2.6.25-rc1 on Sun Ultra 40

2.6.25-rc1 on Sun Ultra 40

[Jasper Bryant-Greene]

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I have been attempting to test 2.6.25-rc1 on my Sun Ultra 40 (two
dual-core Opteron 2222 CPUs).

There is some issue with the HPET clocksource which causes it to hang
the boot process if enabled, which I will look into in due course (the
HPET works fine on at least 2.6.19).

More pressing is that the system will not boot at all even with HPET
disabled - kernel gets no further than "NET: Registered protocol family
2".

I cannot think of a way to find out what the problem is, because the
system has only USB ports, and the USB keyboard is not working at this
stage, either because the system has locked up hard, or because the USB
support has not yet loaded (I tried both standard USB-HID and boot
protocol keyboard support, both compiled in). Thus I cannot use
magic-sysrq, or even scrollback to look at boot messages. There is also
no serial port to assist with the latter...

Any thoughts on a procedure for debugging this would be much
appreciated.

-j

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Re: 2.6.25-rc1 on Sun Ultra 40

[Jasper Bryant-Greene]

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I can confirm neither the boot hang with HPET enabled nor the other
unexplained boot hang after "NET: Registered protocol family 2" occur on
2.6.24.2 on the same hardware. I still don't have an appropriate way to
debug the issue on 2.6.25-rc1, though...

-j


On Thu, 2008-02-14 at 00:25 +1300, Jasper Bryant-Greene wrote:
> I have been attempting to test 2.6.25-rc1 on my Sun Ultra 40 (two
> dual-core Opteron 2222 CPUs).
> 
> There is some issue with the HPET clocksource which causes it to hang
> the boot process if enabled, which I will look into in due course (the
> HPET works fine on at least 2.6.19).
> 
> More pressing is that the system will not boot at all even with HPET
> disabled - kernel gets no further than "NET: Registered protocol family
> 2".
> 
> I cannot think of a way to find out what the problem is, because the
> system has only USB ports, and the USB keyboard is not working at this
> stage, either because the system has locked up hard, or because the USB
> support has not yet loaded (I tried both standard USB-HID and boot
> protocol keyboard support, both compiled in). Thus I cannot use
> magic-sysrq, or even scrollback to look at boot messages. There is also
> no serial port to assist with the latter...
> 
> Any thoughts on a procedure for debugging this would be much
> appreciated.
> 
> -j

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Re: 2.6.25-rc1 on Sun Ultra 40

[Yinghai Lu]

On Feb 13, 2008 11:04 AM, Jasper Bryant-Greene <jasper@unix.geek.nz> wrote:
> I can confirm neither the boot hang with HPET enabled nor the other
> unexplained boot hang after "NET: Registered protocol family 2" occur on
> 2.6.24.2 on the same hardware. I still don't have an appropriate way to
> debug the issue on 2.6.25-rc1, though...

boot message with debug in command line

also .config please

YH

Re: 2.6.25-rc1 on Sun Ultra 40

[Thomas Gleixner]

On Sun, 17 Feb 2008, Yinghai Lu wrote:
> On Feb 13, 2008 11:04 AM, Jasper Bryant-Greene <jasper@unix.geek.nz> wrote:
> > I can confirm neither the boot hang with HPET enabled nor the other
> > unexplained boot hang after "NET: Registered protocol family 2" occur on
> > 2.6.24.2 on the same hardware. I still don't have an appropriate way to
> > debug the issue on 2.6.25-rc1, though...
> 
> boot message with debug in command line
> 
> also .config please

Is there any new info on this ? Does the problem still exist with 25-rc7 ?

Thanks,
	tglx

Re: 2.6.25-rc1 on Sun Ultra 40

[Yinghai Lu]

On Fri, Mar 28, 2008 at 3:17 AM, Thomas Gleixner <tglx@linutronix.de> wrote:
>
> On Sun, 17 Feb 2008, Yinghai Lu wrote:
>  > On Feb 13, 2008 11:04 AM, Jasper Bryant-Greene <jasper@unix.geek.nz> wrote:
>  > > I can confirm neither the boot hang with HPET enabled nor the other
>  > > unexplained boot hang after "NET: Registered protocol family 2" occur on
>  > > 2.6.24.2 on the same hardware. I still don't have an appropriate way to
>  > > debug the issue on 2.6.25-rc1, though...
>  >
>  > boot message with debug in command line
>  >
>  > also .config please
>
>  Is there any new info on this ? Does the problem still exist with 25-rc7 ?

No response yet.

YH