Messages in this thread | | | Date | Mon, 14 Apr 2008 11:08:09 -0700 | From | "Yinghai Lu" <> | Subject | Re: x86 git tree broken (bisected) |
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On Mon, Apr 14, 2008 at 2:16 AM, Ingo Molnar <mingo@elte.hu> wrote: > > * Yinghai Lu <yhlu.kernel@gmail.com> wrote: > > > > > Attached is dmesg output from current x86.git with > > > debug_gart_checking.patch applied. > > > > please test the final one ... ... > > > > You should get back 64M memory back. > > so basically with all the right patches applied, and GART set to 32MB in > the BIOS, Rafael should have more free RAM on his system than ever > before :-)
Yes
> > i've put all the patches into x86.git/latest (it's all uploaded already > as well), so that should give Rafael a one-stop shop to test it out. [i > have not applied the debug patch that changes the aperture test from > 32MB to 64MB, and it should be unnecessary as well] > > btw., Yinghai, should we perhaps add a WARN_ON() to those places where > we waste RAM (such as the "This costs you 64 MB of RAM" message) - so > that kerneloops.org can pick those warnings up? Maybe there are other > situations where we waste RAM, and people dont realize it.
in Rafael case, just need to ask user to increase GART size in BIOS if more than 4G RAM installed ( or 4G installed with hardware memhole remapping enabled).
if less than 4G installed, just take the BIOS setting with 32M
YH
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