Re: NetBSD installation woes on Sun Blade 100

Sorry - I've bene traveling so I haven't had a chance to reply. SSIZE was 
set to 4 in the kernels I've made (and that I run, too).


On Mon, 13 Jul 2020, Connor McLaughlan wrote:

> Date: Mon, 13 Jul 2020 11:59:19 +0200
> From: Connor McLaughlan <[email protected]>
> To: Volker A. Brandt <[email protected]>
> Cc: [email protected]
> Subject: Re: NetBSD installation woes on Sun Blade 100
> 
> On Mon, Jul 13, 2020 at 10:54 AM Volker A. Brandt <[email protected]> wrote:
>>
>> Connor McLaughlan writes:
>>> But when i build a new kernel on this machine, i would not have the
>>> necessary patches for SSIZE, right?
>>> So how can i get my machine stable with netbsd?
>>
>> Do you have another machine (x86 PC, maybe a VM) where you could cross-
>> compile?  Haven't tried that in many years, but it's still supported.
>>
>>
>> Regards -- Volker
>> --
>> ------------------------------------------------------------------------
>> Volker A. Brandt        Consulting and Support for Solaris-based Systems
>> Brandt & Brandt Computer GmbH                   WWW: http://www.bb-c.de/
>> Am Wiesenpfad 6, 53340 Meckenheim, GERMANY            Email: [email protected]
>> Handelsregister: Amtsgericht Bonn, HRB 10513              Schuhgröße: 46
>> Geschäftsführer: Rainer J.H. Brandt und Volker A. Brandt
>>
>> "When logic and proportion have fallen sloppy dead"
>
> I have set up a qemu-sparc64 to compile the kernel. So i can try
> different settings until the kernel eventually becomes stable on this
> machine.
> A Linux kernel can run and compile for weeks without any problem,
> while the NetBSD-Kernel could crash as early as one hour after boot.
>
> I don't have experience what is needed to analyze or debug the cause,
> so my plan is to play with different settings of the kernel to see
> what happens.
>
> So now i am testing these options:
>
> aceride* at pci? dev ? function ? flags 0x0002 # Acer Lab IDE controllers
> cd* at atapibus? drive ? flags 0x0fac # ATAPI CD-ROM drives
>
> But to boot this kernel needs the relevant SSIZE settings/patches
> mentioned by John Klos to correctly initialize my mach64-GPU on the
> Sun Blade 100.
> I figured this applies to param.h in
> /usr/src/sys/arch/sparc64/include, so i doubled the value from 2 to 4:
>
> /* We get stack overflows w/8K stacks in 64-bit mode */
> #define SSIZE 4 /* initial stack size in pages */
> #else #define SSIZE 4
> #endif
> #define USPACE (SSIZE*8192)
>
> But i am not sure if this is the correct location and/or value and if
> there are more changes needed...
>
> Regards,
> Connor
>