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'Shut The F**K Up!' Linus Torvalds Tells Red Hat Dev
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Linus Torvalds is mighty upset with Red Hat developer, Mauro Carvalho Chehab as he passed on a bug while fixing some fault in Pulseaudio and other third-party applications.
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Monday, January 14, 2013:
It seems someone did not have a good start to this new year. Linux creator, Linus Torvalds unleashed his wrath on Linux kernel and Red Hat developer, Mauro Carvalho Chehab for passing a bug in the kernel. Torvalds started his long email with- "Mauro, SHUT THE F**K UP!" The bug that outraged Torvalds caused an ioctl() system call to return an inappropriate error code for the operation requested. So, the software employing this feature would face problems due to this unexpected value from the kernel.
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Chehab mistakenly sent a bug in the kernel to fix some fault in Pulseaudio and other third-party applications. But the solution itself as described by Torvalds is “total crap.” “I'm angry, because your whole email was so _horribly_ wrong, and the patch that broke things was so obviously crap. The whole patch is incredibly broken shit. It adds an insane error code (ENOENT), and then because it's so insane, it adds a few places to fix it up ("ret == -ENOENT ? -EINVAL : ret"),” wrote Torvalds in the email.
Here's the entire e-mail:
From Linus Torvalds
Subject Re: [Regression w/ patch] Media commit causes user space to misbahave (was: Re: Linux 3.8-rc1)
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Mauro Carvalho Chehab wrote:
Are you saying that pulseaudio is entering on some weird loop if the returned value is not -EINVAL? That seems a bug at pulseaudio.
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Mauro, SHUT THE F**K UP!
It's a bug alright - in the kernel. How long have you been a maintainer? And you *still* haven't learnt the first rule of kernel maintenance?
If a change results in user programs breaking, it's a bug in the kernel. We never EVER blame the user programs. How hard can this be to understand?
To make matters worse, commit f0ed2ce840b3 is clearly total and utter CRAP even if it didn't break applications. ENOENT is not a valid error return from an ioctl. Never has been, never will be. ENOENT means "No such file and directory", and is for path operations. ioctl's are done on files that have already been opened, there's no way in hell that ENOENT would ever be valid.
So, on a first glance, this doesn't sound like a regression, but, instead, it looks tha pulseaudio/tumbleweed has some serious bugs and/or regressions.
Shut up, Mauro. And I don't _ever_ want to hear that kind of obvious garbage and idiocy from a kernel maintainer again. Seriously.
I'd wait for Rafael's patch to go through you, but I have another error report in my mailbox of all KDE media applications being broken by v3.8-rc1, and I bet it's the same kernel bug. And you've shown yourself to not be competent in this issue, so I'll apply it directly and immediately myself.
WE DO NOT BREAK USERSPACE!
Seriously. How hard is this rule to understand? We particularly don't break user space with TOTAL CRAP. I'm angry, because your whole email was so _horribly_ wrong, and the patch that broke things was so obviously crap. The whole patch is incredibly broken shit. It adds an insane error code (ENOENT), and then because it's so insane, it adds a few places to fix it up ("ret == -ENOENT ? -EINVAL : ret").
The fact that you then try to make *excuses* for breaking user space, and blaming some external program that *used* to work, is just shameful. It's not how we work.
Fix your f*cking "compliance tool", because it is obviously broken. And fix your approach to kernel programming.
-Linus
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(18 Votes)
