Re: linux26 stage1 failed

Hi,

On Wednesday 01 August 2007 22:47:18 t2@xxxxxxxx wrote:
> hello,
> 
> On Wed, 1 Aug 2007 15:06:39 +0200
> René Rebe <rene@xxxxxxxxxxxx> wrote:
> 
> > Hi,
> > 
> > On Wednesday 01 August 2007 13:00:25 t2@xxxxxxxx wrote:
> > 
> > > hi rene, 
> > > 
> > > here is my error log as discussed at irc
> > 
> > ouh, that attachment was a little big, better compress it the
> > next time :-)
> 
> uh, sorry...
> 
> > 
> > The stange thing is, that I can not reproduce this failure, on the
> > reference tester it just built thru:
> > 
> > ...
> >   CC [M]  drivers/video/neofb.o
> > include/asm/io.h: In function 'memcpy_toio':
> > include/asm/io.h:208: warning: passing argument 1 of '__memcpy' discards 
> > qualifiers from pointer target type
> > include/asm/io.h: In function 'memset_io':
> > include/asm/io.h:200: warning: passing argument 1 of 
> > '__constant_c_and_count_memset' discards qualifiers from pointer target type
> > include/asm/io.h:200: warning: passing argument 1 of '__constant_c_memset' 
> > discards qualifiers from pointer target type
> > include/asm/io.h:200: warning: passing argument 1 of '__memset_generic' 
> > discards qualifiers from pointer target type
> > include/asm/io.h:200: warning: passing argument 1 of '__memset_generic' 
> > discards qualifiers from pointer target type
> >   CC [M]  drivers/video/tdfxfb.o
> > ...
> > 
> > While you get:
> > 
> >   CC [M]  drivers/video/neofb.o
> > drivers/video/neofb.c: In function 'neo_map_video':
> > drivers/video/neofb.c:1788: error: 'struct fb_fix_screeninfo' has no member 
> > named 'smem_'
> > drivers/video/neofb.c:1788: error: stray '\354' in program
> > drivers/video/neofb.c:1788: error: expected ';' before 'en'
> > make[2]: *** [drivers/video/neofb.o] Error 1
> > 
> > The line 1788 in questions reads this on my side:
> > 
> >         info->fix.smem_len = video_len;
> > 
> > Can you reproduce this or did a memory bit toggle randomly on your side? Do 
> > you
> > have additional kernel patches that mess with the file?
> 
> yes, same error again.
> 
> I made a ./scripts/Cleanup  incl. -build and -cache
> after that, it works. Right now, the system is compiling stage 5 glibc. It 
> takes a lot of time on my hardware.

Hm.

> BTW, what about the playstation3 as a compile station? Did you test it? 

We have a PS3 in our office, brought for the sole purpose to bring PS3 support
to T2. However as we are so busy right now we have not yet finalized it.

PS3 is not so impressive as Linux desktop / workstation hardware, mostly due
to the limited RAM: it only has 256MB system RAM and another 256MB for
the GFX chip.

As accessing the GFX (NVidia RSX) RAM from the host CPU is kinda slow
the graphic RAM can not used as additional RAM, and even as SWAP
is said to be slower than accessing the hard-disk :-(((

The graphic is just an unaccellerated frame-buffer driver, as the "Other OS"
(Linux) is running in a hypervisor and has no direct access to the hardware.
The hypervisor does not yet allow to access the NVidia based graphic chip,
and thus only allows pushing pre-rendered pixels to the frame-buffer ...

But I heared just yesterday that people employed by Sony are working
to exporting more of the graphic chip to the "Other OS" (read Linux).

But even if you have more powerful graphic, for normal use the 256MB
RAM really are a little limitted.

Yours,

-- 
  René Rebe - ExactCODE GmbH - Europe, Germany, Berlin
  http://exactcode.de | http://t2-project.org | http://rene.rebe.name

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