Re: Queston about Walnut

Re: Queston about Walnut

[Wolfgang Denk]

In message <000e01c388dc$eb525510$0202a8c0@homevl9biy3v7e> you wrote:
>
> > Who gave you such (obviously wrong) instructions?
>
>         I take the example of u-boot to create the "uImage" and download it
> to the board.

Please show me which U-Boot document uses 0x00400000 as load or entry
point address so I can fix this immediately. It is WRONG  and  CANNOT
work.

> > For PowerPC systems, both  Load  Address  and  Entry  Point  must  be
> > specified as 0.
>
>         I have tried 0 before. But I get an exception in return. Could you
> kindly give me some instructions how to run a kernel on this board?

Please start by giving a precise description of  what  you  did.  and
which error messages you got.

You "get an exception" - when? When running "mkimage"?  When  booting
the kernel? Which sort of exception? What is the exact error message?
Please include a complete log of your actions and all output.

Best regards,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
Totally illogical, there was no chance.
	-- Spock, "The Galileo Seven", stardate 2822.3

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

Re: Queston about Walnut

[Jacky Lam]

> > > Who gave you such (obviously wrong) instructions?
> >
> >         I take the example of u-boot to create the "uImage" and download
it
> > to the board.
>
> Please show me which U-Boot document uses 0x00400000 as load or entry
> point address so I can fix this immediately. It is WRONG  and  CANNOT
> work.

    I take the "step" from u-boot's README file only. Because I got an
exception, I try to load it to other address. I use 0x00400000 because
zImage seems to be loaded at there....anyway, just a guess.

>
> Please start by giving a precise description of  what  you  did.  and
> which error messages you got.

    Here is the exact step that I have done so far:

    <Compile toolcahin by crosstools>
    <Patch 2.4.22 kernel with patch on
http://www.kernel.org/pub/linux/kernel/ports/ppc/2.4/linuxppc-2.4.22.patch.bz2>
    <Compile kernel with cross toolchain>
    powerpc-405-linux-gnu-objcopy -O binary -R .note -R .comment -S vmlinux
linux.bin
    gzip -9  linux.bin
    ./mkimage -A ppc -O linux -T kernel -C gzip -a 0x00000000 -e
0x00000000 -n "test" -d linux.bin.gz uImage
    <run ftpd on host>
    <boot up the board and enter command prompt of u-boot>

    Here is the u-boot log:

    U-Boot 0.4.0 (Sep 29 2003 - 11:44:31)

CPU:   IBM PowerPC 405GP Rev. D at 200 MHz (PLB=100, OPB=50, EBC=33 MHz)
           PCI sync clock at 33 MHz, external PCI arbiter enabled
           16 kB I-Cache 8 kB D-Cache
Board: ### No HW ID - assuming WALNUT405
I2C:   ready
DRAM:  64 MB
FLASH: 512 kB
In:    serial
Out:   serial
Err:   serial
KGDB:  kgdb ready
ready
BEDBUG:ready
Hit any key to stop autoboot:  0
=> tftpboot
ENET Speed is 100 Mbps - FULL duplex connection
TFTP from server 10.5.6.76; our IP address is 10.5.3.45
Filename 'uImage'.
Load address: 0x400000
Loading: #################################################################
         #######################################################
done
Bytes transferred = 612748 (9598c hex)
=> bootm
## Booting image at 00400000 ...
   Image Name:   test
   Created:      2003-10-03   1:08:06 UTC
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    612684 Bytes = 598.3 kB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
id mach(): done
MMU:enter
MMU:hw init
MMU:mapin

<hang>


>
> You "get an exception" - when? When running "mkimage"?  When  booting
> the kernel? Which sort of exception? What is the exact error message?
> Please include a complete log of your actions and all output.

    Maybe I do something wrong before. Now, it just hangs. Thanks your
suggestion about the load address.



Best Regards,
Jacky


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

Re: Queston about Walnut

[Jacky Lam]

> the kernel you use - vanilla+ppc-patch - is based on linuxppc-2.4, which
> is not appropriate for your system. [At least it was like that some time
> ago. Tom, could you please comment.] Try using the linuxppc_2_4_devel
> tree from Bitkeeper or from our FTP server (see http://www.denx.de).

    I just tried. The result is the same. Using the original walnut_config,
it hangs in mapin_ram().
    If I use minimal config, it hangs in __sti().

    Does anyone still working on Walnut platform and successfully boot up
2.4 kernel on that? If no, could someone remember what is the last known
working toolchain and kernel on Walnut?

    I use toolchain gcc 3.2.3, glibc 2.2.5 because I have some trouble to
compile to newest one (it requests my host gcc >=3.1). Is this related? If
yes, I would tried to reinstall my RedHat to newer version, but it would be
painful.....

    Thanks.

Best regards,
Jacky


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

Re: Queston about Walnut

[Matt Porter]

On Fri, Oct 03, 2003 at 05:40:46PM +0800, Jacky Lam wrote:
>
> > the kernel you use - vanilla+ppc-patch - is based on linuxppc-2.4, which
> > is not appropriate for your system. [At least it was like that some time
> > ago. Tom, could you please comment.] Try using the linuxppc_2_4_devel
> > tree from Bitkeeper or from our FTP server (see http://www.denx.de).
>
>     I just tried. The result is the same. Using the original walnut_config,
> it hangs in mapin_ram().
>     If I use minimal config, it hangs in __sti().
>
>     Does anyone still working on Walnut platform and successfully boot up
> 2.4 kernel on that? If no, could someone remember what is the last known
> working toolchain and kernel on Walnut?

I noticed this about a week ago.  It is some kind of merge problem
between linux-2.4 and linuxppc-2.4.  linux-2.4 boot fine on walnut
for me.  I didn't have time to investigate but might take a look at
it again soon.

-Matt

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

Re: Queston about Walnut

[Jacky Lam]

----- Original Message -----
From: "Matt Porter" <mporter@kernel.crashing.org>
To: "Jacky Lam" <jackylam@astri.org>
Cc: <linuxppc-embedded@lists.linuxppc.org>
Sent: Friday, October 03, 2003 11:07 PM
Subject: Re: Queston about Walnut


>
> On Fri, Oct 03, 2003 at 05:40:46PM +0800, Jacky Lam wrote:
> >
> > > the kernel you use - vanilla+ppc-patch - is based on linuxppc-2.4,
which
> > > is not appropriate for your system. [At least it was like that some
time
> > > ago. Tom, could you please comment.] Try using the linuxppc_2_4_devel
> > > tree from Bitkeeper or from our FTP server (see http://www.denx.de).
> >
> >     I just tried. The result is the same. Using the original
walnut_config,
> > it hangs in mapin_ram().
> >     If I use minimal config, it hangs in __sti().
> >
> >     Does anyone still working on Walnut platform and successfully boot
up
> > 2.4 kernel on that? If no, could someone remember what is the last known
> > working toolchain and kernel on Walnut?
>
> I noticed this about a week ago.  It is some kind of merge problem
> between linux-2.4 and linuxppc-2.4.  linux-2.4 boot fine on walnut
> for me.  I didn't have time to investigate but might take a look at
> it again soon.

    Really? That's so great! Do you have any idea about this? Maybe I can
try to investigate as well. Also, do you remember what is the version just
before this merge problem occurs? Thanks.

Best Regards,
Jacky


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

Re: Queston about Walnut

[Matt Porter]

On Sat, Oct 04, 2003 at 12:34:37AM +0800, Jacky Lam wrote:
> > On Fri, Oct 03, 2003 at 05:40:46PM +0800, Jacky Lam wrote:
> > >
> > > > the kernel you use - vanilla+ppc-patch - is based on linuxppc-2.4,
> which
> > > > is not appropriate for your system. [At least it was like that some
> time
> > > > ago. Tom, could you please comment.] Try using the linuxppc_2_4_devel
> > > > tree from Bitkeeper or from our FTP server (see http://www.denx.de).
> > >
> > >     I just tried. The result is the same. Using the original
> walnut_config,
> > > it hangs in mapin_ram().
> > >     If I use minimal config, it hangs in __sti().
> > >
> > >     Does anyone still working on Walnut platform and successfully boot
> up
> > > 2.4 kernel on that? If no, could someone remember what is the last known
> > > working toolchain and kernel on Walnut?
> >
> > I noticed this about a week ago.  It is some kind of merge problem
> > between linux-2.4 and linuxppc-2.4.  linux-2.4 boot fine on walnut
> > for me.  I didn't have time to investigate but might take a look at
> > it again soon.
>
>     Really? That's so great! Do you have any idea about this? Maybe I can
> try to investigate as well. Also, do you remember what is the version just
> before this merge problem occurs? Thanks.

Well, maybe I should have cleaned my tree from a 440 build, I had
an old CONFIG_440 hanging around causing the kernel to not be
happy.  At any rate, I verified that current linuxppc-2.4 boots
on walnut from stock openbios.

-Matt

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

Re: Queston about Walnut

[Dan Kegel]

Jacky Lam wrote:
>     Does anyone still working on Walnut platform and successfully boot up
> 2.4 kernel on that? If no, could someone remember what is the last known
> working toolchain and kernel on Walnut?

We used 2.4.17 from linuxppc_2_4_devel.

 >     I use toolchain gcc 3.2.3, glibc 2.2.5 because I have some trouble to
 > compile to newest one (it requests my host gcc >=3.1). Is this related? If
 > yes, I would tried to reinstall my RedHat to newer version, but it would be
 > painful.....

Why painful?  It's as easy as this:

----------
wget ftp://ftp.gnu.org/gnu/gcc/gcc-3.3.1.tar.gz
tar -xzvf gcc-3.3.1.tar.gz
mkdir build-gcc
cd build-gcc
../gcc-3.3.1/configure --prefix=/usr/local/gcc-3.3.1 --enable-languages=c,c++
make
sudo make install
----------

Then put /usr/local/gcc-3.3.1/bin in your PATH before anything else, and you're done.

BTW here's the (awful) script I used to grab the kernel.  (It reveals my
total lack of knowledge of bitkeeper; I think 'bk export' is preferred
to my clumsy removal of CVS directories.)

#!/bin/sh

if [ -z $1 ]; then
         echo "Usage: `basename $0` TAG"
         echo "Example: `basename $0` v2.4.18"
         echo "Purpose: fetch a kernel source tarball from the linuxppc_2_4_devel tree"
         exit 1
fi
set -x -e

rm -rf linux linuxppc_2_4_devel-$1 || /bin/true

# Download bk from http://www.bitkeeper.com
bk clone -r$1 bk://ppc.bkserver.net/linuxppc_2_4_devel linuxppc_2_4_devel-$1
cd linuxppc_2_4_devel-$1
find . -type d -exec bk get {} \;

# Hey!  nonxargs version fails with 'find: no such file foo/SCCS' after deleting foo/SCCS!
# Bug in gnu find 4.1.7?  Or in kernel 2.4.18?  Who knows...
#find . -name SCCS -exec rm {} \;
find . -name SCCS -print | xargs rm -rf

rm -rf RESYNC/
rm -rf PENDING/
rm -rf BitKeeper/
rm -f ChangeSet
cd ..
mv linuxppc_2_4_devel-$1 linux



--
Dan Kegel
http://www.kegel.com
http://counter.li.org/cgi-bin/runscript/display-person.cgi?user=78045


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

Re: Queston about Walnut

[Jacky Lam]

----- Original Message -----
From: "Dan Kegel" <dank@kegel.com>
To: "Jacky Lam" <jackylam@astri.org>
Cc: <linuxppc-embedded@lists.linuxppc.org>
Sent: Saturday, October 04, 2003 12:10 AM
Subject: Re: Queston about Walnut



>  >     I use toolchain gcc 3.2.3, glibc 2.2.5 because I have some trouble
to
>  > compile to newest one (it requests my host gcc >=3.1). Is this related?
If
>  > yes, I would tried to reinstall my RedHat to newer version, but it
would be
>  > painful.....
>
> Why painful?  It's as easy as this:

    No. The story is like this....

    I upgrade my gcc to 3.3.1 on my host and start to compile my cross
toolchain. However, while it is compiling gcc, it has strange error that I
have never seen (seems gcc has made something that ld can't understand). So,
I guess gcc 3.3.1 may not work very well with my old glibc (provided in
RedHat 7.2). I don't know how to upgrade glibc safely and make it compatible
to existing applications. That's why I would like to upgrade the whole
Redhat.....and this is painful...

>
> ----------
> wget ftp://ftp.gnu.org/gnu/gcc/gcc-3.3.1.tar.gz
> tar -xzvf gcc-3.3.1.tar.gz
> mkdir build-gcc
> cd build-gcc
>
../gcc-3.3.1/configure --prefix=/usr/local/gcc-3.3.1 --enable-languages=c,c+
+
> make
> sudo make install
> ----------
>
> Then put /usr/local/gcc-3.3.1/bin in your PATH before anything else, and
you're done.
>
> BTW here's the (awful) script I used to grab the kernel.  (It reveals my
> total lack of knowledge of bitkeeper; I think 'bk export' is preferred
> to my clumsy removal of CVS directories.)
>
> #!/bin/sh
>
> if [ -z $1 ]; then
>          echo "Usage: `basename $0` TAG"
>          echo "Example: `basename $0` v2.4.18"
>          echo "Purpose: fetch a kernel source tarball from the
linuxppc_2_4_devel tree"
>          exit 1
> fi
> set -x -e
>
> rm -rf linux linuxppc_2_4_devel-$1 || /bin/true
>
> # Download bk from http://www.bitkeeper.com
> bk clone -r$1 bk://ppc.bkserver.net/linuxppc_2_4_devel
linuxppc_2_4_devel-$1
> cd linuxppc_2_4_devel-$1
> find . -type d -exec bk get {} \;
>
> # Hey!  nonxargs version fails with 'find: no such file foo/SCCS' after
deleting foo/SCCS!
> # Bug in gnu find 4.1.7?  Or in kernel 2.4.18?  Who knows...
> #find . -name SCCS -exec rm {} \;
> find . -name SCCS -print | xargs rm -rf
>
> rm -rf RESYNC/
> rm -rf PENDING/
> rm -rf BitKeeper/
> rm -f ChangeSet
> cd ..
> mv linuxppc_2_4_devel-$1 linux
>
>
>
> --
> Dan Kegel
> http://www.kegel.com
> http://counter.li.org/cgi-bin/runscript/display-person.cgi?user=78045
>
>
>
        I use CVS to grab the linuxppc-2.4-devel module. Is it the same as
that? Thanks.

Best regards,
Jacky


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

Re: Queston about Walnut

[Dan Kegel]

Jacky Lam wrote:
>     I upgrade my gcc to 3.3.1 on my host and start to compile my cross
> toolchain. However, while it is compiling gcc, it has strange error that I
> have never seen (seems gcc has made something that ld can't understand). So,
> I guess gcc 3.3.1 may not work very well with my old glibc (provided in
> RedHat 7.2). I don't know how to upgrade glibc safely and make it compatible
> to existing applications. That's why I would like to upgrade the whole
> Redhat.....and this is painful...

I see.  Well, you can always build and install a newer binutils;
that's not painful, and might get you past the problem.
(If you post the error message, we might be able to help.)

But I agree that doing a fresh install of e.g. Red Hat 9 is
nicer than keeping an old system alive by little patches
(unless you're going for an uptime record).

>># Download bk from http://www.bitkeeper.com
>>bk clone -r$1 bk://ppc.bkserver.net/linuxppc_2_4_devel
>
>         I use CVS to grab the linuxppc-2.4-devel module. Is it the same as
> that? Thanks.

Probably.  I dunno.
- Dan


--
Dan Kegel
http://www.kegel.com
http://counter.li.org/cgi-bin/runscript/display-person.cgi?user=78045


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

Kernel versions

[Gary Thomas]

Tom,

For more than a year now, I've been working from the linuxppc_2_4_devel
tree, sending updates which have been merged in, etc.  I just looked at
the recently discussed 2.4 tree (http://ppc.bkbits.net:8080/linuxppc-2.4)
and I see none of this work present.

So my questions are:
* What is the "proper" tree to be working from (2.4, 2.6)?
* What is the merge path from the work in 2_4_devel to these other trees?

... I wouldn't want all of my efforts to just get lost.

Thanks.

--
Gary Thomas <gary@mlbassoc.com>
MLB Associates


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

Re: Kernel versions

[Tom Rini]

On Fri, Oct 03, 2003 at 05:36:11PM -0600, Gary Thomas wrote:

> Tom,
>
> For more than a year now, I've been working from the linuxppc_2_4_devel
> tree, sending updates which have been merged in, etc.  I just looked at
> the recently discussed 2.4 tree (http://ppc.bkbits.net:8080/linuxppc-2.4)
> and I see none of this work present.
>
> So my questions are:
> * What is the "proper" tree to be working from (2.4, 2.6)?
> * What is the merge path from the work in 2_4_devel to these other trees?

For 2.6, a tree based off of Linus' BK (or CVS or SVN or tarball of
that) or current 2.6 release.  For 2.4, it depends on the type of board:
8xx: Should be mostly merged into kernel.org now, but if you need
something, pull it up and out separately.
'classic' mpc10x based: All of the library type bits of code
(mpc10x_common, gen550) are in kernel.org, so it should be trivial to
pull a platform out of _devel
gt64260 (and gt64360): At OLS Paul talked to Mark about what needs to
bee done to make him happy with the code and Mark has expressed a desire
to do some (other?) cleanups as well to the 64260 code, which should
take into account the 64360 when possible.
'other' classic: Most likely needs someone with the hardware to state
that it's still working.
8260: Needs things to be pulled up and out of 2_4_devel.

And by 'pull it up and out' I mean to make another patch / ChangeSet of
just those changes (or many, if there's many difference pieces to it)
that would go in before the patch for a given board.

Now, since 2.4 (2_4_devel, even) and 2.6 are not in sync for some code
(gt64260) and not all platforms work in 2.6 (8xx, 8260 is in almost
working shape again) it might not be an equal amount of work needed to
get something into 2.4 and 2.6, but it would be appreciated if patches
come in at roughly the same time for both (or 2.6 first, even).

The linuxppc-2.4 tree contains what's gone to Marcelo already, along
with some things that are being polished up.  At the moment, I don't
think there's anything special there, but I haven't looked.

> ... I wouldn't want all of my efforts to just get lost.

It won't be.

--
Tom Rini
http://gate.crashing.org/~trini/

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

Re: Queston about Walnut

[Jacky Lam]

        I trace the code in kernel and I found some strange behaviors.
        In the first case (using walnut_config provided in kernel source),
kernel hangs at mapin_ram();
        However, if I turn off all unnecssary options and leave only serial
console, my kernel can run until init/main.c: kmem_cache_init();

        As both hangs in memory related function, I tried to run a memory
test on my board in u-boot. But it hangs.

        => mtest 0 3ffffff
        Pattern 00000000  Writing...
        <hangs>

    I tried smaller range (ffffff), it still hangs.

    I am sure my board's memory is in good condition because VxWorks can run
very well on it. Have any idea? Thanks.

Best regards,
Jacky





----- Original Message -----
From: "Wolfgang Denk" <wd@denx.de>
To: "Jacky Lam" <jackylam@astri.org>
Cc: <linuxppc-embedded@lists.linuxppc.org>
Sent: Thursday, October 02, 2003 8:17 PM
Subject: Re: Queston about Walnut


>
> In message <000e01c388dc$eb525510$0202a8c0@homevl9biy3v7e> you wrote:
> >
> > > Who gave you such (obviously wrong) instructions?
> >
> >         I take the example of u-boot to create the "uImage" and download
it
> > to the board.
>
> Please show me which U-Boot document uses 0x00400000 as load or entry
> point address so I can fix this immediately. It is WRONG  and  CANNOT
> work.
>
> > > For PowerPC systems, both  Load  Address  and  Entry  Point  must  be
> > > specified as 0.
> >
> >         I have tried 0 before. But I get an exception in return. Could
you
> > kindly give me some instructions how to run a kernel on this board?
>
> Please start by giving a precise description of  what  you  did.  and
> which error messages you got.
>
> You "get an exception" - when? When running "mkimage"?  When  booting
> the kernel? Which sort of exception? What is the exact error message?
> Please include a complete log of your actions and all output.
>
> Best regards,
>
> Wolfgang Denk
>
> --
> Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
> Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
> Totally illogical, there was no chance.
> -- Spock, "The Galileo Seven", stardate 2822.3
>


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

Re: Queston about Walnut

[Jacky Lam]

----- Original Message -----
From: "Jacky Lam" <jackylam@astri.org>
To: "Wolfgang Denk" <wd@denx.de>
Cc: <linuxppc-embedded@lists.linuxppc.org>
Sent: Friday, October 03, 2003 12:11 PM
Subject: Re: Queston about Walnut


>
>         I trace the code in kernel and I found some strange behaviors.
>         In the first case (using walnut_config provided in kernel source),
> kernel hangs at mapin_ram();
>         However, if I turn off all unnecssary options and leave only
serial
> console, my kernel can run until init/main.c: kmem_cache_init();

        Sorry, it should be sti() just after kmem_cache_init()  instead.
>
>         As both hangs in memory related function, I tried to run a memory
> test on my board in u-boot. But it hangs.
>
>         => mtest 0 3ffffff
>         Pattern 00000000  Writing...
>         <hangs>
>
>     I tried smaller range (ffffff), it still hangs.
>
>     I am sure my board's memory is in good condition because VxWorks can
run
> very well on it. Have any idea? Thanks.
>
> Best regards,
> Jacky
>
>
>
>
>
> ----- Original Message -----
> From: "Wolfgang Denk" <wd@denx.de>
> To: "Jacky Lam" <jackylam@astri.org>
> Cc: <linuxppc-embedded@lists.linuxppc.org>
> Sent: Thursday, October 02, 2003 8:17 PM
> Subject: Re: Queston about Walnut
>
>
> >
> > In message <000e01c388dc$eb525510$0202a8c0@homevl9biy3v7e> you wrote:
> > >
> > > > Who gave you such (obviously wrong) instructions?
> > >
> > >         I take the example of u-boot to create the "uImage" and
download
> it
> > > to the board.
> >
> > Please show me which U-Boot document uses 0x00400000 as load or entry
> > point address so I can fix this immediately. It is WRONG  and  CANNOT
> > work.
> >
> > > > For PowerPC systems, both  Load  Address  and  Entry  Point  must
be
> > > > specified as 0.
> > >
> > >         I have tried 0 before. But I get an exception in return. Could
> you
> > > kindly give me some instructions how to run a kernel on this board?
> >
> > Please start by giving a precise description of  what  you  did.  and
> > which error messages you got.
> >
> > You "get an exception" - when? When running "mkimage"?  When  booting
> > the kernel? Which sort of exception? What is the exact error message?
> > Please include a complete log of your actions and all output.
> >
> > Best regards,
> >
> > Wolfgang Denk
> >
> > --
> > Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
> > Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
> > Totally illogical, there was no chance.
> > -- Spock, "The Galileo Seven", stardate 2822.3
> >
>
>


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

Kernel versions

[linuxppc]

Is there a linuxppc-2.6 kernel tree or are they still using the linuxppc-2.5
tree?

** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/

Re: Kernel versions

[Giuliano Pochini]

On Fri, 2 Jul 2004, linuxppc wrote:

> Is there a linuxppc-2.6 kernel tree or are they still using the
> linuxppc-2.5 tree?

The official 2.6.7 kernel works just fine on ppc machines.


--
Giuliano.

** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/

Re: Kernel versions

[Wolfgang Denk]

In message <Pine.LNX.4.58.0407021623360.22661@denise.shiny.it> you wrote:
>
> The official 2.6.7 kernel works just fine on ppc machines.

Please define "ppc machines". It doesn't work on most of the  systems
we have in the lab (like MPC8xx or MPC5200 etc.)

Best regards,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
It is easier to write an incorrect program than understand a  correct
one.

** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/

Re: Kernel versions

[Giuliano Pochini]

On Fri, 2 Jul 2004, Wolfgang Denk wrote:

> > The official 2.6.7 kernel works just fine on ppc machines.
>
> Please define "ppc machines". It doesn't work on most of the  systems
> we have in the lab (like MPC8xx or MPC5200 etc.)

The question was: "Is there a linuxppc-2.6 kernel tree or are they
still using the linuxppc-2.5 tree?".  "They" isn't a good definition
of what machines (or people ?) he was referring to.  I guessed he
meant the majority of ppc machines.


--
Giuliano.

** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/

Re: Kernel versions

[Gary Thomas]

On Fri, 2004-07-02 at 08:54, Wolfgang Denk wrote:
> In message <Pine.LNX.4.58.0407021623360.22661@denise.shiny.it> you wrote:
> >
> > The official 2.6.7 kernel works just fine on ppc machines.
>
> Please define "ppc machines". It doesn't work on most of the  systems
> we have in the lab (like MPC8xx or MPC5200 etc.)

Indeed.  Not all "PPC machines" are Apple MacIntosh systems, although
Macs do use the PowerPC CPU.  Too many folks simply equate the two...

--
Gary Thomas <gary@mlbassoc.com>
MLB Associates


** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/

Re: Kernel versions

[Benjamin Herrenschmidt]

On Fri, 2004-07-02 at 10:56, Gary Thomas wrote:
> On Fri, 2004-07-02 at 08:54, Wolfgang Denk wrote:
> > In message <Pine.LNX.4.58.0407021623360.22661@denise.shiny.it> you wrote:
> > >
> > > The official 2.6.7 kernel works just fine on ppc machines.
> >
> > Please define "ppc machines". It doesn't work on most of the  systems
> > we have in the lab (like MPC8xx or MPC5200 etc.)
>
> Indeed.  Not all "PPC machines" are Apple MacIntosh systems, although
> Macs do use the PowerPC CPU.  Too many folks simply equate the two...

Then send patches upstream. It's plain wrong to reproduce what we
had in 2.4 letting all sort of stuffs pile up in the "ppc" trees
that never get sent upstream.

I tend to think that pretty much everything including fancy board
support should be sent to lkml for comment & proposed upstream right
away.

Ben.


** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/

Re: Kernel versions

[David Woodhouse]

On Tue, 2004-07-06 at 10:08 -0500, Benjamin Herrenschmidt wrote:
> On Fri, 2004-07-02 at 10:56, Gary Thomas wrote:
> > On Fri, 2004-07-02 at 08:54, Wolfgang Denk wrote:
> > > In message <Pine.LNX.4.58.0407021623360.22661@denise.shiny.it> you wrote:
> > > >
> > > > The official 2.6.7 kernel works just fine on ppc machines.
> > >
> > > Please define "ppc machines". It doesn't work on most of the  systems
> > > we have in the lab (like MPC8xx or MPC5200 etc.)

There was a fair amount of MPC5200 code merged recently. MPC8xx
apparently isn't far off working either.

> > Indeed.  Not all "PPC machines" are Apple MacIntosh systems, although
> > Macs do use the PowerPC CPU.  Too many folks simply equate the two...

Amongst the "PPC machines" on which I have 2.6 running are mpc8265,
mpc8560 and a dual 745x machine with MV64360 chipset -- although the
latter isn't merged into Linus' tree yet.

It's not _just_ working on macs.

> I tend to think that pretty much everything including fancy board
> support should be sent to lkml for comment & proposed upstream right
> away.

Works for me.

--
dwmw2


** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/

Kernel versions

[Dragoslav Zaric]

Hello,

I have noticed that when compiling various kernel versions with same
.config file
(this is .config file from generic 2.6.27-7 kernel that works)
on same machine the results are unpredictable :) Sometimes machine just
shuts down during the compilation, and in most cases it won't boot. I am always
downloading kernel sources from official site and I think these are
stable versions.
For example, 2.6.27.7 , 2.6.27.21 etc.

I am compiling kernel and modules with:

make
make modules
make modules_install
make install

and then run in /boot folder

mkinitrd initrd.img-2.6.27.21 2.6.27.21

and modify /boot/grub/menu.lst

So, is there some convention or practice, to know which versions are
stable or do
different distribution have something to do with it ?

thanks,

Dragoslav Zaric
[Professional programmer, MSc in Astrophysics]

Re: Kernel versions

[Tomasz Chmielewski]

> I have noticed that when compiling various kernel versions with same
> .config file
> (this is .config file from generic 2.6.27-7 kernel that works)
> on same machine the results are unpredictable :) Sometimes machine just
> shuts down during the compilation

Shuts down during compilation? Or freezes?

It mostly means hardware problems.


> and in most cases it won't boot.

And what does kernel say during booting and where it breaks / stop booting?


-- 
Tomasz Chmielewski
http://wpkg.org

kernel versions

[Gary Thomas]

I have my own kernel recipes (historical reasons...) which I
now have 2 versions of.  Some platforms have not yet been
ported to the latest version and I need to keep using the
older one for those platforms until the porting is complete.

Sadly, I can't get this to work.

Here's what I have
   $ tree meta-amltd/packages/linux/
     meta-amltd/packages/linux/
     ├── linux-am_2.6.32.bb
     ├── linux-am_2.6.37.bb

   $ tree meta-cobra3530p60/packages/linux/
     meta-cobra3530p60/packages/linux/
     ├── linux-am-2.6.32
     │   └── cobra3530p60
     │       ├── cobra3530p60.patch
     │       └── defconfig
     ├── linux-am_2.6.32.bbappend

I tried these settings in my machine/cobra3530p60
   PREFERRED_PROVIDER_virtual/kernel = "linux-am"
   PREFERRED_VERSION_virtual/kernel = "2.6.32"

However, it still wants to build version 2.6.37

What am I missing?  How can I force it to use the 2.6.32 version
for this machine?

Thanks

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------

Re: kernel versions

[Gary Thomas]

On 02/21/2011 08:52 AM, Gary Thomas wrote:
> I have my own kernel recipes (historical reasons...) which I
> now have 2 versions of. Some platforms have not yet been
> ported to the latest version and I need to keep using the
> older one for those platforms until the porting is complete.
>
> Sadly, I can't get this to work.
>
> Here's what I have
> $ tree meta-amltd/packages/linux/
> meta-amltd/packages/linux/
> ├── linux-am_2.6.32.bb
> ├── linux-am_2.6.37.bb

For clarity, this is my distribution which is layered on Poky

> $ tree meta-cobra3530p60/packages/linux/
> meta-cobra3530p60/packages/linux/
> ├── linux-am-2.6.32
> │ └── cobra3530p60
> │ ├── cobra3530p60.patch
> │ └── defconfig
> ├── linux-am_2.6.32.bbappend

This is one of my platform/machine layers

>
> I tried these settings in my machine/cobra3530p60
> PREFERRED_PROVIDER_virtual/kernel = "linux-am"
> PREFERRED_VERSION_virtual/kernel = "2.6.32"
>
> However, it still wants to build version 2.6.37
>
> What am I missing? How can I force it to use the 2.6.32 version
> for this machine?
>
> Thanks
>

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------

Re: kernel versions

[Richard Purdie]

On Mon, 2011-02-21 at 08:52 -0700, Gary Thomas wrote:
> I have my own kernel recipes (historical reasons...) which I
> now have 2 versions of.  Some platforms have not yet been
> ported to the latest version and I need to keep using the
> older one for those platforms until the porting is complete.
> 
> Sadly, I can't get this to work.
> 
> Here's what I have
>    $ tree meta-amltd/packages/linux/
>      meta-amltd/packages/linux/
>      ├── linux-am_2.6.32.bb
>      ├── linux-am_2.6.37.bb
> 
>    $ tree meta-cobra3530p60/packages/linux/
>      meta-cobra3530p60/packages/linux/
>      ├── linux-am-2.6.32
>      │   └── cobra3530p60
>      │       ├── cobra3530p60.patch
>      │       └── defconfig
>      ├── linux-am_2.6.32.bbappend
> 
> I tried these settings in my machine/cobra3530p60
>    PREFERRED_PROVIDER_virtual/kernel = "linux-am"
>    PREFERRED_VERSION_virtual/kernel = "2.6.32"
> 
> However, it still wants to build version 2.6.37
> 
> What am I missing?  How can I force it to use the 2.6.32 version
> for this machine?

PREFERRED_VERSION_linux-am = "2.6.32"

?

Cheers,

Richard

Re: kernel versions

[Gary Thomas]

On 02/21/2011 10:41 AM, Richard Purdie wrote:
> On Mon, 2011-02-21 at 08:52 -0700, Gary Thomas wrote:
>> I have my own kernel recipes (historical reasons...) which I
>> now have 2 versions of.  Some platforms have not yet been
>> ported to the latest version and I need to keep using the
>> older one for those platforms until the porting is complete.
>>
>> Sadly, I can't get this to work.
>>
>> Here's what I have
>>     $ tree meta-amltd/packages/linux/
>>       meta-amltd/packages/linux/
>>       ├── linux-am_2.6.32.bb
>>       ├── linux-am_2.6.37.bb
>>
>>     $ tree meta-cobra3530p60/packages/linux/
>>       meta-cobra3530p60/packages/linux/
>>       ├── linux-am-2.6.32
>>       │   └── cobra3530p60
>>       │       ├── cobra3530p60.patch
>>       │       └── defconfig
>>       ├── linux-am_2.6.32.bbappend
>>
>> I tried these settings in my machine/cobra3530p60
>>     PREFERRED_PROVIDER_virtual/kernel = "linux-am"
>>     PREFERRED_VERSION_virtual/kernel = "2.6.32"
>>
>> However, it still wants to build version 2.6.37
>>
>> What am I missing?  How can I force it to use the 2.6.32 version
>> for this machine?
>
> PREFERRED_VERSION_linux-am = "2.6.32"

That does seem to work, but only if I put it in the <MACHINE>.conf
file, not local.conf.

Why specify it one way (PREFERRED_PROVIDER_virtual/kernel) for the provider
(recipe basis) and then a different way (PREFERRED_VERSION_linux-am) for
the actual version?

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------

Re: kernel versions

[Richard Purdie]

On Mon, 2011-02-21 at 11:31 -0700, Gary Thomas wrote:
> On 02/21/2011 10:41 AM, Richard Purdie wrote:
> > On Mon, 2011-02-21 at 08:52 -0700, Gary Thomas wrote:
> >> I have my own kernel recipes (historical reasons...) which I
> >> now have 2 versions of.  Some platforms have not yet been
> >> ported to the latest version and I need to keep using the
> >> older one for those platforms until the porting is complete.
> >>
> >> Sadly, I can't get this to work.
> >>
> >> Here's what I have
> >>     $ tree meta-amltd/packages/linux/
> >>       meta-amltd/packages/linux/
> >>       ├── linux-am_2.6.32.bb
> >>       ├── linux-am_2.6.37.bb
> >>
> >>     $ tree meta-cobra3530p60/packages/linux/
> >>       meta-cobra3530p60/packages/linux/
> >>       ├── linux-am-2.6.32
> >>       │   └── cobra3530p60
> >>       │       ├── cobra3530p60.patch
> >>       │       └── defconfig
> >>       ├── linux-am_2.6.32.bbappend
> >>
> >> I tried these settings in my machine/cobra3530p60
> >>     PREFERRED_PROVIDER_virtual/kernel = "linux-am"
> >>     PREFERRED_VERSION_virtual/kernel = "2.6.32"
> >>
> >> However, it still wants to build version 2.6.37
> >>
> >> What am I missing?  How can I force it to use the 2.6.32 version
> >> for this machine?
> >
> > PREFERRED_VERSION_linux-am = "2.6.32"
> 
> That does seem to work, but only if I put it in the <MACHINE>.conf
> file, not local.conf.
> 
> Why specify it one way (PREFERRED_PROVIDER_virtual/kernel) for the provider
> (recipe basis) and then a different way (PREFERRED_VERSION_linux-am) for
> the actual version?

Each recipe has a list of things it provides. This is usually PN but in
the kernel case each recipe provides "virtual/kernel" so we can group
them and make a selection with PREFERRED_PROVIDER.

Bitbake first determines the provider. Once it has this it looks up the
version. It looks this up using PN and not using what could be an
arbitrary list of items in PROVIDES.

Summary, you always use PN with PREFERRED_VERSION as that is what makes
sense in the general case.

It should however work to put this in local.conf unless you're setting
it with an = and not a ?= somewhere else?

Cheers,

Richard

Re: kernel versions

[Gary Thomas]

On 02/21/2011 04:16 PM, Richard Purdie wrote:
> On Mon, 2011-02-21 at 11:31 -0700, Gary Thomas wrote:
>> On 02/21/2011 10:41 AM, Richard Purdie wrote:
>>> On Mon, 2011-02-21 at 08:52 -0700, Gary Thomas wrote:
>>>> I have my own kernel recipes (historical reasons...) which I
>>>> now have 2 versions of.  Some platforms have not yet been
>>>> ported to the latest version and I need to keep using the
>>>> older one for those platforms until the porting is complete.
>>>>
>>>> Sadly, I can't get this to work.
>>>>
>>>> Here's what I have
>>>>      $ tree meta-amltd/packages/linux/
>>>>        meta-amltd/packages/linux/
>>>>        ├── linux-am_2.6.32.bb
>>>>        ├── linux-am_2.6.37.bb
>>>>
>>>>      $ tree meta-cobra3530p60/packages/linux/
>>>>        meta-cobra3530p60/packages/linux/
>>>>        ├── linux-am-2.6.32
>>>>        │   └── cobra3530p60
>>>>        │       ├── cobra3530p60.patch
>>>>        │       └── defconfig
>>>>        ├── linux-am_2.6.32.bbappend
>>>>
>>>> I tried these settings in my machine/cobra3530p60
>>>>      PREFERRED_PROVIDER_virtual/kernel = "linux-am"
>>>>      PREFERRED_VERSION_virtual/kernel = "2.6.32"
>>>>
>>>> However, it still wants to build version 2.6.37
>>>>
>>>> What am I missing?  How can I force it to use the 2.6.32 version
>>>> for this machine?
>>>
>>> PREFERRED_VERSION_linux-am = "2.6.32"
>>
>> That does seem to work, but only if I put it in the<MACHINE>.conf
>> file, not local.conf.
>>
>> Why specify it one way (PREFERRED_PROVIDER_virtual/kernel) for the provider
>> (recipe basis) and then a different way (PREFERRED_VERSION_linux-am) for
>> the actual version?
>
> Each recipe has a list of things it provides. This is usually PN but in
> the kernel case each recipe provides "virtual/kernel" so we can group
> them and make a selection with PREFERRED_PROVIDER.
>
> Bitbake first determines the provider. Once it has this it looks up the
> version. It looks this up using PN and not using what could be an
> arbitrary list of items in PROVIDES.
>
> Summary, you always use PN with PREFERRED_VERSION as that is what makes
> sense in the general case.

Understood.  Thanks for the explanation.

> It should however work to put this in local.conf unless you're setting
> it with an = and not a ?= somewhere else?

I'm not sure what happened there - this was the real crux of my question
as earlier I had tried an override with PREFERRED_VERSION_linux-am in
local.conf and it ignored me.  I can't duplicate that problem now.

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------

kernel versions

[Tobin C. Harding]

Recently the kernel version on the github
repository did not match up with the master branch of

https://kernel.googlesource.com/pub/scm/linux/kernel/git/powerpc/linux

Specifically, github was hosting v4.10-rc5 while master had
v4.10-rc8. All the while Linus' mainline was at v4.11-rc1.

Was this an anomaly or is there a technical reason please? While
writing this I see that perhaps I should have checked the other
branches (fixes, next, test).

thanks,
Tobin.

Re: kernel versions

[Daniel Axtens]

Hi Tobin,

> Recently the kernel version on the github
> repository did not match up with the master branch of
>
> https://kernel.googlesource.com/pub/scm/linux/kernel/git/powerpc/linux
>
> Specifically, github was hosting v4.10-rc5 while master had
> v4.10-rc8. All the while Linus' mainline was at v4.11-rc1.
>
> Was this an anomaly or is there a technical reason please? While
> writing this I see that perhaps I should have checked the other
> branches (fixes, next, test).

These are all managed by different people, and none of them are managed
by any of the linuxppc-dev folk.

Sorry I can't be more helpful.

Regards,
Daniel

>
> thanks,
> Tobin.