cnvogel

59 ms·

481.
by cnvogel 12y ago
The incredible precision with which the two spheres mentioned in the article have been manufactured sure is mind-boggling. But I think the article itself is a good example for what I find pretty annoying in popular presentation of quantitat
482.
by cnvogel 12y ago
I was using (two years ago, the last time I played with them) a freescale provided 2.6 kernel that just hasn't been upgraded, and the old mentor-graphics/code-sourcery tool-chain. Together with busybox, I was able to get a basic s
483.
by cnvogel 12y ago
I still have some ColdFires in an embedded product of the company I work in. The biggest chips even have a full-blown MMU built in. Can be made to run Linux (2.6.x.) just fine, but the toolchains (e.g. gcc) seem to have somewhat bit-rottet,
484.
by cnvogel 12y ago
I don't know by heart about the versions you quoted, but it might just be that some of the user visible changes have been hidden from you for the sake of not irritating users.
485.
by cnvogel 12y ago
Or in software (Linux): # cd /sys/bus/usb/devices # for n in usb* ; do echo 0 >$n/authorized_default ; done ...so that no drivers or userspace programs are allowed to communicate with any newly conne
486.
by cnvogel 12y ago
Probably nothing. {taking aside performance issues when you run into the thousands of parallel connections} I personally prefer the old-school async approach, because there you are forced to explicitly manage your connections' state, a
487.
by cnvogel 12y ago
But it solves the problem of you, after some growth, having received several distinct v4/24s, instead of one huge v6/64...
488.
by cnvogel 12y ago
I agree that the current default config in popular operating systems (I.e. what normal non technical people use) is insecure and needs to be fixed. It's just that the defense, in my opinion, is not difficult at all. The main attack vec
489.
by cnvogel 12y ago
No, USB keyboards (or mice) can't. That's why some keyloggers use a certain sequence of capslock/numlock/scroll-lock presses to trigger output of a menu or the stored data: The status of the corresponding LEDs is the onl
490.
by cnvogel 12y ago
I think the "no effective defense" slide (#20) is kind of disappointing. Their whole talk, for me, circles around the "someone plugs in a USB device with surprising functionality" narrative... And there are two possible
491.
by cnvogel 12y ago
...keep in mind that a USB device can be both, or more...
492.
by cnvogel 12y ago
Exactly. ...here's the table for command accesses on DDR4, including the mode register you referred to. http://en.wikipedia.org/wiki/DDR4_SDRAM#Command_encoding
493.
by cnvogel 12y ago
While most smartphones, theoretically, could get their time from GPS... do any use this method? As far as I know, my Android handsets get their time via NTP. Ironically, often a misconfigured NTP server screws up GPS fixes (it somehow see
494.
by cnvogel 12y ago
Your scheme could probably be implemented using certificate based SSH: Your users log onto a CA which gives out user-certificates with a specified lifetime, they copy that to their desktop-machine(s), or maybe add it to a ssh-agent like int
495.
by cnvogel 12y ago
For future bugs: Don't send random emails to people in the company, most people can't be held accountable for mishandling bug-reports (or ignoring them). Look up the contact to send non-conformance reports in the user-manual of th
496.
by cnvogel 12y ago
Yes, a small link to the LM741 would have helped. Or maybe even a blown up 1:1 pinout, such as with the discrete 555: http://www.evilmadscientist.com/2013/555-kit/
497.
by cnvogel 12y ago
Before deciding on a particular evaluation board, check how far they are supported by the "free" (as in beer) synthesis tools. The high-end chips are almost always excluded, but sometimes random low-end or retired parts, too! Also
498.
by cnvogel 12y ago
While I share your skepticism regarding the numbers quoted by the original article, a few remarks about the cosmic muons: I think you are overestimating the cosmic muon flux quite a bit, see the particle data book for the discussion of cosm
499.
by cnvogel 12y ago
Look for "i2s" modules. E.g. there's one for ~20EUR that adds a stereo ADC/DAC (e.g. also usable for the raspberry pi). It has a "i2s" interface which is the canonical way to interface with audio ADCs/DACs
500.
by cnvogel 12y ago
This has already been posted to a forum, as a sidenote, when people were still expecting Edward Snowden to fly to Cuba, a year ago! http://www.radarspotters.eu/forum/index.php?topic=7660.0 "Re: Snowden's SVO
501.
by cnvogel 12y ago
I wholeheartly agree with ❝devices people depend on to keep them alive would be running a -- version of the Linux kernel with anything unnecessary stripped out❞. But the part with a ❝ modified version (...) and probably a lot of custom stu
502.
by cnvogel 12y ago
Not everyone writes code for a critical Linux-based life support system. Very often it's just people who want to have a 7-segment LED display show the number of unread emails, or get a soundcard running, something along these lines. An
503.
by cnvogel 12y ago
I don't want to belittle the work of Mr Kane, but your pdf mainly refers to him as having an administrative role, less so am technical one. But then the original article about Easton mentions him having received an award as part of the
504.
by cnvogel 12y ago
Quoting your first link [ http://www.realhd-audio.com/?p=2197 ]... ❝Of course, lots of CDs were released with the original 44.056 kHz rate simple reclocked at 44.1 kHz. This resulted in a very slight speed increase AND a pitc
505.
by cnvogel 12y ago
Well... using the new “nftables” packet filter, this will be the "normal" way of packet filtering. So, yes, please! ☺ http://netfilter.org/projects/nftables/ ❝Pseudo-state machine in kernel-space: the us
506.
by cnvogel 12y ago
Regarding Tek("Tektronix")-Graphics, here's an animated gif showing Tek4014 graphics... http://phk.freebsd.dk/AducLoran/animation2.gif ...part of a Loran-C receiver made by Poul-Henning Kamp which aparen
507.
by cnvogel 12y ago
...but the whole thing break down as soon as distinct teams are taking care of catering and checking the venues floor's mechanical load specs, so using this indicator only makes sense as long as the venues (and the teams working in the
508.
by cnvogel 12y ago
I think you could put the "EICAR Test String" easily in a lot of databases, maybe as the answer to a security question, a special "delivery instruction"... http://www.eicar.org/86-0-Intended-use.html I
509.
by cnvogel 12y ago
The relocation mechanism is used for either pic or non-pic code. If parts of your code reside in different compilation units (.c files), there need to be a way to tell the linker how to jump from one to the other, even if the final program
510.
by cnvogel 12y ago
That's objdump's default format when outputting relocations together with the disassembly. As you have already found out, the code is compiled with dummy values for the actual addresses being accessed or jumped to, and the reloaca

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