Date: Tue, 16 Sep 2014 15:44:37 -0700 (PDT) From: Don Lewis <truckman@FreeBSD.org> To: ohartman@zedat.fu-berlin.de Cc: freebsd-current@FreeBSD.org, killing@multiplay.co.uk Subject: Re: zpool: multiple IDs, CURRENT drops all pools after reboot Message-ID: <201409162244.s8GMibax038105@gw.catspoiler.org> In-Reply-To: <20140917003433.47f4318b.ohartman@zedat.fu-berlin.de>
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On 17 Sep, O. Hartmann wrote: > Am Tue, 16 Sep 2014 22:06:36 +0100 > "Steven Hartland" <killing@multiplay.co.uk> schrieb: >> All that said you shouldnt end up with corrupt data no matter >> what. >> >> Are there any other symptoms? Has memory been checked for >> faults etc? >> >> Regards >> Steve > > The reason why my desktop has only 4 GB left is that I discovered memory corruption when > equipted with 8 GB - there occured a strange bit flip. I can not assure that by ripping > off 4 GB (2 times 2GB, it is an old C2D/P45 based box) the problem has gone. I susepct > a dying chipset - when overheated (at the moment BIOS shows 80 degrees Celsius), the > problem is more frequent. You might want to try relaxing the memory timing in the BIOS. In particular, try adding some cycles to CAS Latency. I've had a couple of systems with ECC RAM that had excessive ECC errors with the default RAM timing that got much better when I increased CAS Latency. You might also want to try rigging an extra fan to blow on the RAM and/or chipset.
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