Date: Sat, 05 Jul 2008 11:59:34 -0400 From: gnn@freebsd.org To: Bakul Shah <bakul@bitblocks.com> Cc: current@freebsd.org Subject: Re: Has anyone else seen any form of in memory or on disk corruption? Message-ID: <m2skuowcd5.wl%gnn@neville-neil.com> In-Reply-To: <20080704191043.87CFE5B4B@mail.bitblocks.com> References: <m2r6a9poww.wl%gnn@neville-neil.com> <20080704191043.87CFE5B4B@mail.bitblocks.com>
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At Fri, 04 Jul 2008 12:10:43 -0700, Bakul Shah wrote: > > On Fri, 04 Jul 2008 12:58:07 EDT gnn@freebsd.org wrote: > > I have hundreds of these files to run this over, and a full check > > takes about 3 hours, but I usually see some form of corruption within > > the first 20 minutes. > > ... > > 4) Corruption is seen only after a reboot, if the machines continue to > > run corruption is never seen again, until another reboot. > > This sounds like a hardware problem.... May be heat related or due > to a marginal power supply? Try using a beefier supply on one of > the systems or removing something to reduce load. Or increase the > load by making disks do lots of seeking while you are running unzip > and running other things at the same time. To isolate heat related > problems we used to blow cold air (or hot air) on suspected > components and see if the problem goes away or gets worse. These machines are in a brand new data center with more than adequate cooling and have very beefy power. Best, George
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