delamon

4 ms·

1.
by delamon 13d ago
> Turkey for example has multiple frequencies under 5Ghz WiFi that is banned, hence consumer don't get to use 5Ghz WiFi. Are you sure? According to wiki, there are plenty allowed 5GHz channels in Turkey.
2.
by delamon 17d ago
Objects belonging to multiple double-linked lists at the same time. Easily done with intrusive lists. Safe rust would require Rc/Arc: penalty both on memory usage and cpu time.
3.
by delamon 18d ago
The code is sloppy. They check existance of kdialog binary using full path; next step they rely on PATH search by shell. If would've been much safer to just do execve directly.
4.
by delamon 21d ago
My amd thinkpad idles at 3w, watching youtube is about 4.5-5w.
5.
by delamon 23d ago
Yes, but if you want pus truly wide events (e.g. >64KiB), then it migth push syslog implementation from happy/well-throded path.
6.
by delamon 23d ago
> There can be overload, but the backpressure should propagate downstream and senders and intermediaries should buffer locally if needed. You're only delaying the inevitable. Even with local buffering, you can arrive at a point wher
7.
by delamon 2mo ago
You surely meant capacitors, not transistors
8.
by delamon 2mo ago
How so? PGO might indicate that most of the time arguments are in bounds, but that's not enough. It has to be a proof with 100% certainty before bound checks can be removed
9.
by delamon 2mo ago
Or even use acl(5), which is simplier than making arbitrary groups.
10.
by delamon 2mo ago
You can, in fact, give compiler a hint wether the branch will be predictable or not. E.g. clang has __builtin_unpredictable().
11.
Claude bug report: Cross-session credential leakage(github.com)
4 points by delamon 2mo ago|0 comments
12.
by delamon 3mo ago
He only gets 4-5Gbps in the other direction.
13.
by delamon 4mo ago
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 d
14.
Tanenbaum: Can We Make Operating Systems Reliable and Secure? (2006) [pdf](cs.vu.nl)
2 points by delamon 4mo ago|0 comments
15.
by delamon 4mo ago
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+ l
16.
by delamon 4mo ago
yes
17.
by delamon 4mo ago
I assume you mean container, not VM. But yes, container makes it harder.
18.
by delamon 4mo ago
The attack gives you ability to overwrite any cached page. So you don't need to be root to "edit" /etc/passwd.
19.
by delamon 4mo ago
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'
20.
by delamon 4mo ago
Apparently it is both...
21.
by delamon 4mo ago
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).
22.
by delamon 4mo ago
How would've memory safety helped here?
23.
by delamon 4mo ago
Another data point: AMD T14 G4 with s2idle draws about 0.4% per hour of sleep.
24.
by delamon 4mo ago
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,
25.
by delamon 4mo ago
Right, I misread the spec.
26.
by delamon 4mo ago
What kind of usage do you envision for 245TB drive with read speed of 3GB/sec?
27.
by delamon 4mo ago
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
28.
You Don't Review Your Compiler Output(scottrfrancis.wordpress.com)
3 points by delamon 5mo ago|0 comments
29.
Rust-coreutils – Program Security Assesment [pdf](github.com)
4 points by delamon 5mo ago|1 comments
30.
by delamon 5mo ago
Zelic discovered 73 security problems with uutils, 7 critical, 11 of high impact, 29 of medium and rest is low.

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