rst

40 ms·

421.
by rst 8y ago
In prior speculation on space-related forums, the only non-military application that seemed likely was space tourism. (The extra flexibility you get on launch site and timing could enable unusually quick rendezvous with a space station alr
422.
by rst 8y ago
Pretty much all high-performance processor designs are affected by some Spectre variant or other, as speculative execution is pretty near universal. IBM is making firmware patches for POWER9 available, with at least some level of mitigatio
423.
by rst 8y ago
Unfortunately, this IR level is not readily accessible to third parties, for political reasons -- RMS does not want to make it easy for third-party code to integrate with GCC at this level, for fear that some of the code that uses that inte
424.
by rst 8y ago
In at least one case, government agents have flat-out lied about the nature of the transport mission (claiming that the obviously terrified migrant kids were traveling as part of a soccer team): https://www.houstonchronicle.com&#
425.
by rst 8y ago
SpaceX did have the government as their major early customer, but they charged less than other vendors of the same services (e.g., Orbital for space station resupply), so it's odd to describe their fees as a "subsidy". That d
426.
by rst 8y ago
OS/400 and AIX are both proprietary. FWIW, the SIMH project distributes a whole lot of proprietary OSes for use with its simulators, but generally does so under license; see http://simh.trailing-edge.com/software.html
427.
by rst 8y ago
SpaceX has been using supercooled propellants (and "load-and-go") for every launch since early 2016, including NASA cargo launches. It's been used over thirty times by now. Whatever additional assurance that NASA's adv
428.
by rst 8y ago
Nit: the COBOL spec dates to 1960; EBCDIC came later, ~1963. In 1960, character codes were specific to the manufacturer, and sometimes to the machine. IBM had a 6-bit BCD code that was mostly consistent across its line, but Univac had its o
429.
by rst 8y ago
On the surface, yes -- but Moses (for whatever reason) hated the subways, and was to some extent responsible for the neglect that made the system a wreck by the late '70s. (For those who have complaints about the way things are now, it
430.
by rst 9y ago
Floating platforms do, in fact, feature prominently in their point-to-point travel concept video. No clue what they'd do for travel to, say, Denver or Paris.
431.
by rst 9y ago
Here are a few off the top of my head: the death of Heather Heyer in Charlottesville last summer, the nine people killed by Dylann Roof in Charleston, and the two killed by Jeremy Christian in Portland Oregon after they interrupted his anti
432.
by rst 9y ago
The overwhelming majority of the crew Dragon money was awarded in the CCtCap contract, in 2017 -- by which time Cargo Dragon and Falcon 9 had both been flying for years. And crewed Dragon development is still in progress; oddly enough, one
433.
by rst 9y ago
They closed the barn door five years ago. The horse got out six years ago.
434.
by rst 9y ago
Per text of the article, McHardy was asking for restitution involving not just future compliance, but also direct cash payments to him , of more than a million euros per violation, which had apparently already resulted in settlements whi
435.
by rst 9y ago
Source? According to everything I've read, the money they got was from a settlement, not a court ruling in their favor. When they sued for more after the settlement, they got slapped down by the courts. e.g., https://www.cbs
436.
by rst 9y ago
A lot of the payloads RocketLab wants to launch are "cubesats" without significant propulsion systems of their own. When traveling as secondary payloads on another launch, these can only wind up in an orbit where its convenient f
437.
by rst 9y ago
Direct use of timing APIs isn't the only channel; it's also possible to make your own timer by having another thread increment a shared variable in a tight loop. Firefox has banned SharedArrayBuffer to block one way of arranging
438.
by rst 9y ago
"Of course maybe they're not actually crooks and they do have the money." Well then, an audit by competent third parties, inspecting where they got their funds, how much they actually have on hand, and whether it covers all p
439.
by rst 9y ago
Incorrect. New York has lots of people trying to get from point A to point B pretty much all the time, and other American systems with half-decent mass transit (Boston, DC) also see those systems get heavy use, to the point that shutdown of
440.
by rst 9y ago
Think about hardcopy terminals. What's left after #-as-DEL is a lot more readable than the overtyped mess you'd get from backspace-and-overwrite.
441.
by rst 9y ago
For most launches, it would be SpaceX's job to demate the payload from their stage -- but not for this one. Unusually (per coverage from Ars and others), the hardware that mated the payload to the rocket was supplied by the customer o
442.
by rst 9y ago
Site isolation mitigates variant 1 of Spectre, which would otherwise allow hostile JS (served, e.g., from an ad server) to read the contents of web pages in other tabs (or anything else in browser memory -- passwords, etc.). Google has a P
443.
by rst 9y ago
Interacting terribly with CPU branch prediction is the whole point -- Spectre attacks work by messing with the branch predictor, to misdirect speculative execution onto paths that reveal information useful to the attacker. So, the point of
444.
by rst 9y ago
Reports are that Windows is also getting an update for this; see refs to recent NT kernels here: http://pythonsweetness.tumblr.com/post/169166980422/the-myst... and the original source for that report: https:&#x
445.
by rst 9y ago
One possible vector suggested by Matt Tait (pwnallthethings) on Twitter: if speculative operations can influence what the processor does with the cache, the results can be observed with cache timing attacks. If the branch predictor reads
446.
by rst 9y ago
"All" is taking things a little far -- the Apollo Saturn V stack was assembled vertically (as were the smaller Saturn IB rockets when launched from LC 39).
447.
by rst 9y ago
Blue already has at least three customers for New Glenn: http://spacenews.com/blue-origin-signs-up-third-customer-for...
448.
by rst 9y ago
Just glancing at the man page, atomic rollback kinda jumps out...
449.
by rst 9y ago
Particularly since a git repo, as a whole, isn't a functional data structure. The commits (and the graph in which they're embedded) are immutable, but the mapping between branch names and commits gets mutated all the time. (To s
450.
by rst 9y ago
Even more fun if the focus happens to be on a terminal window...

More ›