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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    1. Hector Martin‏ @marcan42 8 Nov 2017
      • Report Tweet
      • Report NetzDG Violation

      So node_exporter was crashing on my PC and now I'm bisecting kernel configs to figure out what triggers what smells like a Go runtime bug that everyone assumed was a hardware issue but now I can reproduce it on three Intel hosts and one AMD. I'm not sleeping tonight, am I.

      4 replies 3 retweets 32 likes
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    2. Hector Martin‏ @marcan42 8 Nov 2017
      • Report Tweet
      • Report NetzDG Violation

      Now it appears the *toolchain* used to compile the kernel matters. Same GCC/ld version, two different hosts, both kernels cause the issue. Different GCC/ld version, third host, kernel is fine. Moving kernels across hosts it's the kernels that matter, not the hosts I run them on.

      2 replies 1 retweet 7 likes
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    3. Adam Higerd‏ @codahighland 8 Nov 2017
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      Replying to @marcan42

      Oh good grief, so you're looking at a compiler bug introducing a kernel bug introducing a userspace bug? That's gonna be hell to debug x.x

      1 reply 0 retweets 1 like
      Hector Martin‏ @marcan42 8 Nov 2017
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      Replying to @codahighland

      Perhaps a compiler bug introducing a kernel bug introducing a runtime bug introducing an application bug. Yeah, fun times ahead. Could also just be a runtime bug that is triggered by a very specific set of circumstances, though, where memory layout matters in weird ways.

      9:23 AM - 8 Nov 2017
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      • Hendrik 'T4cC0re' Meyer
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