4 ms·

I'm still quite certain that some test suite had a faulty PHP benchmark that segfaulted on both vendors and people claimed it was Ryzen only. Oh well. Either

by tscs37 9y ago

I'm still quite certain that some test suite had a faulty PHP benchmark that segfaulted on both vendors and people claimed it was Ryzen only. Oh well. Either way, IMO it's not a roadblock for office and gaming usage.

shmerl 9y ago
It is a roadblock, if you need to build something from source and it segfaults. Can be quite useful for gaming too (building Mesa, Wine, open engines and what not). Besides, mce bug is more critical, since it actually makes the whole system unstable.
- tscs37 9y ago
  The MCE bug might explain some behaviour on my system, however, I could just as easily also blame frequent brownouts. On the other hand, the compile thingy has never been an issue yet, despite me compiling a lot of things. (Ryzen 7) And for gaming, I've never had a game crash, I do doubt that many people really game under Linux yet, most gaming happens on Windows. Office use is not roadblocked at all.
  - shmerl 9y ago
    These bugs aren't consistent, and likely affect only part of Ryzen CPUs of the same model, not all of them. That's why the results are so over the place for different people. It also can be affected by power setup, which adds a lot of variables and makes it harder to reproduce. By the way, for users or Gentoo or other distros which actually build packages when installing them, these segfaults are a very major roadblock for any kind of use case.
onli 9y ago
You're right about that. The context there was another phoronix article. https://www.phoronix.com/scan.php?page=article&item=ryzen-segv-continues&num=4 https://www.phoronix.com/scan.php?page=article&item=ryzen-se... and the update to it explains what happened. There are however reports of segfaults during compilations that seem more Ryzen-specific, though even there GCC versions were said to play a role. It is all a bit obscure currently.

by tscs37 9y ago

shmerl 9y ago

It is a roadblock, if you need to build something from source and it segfaults. Can be quite useful for gaming too (building Mesa, Wine, open engines and what not). Besides, mce bug is more critical, since it actually makes the whole system unstable.

tscs37 9y ago
The MCE bug might explain some behaviour on my system, however, I could just as easily also blame frequent brownouts. On the other hand, the compile thingy has never been an issue yet, despite me compiling a lot of things. (Ryzen 7) And for gaming, I've never had a game crash, I do doubt that many people really game under Linux yet, most gaming happens on Windows. Office use is not roadblocked at all.
- shmerl 9y ago
  These bugs aren't consistent, and likely affect only part of Ryzen CPUs of the same model, not all of them. That's why the results are so over the place for different people. It also can be affected by power setup, which adds a lot of variables and makes it harder to reproduce. By the way, for users or Gentoo or other distros which actually build packages when installing them, these segfaults are a very major roadblock for any kind of use case.

onli 9y ago

You're right about that. The context there was another phoronix article. https://www.phoronix.com/scan.php?page=article&item=ryzen-segv-continues&num=4 https://www.phoronix.com/scan.php?page=article&item=ryzen-se... and the update to it explains what happened. There are however reports of segfaults during compilations that seem more Ryzen-specific, though even there GCC versions were said to play a role. It is all a bit obscure currently.