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Comment: Re:Betteridge (Score 2) 248

by RazzleDazzle (#47664091) Attached to: The IPv4 Internet Hiccups

This is not technically the explanation for the 2x ratio difference, at least on the Cisco platform under the microscope here. It is slightly more nuanced than that.

The TCAM entries are divided up into two bucket sizes: 72 bit buckets and 144 bit buckets.
An IPv4 address is 32 bits
An IPv6 address is 128 bits

An IPv4 FIB entry is 32-bits plus any additional bits it stores like interface and next-hop info
An IPv6 FIB entry is 128-bits plus any additional bits it stores like interface and next-hop info

128 bits do not fit into a 72-bit bucket so it gets stored in the larger 144-bit bucket.
There are multicast entries, MPLS entries, etc that all fit into one or the other of the two TCAM buckets.

The bucket sizes are 2x difference, not the amount of stored info from the address family sizes.

Comment: Re:Level the playing field (Score 1) 715

by RazzleDazzle (#45947607) Attached to: How Good Are Charter Schools For the Public School System?

I did not care for this article because it seems pretty New Jersey centric and therefore not representative of the whole of charter schools. Minnesota does not allow its charter schools to discriminate on the admissions. In general if you live in Minnesota and are of the appropriate age for your grade level then you pretty much are accepted in the school. If there are more applicants than available spots then it goes to a lottery system. There are few minor exceptions here and there (eg sibling preference) but mostly it's open and fair.

Maybe Minnesota is unique in this regard I don't know but I live in Minnesota and am interested in charter schools as I have school age kids and I just witnessed a new approval for a charter school today (quite by chance on the same day of this /. article).

Comment: Re:Just plain wrong to use Linux in a weapon. (Score 1) 272

by RazzleDazzle (#42540319) Attached to: World's First Linux Powered Rifle Announced

BSD has no problems with this kind of use.

To quote the founder of OpenBSD:
But software which OpenBSD uses and redistributes must be free to all (be they people or companies), for any purpose they wish to use it, including modification, use, peeing on, or even integration into baby mulching machines or atomic bombs to be dropped on Australia.

Comment: Re:Former user (Score 1) 145

by mirabilos (#42410651) Attached to: Debian m68k Port Resurrected

Needless to say that, even *if* there's an exploit for say, the webserver, out there: nobody's going to write shellcode for m68k.

For the same reason, Miod Vallat of OpenBSD fame runs his website on a VAX, and the BSI is said to still use BS/2000 somewhere. Even if not unbreakable, nobody's going to be able to use it ;-) At least not your average 08/15 skriptkiddie.

Comment: Re:WinUAE (Score 1) 145

by mirabilos (#42410557) Attached to: Debian m68k Port Resurrected

Ah, thanks for the additional background. Yes, a pointer to the problems would probably be appreciated by the ARAnyM developers.

The d-i will not work right now, not with the normal mirrors at least, due to debootstrap being unable to cope with needing to pull packages from *two* distributions (unstable and unreleased), we think. We're working on it.

https://wiki.debian.org/M68k/Installing in the meantime has an ext2fs image you can use / boot into, and kernels.

Comment: Re:NetBSD (Score 1) 145

by mirabilos (#42404881) Attached to: Debian m68k Port Resurrected

IIRC, that wasn't it: it did find the root filesystem but was hardcoded to single user and securelevel -1 (I should note that this is the same kernel as was used for the installation).

But thanks for the offer anyway ;-)

Since I can't find an eMail in the archives, I assume I only asked in IRC :( but I did the installation attempt at a conference, so...

Ask Atari-Frosch in #atari-home on OFTC for details, it's her computer, and she can power it on and look. (I think Linux failed due to too few ST-RAM for the kernel to fit. It's rather fat nowadays...)

Comment: Re:what about a linux kickstart rom?? (Score 2) 145

by mirabilos (#42404529) Attached to: Debian m68k Port Resurrected

I'm not good with details on Amiga, but I think the procedure is:

You boot some sort of Kickstart/Workbench, then run an AmigaOS program which is the Linux bootloader and pass it the kernel and, if needed, the initrd from the AmigaOS filesystem, it will load them and make them usable, then jump into Linux. From then onwards, that one will be the OS in charge, making ext4 available etc.

Sadly, no kexec yet. Having to copy out the kernel instead of being able to load it directly from ext4 (or whatever you choose) would be cool.

AFAIHH some of the emulation projects have made available Free (as in Freedom) ROMs for TOS (EmuTOS) and Kickstart, which contain enough code to run this without needing the proprietary Amiga stuff. But, like I said, I'm nowhere near knowledgeable about this part of those architectures, plus I mostly worked on (emulated and a few real) Ataris, not Amigas, while doing this. (And even there, I did as few as possible on the "native" side.)

Comment: Re:NetBSD (Score 1) 145

by mirabilos (#42404481) Attached to: Debian m68k Port Resurrected

Right, but I recently tried to install NetBSD/atari on AtariFrosch's box, and the installer died on itself. I, having BSD experience, managed to still install it by manually untarring the sets, running MAKEDEV, etc. but the kernel seems to have hardcoded booting into securelevel -1 and single user, so the system doesn't come up afterwards without some manual effort on each boot.

No NetBSD® person I asked could help, and the mailing list was dead as well.

Granted, the software works, but it's less refined. (That being said, while Wouter built a debian-installer image, nobody has tested it yet, and installing sid is always chancy due to its moving nature. But debootstrap, edit fstab, get a kernel and boot into it works.)

Comment: Re:WinUAE (Score 1) 145

by mirabilos (#42404431) Attached to: Debian m68k Port Resurrected

cbmuser already issued an Intent To Package FS-UAE to Debian, which makes use of WinUAE's "accurate emulation".

I believe that you should be able to use wouter's d-i build from http://people.debian.org/~wouter/d-i/ to install an m68k system from unstable (with the usual caveats, i.e. installing or debootstrapping unstable does not always work). Note that the build is still "fresh" and nobody has tested it yet, so a failure would not mean an emulation problem.

Once FS-UAE is in Debian, I'll likely publish a disc image for starters like https://wiki.debian.org/Aranym/Quick for the emulated Atari. (Today, I'll make updated .tar.gz archives of a debootstrap result, which helps people already running etch-m68k or sarge (the image you linked is Debian 3.1 = sarge) to quickly install a fresh system, or at least the user space part.)

Watch the debian-68k@lists.d.o mailing list, and/or the Debian Wiki, for progress.

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