Slashdot is powered by your submissions, so send in your scoop

 



Forgot your password?
typodupeerror
×
Earth

The Story of My As-Yet-Unverified Impact Crater 250

tetrahedrassface writes "When I was very young, my dad took me on a trip to his parents' farm. He wanted to show me 'The Crater.' We walked a long way through second generation hardwoods and finally stood on the rim of a hole that has no equal in this area. As I grew up, I became more interested in The Crater, and would always tell friends about it. It is roughly 1,200 feet across and 120 feet deep, and has a strange vibe about it. When you walk up to it, you feel like something really big happened here. Either the mother of all caves is down there, or a large object smashed into this place a long, long time ago. I bought aerial photos when I was twelve and later sent images from GIS to a geologist at a local university. He pretty much laughed me out of his office, saying that it was a sinkhole. He did wish me luck, however. It may be sinkhole. Who knows? Last week I borrowed a metal detector and went poking around, and have found the strangest shrapnel pieces I have ever seen. They are composed of a metal that reacts strongly to acids. The largest piece so far reacted with tap water and dish-washing detergent. My second trip today yielded lots of strange new pieces of metal, and hopefully, one day the truth will be known. Backyard science is so much fun. And who knows; if it is indeed a cave, maybe Cerberus resides there."

Comment Re:OEM only - possibly, possibly not (Score 1) 548

TFA only speculates that this is intended for OEM installs.

I think that's what you want the article to be doing. I read this:

The good news for those concerned about privacy is that it appears for now Canonical is just interested in tracking the users of OEM installations -- those PCs that ship with Ubuntu by default such as from ZaReason, System76, and Dell.

To mean that, for now, they're only installing it on OEM computers. Also, it is a GPL'd bash script with nothing hidden. The comments at the top of the script say, "This is used for surveying how many original OEM installs are still existing on real machines." Somebody previously posted the source, search for "#!/bin/bash".

Comment Re:Well it is an alternate form of bumping (Score 2, Informative) 624

I think it's important to note that the Wired article didn't conclude their was a brigade, probably many individuals with individual agendas. Also, they didn't mention a side to which these buriers leaned.

Also, the Lyndon LaRouche "Plants" weren't plants at all, they wanted to be Tea Party members. Read the articles.

Comment Re:Fundamentally flawed development atmosphere (Score 1) 1231

Sorry for your troubles, I can't figure out why your sound/wireless/graphics worked so perfectly on the LiveCD (unavailable on Mac or Windows), but then didn't when you installed. Did you point out in your bug report how the LiveCD worked so well? That might have helped the bug folks track it down.

And I'm really sorry it happened to you again on the next release. Wow, intermittent freezes that didn't occur on the LiveCD either. I heard there was freezing caused by upgrading Ext3 partitions to Ext4, that you wouldn't have seen on the LiveCD. However, since Ext3 was the default and stable filesystem for LTS+2 (Jaunty), I doubt you would have done something that risky.

Again, I'm sorry for your troubles. I truly wish your experiences were as good as mine. For me, the LiveCD experience exactly predicted the final installation experience, except that the LiveCD was a bit slower.

Comment Re:Linux desktop is not dead. (Score 1) 757

Windows and OS X both would have autodetected the monitor and just made it work. Strike 1.

Maybe OS X, but definitely not Windows. Hell, I can't even scroll or click with my touchpad on Windows 7 out of the box. Linux detected my touchpad and set it up for me. Nice.

But sure, let's just open up the System->Preference->Display. Oops. Second monitor isn't there. Hm. Strike 2.

Except there's a little notification in the top bar saying something about drivers. Wonder what that does. Oh, it installs the Nvidia driver for me. I don't have to go to the site and download it. Cool. Restart and what do you know, System->Preferences->Display, Boom, 2 monitors.

Sounds like somebody thought they knew what they were doing, but didn't. They decided to do it the backwards Windows way, and it didn't work. Shocking.

Comment Re:No kidding (Score 1, Informative) 421

This is an excellent description of the issue. However, if the application writers, in this instance KDE, had synched after messing with extremely important files then the issue wouldn't occur.

The real issue is this, should the filesystem itself have to figure out whether it's dealing with important files or not. Or, should the application tell the filesystem the files are important by forcing the updates to be written. Since the former is impossible, the filesystem would have to treat ALL files as important and thus never be able to do the cool things the Ext4 can do that decrease wear on SSDs, save battery power, save disk space and speed things up.

Comment Re:LOL: Bug Report (Score 5, Insightful) 421

1) Modern filesystems are expected behave better than POSIX demands.

2) POSIX does not cover what should happen in a system crash at all.

3) The issue is not about saving data, but the atomicity of updates so that either the new data or the old data would be saved at all times.

4) fsync is not a solution, because ir forces the operation to complete *now*, which is counterproductive to write performance, cache coherence, laptop battery life, excessive SSD wear and a bunch of other reasons.

We don't need reliable data-on-disk-now, we need reliable old-or-new data without using a sledgehammer of fsync.

1. POSIX is an API. It tries not to force the filesystem into being anything at all. So, for instance, you can write a filesystem that waits to do writes more efficiently to cut down on the wear of SSDs.
2. Ext3 has a max 5 second delay. That means this bug exists in Ext3 as well.
3. If you have important data that if not written to the hard drive will cause catastrophic failure, then you use the part of the API that forces that write.
4. Atomicity does not guarantee the filesystem be synchronized with cache. It means that during the update no other process can alter the affected file and that after the update the change will be seen by all other processes.

We don't need a filesystem that sledgehammers each and every byte of data to the hard drive just in case there is a crash. What we DO need is a filesystem that can flexibly handle important data when told it is important, and less important data very efficiently.

What you are asking is that the filesystem be some kind of sentient all knowing being that can tell when data is important or not and then can write important data immediately and non-important data efficiently. I think that it is a little better to have the application be the one that knows when it's dealing with important data or not.

Comment Re:Heh. (Score 1) 781

Grammar nazis asside, this is not real serious benchmarking. It doesn't even take into account WHAT Windows 7 installs and WHAT Ubuntu installs. Is there more default software in Windows 7? Windows 7 is a DVD, isn't Ubuntu still on a CD?

From the article:

While some people might complain that we used the Ultimate editions of both Vista and Windows 7, they probably forget that the standard Ubuntu includes software such as an office suite as standard.

Slashdot Top Deals

Software production is assumed to be a line function, but it is run like a staff function. -- Paul Licker

Working...