Date: Tue, 29 Jun 2010 14:02:00 -0300 From: Luiz Otavio O Souza <lists.br@gmail.com> To: Jayachandran C. <c.jayachandran@gmail.com> Cc: freebsd-mips@freebsd.org Subject: Re: Merging 64 bit changes to -HEAD Message-ID: <25B9A19D-0A6B-4731-8FB1-A2C6722F0E9C@gmail.com> In-Reply-To: <AANLkTilQIqF4FCfgLdVcKdcsAUVjCmr89Lu0TEXUFdYN@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>
next in thread | previous in thread | raw e-mail | index | archive | help
On Jun 29, 2010, at 8:02 AM, Jayachandran C. wrote: > On Tue, Jun 29, 2010 at 2:28 AM, Luiz Otavio O Souza = <lists.br@gmail.com> wrote: >>> Thanks for the the update. Looks like pmap_map for kernel is = failing, >>> may be the new tlb_update code causes this. Can you apply the >>> attached patch and see if the problem still persists, it replaces = the >>> new tlb_update code with the older version. >>>=20 >>> Obviously not a fix, but if we can narrow it down to this function, >>> fixing will be easier. >>>=20 >>> JC. >>> <try.diff> >>=20 >> JC, >>=20 >> This fix the problem ! Thanks ! Now, at least, you know where to look = :) >=20 > The new tlb_update does not seem to update the tlb entry if the tlbp > fails. Here's a patch that should make the new function behave like > the older one. The patch is in attached file 'tlb-update.diff'. >=20 > If that does not work, I'm not sure what the issue is. You could also > try try the nop-change.diff attached. It tries to switch the ssnop > used for delay in the new code with 'nop' which was used by the old > code. >=20 > Thanks, > JC. > <tlb-update.diff><nop-change.diff> JC, The nop-change seems to have no effect at all and with the tlb-update = patch the kernel apparently crash at bzero(), here is the dmesg with = TRAP_DEBUG enabled: http://mips.pastebin.com/jydPvJ20 So hopefully you are on the right track and this may be something = obvious to you. Luiz=
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?25B9A19D-0A6B-4731-8FB1-A2C6722F0E9C>