#x86_64 — Public Fediverse posts

Investigating Split Locks on x86-64

https://chipsandcheese.com/p/investigating-split-locks-on-x86

#HackerNews #SplitLocks #x86_64 #CPUArchitecture #HardwareSecurity #TechInvestigation

LETS GOOOOO

#Intel listened! No more ambiguity, no more questioning, 128 bit only implementations are no longer valid for #AVX10!

A massive thanks to the Intel ISA folks!

And a major thanks to @chipsandcheese for giving me a platform to express my concerns on the spec!

For those wanting to read the updated spec, it’s here: https://cdrdv2.intel.com/v1/dl/getContent/828964?fileName=355989-intel-avx10.1-spec.pdf

And for those interested in the article asking for this, it’s available here: https://chipsandcheese.com/2023/10/11/avx10-128-is-a-silly-idea-and-should-be-completely-removed-from-the-specification/

#HPC #AVX #x86 #x86_64

@hare @fedora @centos Hot off the press, any volunteers willing to test out the latest #harelang toolchain build from my COPR? It provides #x86_64 and #aarch64 builds for #F38, #F39, and #EPEL9.

$ dnf copr enable mroche/hare
$ dnf install hare

Some other changes:
- New cross-compile meta packages for #GNU and #LLVM dependencies.
- I've created a convenience script, harex, to switch to non-GNU toolsets. Just set HARE_XCOMPILE_TOOLCHAIN to "llvm". User specified env vars will still be respected.