Date: Mon, 22 Jul 2013 14:27:38 -0700 From: Neel Natu <neelnatu@gmail.com> To: =?ISO-8859-1?Q?Gustau_P=E9rez_i_Querol?= <gperez@entel.upc.edu> Cc: Konstantin Belousov <kostikbel@gmail.com>, FreeBSD current <freebsd-current@freebsd.org> Subject: Re: Panic when starting X with Intel KMS Message-ID: <CAFgRE9GTcy8H7i3x77txDQ_fDEJmC4RKpqrv1OoPXnrQrn%2BXog@mail.gmail.com> In-Reply-To: <51ED8A4F.8050506@entel.upc.edu> References: <51E6EB0A.2060407@entel.upc.edu> <51EA5166.4020508@entel.upc.edu> <CAPjTQNG7CBYNMQ4yitXv3Wy81YMk-osqcSH=BB1=HjsOqweszw@mail.gmail.com> <20130721071842.GZ5991@kib.kiev.ua> <51EBAA76.8020100@entel.upc.edu> <20130721185145.GE5991@kib.kiev.ua> <51EC43BA.1000800@entel.upc.edu> <51ED0CEC.80307@entel.upc.edu> <20130722111940.GK5991@kib.kiev.ua> <51ED8A4F.8050506@entel.upc.edu>
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Hi Gustau,
On Mon, Jul 22, 2013 at 12:38 PM, Gustau P=E9rez i Querol
<gperez@entel.upc.edu> wrote:
> Al 22/07/2013 13:19, En/na Konstantin Belousov ha escrit:
>
>> On Mon, Jul 22, 2013 at 12:43:56PM +0200, Gustau P??rez i Querol wrote:
>>>>>
>>>>> As a blind shot, try to
>>>>> revert r252653.
>>>
>>> r252652 works OK. r252653 panics.
>>
>> What if, instead of reverting r252653, apply the following:
>>
>> diff --git a/sys/vm/vm_phys.c b/sys/vm/vm_phys.c
>> index 66f3b0c..78f07f7 100644
>> --- a/sys/vm/vm_phys.c
>> +++ b/sys/vm/vm_phys.c
>> @@ -547,6 +547,8 @@ vm_phys_fictitious_reg_range(vm_paddr_t start,
>> vm_paddr_t end,
>> pi =3D atop(start);
>> if (pi >=3D first_page && atop(end) < vm_page_array_size) {
>> fp =3D &vm_page_array[pi - first_page];
>> + for (i =3D 0; i < page_count; i++)
>> + fp[i].flags =3D 0;
>> malloced =3D FALSE;
>> } else
>> #endif
>>
>> ?
>
>
> After applying the patch the system panics for the same reason and the
> KASSERT didn't evaluate like before. The count now when the system panics
> seem to have been overflowed again, you can find the core at:
>
> https://dl.dropboxusercontent.com/u/2094962/core.txt.6
>
Could you apply the following patch to amd64/amd64/pmap.c and see if
it fixes the problem:
http://people.freebsd.org/~neel/patches/pmap_remove_pages.patch
best
Neel
>
>
>
>
>
>
>
> --
> Salut i for=E7a,
>
> Gustau
>
> -------------------------------------------------------------------------=
--
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> O O O Gustau P=E9rez i Querol
> O O O Unitat de Gesti=F3 dels departaments
> O O O Matem=E0tica Aplicada IV i Enginyeria Telem=E0tica
>
> Universitat Polit=E8cnica de Catalunya
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