Re: 2.6.27-rc1 mtrr fixes do not work

[Alexander Huemer]

Yinghai Lu wrote:
> On Thu, Aug 7, 2008 at 4:16 PM, Yinghai Lu <yhlu.kernel@xxxxxxxxx> wrote:
>   
> > On Thu, Aug 7, 2008 at 3:14 PM, Alexander Huemer
> > <alexander.huemer@xxxxxxxxx> wrote:
> >     
> > > Yinghai Lu wrote:
> > >       
> > > > On Thu, Aug 7, 2008 at 1:23 PM, Yinghai Lu <yhlu.kernel@xxxxxxxxx> wrote:
> > > >
> > > >         
> > > > > On Thu, Aug 7, 2008 at 1:15 PM, Pallipadi, Venkatesh
> > > > > <venkatesh.pallipadi@xxxxxxxxx> wrote:
> > > > >
> > > > >           
> > > > > > Adding Yinghai.
> > > > > >
> > > > > >
> > > > > >             
> > > > > > > -----Original Message-----
> > > > > > > From: Rafael J. Wysocki [mailto:rjw@xxxxxxx]
> > > > > > > Sent: Thursday, August 07, 2008 1:14 PM
> > > > > > > To: Alexander Huemer
> > > > > > > Cc: linux-kernel@xxxxxxxxxxxxxxx; Andi Kleen; Pallipadi, Venkatesh
> > > > > > > Subject: Re: 2.6.27-rc1 mtrr fixes do not work
> > > > > > >
> > > > > > > [Adding CCs.]
> > > > > > >
> > > > > > > On Wednesday, 6 of August 2008, Alexander Huemer wrote:
> > > > > > >
> > > > > > >               
> > > > > > > > hi,
> > > > > > > >
> > > > > > > > mtrr is wrong on my machine. the fixes of 2.6.27-rc1 do not
> > > > > > > >
> > > > > > > >                 
> > > > > > > seem to work.
> > > > > > >
> > > > > > >               
> > > > > > > > bios is the newest version, mainboard vendor says it's not
> > > > > > > >
> > > > > > > >                 
> > > > > > > their fault.
> > > > > > >
> > > > > > >               
> > > > > > > > mainboard is tyan i5000pw.
> > > > > > > > please tell me how i can help and cc me on answers, i am not
> > > > > > > >
> > > > > > > >                 
> > > > > > > subscribed.
> > > > > > >
> > > > > > >               
> > > > > > > > seaburg ~ # cat /proc/mtrr
> > > > > > > > reg00: base=0x00000000 (   0MB), size=198656MB: write-back, count=1
> > > > > > > > reg01: base=0x80000000 (2048MB), size=197632MB: write-back, count=1
> > > > > > > > reg02: base=0x100000000 (4096MB), size=197632MB: write-back, count=1
> > > > > > > >          seaburg ~ # zcat /proc/config.gz | grep MTRR
> > > > > > > > CONFIG_MTRR=y
> > > > > > > > CONFIG_MTRR_SANITIZER=y
> > > > > > > > CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=1
> > > > > > > > CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1
> > > > > > > > seaburg ~ # uname -a
> > > > > > > > Linux seaburg 2.6.27-rc1-blackbit #3 SMP Wed Aug 6 00:34:51 CEST 2008
> > > > > > > > x86_64 Intel(R) Xeon(R) CPU E5420 @ 2.50GHz GenuineIntel GNU/Linux
> > > > > > > > seaburg ~ #
> > > > > > > >
> > > > > > > >                 
> > > > > alexander,
> > > > >
> > > > > please send out
> > > > > dmesg -s 262144 > dmesg.txt
> > > > > or
> > > > > dmesg -s 524288 > dmesg.txt
> > > > >
> > > > > you may need to set
> > > > > CONFIG_LOG_BUF_SHIFT=19
> > > > >
> > > > >           
> > > > without mtrr_gran_size=64m mtrr_chunk_size=1024m on command line
> > > >
> > > > guess mtrr_chunk_size=512m could work
> > > >
> > > > YH
> > > >
> > > >         
> > > yinghai,
> > >
> > > thanks for the response.
> > > i booted with
> > > mtrr_gransize_64m mtrr_chunk_size_512m
> > > mtrr_chunk_size_512m
> > > here are the 2 dmesg outputs:
> > > http://xx.vu/~ahuemer/dmesg_1.txt
> > > http://xx.vu/~ahuemer/dmesg_2.txt
> > >
> > >       
> > can you put "debug" in command line too?
> >     
>
> without mtrr_chunk_size etc in command line...please
>
> YH
>   
http://xx.vu/~ahuemer/dmesg_3.txt
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