Date: Thu, 1 Jul 2010 11:50:57 -0700 From: Juli Mallett <jmallett@FreeBSD.org> To: "Jayachandran C." <c.jayachandran@gmail.com> Cc: freebsd-mips@freebsd.org Subject: Re: Merging 64 bit changes to -HEAD Message-ID: <AANLkTin3zIQPx4R5Ow51tg_tLZbPNYw1Zhg0-ZhLq-Q3@mail.gmail.com> In-Reply-To: <AANLkTinGkedtaE0EDUWaK-Csjiy1r5pIK5U9uKWTD_PS@mail.gmail.com> References: <AANLkTik8jFkB7FTIIhyjalkfv1c0yXqse57Jzz527uf_@mail.gmail.com> <897604F6-95C4-49A8-B11F-277A74C8DBAE@gmail.com> <AANLkTilfW_zOFKuIa0gJ3ahTo-vGC1VNk99a1H24uFRq@mail.gmail.com> <AANLkTil78NFxH016C7MntD8L3d4rFlCudJ0Lv22L0KCb@mail.gmail.com> <3C0AEF9B-AE0C-4459-A4E1-2C8C30C10FD6@gmail.com> <AANLkTint7Hyf79EH29OLsIfreQRd7dQMdvX9wRq4v_yG@mail.gmail.com> <C6D73C96-3640-4502-A9D7-B3597E37E80A@gmail.com> <AANLkTilQIqF4FCfgLdVcKdcsAUVjCmr89Lu0TEXUFdYN@mail.gmail.com> <25B9A19D-0A6B-4731-8FB1-A2C6722F0E9C@gmail.com> <AANLkTim_9-G6ZuA0vkpLeG4n4GVBpBlxhGBy_7eQoIM4@mail.gmail.com> <C1BD2512-8A48-4AB2-B9CA-C46DDCBE5256@gmail.com> <AANLkTimgyYggdDYchEfb3yskmA0PsttjVzkOSMaWFsjH@mail.gmail.com> <7886D15B-79BF-4BC6-8467-26A8D0FE3D00@gmail.com> <AANLkTinGkedtaE0EDUWaK-Csjiy1r5pIK5U9uKWTD_PS@mail.gmail.com>
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On Thu, Jul 1, 2010 at 11:47, Jayachandran C. <c.jayachandran@gmail.com> wr= ote: > Looks like I was on the wrong track, it now looks like the pagemask > maybe the cause. =A0My suspicion is that the bootloader setups a > pagemask and we never clear it because all the operations save and > restore the mask. As far as I can see the TLB exception handler will > not update pagemask. Ah! I sure think all of our code that touches the TLB should really set PageMask. Nice catch! > Juli - any comments on this? Do you need to save/restore pagemask for > some reason, otherwise I will take out the part from tlb.c. =A0Will send > out a patch a bit later. Feel free to remove that. I don't think it's really useful, it seems like it's just an old habit of mine. Juli.
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