re: port-macppc/44895: ofwboot.xcf from current cannot boot system

[matthew green <mrg%eterna.com.au@localhost>]

>  I'm not sure if this is the same issue but booting the 7.1 netbsd.macppc from
>  the provided disk image does not work on my PowerBook G4 (2005).
>  
>  When I run
>  
>  boot cd:,\ofwboot.xcf netbsd.macppc
>  
>  loading the xcf seems to work fine, but then I get
>  
>  5926884+130584=0x5c71fc
>   start=0x100000
>  
>  Decrementer exception at   %SRR0: 004d51e0   %SRR1:00003030
>   ok
>  
>  Now, I found someone on the internet who seemed to have had a similar problem in
>  2008, booting FreeBSD (markmail.org/message/nmzthacf33qdfd7b) where somebody
>  else suggested setting the decrementer register using `1 1f lshift not dec!` as
>  a workaround (I'm not really that familiar with OpenFirmware). After rebooting
>  and trying that out the new failure message reads:
>  
>  5926884+130584=0x5c71fc
>   start=0x100000
>  
>  Invalid memory access at   %SRR0: 004d51e0   %SRR1:00003030
>   ok

this looks like PR 22316 to me:

   http://gnats.netbsd.org/22316


.mrg.