4 ms·

or was it NASA Mariner 1 ? http://en.wikipedia.org/wiki/Mariner_1#Overbar_transcription_error http://en.wikipedia.org/wiki/Mariner_1#Overbar_transcription... A

by FoeNyx 14y ago

or was it NASA Mariner 1 ? http://en.wikipedia.org/wiki/Mariner_1#Overbar_transcription_error http://en.wikipedia.org/wiki/Mariner_1#Overbar_transcription... Anyway, as always wikipedia has an interesting list of software bugs : http://en.wikipedia.org/wiki/List_of_software_bugs http://en.wikipedia.org/wiki/List_of_software_bugs I found interesting the computer crash of F22-Raptors after crossing the International Date Line.

huhtenberg 14y ago
They don't have a Mercedes Smart bug where they mixed left and right causing the car to throw itself on its side when going through a turn. (edit) ... and I'm downvoted. Lovely. Totally makes sense.
- CanSpice 14y ago
  You probably got downvoted because you just listed this bug without offering any type of proof that this bug actually happened.
  - crististm 14y ago
    When did HN turned into Wikipedia?
- Someone 14y ago
  I think you mean a Mercedes-Benz A class, in the moose test (http://en.wikipedia.org/wiki/Moose_test http://en.wikipedia.org/wiki/Moose_test) I have never heard that was software related, but it also is a decent bet software was involved, e.g. for stiffening the suspension. What top of the line car did not have software, in 1997?
  - huhtenberg 14y ago
    That's the one, bingo. It was a new line of smaller MBs, so I misremembered it being Smart. The issue though was most certainly with the software overcompensating the roll in the wrong direction. I would've not remembered it otherwise :)
    - lttlrck 14y ago
      The A class didn't have active suspension. I believe it was a mechanical issue and solved with a stiffer front anti-roll bar and other suspension geometry tweak. Though there is a possibility the ESP was tweaked to apply the brake under such circumstances I think that could do more harm than good. I could be wrong, it was 1997.. IIRC the non-ESP MB Sprinter also had stability issues.
      - sebbi 14y ago
        I think the problem was that the A class had no ESP ... after they noticed that it could fall on its side in extreme slalom, this was one of the first (non-luxury) cars to include ESP from the factory.
      - huhtenberg 14y ago
        @sebbi - you are shadow-banned.
  - nawitus 14y ago
    To have software involved with the suspension requires an active suspension, which was rare in 1997. Mercedes added an electronic stability system only after the Moose test failed, so I don't think it was a software problem in the first place (rather software fixed the problem).
  - rbanffy 14y ago
    The A was as far from top of the line as MB goes. It was a cheap, entry-level model.
Aardwolf 14y ago
Don't they test these programs in virtual cases with simulations of realistic data, speeds, angles, altitudes, etc...?
- InclinedPlane 14y ago
  In 1962 there wasn't exactly enough computational power anywhere to do a reasonable simulation of a flight.
- jlgreco 14y ago
  I don't know if it is just a mis-telling of the F-22 bug (I suspect it may be), but I have heard of a bug in the autopilot software of some fighter plane that would cause the plane to flip upsidedown when it was south of the equator on autopilot. Presumably this bug was discovered during simulations, and was never actually accidentally triggered in the wild.

by FoeNyx 14y ago

huhtenberg 14y ago

They don't have a Mercedes Smart bug where they mixed left and right causing the car to throw itself on its side when going through a turn. (edit) ... and I'm downvoted. Lovely. Totally makes sense.

CanSpice 14y ago
You probably got downvoted because you just listed this bug without offering any type of proof that this bug actually happened.
- crististm 14y ago
  When did HN turned into Wikipedia?
Someone 14y ago
I think you mean a Mercedes-Benz A class, in the moose test (http://en.wikipedia.org/wiki/Moose_test http://en.wikipedia.org/wiki/Moose_test) I have never heard that was software related, but it also is a decent bet software was involved, e.g. for stiffening the suspension. What top of the line car did not have software, in 1997?
- huhtenberg 14y ago
  That's the one, bingo. It was a new line of smaller MBs, so I misremembered it being Smart. The issue though was most certainly with the software overcompensating the roll in the wrong direction. I would've not remembered it otherwise :)
  - lttlrck 14y ago
    The A class didn't have active suspension. I believe it was a mechanical issue and solved with a stiffer front anti-roll bar and other suspension geometry tweak. Though there is a possibility the ESP was tweaked to apply the brake under such circumstances I think that could do more harm than good. I could be wrong, it was 1997.. IIRC the non-ESP MB Sprinter also had stability issues.
    - sebbi 14y ago
      I think the problem was that the A class had no ESP ... after they noticed that it could fall on its side in extreme slalom, this was one of the first (non-luxury) cars to include ESP from the factory.
    - huhtenberg 14y ago
      @sebbi - you are shadow-banned.
- nawitus 14y ago
  To have software involved with the suspension requires an active suspension, which was rare in 1997. Mercedes added an electronic stability system only after the Moose test failed, so I don't think it was a software problem in the first place (rather software fixed the problem).
- rbanffy 14y ago
  The A was as far from top of the line as MB goes. It was a cheap, entry-level model.

Aardwolf 14y ago

Don't they test these programs in virtual cases with simulations of realistic data, speeds, angles, altitudes, etc...?

InclinedPlane 14y ago
In 1962 there wasn't exactly enough computational power anywhere to do a reasonable simulation of a flight.
jlgreco 14y ago
I don't know if it is just a mis-telling of the F-22 bug (I suspect it may be), but I have heard of a bug in the autopilot software of some fighter plane that would cause the plane to flip upsidedown when it was south of the equator on autopilot. Presumably this bug was discovered during simulations, and was never actually accidentally triggered in the wild.