Date: Wed, 17 Dec 1997 10:45:50 -0500 (EST) From: Thomas David Rivers <rivers@dignus.com> To: mike@smith.net.au, sclawson@bottles.cs.utah.edu Cc: freebsd-hackers@FreeBSD.ORG, ivt@gamma.ru, tlambert@primenet.com Subject: Re: panic: blkfree: freeling free block/frag Message-ID: <199712171545.KAA17178@lakes.dignus.com>
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> > Mike Smith uttered: > > Single-bit memory error, perhaps? Still, keep an eye on it... > > Probably. The only real culprit for parity problems right now is > the L2 cache of the processor, since we've got the version of the > Pentium II that dosen't do ECC on it's L2 cache, and the memory in the > machine is 36bit (yes, parity checking was/is enabled). Unfortunately > when we were buying the machine we didn't know there were two > different versions of the chip. While I wouldn't discount such a possibility - I'd point out that I've been able to reproduce this problem on three machines. It seems unlikely that all three had the same parity errors (each has parity ram, and would thus, presumably, get NMIs for any RAM problems.) - Dave Rivers -
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