Re: NetBSD on DECsystem 5000/240

[Magnus Lindholm <linmag7%gmail.com@localhost>]

Hi,

I went through a few versions of the NetBSD installer, below is from
testing 6.1.5, I got similar results with more recent versions, up to
9.3. I can load up 9.3 again if it is of interest.

(the system runs stable on Ultrix 4.5 and I used NetBSD-10.0RC3 to
build a kernel which took a few days of heavy system load)

>>boot 3/rz2/netbsd

NetBSD/pmax 6.1.5 FFSv1 Primary Bootstrap

NetBSD/pmax 6.1.5 Secondary Bootstrap, Revision 1.5



Boot: 3/rz2/netbsd
5399344+81992=0x53a80c
Starting at 0x80030000



segment  0 start 00000000 size 04000000
phys segment: 0x4000000 @ 0
adding 0x293000 @ 0x56d000 to freelist 1
adding 0x3800000 @ 0x800000 to freelist 0
pmap_steal_memory: seg 0: 0x56d 0x56d 0x800 0x800
pid 0(system): trap: cpu0, address error (load or I-fetch) in kernel mode
status=0x80010, cause=0x30000010, epc=0x8000001c, vaddr=0xdeadbeef
tf=0x8056cce8 ksp=0x8056cd88 ra=0x800b01e0 ppl=0
panic: trap
halted.



KN03-AA V5.2b    (PC: 0x8000001c, SP: 0x8056caa8)


On Tue, Feb 20, 2024 at 11:25 PM Jason Thorpe <thorpej%me.com@localhost> wrote:
>
>
> > On Jan 21, 2024, at 1:18 AM, Magnus Lindholm <linmag7%gmail.com@localhost> wrote:
> >
> > Hi all,
> >
> > During the weekend I powered up an old DECsystem 5000/240 and decided
> > to try installing NetBSD. At first I tried 9.3 using the diskimage
> > installation. This failed in a kernel panic, Older versions like 5.2.3
> > which worked fine, however 6.1.5 failed in a kernel panic similar to
> > 9.3. Finally I installed 10.0_RC3 which worked fine! So at least if
> > you're a PMAX owner NetBSD 10.0 seems to work better than previous
> > releases, at least as far as the installation goes.
>
> Can you give a few more details about the crash?
>
> -- thorpej
>