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User: Drishmung

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  1. Re:ZFS needs ECC RAM on Apple Announces Its New Desktop OS macOS Sierra Featuring Siri, Apple Pay (9to5mac.com) · · Score: 1
    You said "ZFS needs ECC RAM". Implying that ZFS is special is this regard. The link however contains the following:

    7 Beyond ZFS
    In addition to ZFS, we have applied the same fault injec- tion framework used in Section 5 to a simpler filesystem, ext2. Our initial results indicate that ext2 is also vulner- able to memory corruptions. For example, corrupt data can be returned to the user or written to disk. When cer- tain fields of a VFS inode are corrupted, operations on that inode fail or the whole system crashes. If the inode is dirty, the corrupted fields of the VFS inode are propa- gated to the inode in the page cache and are then written to disk, making the corruptions permanent. Moreover, if the superblock in the page cache is corrupted and flushed to disk, it might result in an unmountable filesystem.
    In summary, so far we have studied two extremes: ZFS, a complex filesystem with many techniques to maintain on-disk data integrity, and ext2, a simpler filesystem with few mechanisms to provide extra relia- bility. Both are vulnerable to memory corruptions. It seems that regardless of the complexity of the file sys- tem and the amount of machinery used to protect against disk corruptions, memory corruptions are still a problem.

    ZFS needs ECC as much as every other file system.

  2. Re:ZFS needs ECC RAM on Apple Announces Its New Desktop OS macOS Sierra Featuring Siri, Apple Pay (9to5mac.com) · · Score: 1

    ZFS requires an absurd amount of RAM dedicated to managing storage.

    And ZFS needs ECC RAM, errors must be detected because with ZFS there can be a write to the hard drive to fix a mismatched "checksum" when the software is requesting a read. Bad RAM is a much bigger problem with ZFS than other file systems. Its really not a good idea for consumer hardware.

    Disputed, to put it mildly.

  3. Re:Xenix on Microsoft Has Created Its Own FreeBSD (microsoft.com) · · Score: 1
    Netcraft confirms, FreeBSD is dyng... oh, wait...

    Netcraft confirms, Microsoft is dying... um...

    Ah! Netcraft confirms, Xenix is dying!

  4. Re:Successor states after a breakup on Estonian President Expresses Desire For More Digitally-Integrated Europe (arstechnica.com) · · Score: 1

    Interpreted by whom? In cases of sovereignty like this, which law decides? And that then leads to my second question, what happens when a country joins the EU? (IANAL by the way, in case you had not guessed. I am interested in what does happen here).

  5. Re:Why have any of these restrictions? on Estonian President Expresses Desire For More Digitally-Integrated Europe (arstechnica.com) · · Score: 1
    And when those exclusive contracts refer to countries that no longer exist?

    * Czechoslovakia (1993)
    * East Germany (1990)
    * Yugoslavia (1992)
    And when a country enters the EU, and all contracts are now subject to new, overriding law which may negate these contracts?

  6. Re:Use password strength as the criterion on Microsoft May Ban Your Favorite Password (securityweek.com) · · Score: 2

    That is essentially what they are doing. But, added to the simple rule based strength measure is a set of current rainbow tables. If they are throwing out the other silly rules, like mixed case, numerals etc and just looking at objectively weak passwords (a password in a rainbow table is objectively weak) then this sounds great.

  7. Oh, "Crops", not "Cops" on Genetically Modified Crops Are Safe, Report Says (nbcnews.com) · · Score: 1

    I first read this as "Genetically Modified Cops Are Safe, Report Says", which would have made for a much more interesting article.

  8. I, for one, welcome our new insect overlords on John Kasich To Drop Out, Leaving Trump as GOP Nominee (vox.com) · · Score: 1

    C'mon, surely evil aliens and mind control is the only rational explanation for the current state of affairs.

  9. Data General and Apple MPW on Slashdot Asks: What's Your Favorite Easter Egg? (slashdot.org) · · Score: 1
    Data General's AOS/VS operating system had an undocumented command named "XYZZY." In the original 16-bit version, the response was: "Nothing happens." In a later 32-bit version, this was amended to: "Twice as much happens."

    http://rickadams.org/adventure...

    The Apple MPW C compiler had a notorious set of error messages (does this count as an Easter egg?). http://www.netfunny.com/rhf/jo...

  10. Re:Hidden SIDs on Slashdot Asks: What's Your Favorite Easter Egg? (slashdot.org) · · Score: 2

    Also, at one time, slashdot used to embed Futurama quotes in the http headers. curl -sI https://slashdot.org/ would print them. Alas, no more.

  11. Re:I solved the problem with my long complicated n on Names That Break Computers (bbc.com) · · Score: 1
  12. Identity Management on The State of Slashdot: Https, Poll Changes, Auto-Refresh, Videos, and More · · Score: 1
    My registered email address no longer exists, and hasn't for years. It doesn't exist because the ISP no longer exists. I therefor have a problem with changing my email address to a valid one, since it will try to confirm to an email address that is no longer reachable.

    It's a minor problem, but as you do the rewrite, I'd appreciate it if you gave it a few milliseconds of thought :)

  13. Re:auto-refresh sucked. Beware UTF8 injections on The State of Slashdot: Https, Poll Changes, Auto-Refresh, Videos, and More · · Score: 1

    The ability to see past edits would address that. But really, we just need better editing. Preview helps, but a live preview would be better, prefereably with spelling, grammar and link checking. The legitimate uses for after the fact editing seem to be catching something you missed in the preview, so fixing that at source seems to me to be the better option.

  14. Re:Focus on NASA on Join the Hunt For the Government's Oldest Computer (muckrock.com) · · Score: 1

    They must have a 360 running.

    "A 360" in the sense of "an IBM System/360", or "a 360" in the sense of "a machine compatible - except perhaps at the supervisor-mode level - with an IBM System/360"?

    Basically, you just described CICS

    While I may be wrong or simply out of date, my understanding is that CICS is an application running in what is essentially a virtual IBM/360. The virtualisation meant that CICS didn't have to be rewritten for the IBM.370 to take into account newfangled things like memory protection.

  15. Re:Why the steep climb on Google, Yahoo Cry About Ad-Blocking (cnbc.com) · · Score: 5, Insightful
    Neither do I, but that might be because I've run some sort of ad blocking for years. :)

    But, ads have become incrementally more annoying, and seem to have passed a threshold.

    * I don't mind advertising. Advertising lets me find things that I might want or need.

    * I don't mind sites showing me advertising.

    * I don't mind advertisers knowing that their ad appeared on a page that was viewed.

    * I don't mind advertisers knowing that someone clicked on that ad.

    * I do object to the presence of ads making the page slow to load.

    * I object very much to the presence of ads making the page extremely slow to load.

    * I object to the presence of ads consuming lots of my bandwidth (I resource that I pay for).

    * I object very much to the presence of ads making the page unusable (pop-overs, unsolicited audio, etc.)

    * I do not cede my privacy to the advertiser.

    - - you do not have permission to track me

    - - you do not have permission to sell information (surreptitiously) gathered about me to 3rd parties

    Stop treating me with contempt, stop treating me as a resource to be pillaged. If I tell you not to track me, do not ignore my instruction, and especially do not bleat that it's OK for you to ignore my instruction but it's not OK to for me to ignore your ads.

    As your advertising becomes increasingly indistinguishable from malware, do not be surprised when a market springs up to counter it.

  16. Re: You must be new here on Ask Slashdot: How Can We Improve Slashdot? · · Score: 1
    I'd like to see a "newbie" flag. Rather than give newbies a -1 they can lose by positive moderation, just a flag that expires on the 3 month/6 month/1 year anniversary (exact interval to be debated). Then I can browse at +1/newbies +3. I can always add extra bias towards a newbie whose comments I like. It might aid sock puppet ID as well.

    It's also not just a penalty. A visual indication that someone is new might cause responses to be more gentle/forgiving. (I must be new here. Maybe I'm just an optimist)

    I'd also like a "welcome back" flag for comments more than 6 months since the last time (or maybe a smarter algorithm that determines a hiatus based on previous activity). A little more personal, but also a point of information which can act as useful guidance to the reader.

  17. Re:Behaviour... on How Amazon's Monster Erotica Book Ban Shaped CloudFlare's Censorship Stance (zdnet.com) · · Score: 3, Interesting
  18. Re:Bad in any case on Plug In an Ethernet Cable, Take Your Datacenter Offline · · Score: 5, Insightful
    Why didn't they at least recess the switch? You really don't want to accidentally press a reset switch. Poor design.

    Not that Cisco hasn't made faux pas before. The 25xx as I recall had socket for a PCMCIA card, but no slot in the front panel to access it! You had to take the case off to do that.

  19. Re:Right in front of your face on What's the Oldest Technology You've Used In a Production Environment? · · Score: 1
    EBCDIC did have one way it was superior to ASCII:

    It correctly collated digits after letters.

    However, it then sorted abc...xyz before ABC...XYZ—and put special characters like {} into the middle of the letters between I and J and R and S.

    So, in other words, not superior at all. :)

  20. Re:Pixar on What's the Oldest Technology You've Used In a Production Environment? · · Score: 1
    Voyager 2 launched in August 1977. I suppose it's possible that every last bit of code was been updated from earth since then (there is only 64kB in total after all), but the hardware itself is still operating.

    Some details here.

  21. Re:Poorly described on Company Aims To Launch Spacecraft On Beams of Microwaves · · Score: 2
    Agreed. it's been around a long time.

    Note that the sending array is huge. 1 sq km in the linked article. That means that the energy density of the beam is low, so you don't cook passing birds, but more importantly, don't waste energy heating up the water vapour in the air either. The receiving antenna also needs to be big. The bigger the better, so you can keep the efficient coupling over a long distance. In this case, long enough to get it to orbit.

    The interesting thing about this idea is getting the high specific impulse, so you can single stage to orbit.

    The coupled microwave idea has been mooted before for a couple of things.

    1. Beam solar power back down to earth (1 km array in space, 10 km x 10 km array on earth. Quite efficient.)

    2. Ion drive. With a 10km x 10km or even 100km x 100km and 1x1km or 10 x 10km you can power an ion drive over huge distances, enough to send something to nearby stars. With no power source on board, the rocket gets to be extremely efficient. There is of course the inconvenience of the earth both rotating and orbiting, so you really want the transmitter in space.

    This latest idea looks quite interesting.

  22. Re:Nitrogen asphyxiation? on How To Execute People In the 21st Century · · Score: 4, Insightful
    That is very much the heart of it.

    Consider at one extreme, public decapitation. However, only 'barbaric' cultures do this. So, the quest in the USA in particular was for a more 'humane' method, one that, incidentally, does not traumatise the executioner or the witnesses too much. (And that's a thing to consider. You probably don't want the sort of person who really, really enjoys their job to be an executioner in the first place [the normal solution to this is to appoint a condemned prisoner, but that has other problems]); and you probably don't want to send your humane executioner insane simply from doing their job either).

    And so, the quest for 'humane' methods that don't traumatise anyone, which historically got side-tracked by the shiny of technology (poison gas, electricity).

    Lethal injection goes to extreme lengths to pretend that all is sweetness and unicorns: victim is put gently to sleep, then paralyzed (so on-lookers don't freak out---of course if prisoner is not unconscious, this is the stuff of nightmares), then heart is stopped (apparently agonising if not unconscious). So. Many. Ways. To. Go. Wrong.

    And it's all down to the pretence that the state can kill someone 'humanely'. Without upsetting anyone, not even the condemned.

  23. Re:The best of both worlds! on Ask Slashdot: Which Classic OOP Compiled Language: Objective-C Or C++? · · Score: 1

    Well then, why not Object Oriented COBOL? (In COBOL idiom, ADD 1 TO COBOL GIVING COBOL.)

  24. Re:Objective C on Ask Slashdot: Which Classic OOP Compiled Language: Objective-C Or C++? · · Score: 1

    Against that, modern C++ has more modern and advanced syntax (lambda, templates).

    Objective C has lambdas.

    Sorry, you are right. I'd forgotten about blocks. Objective C 2.0 also added some syntax extensions.