Hacker News: delamon

New comment by delamon in "Framework's 10G Ethernet module exposes USB-C's complexity"

delamon — Fri, 26 Jun 2026 08:16:51 +0000

He only gets 4-5Gbps in the other direction.

New comment by delamon in "Zig: Build System Reworked"

delamon — Sun, 31 May 2026 08:01:04 +0000

Inderect call cost is a few cycles, if predicted. Now, you can argue, that it may be mispredicted and misprediction would cost about 20-30 cycles. But if it is mispredicted, then you are not calling into allocator often enough. And if you don't hammer it hard, then why do you care about preformance?

Tanenbaum: Can We Make Operating Systems Reliable and Secure? (2006) [pdf]

delamon — Tue, 19 May 2026 17:49:57 +0000

Article URL: https://www.cs.vu.nl/~ast/Publications/Papers/computer-2006a.pdf

Comments URL: https://news.ycombinator.com/item?id=48196657

Points: 2

# Comments: 0

New comment by delamon in "Bun Rust rewrite: "codebase fails basic miri checks, allows for UB in safe rust""

delamon — Mon, 18 May 2026 11:20:43 +0000

can't help myself: how common to see code like https://github.com/oven-sh/bun/blob/main/src/bun_core/string... instead of simple ilog2()? I guess, ut somewhat explains how they got 700k+ lines of code

New comment by delamon in "EU Parliamentary Research Service calls VPNs "a loophole that needs closing""

delamon — Sat, 09 May 2026 11:59:27 +0000

yes

New comment by delamon in "Dirtyfrag: Universal Linux LPE"

delamon — Fri, 08 May 2026 13:41:34 +0000

I assume you mean container, not VM. But yes, container makes it harder.

New comment by delamon in "Dirtyfrag: Universal Linux LPE"

delamon — Fri, 08 May 2026 12:43:23 +0000

The attack gives you ability to overwrite any cached page. So you don't need to be root to "edit" /etc/passwd.

New comment by delamon in "Dirtyfrag: Universal Linux LPE"

delamon — Fri, 08 May 2026 08:45:22 +0000

setuid binaries are not the only way to get root. E.g. one can change /etc/crontab or /etc/passwd. Or add trojan to /bin/ls and wait until admin type 'ls'

New comment by delamon in "Copy Fail 2: Electric Boogaloo"

delamon — Fri, 08 May 2026 06:49:45 +0000

Apparently it is both...

New comment by delamon in "Copy Fail 2: Electric Boogaloo"

delamon — Fri, 08 May 2026 05:57:13 +0000

If you "forget" to mark COW memory pointer as no-write, the net effect would be same, would it not? If I'm reading the diff correctly, the problem was that code missed to mark some pages as shared (aka no-write).

New comment by delamon in "Copy Fail 2: Electric Boogaloo"

delamon — Fri, 08 May 2026 05:03:58 +0000

How would've memory safety helped here?

New comment by delamon in "StarFighter 16-Inch"

delamon — Wed, 06 May 2026 18:20:14 +0000

Another data point: AMD T14 G4 with s2idle draws about 0.4% per hour of sleep.

New comment by delamon in "StarFighter 16-Inch"

delamon — Wed, 06 May 2026 18:18:22 +0000

Lenovo sells ThinkPad T-series laptops as “Linux-supported.” However, if you happen to buy an AMD version of one of these laptops, you may be surprised by how poorly the Wi‑Fi works. It’s been several years since the T14 Gen4 was released, and yet the Wi‑Fi is still not stable.

New comment by delamon in "245TB Micron 6600 ION Data Center SSD Now Shipping"

delamon — Wed, 06 May 2026 15:27:38 +0000

Right, I misread the spec.

New comment by delamon in "245TB Micron 6600 ION Data Center SSD Now Shipping"

delamon — Wed, 06 May 2026 10:14:56 +0000

What kind of usage do you envision for 245TB drive with read speed of 3GB/sec?

New comment by delamon in "245TB Micron 6600 ION Data Center SSD Now Shipping"

delamon — Wed, 06 May 2026 07:17:52 +0000

QLC retention reported to be around 1 year in unpowered state. I would assume, that drive does background refresh, though. No idea what effect it has on total drive lifetime. It is still mean that if you use it for cold storage it has to be powered.