CPU Hardware Bugs

The cluster focuses on discussions of bugs and defects in Intel and AMD CPUs, such as errata, microcode issues, and hardware faults causing crashes or segfaults, often debating if they are hardware problems versus software bugs and sharing workarounds like BIOS tweaks or replacements.

📉 Falling 0.4x Hardware
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Keywords

CPU IVB PCH PC slashdot.org developer.amd mozilla.org NMI MWAIT GPU bug hardware cpu microcode cpus gdb vm issue intel os

Sample Comments

Avery3R Mar 12, 2020 View on HN

This bug isn't in the CPU, it's in the PCH.

emilfihlman Aug 20, 2018 View on HN

It's strange that Intel hasn't fixed this yet.

yetihehe Feb 23, 2024 View on HN

It seems like it happens only on some select cpu specimens (apparently works after replacing cpu with another one of the same model), so probably a small binning failure?

bonzini Jan 29, 2018 View on HN

Nah, it's just the well-known issue with the microcode being buggy. There's nothing new really.

kllrnohj Jan 28, 2025 View on HN

Or it's a hardware issue and they don't have any way to do a microcode fix for this

hspak Aug 5, 2017 View on HN

Potentially related to this issue over 5 years ago? https://it.slashdot.org/story/12/03/06/0136243/amd-confirms-...

fulafel May 4, 2019 View on HN

Well, it's a hardware defect in some memory modules. Same types of tricks can be used to trigger nany kinds of hw bugs in various CPUs and other chips.

teilo Jan 3, 2018 View on HN

Why? It's not an OS bug. It's a hardware bug.

pkaye Jan 2, 2018 View on HN

Is this issue only of concern for Intel with Linux? What about OSX, BSD or Windows?

paulryanrogers Jun 1, 2023 View on HN

Would this qualify as more CPU errata?