[HECnet] DECnet broken with 4.4.0-151 kernel

[Gregg Levine]

Hello!
Thank you for the files. We are aware that even on a decently sized
Pi, such as the Pi3, building a new kernel which for example on my 20
year old P3 Intel machine takes just about an hour, on the Pi last I
had heard its something on the order of all day. And that's on it
mind. I've no idea how long it takes to cross compile a kernel via
either a VM of whatever release name matches the date you selected for
your match. I'm not sure what I am going to do, I had originally some
idea to setup an AWS instance of Debian (which presupposes that it
exists) and do the whole thing in there.

Suggests please folks?
-----
Gregg C Levine gregg.drwho8 at gmail.com
"This signature fought the Time Wars, time and again."

On Thu, Jun 27, 2019 at 6:13 PM John Forecast <john at forecast.name> wrote:
>
> Old versions of Raspbian can be downloaded from:
>
>         <http://downloads.raspberrypi.org/raspbian/images/>
>
> Given the dates on my file system, I would say “raspbian-2018-06-29”. You can upgrade the userland code but don’t update the kernel after you build the modified version.
>
>   John.
>
> > On Jun 27, 2019, at 5:23 PM, Tony Blews <tonyblews at gmail.com> wrote:
> >
> > I've got a spare Pi I was about to get going and try this on... which
> > is the best version of Raspbian to go for?
> >
> > On 26/06/2019, John Forecast <john at forecast.name> wrote:
> >
> >>
> >> My reply with an attached .zip file did not seems to make it so I’ve made it
> >> available through dropbox:
> >>
> >>      <https://www.dropbox.com/s/apmy08ydd9jjo6e/decnet-6_25_2019.zip?dl=0
> >> <https://www.dropbox.com/s/apmy08ydd9jjo6e/decnet-6_25_2019.zip?dl=0>>
> >>
> >> This is a snapshot of my decnet directory and dnprogs from about a year ago
> >> when I got this working. The base kernel was cloned by:
> >>
> >>      git clone —depth=1 -branch rpi-4.14.y https://github.com/raspberrypi/linux
> >> <https://github.com/raspberrypi/linux>
> >>
> >> Extract all the files from the above zip file and:
> >>
> >> 1. Copy files from the zip file include directory to <kernel>/include/net
> >>
> >> 2. Replace the <kernel>/net/decnet directory with the zip file decnet
> >> directory
> >>
> >> 3. Config to add decnet support and rebuild kernel+modules
> >>
> >> I have no idea if this will work with newer kernels.
> >>
> >> I made a few changes to the original source code I received:
> >>
> >> Kernel code:
> >>
> >>      Added special handling for the 0 area:
> >>
> >>              Connect to 0.0 connects to the local node
> >>              Connect to 0.n connects to node “n” in the local node’s area
> >>
> >> Utility programs:
> >>
> >>      Fixed a number of bugs in cterm and DAP especially related to talking to
> >> Tops-10.
> >>
> >>      Allow the DAP utilities (dncopy, dntype etc) to use DECnet-Ultrix syntax
> >> for specifying access control infomation:
> >>
> >>              node/username/password/account::
> >>
> >>      which avoids the double quoting required to use the VMS syntax on Linux. To
> >> enable this feature, create an environment variable called
> >>      USE_ULTRIX_SYNTAX
> >>
> >> Given that Raspberry Pi just released their version of Debian Buster which
> >> uses kernel 4.19.x I’ll probably take a look at getting running there and
> >> create a github repository for the changes. I need to finish my current
> >> project so it will probably be a couple of weeks or so.
> >>
> >>  John.
> >>
> >>
> >
> >
> > --
> >
> > Tony Blews
> > tonyblews at gmail.com         http://www.tonyblews.co.uk/
> > Mob: +44(0)7832 237251    Twit: @tonyblews
>