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Samsung Laptop Bug Is Not Linux Specific

First time accepted submitter YurB writes "Matthew Garrett, a Linux kernel developer who was investigating the recent Linux-on-Samsung-in-UEFI-mode problem, has bricked a Samsung laptop using a test userspace program in Windows. The most fascinating part of the story is on what is actually causing the firmware boot failure: 'Unfortunately, it turns out that some Samsung laptops will fail to boot if too much of the [UEFI] variable storage space is used. We don't know what "too much" is yet, but writing a bunch of variables from Windows is enough to trigger it. I put some sample code here — it writes out 36 variables each containing a kilobyte of random data. I ran this as an administrator under Windows and then rebooted the system. It never came back.'"

10 of 215 comments (clear)

  1. They didn't get the memo by Anonymous Coward · · Score: 4, Funny

    it writes out 36 variables each containing a kilobyte of random data

    36k clearly isn't enough for anyone.

  2. Re:memo to hardware producers by PolygamousRanchKid+ · · Score: 3, Funny

    How about a warning sticker?

    "Warning: UEFI Inside!"

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    Schroedinger's Brexit: The UK is both in and out of the EU at the same time!
  3. Re:Unlimited Supply of Laptops? by pushing-robot · · Score: 4, Funny

    I might be confused, but don't kernel devs normally destroy their instruments at the end of each show?

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    How can I believe you when you tell me what I don't want to hear?
  4. Re:Forgot one detail... by harrkev · · Score: 1, Funny

    Don't forget about telling noobs about the great warez site at 127.0.0.1.

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    "-1 Troll" is the apparently the same as "-1 I disagree with you."
  5. Re:memo to hardware producers by Anonymous Coward · · Score: 5, Funny

    Well, yeah, that's why you have to force them. They're not going to brick their hardware voluntarily, are they?

  6. Re:Forgot one detail... by isorox · · Score: 4, Funny

    Alt+F4, Alt+F4, Alt+F4, Alt+F4, Alt+F4, Alt+F4, Alt+F4 ...I'm sure someone will hit it (even now :-).

    Why would I want to switch to virtual desktop 4?

  7. Re:Unlimited Supply of Laptops? by Dragonslicer · · Score: 2, Funny

    It's okay, kernel developers and heavy metal bands are easily mistaken for each other.

  8. Re:Unlimited Supply of Laptops? by snspdaarf · · Score: 3, Funny

    I might be confused, but don't kernel devs normally destroy their instruments at the end of each show?

    Well, when on the Ed Sullivan Show, they have been known to pack explosives into the drum memory.

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    Why, without your clothes, you're naked, Miss Dudley!
  9. Re: memo to hardware producers by Anonymous Coward · · Score: 2, Funny

    You mean to say that bean counters have an actual positive use?

  10. Re: memo to hardware producers by greg1104 · · Score: 1, Funny

    Your theory that there are capable bean counters who understand statistics and make good decisions using them is an interesting one. I'm going to pick option B however, where RMAs for the model are denied because everyone knows those users destroyed their hardware using that nasty Linux program, and they're not going to get a replacement or refund at all. Why, if anything it's proof that the ability to lock down the bootloader is even more important than ever!

    The awesome thing about statistics is that the intent of person applying them suggests the outcome long before the data is analyzed. Given enough numbers, people will see what they look for.