Messages in this thread | | | Date | Mon, 21 Apr 2008 09:38:44 -0700 | From | "Yinghai Lu" <> | Subject | Re: x86: memtest bootparam |
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On Mon, Apr 21, 2008 at 7:17 AM, Ingo Molnar <mingo@elte.hu> wrote: > > * Yinghai Lu <yhlu.kernel@gmail.com> wrote: > > > > > OK. Did the new memtest feature get documented anywhere, btw? > > > > I'm only vaguely aware of its existence. > > > > > > Actually it would be nice if memtest was global, not x86-specific, > > > feature. > > > > > > I had some fun with arm running with 256mb, when only 128mb was > > > present. It booted succesfully... > > > > depends if you have find_e820_area_size in you platform. that need > > reserve_early... > > > > maybe we need to make reserve_early generic at first. > > e820 is very x86 specific - i think the proper interface would be to > move the memtest feature to the bootmem subsystem. I.e. to run it once > all the early reservations have been flushed into bootmem - but before > we free all bootmem pages into the page allocator. > > this still leaves a rather large amount of RAM to be tested, and keeps > it all cross-arch as well. Hm?
sounds good, and arch part only need to check region that bootdata use for bootmem allocation.
YH
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