[parisc-linux] 2.6 & pdc_console pb on c110: "Warning: unable to open an initial console."

[parisc-linux] 2.6 & pdc_console pb on c110: "Warning: unable to open an initial console."

[Joel Soete]

Hi all,

I try to see if pdc_console could be operational on my c110 with kernel 2.6.0-pa5.

So I uncheck serial_mux and check pdc_console with make menuconfig (edit also pdc_cons.c to define EARLY_BOOTUP_DEBUG)
Then I create the special file "mknod /dev/ttyB0 c 11 0", add "TB0:12345:respawn:/sbin/getty 38400 ttyB0" in /etc/inittab

(I also try to apply Richard patch <http://lists.parisc-linux.org/pipermail/parisc-linux/2002-May/016384.html>)

But no way to make it works?

Linux version 2.6.0-pa5 (root@hpalin) (gcc version 3.3.3 20031206 (prerelease) 3FP[0] enabled: Rev 1 Model 11 
                               The 32-bit Kernel has started...
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 000058e0 00000481 00000000 00000002 77e47570 100000f1 00000004 0000008a 0avers  0000000d
CPUID vers 11 rev 13 (0x0000016d)
model 9000/777/C110
Total Memory: 128 Mb
[snip]
Soft power switch enabled, polling @ 0xf0140000.
Console: switching to colour frame buffer device 128x48
pty: 256 Unix98 ptys configured
lp: driver loaded but no devices found
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
ttyS0 at MMIO 0xffd05800 (irq = 90) is a 16550A
ttyS1 at MMIO 0xffe02800 (irq = 121) is a 16550A
[snip]
Freeing unused kernel memory: 504k freed
Warning: unable to open an initial console.
Adding 131832k swap on /dev/md1.  Priority:-1 extents:1
EXT3 FS on md2, internal journal
[snip]
....eth0: link ok.

Debian GNU/Linux testing/unstable hpalin ttyS0

hpalin login:

In th syslog I also notice:
[snip]
Dec 27 21:45:03 hpalin init: Id "TB0" respawning too fast: disabled for 5 minutes
Dec 27 21:52:15 hpalin init: Id "TB0" respawning too fast: disabled for 5 minutes
[snip]

And don't find any such device with:
# cat /proc/devices
Character devices:
   1 mem
   2 pty
   3 ttyp
   4 /dev/vc/0
   4 tty
   4 ttyS
   5 /dev/tty
   5 /dev/console
   5 /dev/ptmx
   6 lp
   7 vcs
   9 st
  10 misc
  13 input
  14 sound
  21 sg
  29 fb
  36 netlink
128 ptm
136 pts
180 usb
[snip]

Any idea? (what should I do wrongly?)

Thanks in advance for attention,
	Joel

Re: [parisc-linux] 2.6 & pdc_console pb on c110: "Warning: unable to open an initial console."

[Helge Deller]

On Saturday 27 December 2003 22:00, Joel Soete wrote:
> I try to see if pdc_console could be operational on my c110 with kernel 2.6.0-pa5.
> 
> So I uncheck serial_mux and check pdc_console with make menuconfig (edit also pdc_cons.c to define EARLY_BOOTUP_DEBUG)
> Then I create the special file "mknod /dev/ttyB0 c 11 0", add "TB0:12345:respawn:/sbin/getty 38400 ttyB0" in /etc/inittab
> 
> (I also try to apply Richard patch <http://lists.parisc-linux.org/pipermail/parisc-linux/2002-May/016384.html>)
> 
> But no way to make it works?
> 
> Linux version 2.6.0-pa5 (root@hpalin) (gcc version 3.3.3 20031206 (prerelease) 3FP[0] enabled: Rev 1 Model 11 
>                                The 32-bit Kernel has started...
> Initialized PDC Console for debugging.
> Determining PDC firmware type: System Map.
> model 000058e0 00000481 00000000 00000002 77e47570 100000f1 00000004 0000008a 0avers  0000000d
> CPUID vers 11 rev 13 (0x0000016d)
> model 9000/777/C110
> Total Memory: 128 Mb
> [snip]
> Soft power switch enabled, polling @ 0xf0140000.
> Console: switching to colour frame buffer device 128x48
> pty: 256 Unix98 ptys configured
> lp: driver loaded but no devices found
> Generic RTC Driver v1.07
> Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
> ttyS0 at MMIO 0xffd05800 (irq = 90) is a 16550A
> ttyS1 at MMIO 0xffe02800 (irq = 121) is a 16550A

Your machine has standard serial ports. So why do you want to
switch on serial_mux stuff when it's not needed (and not possible
since the device is not present in your machine) ?

Helge

Re: [parisc-linux] 2.6 & pdc_console pb on c110: "Warning: unable to open an initial console."

[Joel Soete]

Helge Deller wrote:
> On Saturday 27 December 2003 22:00, Joel Soete wrote:
> 
>>I try to see if pdc_console could be operational on my c110 with kernel 2.6.0-pa5.
>>
>>So I uncheck serial_mux and check pdc_console with make menuconfig (edit also pdc_cons.c to define EARLY_BOOTUP_DEBUG)
>>Then I create the special file "mknod /dev/ttyB0 c 11 0", add "TB0:12345:respawn:/sbin/getty 38400 ttyB0" in /etc/inittab
>>
>>(I also try to apply Richard patch <http://lists.parisc-linux.org/pipermail/parisc-linux/2002-May/016384.html>)
>>
>>But no way to make it works?
>>
>>Linux version 2.6.0-pa5 (root@hpalin) (gcc version 3.3.3 20031206 (prerelease) 3FP[0] enabled: Rev 1 Model 11 
>>                               The 32-bit Kernel has started...
>>Initialized PDC Console for debugging.
>>Determining PDC firmware type: System Map.
>>model 000058e0 00000481 00000000 00000002 77e47570 100000f1 00000004 0000008a 0avers  0000000d
>>CPUID vers 11 rev 13 (0x0000016d)
>>model 9000/777/C110
>>Total Memory: 128 Mb
>>[snip]
>>Soft power switch enabled, polling @ 0xf0140000.
>>Console: switching to colour frame buffer device 128x48
>>pty: 256 Unix98 ptys configured
>>lp: driver loaded but no devices found
>>Generic RTC Driver v1.07
>>Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
>>ttyS0 at MMIO 0xffd05800 (irq = 90) is a 16550A
>>ttyS1 at MMIO 0xffe02800 (irq = 121) is a 16550A
> 
> 
> Your machine has standard serial ports. So why do you want to
> switch on serial_mux stuff when it's not needed (and not possible
> since the device is not present in your machine) ?
> 
> Helge
> 
Helge,

Sorry I don't understand: where do you read that I switch on serial mux?

My goal is to test pdc_console mainly for EARLY_BOOTUP_DEBUG facility (for later b2k 64bit kernel pb).
Also afaik otc I have to switch off serial mux (well i say uncheck):
drivers/serial/Kconfig
[snip]
config PDC_CONSOLE
         bool "PDC software console support"
         depends on PARISC && !SERIAL_MUX && VT
         default n
[snip]?

Thanks in advance for more info,
	Joel

Re: [parisc-linux] 2.6 & pdc_console pb on c110: "Warning: unable to open an initial console."

[Helge Deller]

On Sunday 28 December 2003 19:02, Joel Soete wrote:
> My goal is to test pdc_console mainly for EARLY_BOOTUP_DEBUG facility (for later b2k 64bit kernel pb).
> Also afaik otc I have to switch off serial mux (well i say uncheck):
> drivers/serial/Kconfig
> [snip]
> config PDC_CONSOLE
>          bool "PDC software console support"
>          depends on PARISC && !SERIAL_MUX && VT
>          default n
> [snip]?

To debug such problems I often just turn on EARLY_BOOTUP_DEBUG 
in arch/parisc/kernel/pdc_cons.c, line 15:

/* Define EARLY_BOOTUP_DEBUG to debug kernel related boot problems.
 * On production kernels EARLY_BOOTUP_DEBUG should be undefined. */
#define EARLY_BOOTUP_DEBUG

HTH,
Helge

Re: [parisc-linux] 2.6 & pdc_console pb on c110: "Warning: unable to open an initial console."

[Christoph Plattner]

Anyway, the PDC driver should work for all architectures, independent of
the serial type (this was my concept of this driver).

Is the driver fully ported to the 2.6 kernel ?
In the first log, the line "Warning: unable to open an initial console."
was shown, so the open on this device fails !
Futher there is no PDC driver registered under proc/devices !

I have never tested a 2.6 kernel on a HP.

Christoph


Helge Deller wrote:
> On Saturday 27 December 2003 22:00, Joel Soete wrote:
> 
>>I try to see if pdc_console could be operational on my c110 with kernel 2.6.0-pa5.
>>
>>So I uncheck serial_mux and check pdc_console with make menuconfig (edit also pdc_cons.c to define EARLY_BOOTUP_DEBUG)
>>Then I create the special file "mknod /dev/ttyB0 c 11 0", add "TB0:12345:respawn:/sbin/getty 38400 ttyB0" in /etc/inittab
>>
>>(I also try to apply Richard patch <http://lists.parisc-linux.org/pipermail/parisc-linux/2002-May/016384.html>)
>>
>>But no way to make it works?
>>
>>Linux version 2.6.0-pa5 (root@hpalin) (gcc version 3.3.3 20031206 (prerelease) 3FP[0] enabled: Rev 1 Model 11 
>>                               The 32-bit Kernel has started...
>>Initialized PDC Console for debugging.
>>Determining PDC firmware type: System Map.
>>model 000058e0 00000481 00000000 00000002 77e47570 100000f1 00000004 0000008a 0avers  0000000d
>>CPUID vers 11 rev 13 (0x0000016d)
>>model 9000/777/C110
>>Total Memory: 128 Mb
>>[snip]
>>Soft power switch enabled, polling @ 0xf0140000.
>>Console: switching to colour frame buffer device 128x48
>>pty: 256 Unix98 ptys configured
>>lp: driver loaded but no devices found
>>Generic RTC Driver v1.07
>>Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
>>ttyS0 at MMIO 0xffd05800 (irq = 90) is a 16550A
>>ttyS1 at MMIO 0xffe02800 (irq = 121) is a 16550A
> 
> 
> Your machine has standard serial ports. So why do you want to
> switch on serial_mux stuff when it's not needed (and not possible
> since the device is not present in your machine) ?
> 
> Helge
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 



-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at

Re: [parisc-linux] 2.6 & pdc_console pb on c110: "Warning: unable to open an initial console."

[Joel Soete]

Hello Christoph,

>
>Anyway, the PDC driver should work for all architectures, independent of
>the serial type (this was my concept of this driver).
>
>Is the driver fully ported to the 2.6 kernel ?
>In the first log, the line "Warning: unable to open an initial console."
>was shown, so the open on this device fails !
>Futher there is no PDC driver registered under proc/devices !

That a better explanation ;) (afaik there are some changes from 2.4 to 2.6
driver's implementation and also some paper about the subject, I will see)

>I have never tested a 2.6 kernel on a HP.

Another question: I also try it with 2.4 (32 or 64 bit kernel) running on
a b2k.
But this b2k is equiped with an ide cdrom and when I try to boot a kernel
with builtin pdc driver (2.4 and 2.6), the boot process hung (the green led
of the cdrom stay continuously bright, so it seems a pb of initialization
in the pdc_console driver?. This pb also occurs even if I unplug the cdrom-drive
or remove ide-cdrom driver from kernels. otc kernels boot well with builtin
ide-cdrom driver without pdc_console driver)

Any other idea?

Thanks again,
    Joel




Christoph


Helge Deller wrote:
> On Saturday 27 December 2003 22:00, Joel Soete wrote:
> 
>
>>I try to see if pdc_console could be operational on my c110 with kernel
2.6.0-pa5.
>>
>>So I uncheck serial_mux and check pdc_console with make menuconfig (edit
also pdc_cons.c to define EARLY_BOOTUP_DEBUG)
>>Then I create the special file "mknod
>/dev/ttyB0 c 11 0", add "TB0:12345:respawn:/sbin/getty 38400 ttyB0" in /etc/inittab
>>
>>(I also try to apply Richard patch <http://lists.parisc-linux.org/pipermail/parisc-linux/2002-May/016384.html>)
>>
>>But no way to make it works?
>>
>>Linux 
>ersion 2.6.0-pa5 (root@hpalin) (gcc version 3.3.3 20031206 (prerelease)
3FP[0] enabled: Rev 1 Model 11 
>>                               The 32-bit Kernel has started...
>>Initialized PDC Console for debugging.
>>Determining PDC firmware type: Syste
> Map.
>>model 000058e0 00000481 00000000 00000002 77e47570 100000f1 00000004 0000008a
0avers  0000000d
>>CPUID vers 11 rev 13 (0x0000016d)
>>model 9000/777/C110
>>Total Memory: 128 Mb
>>[snip]
>>Soft power switch enabled, polling @ 0xf0140000.
>
>Console: switching to colour frame buffer device 128x48
>>pty: 256 Unix98 ptys configured
>>lp: driver loaded but no devices found
>>Generic RTC Driver v1.07
>>Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
>>ttyS0 at MM
>O 0xffd05800 (irq = 90) is a 16550A
>>ttyS1 at MMIO 0xffe02800 (irq = 121) is a 16550A
> 
> 
> Your machine has standard serial ports. So why do you want to
> switch on serial_mux stuff when it's not needed (and not possible
> since the device is
>not present in your machine) ?
> 
> Helge
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 
> 



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------
>------------------------------------------------
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company:	christoph.plattner@alcatel.at

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Re: [parisc-linux] 2.6 & pdc_console pb on c110: "Warning: unable to open an initial console."

[Christoph Plattner]

Hello,

sorry  have no idea for the hang up on boot!
BUT: experiments with the MUX driver has show, that
using not ttyB0 (but 1,2...) there system also
hangs up.
BUT: This is no explanation for this problem here.
The PDC console driver calls the "BIOS-like" routines
for printing out (and polling keys !).
All the "printk()" are printed directly (without my
PDC console driver), and everything running via
"/dev/console" or "/dev/ttyB0" goes through the
driver. Is the kernel so far, that an `open(
"/dev/console"' is already called (just done in
kernel before calling "/sbin/init" or "/bin/sh") ?

Christoph


Joel Soete wrote:
> Hello Christoph,
> 
> 
>>Anyway, the PDC driver should work for all architectures, independent of
>>the serial type (this was my concept of this driver).
>>
>>Is the driver fully ported to the 2.6 kernel ?
>>In the first log, the line "Warning: unable to open an initial console."
>>was shown, so the open on this device fails !
>>Futher there is no PDC driver registered under proc/devices !
> 
> 
> That a better explanation ;) (afaik there are some changes from 2.4 to 2.6
> driver's implementation and also some paper about the subject, I will see)
> 
> 
>>I have never tested a 2.6 kernel on a HP.
> 
> 
> Another question: I also try it with 2.4 (32 or 64 bit kernel) running on
> a b2k.
> But this b2k is equiped with an ide cdrom and when I try to boot a kernel
> with builtin pdc driver (2.4 and 2.6), the boot process hung (the green led
> of the cdrom stay continuously bright, so it seems a pb of initialization
> in the pdc_console driver?. This pb also occurs even if I unplug the cdrom-drive
> or remove ide-cdrom driver from kernels. otc kernels boot well with builtin
> ide-cdrom driver without pdc_console driver)
> 
> Any other idea?
> 
> Thanks again,
>     Joel
> 
> 
> 
> 
> Christoph
> 
> 
> Helge Deller wrote:
> 
>>On Saturday 27 December 2003 22:00, Joel Soete wrote:
>>
>>
>>
>>>I try to see if pdc_console could be operational on my c110 with kernel
>>
> 2.6.0-pa5.
> 
>>>So I uncheck serial_mux and check pdc_console with make menuconfig (edit
>>
> also pdc_cons.c to define EARLY_BOOTUP_DEBUG)
> 
>>>Then I create the special file "mknod
>>
>>/dev/ttyB0 c 11 0", add "TB0:12345:respawn:/sbin/getty 38400 ttyB0" in /etc/inittab
>>
>>>(I also try to apply Richard patch <http://lists.parisc-linux.org/pipermail/parisc-linux/2002-May/016384.html>)
>>>
>>>But no way to make it works?
>>>
>>>Linux 
>>
>>ersion 2.6.0-pa5 (root@hpalin) (gcc version 3.3.3 20031206 (prerelease)
> 
> 3FP[0] enabled: Rev 1 Model 11 
> 
>>>                              The 32-bit Kernel has started...
>>>Initialized PDC Console for debugging.
>>>Determining PDC firmware type: Syste
>>
>>Map.
>>
>>>model 000058e0 00000481 00000000 00000002 77e47570 100000f1 00000004 0000008a
>>
> 0avers  0000000d
> 
>>>CPUID vers 11 rev 13 (0x0000016d)
>>>model 9000/777/C110
>>>Total Memory: 128 Mb
>>>[snip]
>>>Soft power switch enabled, polling @ 0xf0140000.
>>
>>Console: switching to colour frame buffer device 128x48
>>
>>>pty: 256 Unix98 ptys configured
>>>lp: driver loaded but no devices found
>>>Generic RTC Driver v1.07
>>>Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
>>>ttyS0 at MM
>>
>>O 0xffd05800 (irq = 90) is a 16550A
>>
>>>ttyS1 at MMIO 0xffe02800 (irq = 121) is a 16550A
>>
>>
>>Your machine has standard serial ports. So why do you want to
>>switch on serial_mux stuff when it's not needed (and not possible
>>since the device is
>>not present in your machine) ?
>>
>>Helge
>>_______________________________________________
>>parisc-linux mailing list
>>parisc-linux@lists.parisc-linux.org
>>http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
>>
>>
> 
> 
> 
> 



-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at

Re: [parisc-linux] 2.6 & pdc_console pb on c110: "Warning: unable to open an initial console."

[Ryan Bradetich]

Joel,

Even though you should not need the pdc_console for what you want to do,
pdc_console should work in theory.  It probably needs to be updated to
work with the 2.6 kernel.  I will add this to my TODO list.

Thanks,

- Ryan


On Sat, 2003-12-27 at 14:00, Joel Soete wrote:
> Hi all,
> 
> I try to see if pdc_console could be operational on my c110 with kernel 2.6.0-pa5.
> 
> So I uncheck serial_mux and check pdc_console with make menuconfig (edit also pdc_cons.c to define EARLY_BOOTUP_DEBUG)
> Then I create the special file "mknod /dev/ttyB0 c 11 0", add "TB0:12345:respawn:/sbin/getty 38400 ttyB0" in /etc/inittab
> 
> (I also try to apply Richard patch <http://lists.parisc-linux.org/pipermail/parisc-linux/2002-May/016384.html>)
> 
> But no way to make it works?
> 
> Linux version 2.6.0-pa5 (root@hpalin) (gcc version 3.3.3 20031206 (prerelease) 3FP[0] enabled: Rev 1 Model 11 
>                                The 32-bit Kernel has started...
> Initialized PDC Console for debugging.
> Determining PDC firmware type: System Map.
> model 000058e0 00000481 00000000 00000002 77e47570 100000f1 00000004 0000008a 0avers  0000000d
> CPUID vers 11 rev 13 (0x0000016d)
> model 9000/777/C110
> Total Memory: 128 Mb
> [snip]
> Soft power switch enabled, polling @ 0xf0140000.
> Console: switching to colour frame buffer device 128x48
> pty: 256 Unix98 ptys configured
> lp: driver loaded but no devices found
> Generic RTC Driver v1.07
> Serial: 8250/16550 driver $Revision: 1.90 $ 13 ports, IRQ sharing enabled
> ttyS0 at MMIO 0xffd05800 (irq = 90) is a 16550A
> ttyS1 at MMIO 0xffe02800 (irq = 121) is a 16550A
> [snip]
> Freeing unused kernel memory: 504k freed
> Warning: unable to open an initial console.
> Adding 131832k swap on /dev/md1.  Priority:-1 extents:1
> EXT3 FS on md2, internal journal
> [snip]
> ....eth0: link ok.
> 
> Debian GNU/Linux testing/unstable hpalin ttyS0
> 
> hpalin login:
> 
> In th syslog I also notice:
> [snip]
> Dec 27 21:45:03 hpalin init: Id "TB0" respawning too fast: disabled for 5 minutes
> Dec 27 21:52:15 hpalin init: Id "TB0" respawning too fast: disabled for 5 minutes
> [snip]
> 
> And don't find any such device with:
> # cat /proc/devices
> Character devices:
>    1 mem
>    2 pty
>    3 ttyp
>    4 /dev/vc/0
>    4 tty
>    4 ttyS
>    5 /dev/tty
>    5 /dev/console
>    5 /dev/ptmx
>    6 lp
>    7 vcs
>    9 st
>   10 misc
>   13 input
>   14 sound
>   21 sg
>   29 fb
>   36 netlink
> 128 ptm
> 136 pts
> 180 usb
> [snip]
> 
> Any idea? (what should I do wrongly?)
> 
> Thanks in advance for attention,
> 	Joel
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux
> 

Re: [parisc-linux] 2.6 & pdc_console pb on c110: "Warning: unable to open an initial console."

[Joel Soete]

Hi Ryan,



Ryan Bradetich wrote:
> Joel,
> 
> Even though you should not need the pdc_console for what you want to do,

Well, I had the opportunity to test pdc_console on my b2k but as well as in 2.4 it make hung the kernel at boot time:
the cdrom green led stay continuously lighted (if I add or remove ide-cdrom support in the kernel)
Unfortunately I never reach to get any relevant toc info to go further in this pb invetigation :(. Now basicaly 2.6 is running on 
this system and so I will try to add some printk() to locate more accurately this event.

> pdc_console should work in theory.  It probably needs to be updated to
> work with the 2.6 kernel.  I will add this to my TODO list.
> 
Ah ok I will waiting some news so.

Thanks also and happy new year,
	Joel