problem: when ICs are > underpowered, they tend to behave erratically. > >> -- Schlake > > -cpghost. > Adding to this, though I find it unlikely but worth mentioning but you could be grounding out to a already charged surface through a screw in the case (laptop/desktop), check the bottom and cover up anything you find with black electrical tape and try again. Another route would be to grab a multimeter and test the metal table for a positive ? source. If that metal table also happens to be screwed down to the floor then take all the screws out as one maybe more could be running across some weird current. Regards, -- +-+-+-+-+-+ |j|h|e|l|l| +-+-+-+-+-+
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