On Fri, Oct 15, 2004 at 08:48:56PM +1000, Peter Jeremy wrote: > On Fri, 2004-Oct-15 09:31:18 +0200, Guido van Rooij wrote: > >I am beginning to wonder if we should have a boot option that enables > >a thorough memtest from within the kernel...(e.g. boot -m). > > What do you define as "thorough"? A thorough memory test requires > intimate knowledge of the physical memory cell layout (to ensure > that pattern tests make sense) as well as the ability to control > temperature, the supply voltage, thresholds and timings (to detect > marginal conditions). > > "make buildworld" is probably the best memory test we're likely to > find. The speed is on a par with Memtest86 as well. Add/vary > '-k' for additional coverage. > The problem started with my system where FreeBSD would consitently panic at the same point during installation (at an early point). The funny thing is that a W2K install would at least run much longer (I never completed it so I never had it actually write to disk). A make buildworld cannot be used in sich a scenario. A nice memtester that could be called from the bootloader would have been handy. -GuidoReceived on Fri Oct 15 2004 - 10:35:49 UTC
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