Linus Torvalds on regressions
lkml.org
lkml.org
edit:
More interestingly, he later explains his behaviour (and sort of apologizes for exploding): https://lkml.org/lkml/2018/8/3/727
Even Linus recognises that "I just go ballistic" a bit later in the thread ;-)
I believe the exploding appearance was an intentional writing style. We reading it because a) it's Linus and b) he very clearly communicates his position to the point of being crass. It works and is stated in the opening: "Dammit. I haven't had to shout and curse at people for a while, but this is ABSOLUTELY THE MOST IMPORTANT THING IN THE UNIVERSE WHEN IT COMES TO SOFTWARE DEVELOPMENT"
Makes a clear statement AND expresses a clear tone. Was he teaching? Yes. Did he make his point? Yes. Was he calm? Behind the keyboard maybe. But in the email I'd wager he didn't want to look calm
I remember reading a chef (might have been Bourdain) who said something like when the head chef is shouting "Where the fuck is the fucking lamb you useless piece of shit" then things where basically on track, but if he calmly said "can you please hurry up with the starters for table 6 and 7" then he knew he was in deep trouble and really had to pick up his pace.
People need to be a lot more straightforward in their daily dealings with others. The world would be a much better place.
Here's Linux talking about being straightforward, and why he cannot afford ambiguity:
This made me laugh, then cry. I regularly hit kernel regressions in functionality (e.g. worked and now doesn't) in both my personal and professional/work systems. Sadly, the components are not niche drivers, it's things like ath9k, i915, iwlwifi, alsa (and several drivers there), etc. The kernel desperately needs more testing than just a handful of developers dog fooding it before calling it 'good.'
A userland tool supported functionality that it can't anymore, because it isn't available in a new kernel. This is not surprising, as people find ways to access and change data outside of published APIs all the time and they get patched away. The userland author said that the kernel upgrade would break old versions of the tool. So what?
This one was pretty tame compared to his past outbursts, it sounds way more passionate than condescending.