Re: 6.4/hppa regression: no LAN or UWSCSI on C360

> From: Miod Vallat <[email protected]>
> Date: Mon, 24 Dec 2018 20:05:02 +0000 (UTC)
> 
> > I've just been trying to install OpenBSD on an HP C360, and running into
> > some problems.  OpenBSD 6.4 boots okay, but it does not recognize either
> > the machine's LAN interface or its internal ultra-wide SCSI bus, making
> > it pretty much useless except as a doorstop.
> >
> > I then tried installing older versions to see if this was a regression,
> > and it is.  OpenBSD 6.2 recognizes those devices just fine.
> 
> Argh. This is a regression in the installation kernel only, which was
> introduced by changes I wrote in the 6.4 development cycle. I
> incorrectly removed the attachment rule for dino at uturn1. Sorry about
> that.
> 
> Unfortunately, there is no easy way to repair this from UKC; but if you
> are able to use a serial console during the installation or upgrade, you
> may use UKC to swap uturn0 and uturn1; instead of losing the on-board
> devices (Ethernet, SCSI), this will lose the PCI cards (and thus, the
> display).
> 
> To achieve this, boot the installation media and, at the "boot>" prompt,
> enter "-c". Then, at the "UKC>" prompt, enter "change uturn0". This will
> continue in the following dialog, where you need to answer the questions
> as follows:
> 
>   UKC> change uturn0
>   100 uturn0 at mainbus0 offset -1 irq -1 flags 0x0
>   change (y/n) ? y
>   offset [-1] ? 0xff88000
>   irq [-1] ? (press return)
>   flags [0] ? (press return)
>   100 uturn0 changed
>   100 uturn0 at mainbus0 offset 0xff88000 irq -1 flags 0x0
>   UKC>
> 
> Then when you're back at the "UKC>" prompt, enter "quit". The kernel
> will resume booting, and will find the Ethernet and SCSI controllers,
> but not the sti(4) display.
> 
> You can then proceed with the installation or upgrade as usual.
> 
> 
> Note that, once you have installed or upgraded your system, the regular
> kernel does not suffer from this problem and will recognize all your
> devices.
> 
> 
> The source code fix can be found below.

Should I commit that fix to -current?


> Index: sys/arch/hppa/conf/RAMDISK
> ===================================================================
> RCS file: /OpenBSD/src/sys/arch/hppa/conf/RAMDISK,v
> retrieving revision 1.111
> diff -u -p -r1.111 RAMDISK
> --- sys/arch/hppa/conf/RAMDISK	20 Sep 2018 15:19:38 -0000	1.111
> +++ sys/arch/hppa/conf/RAMDISK	24 Dec 2018 19:41:12 -0000
> @@ -59,7 +59,7 @@ wax*		at phantomas0		# Wax on [AB]*
>  wax*		at uturn?		# Wax on C*
>  mongoose*	at mainbus0 irq 17	# EISA Bus Adapter (i82350 or TI???)
>  dino*		at phantomas?		# PCI bus bridge on [AB]*
> -dino*		at uturn0		# PCI bus bridge on [CJ]*
> +dino*		at uturn?		# PCI bus bridge on [CJ]*
>  pci*		at dino?
>  com1		at dino? irq 11
>  
> 
>