From: Uwe Doering [mailto:[EMAIL PROTECTED] > Jonathan Gilpin wrote: > > I've run memtest (memtest86.com) kindly provided by Don and > it passed all > > the tests. I've installed installed a kernel module to test > for memory > > errors and found that again no memory errors are found... > So this means it's > > either a problem with the CPU's or a geniune bug in the > kernel. (bugger!) > > No, that's unfortunately not what it means. If a memory test > fails you > can draw the conclusion that you have bad memory, but this > doesn't work > the other way round. If a memory test passes there is still a > possibility that a memory chip is the culprit since memory > test software > cannot find all errors. > > Also, there is the chip set on the mainboard that coordinates > bus access > etc. for the two CPUs. Mainboard and chip set developers are > known to > make errors, too. In this case you would have to swap the entire > mainboard, possible with one from a different manufacturer. > I can tell > you from my own experience that it is really hard to find reliable PC > hardware these days, in light of ever shorter and faster > product release > cycles.
I have several hundred of the motherboard the poster is using, and it works reliably with MP operation with 4.X. The memtest86 that i sent him understands the ECC registers on the e7501 MCH, it should find all correctable and uncorrectable errors. --don _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
