Date: Thu, 15 Jul 2010 17:13:05 +0000 From: Masoom Shaikh <masoom.shaikh@gmail.com> To: freebsd-stable@freebsd.org Subject: FreeBSD RELEASE-8.0-p3 panic Message-ID: <AANLkTincvGogVBN2E8U6t-5pNhgUx9OSXSsHxAAak4kH@mail.gmail.com>
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Howdy, here is the image of my FreeBSD panic http://images.cjb.net/d64f4.jpg the error says RAM parity error(not visible in pic). but I have following reasons to believed it could be wrong 1. I have 1GB of RAM, with two chips of 512MB each. It panics even if I boot with only 512MB of total RAM. i.e. one chip removed. It panics for both chips individually. 2. I tried replacing my both 512MB chips with two 512MB chips from my friends laptop, it still panics with exact same error. RAM parity error, it is very unlikely that his chips have this problem. He runs Ubuntu on those chips and Windows7 with no issues whatsoever. 3. Windows7 operates on this(my) laptop just fine. sometimes it take 3-4 attempts to boot it, since it panics the moment KDM tries to load. But once running it runs few hours if I do not subject it to load. Even moderate load like browsing some multimedia content websites, e.g. youtube or some site with lots of flash based ads or even some javascript heavy page like GMail etc... It appears the moment I start subjecting the machine to load, mem usage increases and it hits the part of RAM which might possibly have parity error. have a look at the pic, the frame pointer is always remains same 0xffffffff803f1ef1. I have already asked, and again ask, is there a way to ask FreeBSD to "ignore" some part of RAM ? how do I zero in on the exact point of failure ? I am aware, just too many variables are here, some wild guesses ? I am very sorry for my feeble OS debugging skills if any, but FreeBSD has nothing to do with my day job, it is just a hobby for me. I sincerely want it to work. regards, Masoom Shaikh
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