Ensure your BIOS supports the stepping of the Opterons you have. Eg, if you have the Iwill H8501, BIOS v1.8 [1] covers all the current steppings. You may even encounter problems if you mix different steppings.
--- [1] http://www.iwill.net/product_2s.asp?p_id=90&tp=BIOS Oliver Weihe wrote: > Hello, > > I've two Iwill 8way Opteron equipped with 8 Opteron 875 CPUs each. > (In the past we build some systems with singlecore CPUs and they went > very well) > > The Problem now is that the machines crash during boot when maxcpus is > greater than 8. > 2.6.12-rc4 works well with maxcpus=8, with 9 or more it freezes after > "Testing NMI Watchdog... OK" > > 2.6.12-rc5 and above have more problems even with maxcpus=4 or less very > early during booting. > > 2.6.13-X crashes later during boot (from 2 to 16 cores it's the same > behavior) > > The last I can so on the console (kernel 2.6.13-rc2-git4, maxcpus=2..16) > is: > > NET: Registered protocol family 1 > Using IPI Shortcut mode > int3: 0000 [1] SMP > CPU4 > Modules linked in: > Freeing unused kernel memory: 212k freed > Pid: 0, comm: swapper Not tainted 2.6.13-rc2-git4-default > RIP: 0010:[<ffffffff8050fc00>] > > After that the machines are totally freezed. > > With maxcpus=1 all (tested) versions >=2.6.12-rc3 are able to boot. > > Any hints/ideas/what ever? > > Regards, > Oliver Weihe > > P.S. if you answer CC me ;) ___ Daniel J Blueman - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
