Messages in this thread | | | Date | Tue, 1 Aug 2006 14:37:51 -0700 | From | Chris Wright <> | Subject | Re: [PATCH 7 of 13] Make __FIXADDR_TOP variable to allow it to make space for a hypervisor |
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* Andrew Morton (akpm@osdl.org) wrote: > On Tue, 1 Aug 2006 02:03:30 -0700 > Chris Wright <chrisw@sous-sol.org> wrote: > > > * Jeremy Fitzhardinge (jeremy@xensource.com) wrote: > > > -#define MAXMEM (-__PAGE_OFFSET-__VMALLOC_RESERVE) > > > +#define MAXMEM (__FIXADDR_TOP-__PAGE_OFFSET-__VMALLOC_RESERVE) > > > > In the native case we lose one page of lowmem now. > > erm, isn't this the hunk which gave one of my machines a 4kb highmem zone? > I have memories of reverting it.
Yes, that does sound quite familiar. I couldn't find the thread, do you recall any of the details? I expect it's the same issue as the off by one page I mentioned above.
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