> I think I've found a serious bug in AMD Athlon page_alloc.c routines in there's nothing athlon-specific there. > correct on the DFI AK75-EC motherboard, if I set the CPU kernel type to 586 > everything is 100%, if I use "Athlon" kernel type I get: > kernel BUG at page_alloc.c:73 when you select athlon at compile time, you're mainly getting Arjan's athlon-specific page-clear and -copy functions (along with some relatively trivial alignment changes). these functions are ~3x as fast as the generic ones, and seem to cause dram/cpu-related oopes on some machines. in short: faster code pushes the hardware past stability. there's no reason, so far, to think that there's anything wrong with the code - Alan had a possible issue with prefetching and very old Atlons, but the people reporting problems like this are actually running kt133a and new fsb133 Athlons. > I've changed RAM, Motherboard etc... still the same. changed to a non-kt133a board? how about running fsb and/or dram at 100, rather than 133? > Also the same system runs linux-2.2.16 100% 2.2 doesn't have the fast page-clear and -copy code afaik. afaik, there are *no* problems on kt133 machines, and haven't heard any pain from people who might have Ali Magic1, AMD 760 or KT266 boards, but they're still rare. - 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/
