On 10.06.2007 06:40, RusH wrote: > > Im asking about reinitialization because I want to implement it in > Memtest (memtest.org). I want to be able to setup memory controler the > way I like and continue the test. Memtest is big (>100KB) and Im > affraid it wont fit in cache so i need some real ram. Thats where the > 'jump to CAR, reinitialize controller, jump back to ram' idea comes > from. Is it doable?
Why not run Memtest from graphics card RAM? A few years ago, graphics card RAM was really low quality, so periodic checksumming of any software running there might be necessary. > Does reinitializing memory controler destroy all the data in ram? Depends. Some embedded systems (like the OLPC laptop) put memory into self-refresh for suspend-to-RAM and reinitialize the memory controller on resume without losing any contents. However, I wouldn't count on that for any recent non-embedded x86 system. Regards, Carl-Daniel -- linuxbios mailing list [email protected] http://www.linuxbios.org/mailman/listinfo/linuxbios
