Messages in this thread | | | Date | Mon, 21 Apr 2008 16:17:35 +0200 | From | Ingo Molnar <> | Subject | Re: x86: memtest bootparam |
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* 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?
Ingo
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