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Re: [Ps2hacking-devel] CVS for kernel development (Re: Redboot even fails to load Linux-2.4 kernel)

[J.Brown (Ender/Amigo) <en...@en...>]

Why not use Sourceforge's CVS? If nobody wants to, I can setup a private
one as soon as I get a response to this message :)

Regards,	| If I must have computer systems with publically
	 Ender  | available terminals, the maps they display of my complex
  (James Brown)	| will have a room clearly marked as the Main Control Room.
		| That room will be the Execution Chamber. The actual main
		| control room will be marked as Sewage Overflow Containment.


> Could someone set up CVS repository next week? I feel ready to release
> source code after some cleanup and trivial fix is done,
>
> --- Takahide HIGUCHI  e-mail: tak...@hi...
>
> _______________________________________________
> Ps2hacking-devel mailing list
> Ps2...@li...
> http://lists.sourceforge.net/lists/listinfo/ps2hacking-devel
>

[Ps2hacking-devel] CVS for kernel development (Re: Redboot even fails to load Linux-2.4 kernel)

[Takahide H. <tak...@hi...>]

Hi,

|>
|> BTW, is anyone also working on Linux-2.4 kernel?
|
|I'm working too.
|

I feel happy to find you on this list :P)
what is current status of your kernel, gotom?

As for me, MMU initialization seems okay but
kernel_thread(init,...)  does not take effects because timer interrupt
does not reach to the scheduler.  It is probably because I have linked
wrong time_init() function.


|IMHO, to develop using CVS is nice idea.
|I welcome to start with co-development.
|Any comments?
|

I agree.  The kernel should somehow get working soon. then we all can
enjoy hacking in parallel :) with CVS.

Could someone set up CVS repository next week? I feel ready to release
source code after some cleanup and trivial fix is done,

--- Takahide HIGUCHI  e-mail: tak...@hi...

Re: [Ps2hacking-devel] Redboot even fails to load Linux-2.4 kernel

[Takahide H. <tak...@hi...>]

Hello  Yaegashi-san,

Thank you very much for testing my binary image quickly and giving me
a useful comment.  The problem is solved!


|Thank you for playing with my software.  I greatly appreciate your
|feedback.  And I'm glad that I've found another PS2 Linux kernel
|hacker in Japan. :->
|

It's so cool that you did make redboot working on PS2. Your effort
makes kernel hacking much easier and boosts kernel development!!


|What is your network configuration?  My TFTP server is Linux 2.4.5
|with tulip NIC, and connected with PS2 via a cheap 10/100Mbps
|switching hub.


I was using 10Base-T half-duplex hub, SiS900 NIC on motherboard and 
TFTP server running on Linux-2.2.18pre21 (debian 2.2).
Today I replaced the hub with new one which can do 100Base-T then the
problem is solved! 

Packet analyzer (ethereal) shows that redboot stops to send TFTP ACK
packet after 2800 - 3300th TFTP DATA packets on my 10Base-T network. It
seems that kernel images of linux-2.2 did not hit this bug since they
are smaller than ones of linux-2.4. I guess that transmit queue
management in the ethernet driver of redboot has some problem
when transmit queue becomes full and transmitter gets busy at the same
time. ( I experienced similar situation in other project)



--- Takahide HIGUCHI  e-mail: tak...@hi...

Re: [Ps2hacking-devel] Redboot even fails to load Linux-2.4 kernel

[GOTO M. <go...@de...>]

Hi,

At Wed, 25 Jul 2001 19:05:17 +0900,
Takahide Higuchi wrote:
> I'm trying to run Linux-2.4.6 kernel on PS2. 
> I tried latest redboot (redboot.elf-010716) to load and boot it, then I
> found the problem that redboot seems to fail to load 2.4.6 image.

Great!

> The redboot start loading with the command 'load -m tftp vmlinux246',
> then my ethernet hub start blinking but stops in a second.
> and there is no response from redboot.

Lock up was occured?

> I think the problem is linux-2.4 specific because of following facts:
> 
>   o the redboot loads and boots /boot/vmlinux-2.2.1ps2 in the PS2Linux
>     kit and other images built with cross compiler.
>   o Boot loader in the PS2linux kit DVD disc loads my 2.4.6 kernel image
>     from Memory Cards. I see some dmesg on the screen.
>   o 2.4 ELF images have three entries in the program header, where 2.2
>     ELF images have two entries.
>
> I placed my (unfinished)vmlinux of 2.4.6 at:
> 
>  http://developer.hima.gr.jp/playstation2/vmlinux_246_0722.elf
> 
> Some (incomplete) dmesg will be on the screen if it successfully
> start booting.
> 
> I appreciate your help very much.
>
> BTW, is anyone also working on Linux-2.4 kernel?

I'm working too.

IMHO, to develop using CVS is nice idea.
I welcome to start with co-development.
Any comments?

-- gotom

Re: [Ps2hacking-devel] Redboot even fails to load Linux-2.4 kernel

[YAEGASHI T. <t...@ke...>]

Hello Higuchi,

Thank you for playing with my software.  I greatly appreciate your
feedback.  And I'm glad that I've found another PS2 Linux kernel
hacker in Japan. :->


In the article <200...@hi...>,
Takahide Higuchi <tak...@hi...> wrote:

> I'm trying to run Linux-2.4.6 kernel on PS2. 
> I tried latest redboot (redboot.elf-010716) to load and boot it, then I
> found the problem that redboot seems to fail to load 2.4.6 image.
> 
> The redboot start loading with the command 'load -m tftp vmlinux246',
> then my ethernet hub start blinking but stops in a second.
> and there is no response from redboot.
>
> I think the problem is linux-2.4 specific because of following facts:
> 
>   o the redboot loads and boots /boot/vmlinux-2.2.1ps2 in the PS2Linux
>     kit and other images built with cross compiler.
>   o Boot loader in the PS2linux kit DVD disc loads my 2.4.6 kernel image
>     from Memory Cards. I see some dmesg on the screen.
>   o 2.4 ELF images have three entries in the program header, where 2.2
>     ELF images have two entries.

Well it's probably RedBoot's problem, but your situation seems more
subtle.  I could see your vmlinux_246_0722.elf running with
redboot.elf-010716.  It halts with the message "entering
kernel_thread(init...)".

What is your network configuration?  My TFTP server is Linux 2.4.5
with tulip NIC, and connected with PS2 via a cheap 10/100Mbps
switching hub.


> I placed my (unfinished)vmlinux of 2.4.6 at:
> 
>  http://developer.hima.gr.jp/playstation2/vmlinux_246_0722.elf
> 
> Some (incomplete) dmesg will be on the screen if it successfully
> start booting.

Great!


> BTW, is anyone also working on Linux-2.4 kernel?

I had been going to work on Linux 2.4 port, but unfortunately I have
no time for PS2 hacking now.

--
YAEGASHI Takeshi <t...@ke...> <ta...@ya...>

[Ps2hacking-devel] Redboot even fails to load Linux-2.4 kernel

[Takahide H. <tak...@hi...>]

Hi, hackers.

I'm trying to run Linux-2.4.6 kernel on PS2. 
I tried latest redboot (redboot.elf-010716) to load and boot it, then I
found the problem that redboot seems to fail to load 2.4.6 image.

The redboot start loading with the command 'load -m tftp vmlinux246',
then my ethernet hub start blinking but stops in a second.
and there is no response from redboot.

I think the problem is linux-2.4 specific because of following facts:

  o the redboot loads and boots /boot/vmlinux-2.2.1ps2 in the PS2Linux
    kit and other images built with cross compiler.
  o Boot loader in the PS2linux kit DVD disc loads my 2.4.6 kernel image
    from Memory Cards. I see some dmesg on the screen.
  o 2.4 ELF images have three entries in the program header, where 2.2
    ELF images have two entries.

I placed my (unfinished)vmlinux of 2.4.6 at:

 http://developer.hima.gr.jp/playstation2/vmlinux_246_0722.elf

Some (incomplete) dmesg will be on the screen if it successfully
start booting.

I appreciate your help very much.



BTW, is anyone also working on Linux-2.4 kernel?

--- Takahide Higuchi   e-mail: tak...@hi...

[Ps2hacking-devel] eCos/RedBoot update

[YAEGASHI T. <t...@ke...>]

Hello hackers,

As you are aware RedBoot's hardware initialization seems insufficient
for the Linux kernel, but I've finally fixed this.  The standard
/boot/vmlinux-2.2.1_ps2 should properly boot with the current
eCos/RedBoot.  Try out redboot.elf-010716.

In this release you should use the "exec" command instread of "go".
And note that any exec options like specifying kernel command line is
not implemented yet.

If you are still in trouble, please consult this list.

--
YAEGASHI Takeshi <t...@ke...> <ta...@ya...>

[Ps2hacking-devel] broken (funny) make in PS2 Linux Kit

[Oliver M . B. <ol...@go...>]

Moin.

I kept looking at my fakeroot problems that commands executed from a Makefile
where not properly "fakerooted" and came to the conclusion, that "make" which
comes with PS2 Linux Kit was somehow borken. It didn't pass the LD_PRELOAD
environment variable under all circumstances.
Compiling and installing Debian's make solved this.

# Anybody know where ptex is on the DVD? Can't find it and texi2dvi needs it.

-- 
	Oliver M. Bolzer
	ol...@go...

GPG (PGP) Fingerprint = 621B 52F6 2AC1 36DB 8761  018F 8786 87AD EF50 D1FF

[Ps2hacking-devel] (no subject)

[hata <bxf...@ni...>]

confirm 732881

Re: [Ps2hacking-devel] No source!

[YAEGASHI T. <t...@ke...>]

Hi,

In the article <200...@ke...>,
YAEGASHI Takeshi <t...@ke...> wrote:

> I've noticed that sources of some kernel modules are not provided by
> PS2 Linux kit.  They include:
> 
> 	/lib/modules/2.2.1_ps2/misc/ps2cdvd.o
> 	/lib/modules/2.2.1_ps2/misc/ps2mc.o
> 	/lib/modules/2.2.1_ps2/misc/ps2pad.o
> 	/lib/modules/2.2.1_ps2/misc/ps2sd.o
> 	/lib/modules/2.2.1_t10000/misc/ps2cdvd.o
> 	/lib/modules/2.2.1_t10000/misc/ps2mc.o
> 	/lib/modules/2.2.1_t10000/misc/ps2pad.o
> 	/lib/modules/2.2.1_t10000/misc/ps2sd.o
> 
> They are owned by kernel-modules-2.2.1_ps2-6 package and its SRPM has
> only tar'ed binaries.  It also has other binaries obviously under GPL,
> which may become the license problem.
> 
> This means that we cannot get the specs for some important devices.
> I'm afraid that this could discourage people's effort to port another
> kernel (including the latest Linux, BSD, eCos) to PS2 here and there.
> 
> I suppose there are more files without source in the kit.  I asked
> SCEI about this issue, hope I can get the answer in Monday.

I compeltely forget to report the particulars to this list.

I received the answer by mail from SCEI at June 29.  They admit there
are some kernel modules without sources in the PS2 Linux kit, and they
have no plan to release the sources.

As a result we won't have any CD dirve, memory card, controller, sound
devices on the new kernel.  This doesn't mean our effort is useless
immediately, but I'm sorry about that.

--
YAEGASHI Takeshi <t...@ke...> <ta...@ya...>

[Ps2hacking-devel] apt and fakeroot, beware of buggy PS2 Linux Kit

[Oliver M . B. <ol...@go...>]

Hi!

# It seems that only the usual members are on the list but I'll stick
# to English because all other messages in the archive are in English

Yesterday and today, I sat down and compiled apt and fakeroot. I found 
out some strange things.

1. Apt

  Compiled nicely out of the box and seemed to be working, except it
  complained when msync(2)ing to save pkgcache.bin . A strace shoewed
  that the arguments to msync(2) were correct (PAGESIZE boundary) so
  I assume the implementation of msync(2) was broken and got rid of
  that part in apt/apt-pkg/contrib/mmap.cc by checking for __R5900
  That's really ad-hoc. The problem is that mipsEEel doesnt' support
  seem to  msync(2) but still declaeds _POSIX_SYNCHRONIZED_IO, which is a
  POSIX violation.


2. fakeroot

  Compiled like it was a nice dream. But dream was dream. It barfed
  on rm during "make -C test". A little search revlealed that it was
  doing an endless loop in libfakeroot.c:unlink(). next_unlink() was
  calling libfakeroot's unlink() agin and that caused an segfault after
  30230 iterations on my machine. A dummy program doing just unlink()
  (together with open/close/lstat/fstat) worked fine. After not being
  able to figure the problem out, I compiled rm freshly from
  Debian's fileutils. That solved the problem, the new rm worked fine.
  I'm really puzzled as the old one didn't have any problem unless
  run in fakeroot. Maybe the old rm had been crosscompiled and had
  weired symbols ??

  fakeroot now passes "make -C check" but somthing still isn't right.
  "fakeroot dh_testroot" passes, but a dh_testroot inside debian/rules
  when called like "fakeroot debian/rules binary" doesn't.
  Also 
	perl -e 'print "a$<a"'
  gives correct uid's as a normal user aswell as root, but 
	fakeroot perl -e 'print "a$<a"'
  
  doesn't produce any output at all. Checking for $< is exactly what
  dh_testroot is doing. Anybody got any idea's ?

Also, I currently have  glibc-2.2.2-1, fileutils-4.1, dpkg-1.9.15, apt-0.5.3
as .debs . Plus a likely broken fakeroot-0.4.4


Happy Hacking!
 

 
 


-- 
	Oliver M. Bolzer
	ol...@go...

GPG (PGP) Fingerprint = 621B 52F6 2AC1 36DB 8761  018F 8786 87AD EF50 D1FF

[Ps2hacking-devel] eCos/RedBoot for PS2

[YAEGASHI T. <t...@ke...>]

Hi folks,

I've done with preliminary works for eCos/RedBoot on PlayStation 2.

Though I still have many things to be done to release the source code
as well as eCos/RedBoot on Dreamcast, you can get the binary and try
to download via Ethernet and exec your kernel on PS2.

	http://ps2hacking.sourceforge.net/

Have fun!

--
YAEGASHI Takeshi <t...@ke...> <ta...@ya...>

[Ps2hacking-devel] No source!

[YAEGASHI T. <t...@ke...>]

Hi,

I've noticed that sources of some kernel modules are not provided by
PS2 Linux kit.  They include:

	/lib/modules/2.2.1_ps2/misc/ps2cdvd.o
	/lib/modules/2.2.1_ps2/misc/ps2mc.o
	/lib/modules/2.2.1_ps2/misc/ps2pad.o
	/lib/modules/2.2.1_ps2/misc/ps2sd.o
	/lib/modules/2.2.1_t10000/misc/ps2cdvd.o
	/lib/modules/2.2.1_t10000/misc/ps2mc.o
	/lib/modules/2.2.1_t10000/misc/ps2pad.o
	/lib/modules/2.2.1_t10000/misc/ps2sd.o

They are owned by kernel-modules-2.2.1_ps2-6 package and its SRPM has
only tar'ed binaries.  It also has other binaries obviously under GPL,
which may become the license problem.

This means that we cannot get the specs for some important devices.
I'm afraid that this could discourage people's effort to port another
kernel (including the latest Linux, BSD, eCos) to PS2 here and there.

I suppose there are more files without source in the kit.  I asked
SCEI about this issue, hope I can get the answer in Monday.

--
YAEGASHI Takeshi <t...@ke...> <ta...@ya...>

[Ps2hacking-devel] ps2 hacking status

[YAEGASHI T. <t...@ke...>]

Hi there,

Here I'm writing the current status of my PS2 hacking.  Please let me
know what you've done and how do you think about what should we do
next.


Done:

I've built mipsEEel-linux toolchain debs for the cross developing
environment.  I could build vmlinux on an x86 box which is much faster
than PS2.

Now I'm trying to build Debian userland on PS2.  I've gotten several
mipsel debs including glibc-2.2.3, ncurses-5.2, bash-2.05.  Simple
programs seem to work, but bash doesn't work yet...

And I think small changes in dpkg's archtable is needed for dpkg to
recognize mipsEEel-linux as mipsel-linux.

All the deb I made are available at:

	http://ps2hacking.sourceforge.net/deb/.


Todo:

- Port eCos+RedBoot to shorten TAT for developing and testing.
- Port 2.4(or 2.5) series kernel.
- Build the latest Debian userland.
- More peripheral support(i.Link, etc.)

--
YAEGASHI Takeshi <t...@ke...> <ta...@ya...>