Viewing profile — bremac

Location: San Francisco, CA Remote: Yes Willing to relocate: Yes Technologies: Java, C, C++, SQL, Python, Kubernetes, Linux, perf, PostgreSQL, OCaml Résumé/CV: http://macdonell.net…

Location: San Francisco, CA Remote: Yes Willing to relocate: Yes Technologies: Java, C, C++, SQL, Python, Kubernetes, Linux, perf, PostgreSQL, OCaml Résumé/CV: http://macdonell.net…

Unfortunately none of the hardware used for testing supports FP16 arithmetic. Between Intel and AMD, the only platform that supports AVX512-FP16 is currently Sapphire Rapids.

Value types still require allocation for types larger than 128 bits if the value is either nullable or atomic — that seems like a reasonable trade-off to me.

Keep in mind that you still need send a print job to the fake printer to trigger the exploit. If you send the job to your real printer, nothing happens.

Per the bug report, all versions since Java 8 are affected.

Unfortunately, unless the JIT can prove that the address you are accessing via the segment is non-negative, it can't elide the bounds check. See https://mail.openjdk.org/pipermail/…

As the comment you replied to indicates, both of those APIs perform bounds-checking. In certain tight loops, this can add up to quite a bit of overhead [1]. However, it's not docum…

Reading between the lines, it sounds as if they're using mmap. There is no "append" operation on a memory mapping, so the file would need to be preallocated before mapping it. If t…

I think you may have linked to the wrong graph — while that graph does have a spike on it, the spike happens when the index was broadened in May 2020 to include savings and money m…

Thanks for mentioning this, I couldn't think of where I'd read about this technique before. I was remembering https://webkit.org/blog/6161/locking-in-webkit/

I think that the answer here is "not easily". To use the x32 ABI, you would need: 1. Kernel support to be enabled in order to make x32 system calls. Checking /proc/config.gz on Arc…

> If you allocate a chunk on the heap with 8-byte alignment, then you can throw away the lowest 3 bits of precision, and then you can address 32GB with a 32-bit pointer. This part …

-m32 doesn't target the x32 ABI though, it targets x86. Per the manual: > The -m32 option sets int, long, and pointer types to 32 bits, and generates code that runs on any i386 sys…

I'm unsure about library support, but gcc and clang support function multi-versioning (FMV), which resolves the function based on CPUID the first time the function is called. This …

> but interests of corporate mega producers they can't guarantee such thing at scale. So to protect them and people from them these laws are made kind of impossible triangle. In No…

As someone who grew up on a dairy farm, who worked on a farm, and who has friends and family operating their own farms, I'd like to point out that this is backwards. Farmers know t…

As much as I am not a fan of Applebee's, the article title on HN should probably be fixed. The executive who sent the email works for Apple Central, a mid-sized franchisee with les…

The internet is the least of your problems. The key industrial automation equipment (PLCs and IPCs) is connected directly to your machines. Higher-level control and planning functi…

If Putin presses on toward Poland or threatens the Baltics, then we will be on a knife's edge. However, for now, Russia has only invaded Ukraine. It's a humanitarian disaster, but …

That's rather hyperbolic. Article 4 has been invoked six times since 2003 (including in response to the Crimean invasion.) None of those cases triggered World War III.