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Shared Circles including Linus Torvalds

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Activity

Average numbers for the latest posts (max. 50 posts, posted within the last 4 weeks)

73
comments per post
17
reshares per post
705
+1's per post

866
characters per posting

Top posts in the last 50 posts

Most comments: 159

2016-06-03 21:28:50 (159 comments; 30 reshares; 640 +1s; )Open 

It used to be that the only thing that made Donald Trump look good was comparing him with the other Republican candidates. Because even a whiny five-year old megalomaniac looks positively stellar when compared to a religious nut who loves the death penalty.

Now, those other Republican candidates are gone. That should make for a saner baseline, no?

No.

These days, it's the anti-Trump protesters that make "the Donald" look good in comparison.

Christ, people. You're doing it wrong.

Most reshares: 235

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2016-05-19 18:59:59 (131 comments; 235 reshares; 1,532 +1s; )Open 

Hey, either Macs don't count much on the desktop, or we may have to finally lay the "year of the Linux desktop" joke to rest.

Most plusones: 1990

2016-09-17 18:56:56 (144 comments; 198 reshares; 1,990 +1s; )Open 

Today is the 25th anniversary of the Linux-0.01 release, I do believe.

Normally the anniversary is counted from the announcement email (August 25), because that was the actual public statement of intent. The 0.01 code drop happened a couple of weeks later, and wasn't publicly announced.

Latest 50 posts

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2016-11-29 21:55:20 (95 comments; 41 reshares; 1,336 +1s; )Open 

I'm special. Hear me roar.

I'm special. Hear me roar.___

2016-11-21 22:39:55 (62 comments; 7 reshares; 271 +1s; )Open 

So I've been a fairly happy "Project Fi" user for a while now, and a few weeks ago they started doing group plans too, so I thought I'd move a daughter or two over.

Setup was easy, but the level of just pure incompetence when actually mailing out the SIM-cards is scary.

I ordered a new SIM card on the 12th. On the 13th, they tell me it has shipped (good, good), using Fedex Smartpost. The tracking told me yesterday that the card should arrive today. Eh, ok, 8 days to get from California to Oregon, not great, but whatever - it's probably some "extra cheap saver" rate or whatever.

Today the tracking says "U.S. Postal Service will be delivering this shipment", and the scheduled delivery has moved to Wednesday.

Ten days? For a SIM-card?

Guys, if Amazon can ship just about anything in two days, you should be able to... more »

So I've been a fairly happy "Project Fi" user for a while now, and a few weeks ago they started doing group plans too, so I thought I'd move a daughter or two over.

Setup was easy, but the level of just pure incompetence when actually mailing out the SIM-cards is scary.

I ordered a new SIM card on the 12th. On the 13th, they tell me it has shipped (good, good), using Fedex Smartpost. The tracking told me yesterday that the card should arrive today. Eh, ok, 8 days to get from California to Oregon, not great, but whatever - it's probably some "extra cheap saver" rate or whatever.

Today the tracking says "U.S. Postal Service will be delivering this shipment", and the scheduled delivery has moved to Wednesday.

Ten days? For a SIM-card?

Guys, if Amazon can ship just about anything in two days, you should be able to do better.

And quite frankly, if "Fedex Smartpost" just means ":we'll use USPS for the last mile delivery, and we'll waste a week before we even get to that point", why are you bothering with those jokers? Just plain USPS would have been 47¢ and gotten the job done in a third of the time.

Can somebody explain to me what the "Smart" part in "Fedex Smartpost" is supposed to mean? Because I'm not getting it. It makes both Fedex and Google look like they just don't care.

Before I had realized the level of incompetence here, I had ordered another SIM card last week for another daughter, because she was going to be back from college for Thanksgiving, so switching her over while she was home was "convenient".

Yeah, I'll give you one guess when that SIM card is supposed to arrive...___

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2016-11-18 21:21:21 (61 comments; 3 reshares; 509 +1s; )Open 

"Build your own deck" they said. "Weekend project - it will be fun", they said. "Think of all the money you'll save".

Yeah, almost three weeks later, and it's finally done. Well, except for the fascia boards. And I still haven't screwed down the three boards in front of the hot tub door that need to be removable. But mostly "done". In between kernel builds and all the rain.

And no, I didn't pour the concrete myself. There are limits to my stupidity. I had the piers done before the kernel summit, and started building when I got back.

I think Tove was worried it wouldn't be done before all the kids are back for Thanksgiving.

"Build your own deck" they said. "Weekend project - it will be fun", they said. "Think of all the money you'll save".

Yeah, almost three weeks later, and it's finally done. Well, except for the fascia boards. And I still haven't screwed down the three boards in front of the hot tub door that need to be removable. But mostly "done". In between kernel builds and all the rain.

And no, I didn't pour the concrete myself. There are limits to my stupidity. I had the piers done before the kernel summit, and started building when I got back.

I think Tove was worried it wouldn't be done before all the kids are back for Thanksgiving.___

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2016-11-11 17:39:26 (27 comments; 10 reshares; 168 +1s; )Open 

Just yesterday I was thinking "What we really need is a wetter winter here in Oregon".

So imagine how happy I am to read that La Niña is coming.

Just yesterday I was thinking "What we really need is a wetter winter here in Oregon".

So imagine how happy I am to read that La Niña is coming.___

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2016-10-25 18:17:51 (77 comments; 17 reshares; 274 +1s; )Open 

We don't like to talk about it, but there's a dark secret to living in Oregon: it rains a lot during winter.

And fall.

And spring.

I know. This probably took you by surprise. "Rain in Oregon? Who knew?" you say.

"But", I also hear you say, "as a computer geek, why should you care? It's not like you do any outdoors activities anyway."

And you'd be quite right.

However, the rain has an insidious side effect: it is also very green, and there are lots of trees around. And in the fall (when it rains - keep up with me for a moment, I'm trying to make a point) those trees also tend to shed all their leaves all at once.

And they invariably shed them right in your gutters. The damn bastards seem to actively aim for them. Trees, man.

Anyway, being a geek, and avoiding that great... more »

We don't like to talk about it, but there's a dark secret to living in Oregon: it rains a lot during winter.

And fall.

And spring.

I know. This probably took you by surprise. "Rain in Oregon? Who knew?" you say.

"But", I also hear you say, "as a computer geek, why should you care? It's not like you do any outdoors activities anyway."

And you'd be quite right.

However, the rain has an insidious side effect: it is also very green, and there are lots of trees around. And in the fall (when it rains - keep up with me for a moment, I'm trying to make a point) those trees also tend to shed all their leaves all at once.

And they invariably shed them right in your gutters. The damn bastards seem to actively aim for them. Trees, man.

Anyway, being a geek, and avoiding that great outdoors that pisses water and leaves all over you, you usually don't really notice until it's much too late. Namely when the gutters are overflowing with crap.

At which point you have to go up on the roof and blow that stuff away. With a weak-ass electric rechargeable blower, because if you are anything like me, you're just not manly enough for one of those big back-mounted gas-powered ones.

It's an exercise in futility, I tell you. It's easy enough if you do it while the leaves are all dry an they blow away if you just look at them sternly. But that's usually not when you really need to do it.

I think I have found the solution.

Hear me roar.
___

2016-10-25 04:29:52 (0 comments; 22 reshares; 542 +1s; )Open 

Like +Jonathan Corbet I have voted - Oregon too does vote-by-mail, and I can put this whole sorry voting season behind me.

I might have written in "Giant Meteor 2016" on my ballot, since that was the only part of the whole election season that wasn't too depressing. But Giant Meteor doesn't care who votes for it, it either happens or does not.

May the best woman win.

Like +Jonathan Corbet I have voted - Oregon too does vote-by-mail, and I can put this whole sorry voting season behind me.

I might have written in "Giant Meteor 2016" on my ballot, since that was the only part of the whole election season that wasn't too depressing. But Giant Meteor doesn't care who votes for it, it either happens or does not.

May the best woman win.___

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2016-10-22 17:17:38 (135 comments; 44 reshares; 474 +1s; )Open 

I wonder why I see reporting like this only from NPR.

There's a lot of "crazy Duterte" stories from most of the media outlets, but this one is the only one I've seen that tried to explain the "why".

I wish more news tried to talk about the "why" rather than - or at least in addition to - the "what". Of course, even just the "what" is preferable to the opinion garbage from a lot of news outlets.

(Honesty in advertising: I'm not claiming to really know anything about the Philippines, but I found it interesting just how much this story stood out from all the other stories I've seen. Good job, NPR)

I wonder why I see reporting like this only from NPR.

There's a lot of "crazy Duterte" stories from most of the media outlets, but this one is the only one I've seen that tried to explain the "why".

I wish more news tried to talk about the "why" rather than - or at least in addition to - the "what". Of course, even just the "what" is preferable to the opinion garbage from a lot of news outlets.

(Honesty in advertising: I'm not claiming to really know anything about the Philippines, but I found it interesting just how much this story stood out from all the other stories I've seen. Good job, NPR)___

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2016-10-14 04:16:36 (157 comments; 120 reshares; 865 +1s; )Open 

Christ. What the hell is wrong with people who still believe in this craptrap?

Homeopathy is a scam, and people who believe in it are either uneducated or morons. Or both.

People, stop being gullible morons.

EDIT: guys, why are you talking about FDA, traditional medicine, or home remedies? That has nothing to do with Homeopathy.

"Homeopathy" means that some scumbag is actively trying to fool you into selling you proven snake-oil. It's not "placebo". It's a scam. A company that sells you homeopathic medicines is purely out to scam you. End of story.

Eat the shit all you want (or drink it, or slather it on your skin or whatever) to show the world what a moron you are, but don't put it on or in your baby, for chrissake!

Christ. What the hell is wrong with people who still believe in this craptrap?

Homeopathy is a scam, and people who believe in it are either uneducated or morons. Or both.

People, stop being gullible morons.

EDIT: guys, why are you talking about FDA, traditional medicine, or home remedies? That has nothing to do with Homeopathy.

"Homeopathy" means that some scumbag is actively trying to fool you into selling you proven snake-oil. It's not "placebo". It's a scam. A company that sells you homeopathic medicines is purely out to scam you. End of story.

Eat the shit all you want (or drink it, or slather it on your skin or whatever) to show the world what a moron you are, but don't put it on or in your baby, for chrissake!___

2016-10-10 20:34:21 (87 comments; 14 reshares; 689 +1s; )Open 

Hey guys - if you decide to make a fake internet identity and call yourself "Linus Torvalds" (yes, I know, really cool name), please don't use my email address as you do so.

That just means that I end up getting your stupid Jenkins reports when you do something stupid and your project no longer builds or passes your company tests. Or I get your chat records from your Brazilian telco discussions, or whatever.

Yes, yes, you may think it's a funny homage. Maybe it's not so much "identity theft" as just trying to give credit. But just don't do it, ok?

Hey guys - if you decide to make a fake internet identity and call yourself "Linus Torvalds" (yes, I know, really cool name), please don't use my email address as you do so.

That just means that I end up getting your stupid Jenkins reports when you do something stupid and your project no longer builds or passes your company tests. Or I get your chat records from your Brazilian telco discussions, or whatever.

Yes, yes, you may think it's a funny homage. Maybe it's not so much "identity theft" as just trying to give credit. But just don't do it, ok?___

2016-10-08 05:12:04 (51 comments; 35 reshares; 654 +1s; )Open 

Numerology.

Today we're half-way between Linux 4.0 and 5.0.

Why? It turns out that we've had a git object count pattern in the kernel, with the major version transitions happening fairly exactly at every two million objects in the git object database.

Put another way: v3.0 was released when the kernel git object database grew to two million objects, and v4.0 was released when we crossed over the 4M mark. So naturally, if you're into numerology, that unequivocally proves v5.0 will be when we reach 6M objects.

And today my git object database crossed over the 5M object mark.

Ergo, we are half-way to 5.0.

QED.

Numerology.

Today we're half-way between Linux 4.0 and 5.0.

Why? It turns out that we've had a git object count pattern in the kernel, with the major version transitions happening fairly exactly at every two million objects in the git object database.

Put another way: v3.0 was released when the kernel git object database grew to two million objects, and v4.0 was released when we crossed over the 4M mark. So naturally, if you're into numerology, that unequivocally proves v5.0 will be when we reach 6M objects.

And today my git object database crossed over the 5M object mark.

Ergo, we are half-way to 5.0.

QED.___

2016-10-07 23:15:33 (50 comments; 18 reshares; 306 +1s; )Open 

This is a possibly stupid question, and maybe it's just me that has ever wanted to do this, but I often end up having some terminal that is busy doing something (typically compiling the kernel, but it might be something else).

And I often end up wondering how long it's been churning away.

Yes, yes, I know about (and occasionally use) "ps kstart_time -ef". But it strikes me that it would be nicer to see in the terminal itself somehow. And while I can use PROMPT_COMMAND and do something like

PROMPT_COMMAND='printf "\033]0;$(date '+%X')\007"'

to show when the prompt was last printed in the terminal header, that isn't actually the same thing. It comes fairly close - it shows when the prompt was generated (so when the previous job finished), but not when I actually started a new job.

I'm guessing... more »

This is a possibly stupid question, and maybe it's just me that has ever wanted to do this, but I often end up having some terminal that is busy doing something (typically compiling the kernel, but it might be something else).

And I often end up wondering how long it's been churning away.

Yes, yes, I know about (and occasionally use) "ps kstart_time -ef". But it strikes me that it would be nicer to see in the terminal itself somehow. And while I can use PROMPT_COMMAND and do something like

PROMPT_COMMAND='printf "\033]0;$(date '+%X')\007"'

to show when the prompt was last printed in the terminal header, that isn't actually the same thing. It comes fairly close - it shows when the prompt was generated (so when the previous job finished), but not when I actually started a new job.

I'm guessing somebody else has wanted something like this in the past, and there's a way to make bash execute something before it starts each interactive command, instead of doing it when it prints the prompt. But my google-fu failed me.

Help me. <bats eyelashes>

EDIT: so Sajith in the comments points out that bash 4.4 (released three weeks ago) has the exact thing I was asking for. Life is good when people anticipate your issues.___

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2016-10-07 17:15:52 (29 comments; 83 reshares; 513 +1s; )Open 

___

posted image

2016-10-06 17:34:25 (48 comments; 32 reshares; 905 +1s; )Open 

Occasionally at conferences, I get the question about kernel developers getting older. And some people will happily point out how we're getting fatter too.

But then you see pictures like this, and it makes you think that we may be like good wines - getting better with age.

At least +Dirk Hohndel doesn't do the pornstashe thing any more. And the best my wife could say about me was "nice shoes".

I'm reminded how lucky we are that these kinds of pictures are hard to find. The current generation of awkward young people are going to be really screwed, with all their pictures being saved forever.

Occasionally at conferences, I get the question about kernel developers getting older. And some people will happily point out how we're getting fatter too.

But then you see pictures like this, and it makes you think that we may be like good wines - getting better with age.

At least +Dirk Hohndel doesn't do the pornstashe thing any more. And the best my wife could say about me was "nice shoes".

I'm reminded how lucky we are that these kinds of pictures are hard to find. The current generation of awkward young people are going to be really screwed, with all their pictures being saved forever.___

2016-09-17 18:56:56 (144 comments; 198 reshares; 1,990 +1s; )Open 

Today is the 25th anniversary of the Linux-0.01 release, I do believe.

Normally the anniversary is counted from the announcement email (August 25), because that was the actual public statement of intent. The 0.01 code drop happened a couple of weeks later, and wasn't publicly announced.

Today is the 25th anniversary of the Linux-0.01 release, I do believe.

Normally the anniversary is counted from the announcement email (August 25), because that was the actual public statement of intent. The 0.01 code drop happened a couple of weeks later, and wasn't publicly announced.___

posted image

2016-09-15 20:22:17 (13 comments; 10 reshares; 179 +1s; )Open 

It's interesting how people can recreate the dinosaur skin details etc.

At the same time, my inner five-year-old is severely disappointed in just what that silly thing looks like. If you don't want to see the whole thing, just go to 6:19. This is not the majestic creature I remember growing up thinking dinosaurs were.

It's interesting how people can recreate the dinosaur skin details etc.

At the same time, my inner five-year-old is severely disappointed in just what that silly thing looks like. If you don't want to see the whole thing, just go to 6:19. This is not the majestic creature I remember growing up thinking dinosaurs were.___

2016-09-10 23:13:55 (103 comments; 32 reshares; 561 +1s; )Open 

So four weeks ago I posted asking for input on a new laptop. As evidenced by my scaling factor rant, I now have one, and it's in the process of getting set up.

Before I mention which laptop I got, let me just re-iterate the things I personally care about, and what I don't particularly care about. Because my choice of laptop is obviously tied very much to that, and often what I care about may not be relevant to much anybody else.

First off: I don't use my laptop as a desktop replacement, and I only travel for a small handful of events each year. So for me, the laptop is a fairly specialized thing that doesn't get daily (or even weekly) use, so the main criteria are not some kind of "average daily use", but very much "travel use".

Which is why I end up caring a lot about it being fairly small and light, because I may end up carrying... more »

So four weeks ago I posted asking for input on a new laptop. As evidenced by my scaling factor rant, I now have one, and it's in the process of getting set up.

Before I mention which laptop I got, let me just re-iterate the things I personally care about, and what I don't particularly care about. Because my choice of laptop is obviously tied very much to that, and often what I care about may not be relevant to much anybody else.

First off: I don't use my laptop as a desktop replacement, and I only travel for a small handful of events each year. So for me, the laptop is a fairly specialized thing that doesn't get daily (or even weekly) use, so the main criteria are not some kind of "average daily use", but very much "travel use".

Which is why I end up caring a lot about it being fairly small and light, because I may end up carrying it around all day at a conference. I also want it to have a good screen, because by now I'm just used to it at my main desktop, and I want my text to be legible but small.

What I don't tend to care about is touch-screens, because my fingers are big and clumsy compared to the text I'm looking at (I also can't handle the smudges: maybe I just have particularly oily fingers, but I really don't want to touch that screen).

I also don't care deeply about some "all day battery life", because quite frankly, I can't recall the last time I didn't have access to power. I might not want to bother to plug it in for some quick check, but it's just not a big overwhelming issue. By the time battery life is in "more than a couple of hours", I just don't care very much any more.

So I see laptop reviews that say "do the HD screen instead of the QHD+ one, because you can't see the pixels anyway, and it is better for battery life", and I just go "who is this crazy joker?". That's not who I am.

And no, it's not just a phase.

I do want a reasonably powerful CPU, because when I'm traveling I still build the kernel a lot. I don't do my normal full "make allmodconfig" build between each pull request like I do at home, but I'd like to do it more often than I did with my previous laptop, which is actually (along with the screen) the main reason I wanted to upgrade.

So: good screen, but fairly small and light is primary. With as much CPU power that is reasonable within those primary concerns.

End result: I now have a Dell XPS13. In fact, I've set up two of them in the last month, one for Daniela that went off to college, and the second one now for myself.

The first one was the standard XPS13 that I opened up and replaced the wireless in. It wasn't too painful, but it was a bit annoying to have to do it. The Broadcom wireless really wasn't an option - you can google for it and see even the Windows users complaining about it. But I had a time limit for Daniela going off to school, and I could get a standard XPS13 and a new intel 8260 wireless module right away. And it also acted as my "let's test this out and see" machine.

The one I have now is the "Developer Edition" version that didn't need any surgery to just work.

Anyway, the good news is that there really were a lot of fairly reasonable machines out there now, and the XPS13 was by no means the only possible choice. My thin-and-light kind of requirements used to mean that I had to compromise a lot just a few years ago, but that's no longer the case.

Right now the XPS13 stands out due to the thin bezel, which really does maximize the screen size for the size of machine. That was really what made me pick it for Daniela in the first place. It just ends up hitting my two primary goals very well: small and portable, but with the biggest screen you can cram into that size.

But the Lenovo X1 Carbon got lots of votes, and it looks good too (and a matte screen really is better). The Samsung 9 Spin looked very classy, and if it wasn't for the bezel it might have been my first choice.

Daniela actually liked the HP spectre 13 x360, which I found interesting just because it comes in two versions: butt-ugly and good looking. It was interesting just how much the color choice matters. I thought the all-silver one was the ugliest thing around, while the exact same laptop in brown-with-gold-accents is actually fairly good-looking (and that was what Daniela liked about it too). But I guess that''s very personal.

The Lenovo Yoga 900 still looks like a good choice, and that's what I sent off my older daughter to college with last year. There's apparently a 910 coming out with thinner bezels, so the XPS13 isn't going to be the only kid on the block.

Anyway, there we go. So far the XPS13 looks like a very solid machine, as long as you get the intel wireless module to go with it (and it looks like the next generation should come with good wireless by default).

I haven't used the new laptop enough to really give a review yet, but I'll comment here if anything comes up.___

2016-09-10 22:16:50 (137 comments; 46 reshares; 736 +1s; )Open 

Setting up my new laptop. Am once again reminded that the crazy UI people continue to think that "DPI" is something meaningful. No it is not. The number of pixels matters. Not the DPI.

The new laptop has the same resolution as my desktop, but apparently because the laptop screen is smaller, gnome seems to decide on its own that I need an automatic scaling factor of 2, which blows up all the stupid things (window decorations, icons etc) to a ridiculous degree.

And obviously none of this is documented anywhere, nor are there any sane settings to edit it. Because "settings confuse people". So instead, you have to do this:

gsettings set org.gnome.desktop.interface scaling-factor 1

because unlike having some UI in the gnome settings center, that confuses nobody.

What the hell is wrong with UI people? What insane person thought... more »

Setting up my new laptop. Am once again reminded that the crazy UI people continue to think that "DPI" is something meaningful. No it is not. The number of pixels matters. Not the DPI.

The new laptop has the same resolution as my desktop, but apparently because the laptop screen is smaller, gnome seems to decide on its own that I need an automatic scaling factor of 2, which blows up all the stupid things (window decorations, icons etc) to a ridiculous degree.

And obviously none of this is documented anywhere, nor are there any sane settings to edit it. Because "settings confuse people". So instead, you have to do this:

gsettings set org.gnome.desktop.interface scaling-factor 1

because unlike having some UI in the gnome settings center, that confuses nobody.

What the hell is wrong with UI people? What insane person thought that it's a good idea to say "oh, you have a 13.3" QHD+ display, let's make it act completely different from your 28" QHD+ desktop display and waste all that precious screen real estate with stupid window borders and big fonts in your title bars?"

And especially if you have some heuristic tunable that makes random UI decisions for people, give me a simple setting in the control center that says "no, I really know better than you do".

But no.

Writing a G+ rant just to remind myself for next time this insanity happens.___

posted image

2016-09-07 17:43:34 (61 comments; 27 reshares; 701 +1s; )Open 

Why didn't they have costumes like this when I was a kid?

Why didn't they have costumes like this when I was a kid?___

2016-08-15 20:00:13 (26 comments; 12 reshares; 259 +1s; )Open 

Over the last few months, I've emailed a number people complaining about how their smtp setup was buggy, and as a result their emails lacked the DKIM signatures that the originating domain required them to have.

Gmail seems to have started actually checking DKIM signing (when DMARC records indicated it was required) earlier this year, and since almost nobody else seems to even bother checking it, there were a number of people who just didn't have the configuration right for DKIM signing. They generally didn't even realize that their email was marked as spam for some of us as a result.

It still happens (I sent out another email about bad smtp server configuration yesterday), but what used to be a fairly common problem is actually getting much better.

But as the lack of DKIM signing has became less common, what I noticed happening is that occasionally... more »

Over the last few months, I've emailed a number people complaining about how their smtp setup was buggy, and as a result their emails lacked the DKIM signatures that the originating domain required them to have.

Gmail seems to have started actually checking DKIM signing (when DMARC records indicated it was required) earlier this year, and since almost nobody else seems to even bother checking it, there were a number of people who just didn't have the configuration right for DKIM signing. They generally didn't even realize that their email was marked as spam for some of us as a result.

It still happens (I sent out another email about bad smtp server configuration yesterday), but what used to be a fairly common problem is actually getting much better.

But as the lack of DKIM signing has became less common, what I noticed happening is that occasionally (very very occasionally), I'd get an email that was properly signed by DKIM, but then failed the hash verification. There was no obvious pattern to it.

I finally figured out the pattern a few days ago: the kernel mailing list would rewrite quoted-printable emails by removing the QP and turning it into 8BIT. As a result, the DKIM body hash would no longer verify.

Since mailers generally only use quoted-printable when they have 8-bit content, and DKIM signing is fairly unusual to begin with, most emails by far would never trigger the problem. So only when you had the combination of a source host that required DKIM and an email that contained non-US-ASCII characters (usually due to a name, since we seldom have that in patches or discussion on lkml) would it get marked as spam.

David just applied a patch of mine to zmailer that hopefully fixes it for good (by disabling the QP rewriting if a DKIM signature was present).

Fingers crossed - I had no sane way to actually test the patch, so it might not actually work. The problem was unusual enough that it usually only triggered every few days.

If you send kernel mailing list emails from a broadcom.com, microsoft.com or seagate.com address (those are the main ones I've noticed have mandatory DKIM signing), you could try adding 8-bit characters in there just to test.

If you have nothing else, just add this to your signature:

"The majestik møøse is one of the mäni interesting furry animals in Sweden"

and let's see if all your emails get marked as spam or the untested patch actually works.___

2016-08-12 20:50:36 (142 comments; 11 reshares; 268 +1s; )Open 

Finally thinking of replacing my old Sony Vaio Pro 11. It has worked fine for almost three years, but there are better laptops out there now..

Since I build kernels on this thing, it needs to be a real Core i5 or i7, but my target weight is still around 1kg/2lbs. And I want a real keyboard, not some kind of silly convertible tablet.

I'm ok with 8GB/256GB of RAM/SSD. I've lived with 4GB when on the road for several years, I don't want to do that any more, but I also don't need huge amounts of RAM. I compile the kernel, I don't run big VM's or other odd things.

I've looked at the Asus UX305UA, and it looks almost perfect, except the QHD+ panel seems to be impossible to actually buy. And while a backlit keyboard isn't an absolute must, it is very much in the "good to have" category (unlike, say, a touchscreen, which is a complete waste... more »

Finally thinking of replacing my old Sony Vaio Pro 11. It has worked fine for almost three years, but there are better laptops out there now..

Since I build kernels on this thing, it needs to be a real Core i5 or i7, but my target weight is still around 1kg/2lbs. And I want a real keyboard, not some kind of silly convertible tablet.

I'm ok with 8GB/256GB of RAM/SSD. I've lived with 4GB when on the road for several years, I don't want to do that any more, but I also don't need huge amounts of RAM. I compile the kernel, I don't run big VM's or other odd things.

I've looked at the Asus UX305UA, and it looks almost perfect, except the QHD+ panel seems to be impossible to actually buy. And while a backlit keyboard isn't an absolute must, it is very much in the "good to have" category (unlike, say, a touchscreen, which is a complete waste of money for me).

The XPS13 always comes up, but Dell continues to destroy that laptop with the stupid "Dell Wireless", which is just a nasty OEM Broadcom solution. Yes, I'm aware of the developer edition, and yes, I'm aware that I can just fix it by switching out the wireless card myself.

But the developer edition doesn't actually have - or it is very well hidden - the "add to cart" on Dell.com (which negates the whole "look, Dell is a good guy, buy it!" argument) , and the "but you can switch it out" argument still doesn't fix the fact that I feel bad about buying crap. Sue me.

Dell, please get rid of the crappy "DW" wireless entirely. Or at least allow me to pick a good replacement at build time. Because as-is, your laptop choices look just nasty.

The Lenovo Yoga 900 still looks fairly good, but there are definitely quality assurance concerns when looking at all the reviews.

Suggestions? But please, keep the weight issue and the CPU requirements in mind - they aren't negotiable. If it's even a hair over 3lbs or has a Core-m CPU in it, just shut up about it and don't look like a fool. Ok?

Update: if you search for "xps13" and "linux" on dell.com, you get the old Developer Edition one. Which they don't sell any more. Changing the search terms to "ubuntu" instead of "linux" gets you the new one that they sell.

And on the xps13 page, the developer edition doesn't show up at all, because it's apparently a whole different SKU. Lovely. Anyway, I did finally find where Dell actually sells it, but for a while I thought they had stopped it entirely.___

2016-08-04 14:55:05 (12 comments; 1 reshares; 146 +1s; )Open 

Nature or nurture?

In a recent scientific experiment I uncovered data that may indicate that the dreaded "blurry fish butt syndrome" may have a genetic component.

I gave Daniela my GoPro for a recent dive, and she showed all the symptoms.

Hmm. More research needed.

Nature or nurture?

In a recent scientific experiment I uncovered data that may indicate that the dreaded "blurry fish butt syndrome" may have a genetic component.

I gave Daniela my GoPro for a recent dive, and she showed all the symptoms.

Hmm. More research needed.___

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2016-08-01 19:36:54 (30 comments; 5 reshares; 364 +1s; )Open 

All the locals were singularly unimpressed and looking at the silly tourists that were taking pictures of the iguana.

Or whatever it is.

All the locals were singularly unimpressed and looking at the silly tourists that were taking pictures of the iguana.

Or whatever it is.___

2016-07-31 00:35:29 (45 comments; 18 reshares; 462 +1s; )Open 

The Dream of the 90's is alive in Portland University.

Ahh, the joys of sending your kid off to college. In particular, the unbridled joy of college tuition offices.

You'd think it was enough that they want to have lots of money. No, they want to make it inconvenient too.

I just had to install Adobe acrobat reader because somebody is still using the absolutely insane Adobe-only crazy "secure" pdf (hah - If you make me install Adobe plugins, I really don't think you should talk about security).

And it's not like they don't know it's problematic. They have a big FAQ about how you have to do magic things on just about any OS and browser combination to be able to read that insane format. So they are clearly getting a lot of questions about it.

But instead of just fixing the broken format to be a modern standard pdf,... more »

The Dream of the 90's is alive in Portland University.

Ahh, the joys of sending your kid off to college. In particular, the unbridled joy of college tuition offices.

You'd think it was enough that they want to have lots of money. No, they want to make it inconvenient too.

I just had to install Adobe acrobat reader because somebody is still using the absolutely insane Adobe-only crazy "secure" pdf (hah - If you make me install Adobe plugins, I really don't think you should talk about security).

And it's not like they don't know it's problematic. They have a big FAQ about how you have to do magic things on just about any OS and browser combination to be able to read that insane format. So they are clearly getting a lot of questions about it.

But instead of just fixing the broken format to be a modern standard pdf, let's just inconvenience the people who pay for it all, shall we?

After having used acroread to turn the illegible pdf mess into postscript, and then used ps2pdf to turn it back into actually legible pdf again, the file also shrinks from 879kB to 121kB.

Christ.___

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2016-07-26 04:56:23 (22 comments; 10 reshares; 223 +1s; )Open 

I even found a few of the creatures Dirk took photos of.

As I said on the trip - it's not that I don't have a camera with me under-water. I have both a camera and somebody to press the button for me.

A few favorite pictures from our recent dive trip to Palau. 7 days on the Ocean Hunter I. 31 dives. More than 33 hours under water...
An amazing trip.___I even found a few of the creatures Dirk took photos of.

As I said on the trip - it's not that I don't have a camera with me under-water. I have both a camera and somebody to press the button for me.

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2016-07-07 20:58:45 (25 comments; 11 reshares; 466 +1s; )Open 

Visiting Patricia in San Francisco, and shamelessly raiding the github store.

I'm not going to be one of those cold tourists. 

Visiting Patricia in San Francisco, and shamelessly raiding the github store.

I'm not going to be one of those cold tourists. ___

2016-06-03 21:28:50 (159 comments; 30 reshares; 640 +1s; )Open 

It used to be that the only thing that made Donald Trump look good was comparing him with the other Republican candidates. Because even a whiny five-year old megalomaniac looks positively stellar when compared to a religious nut who loves the death penalty.

Now, those other Republican candidates are gone. That should make for a saner baseline, no?

No.

These days, it's the anti-Trump protesters that make "the Donald" look good in comparison.

Christ, people. You're doing it wrong.

It used to be that the only thing that made Donald Trump look good was comparing him with the other Republican candidates. Because even a whiny five-year old megalomaniac looks positively stellar when compared to a religious nut who loves the death penalty.

Now, those other Republican candidates are gone. That should make for a saner baseline, no?

No.

These days, it's the anti-Trump protesters that make "the Donald" look good in comparison.

Christ, people. You're doing it wrong.___

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2016-05-19 18:59:59 (131 comments; 235 reshares; 1,532 +1s; )Open 

Hey, either Macs don't count much on the desktop, or we may have to finally lay the "year of the Linux desktop" joke to rest.

Hey, either Macs don't count much on the desktop, or we may have to finally lay the "year of the Linux desktop" joke to rest.___

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2016-05-18 06:44:06 (27 comments; 2 reshares; 216 +1s; )Open 

The Who were in town...

The Who were in town...___

2016-05-17 19:11:12 (28 comments; 39 reshares; 435 +1s; )Open 

The new parallel lookup and readdir code from Al Viro just landed in -git.

This is a big deal: we've always serialized accesses to the same directory using the directory inode mutex, and while cached lookups (or lookups in different directories) scaled fine, that per-directory serialization could keep you from getting good performance on some loads.

I remember looking at some nasty samba load that +Andrew Tridgell had, where the serialized readdir caused tons of problems. That was over a decade ago. And it should finally be fixed now, although I suspect samba has lots of workarounds to just avoid the issue.

The new parallel lookup and readdir code from Al Viro just landed in -git.

This is a big deal: we've always serialized accesses to the same directory using the directory inode mutex, and while cached lookups (or lookups in different directories) scaled fine, that per-directory serialization could keep you from getting good performance on some loads.

I remember looking at some nasty samba load that +Andrew Tridgell had, where the serialized readdir caused tons of problems. That was over a decade ago. And it should finally be fixed now, although I suspect samba has lots of workarounds to just avoid the issue.___

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2016-05-16 18:24:57 (85 comments; 8 reshares; 334 +1s; )Open 

The neighbors had a small tree fall overnight (I think it's a golden chain, but my arboreal knowledge is non-existent).

Neither of us having anything as manly as a real chainsaw, I ended up helping him cut off the branches with my circular saw and a couple of long extension cords instead.

The neighbors had a small tree fall overnight (I think it's a golden chain, but my arboreal knowledge is non-existent).

Neither of us having anything as manly as a real chainsaw, I ended up helping him cut off the branches with my circular saw and a couple of long extension cords instead.___

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2016-05-06 04:14:34 (76 comments; 44 reshares; 399 +1s; )Open 

There's a fascinating (and pretty depressing) story over at LA Times about OxyContin.

The article itself is depressing, with he fixation on the dosing schedule apparently being so important from a marketing standpoint. Interesting.

The fact that the top comment (at least right now) then blames the addicted people makes it more depressing still, and wasn't nearly as surprising ;(

There's a fascinating (and pretty depressing) story over at LA Times about OxyContin.

The article itself is depressing, with he fixation on the dosing schedule apparently being so important from a marketing standpoint. Interesting.

The fact that the top comment (at least right now) then blames the addicted people makes it more depressing still, and wasn't nearly as surprising ;(___

2016-05-04 21:46:05 (39 comments; 10 reshares; 291 +1s; )Open 

I've lived with my cheap UHD Dell TN panel that I got for black Friday a year and a half ago. It was really cheap and really not very good, but I wanted the resolution and I felt it would last me until the good IPS panels came down in price.

Today is that day.

I had delayed and kind of hoped that I would have an OLED monitor by now (since I look at text all day, infinite contrast really would be nice), but I suspect that will be another year and a half wait for that next step.

But UHD IPS panels are pretty reasonable these days, and boy what a difference it makes. Much better color, and the electronics inside have improved too. No longer do I need to turn off dpms just because the old Dell panel would take ages to wake up and often not wake up reliably at all.

It's an LG 27" IPS panel in case anybody cares. It got delivered just an hour ago, but so... more »

I've lived with my cheap UHD Dell TN panel that I got for black Friday a year and a half ago. It was really cheap and really not very good, but I wanted the resolution and I felt it would last me until the good IPS panels came down in price.

Today is that day.

I had delayed and kind of hoped that I would have an OLED monitor by now (since I look at text all day, infinite contrast really would be nice), but I suspect that will be another year and a half wait for that next step.

But UHD IPS panels are pretty reasonable these days, and boy what a difference it makes. Much better color, and the electronics inside have improved too. No longer do I need to turn off dpms just because the old Dell panel would take ages to wake up and often not wake up reliably at all.

It's an LG 27" IPS panel in case anybody cares. It got delivered just an hour ago, but so far so great.___

2016-05-03 20:20:26 (57 comments; 19 reshares; 481 +1s; )Open 

Some days are more productive than others.

I just spent 15 minutes researching heavy duty dog poop bags on Amazon. And I was seriously considering just ordering multiple different brands to compare when I finally came to my senses.

Some days are more productive than others.

I just spent 15 minutes researching heavy duty dog poop bags on Amazon. And I was seriously considering just ordering multiple different brands to compare when I finally came to my senses.___

2016-04-25 19:48:37 (58 comments; 3 reshares; 409 +1s; )Open 

I got my 23andme report back.

I was kind of hoping for something interesting, but I guess this is one of those "it's better when it's boring" things. No interesting genetic disorders.

But now I know that I have blue eyes and very low chance of unibrow. Whew. All those mirrors weren't lying to me all those years, and it's not my wife sneakily plucking my brow while I'm asleep.

I'm also apparently 99.7% European, and likely to drink more coffee than average. Yeah, that didn't come as a big shock either.

I got my 23andme report back.

I was kind of hoping for something interesting, but I guess this is one of those "it's better when it's boring" things. No interesting genetic disorders.

But now I know that I have blue eyes and very low chance of unibrow. Whew. All those mirrors weren't lying to me all those years, and it's not my wife sneakily plucking my brow while I'm asleep.

I'm also apparently 99.7% European, and likely to drink more coffee than average. Yeah, that didn't come as a big shock either.___

2016-04-09 16:20:52 (32 comments; 20 reshares; 470 +1s; )Open 

I'm enjoying the Youtube mixup of the SpaceX CRS-8 first stage landing with Lonely Island's "I'm on a boat" song. Congrats to everybody involved.

I'm not very hip, so the only other time I've heard that song is when somebody in my poker group is mangling it (horribly). I think it works better for Elon Musk, but maybe that is because I'm not losing money.

I'm enjoying the Youtube mixup of the SpaceX CRS-8 first stage landing with Lonely Island's "I'm on a boat" song. Congrats to everybody involved.

I'm not very hip, so the only other time I've heard that song is when somebody in my poker group is mangling it (horribly). I think it works better for Elon Musk, but maybe that is because I'm not losing money.___

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2016-03-19 23:20:05 (70 comments; 68 reshares; 531 +1s; )Open 

So I wonder what the excuse is from the apologists that think we don't need ECC in the consumer space this time around?

If you are selling CPUs, and you "differentiate" your products around ECC, you should be ashamed of yourself.  It's not acceptable.

Yeah, I've complained about lack of ECC for over a decade now (you know who you are). There's always some f*cking excuse for why some SKU or other doesn't really "need" it.

Stop it with the excuses already. 

So I wonder what the excuse is from the apologists that think we don't need ECC in the consumer space this time around?

If you are selling CPUs, and you "differentiate" your products around ECC, you should be ashamed of yourself.  It's not acceptable.

Yeah, I've complained about lack of ECC for over a decade now (you know who you are). There's always some f*cking excuse for why some SKU or other doesn't really "need" it.

Stop it with the excuses already. ___

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2016-03-02 22:59:27 (37 comments; 17 reshares; 122 +1s; )Open 

Hey, I have a new math problem for G+ people.  This worked really well back a few years ago when I did the "figure out number of bytes from a bitmask efficiently", so let's see if somebody on G+ has the background to do a good job on a totally different math problem for a totally different open-source project.

This time, it's about gas compressibility in scuba diving, obviously for the +Subsurface project.

The issue is that scuba cylinders end up having a (small) gas compressibility factor difference from the ideal gas law, and it's noticeable enough that some people care.

For example, one of the most common cylinders, the AL80, fits 80 cubic feet of an ideal gas, but only about 77.4 cubic feet of actual air, because air at 3000 psi (the fill pressure of an AL80) has a "compressibility Z factor" of about 1.03.

And it turns outt... more »

Hey, I have a new math problem for G+ people.  This worked really well back a few years ago when I did the "figure out number of bytes from a bitmask efficiently", so let's see if somebody on G+ has the background to do a good job on a totally different math problem for a totally different open-source project.

This time, it's about gas compressibility in scuba diving, obviously for the +Subsurface project.

The issue is that scuba cylinders end up having a (small) gas compressibility factor difference from the ideal gas law, and it's noticeable enough that some people care.

For example, one of the most common cylinders, the AL80, fits 80 cubic feet of an ideal gas, but only about 77.4 cubic feet of actual air, because air at 3000 psi (the fill pressure of an AL80) has a "compressibility Z factor" of about 1.03.

And it turns out that there are many ways to get those compressibility factors, but they all have some problems.

 (a) ignore them. That's actually quite reasonable, but at higher pressures - but still relevant to scuba - the 3% error ends up being more like 10%.

 (b) use a table lookup. That's what we did for a while, and it works fine, for air. Take the air compressibility table at 300K from Wikipedia, do linear interpolation between points for pressure, and you get quite good results. But only for air.

 (c) use actual functions used by physicists. This is the next step we did, because one of the people involved is an actual physicist. The idea is that you can get the compressibility right for other gases too. Sadly, the common functions actually do pretty badly for the usual scuba gases and pressure ranges, probably because these are not ranges that most physicists care about.

 (d) use a least-square polynomial fit of the Wikipedia values. This gets you much prettier code, and good approximations, but gets us back to "just air", but at least in a prettier form than my disgusting table lookup.

 (e) something else.

My current idea for (e) is to do the same least-square fitting for the three relevant gases (Oxygen, Nitrogen and Helium) using the table at 

   http://www.baue.org/library/zfactor_table.php

and then just doing a linear interpolation of the compressibility of the different gases based on the actual gas mix.

Anyway, I realize this is pretty esoteric, but maybe there is somebody around on G+ that can tell whether that linear mix is a good idea or just horrible. 

Don't tell me about van der Waals equations or Redlich-Kwong. Our resident physicist already tried those. In the range we care about (temperature at about 20°C, pressure in the 1-350 bar range), they aren't actually sufficiently close to the experimental values to work..___

2016-02-29 17:32:43 (35 comments; 5 reshares; 215 +1s; )Open 

Went to the Bay Area for Daniela's gym meet over the weekend, and watched the local evening news on Saturday.

I'm convinced the discussion in the newsroom before their weather segment went something like this:

 "Should we kick some puppies onstage tonight?"

 "No, we did that last weekend. How do you feel about pentagrams and human sacrifice?"

 "Wait, I know - there are people from Portland in town. How about we make the whole weather segment be about how we're finally getting some much-needed rain? Let's look extra happy about it!"

 "Mwhahahahhhahh! Perfect!"

... and then they went on to do exactly that.

Bastards.

Went to the Bay Area for Daniela's gym meet over the weekend, and watched the local evening news on Saturday.

I'm convinced the discussion in the newsroom before their weather segment went something like this:

 "Should we kick some puppies onstage tonight?"

 "No, we did that last weekend. How do you feel about pentagrams and human sacrifice?"

 "Wait, I know - there are people from Portland in town. How about we make the whole weather segment be about how we're finally getting some much-needed rain? Let's look extra happy about it!"

 "Mwhahahahhhahh! Perfect!"

... and then they went on to do exactly that.

Bastards.___

2016-02-26 20:14:11 (58 comments; 20 reshares; 363 +1s; )Open 

Is "walking like a penguin" a good or bad thing?

The Trump quotes keep on coming in the 2016 Republican presidential primaries. Most of them are pretty clearly derogatory ("stupid" or "like a little baby"), but the most recent one where Romney apparently walks like a penguin struck me as pretty ambiguous.

But maybe it's just me that likes penguins. 

Or maybe Trump is a penguin fan too, and trying to cozy up to Romney.  He's done odder things. 

I'm enjoying the Republican discussions more than I would have ever expected.

Is "walking like a penguin" a good or bad thing?

The Trump quotes keep on coming in the 2016 Republican presidential primaries. Most of them are pretty clearly derogatory ("stupid" or "like a little baby"), but the most recent one where Romney apparently walks like a penguin struck me as pretty ambiguous.

But maybe it's just me that likes penguins. 

Or maybe Trump is a penguin fan too, and trying to cozy up to Romney.  He's done odder things. 

I'm enjoying the Republican discussions more than I would have ever expected.___

2016-02-10 23:34:59 (73 comments; 9 reshares; 299 +1s; )Open 

I'm looking at the Google Play Music family plan, because I'd like to make sure the kids end up listening to their music legally. 

However, that thing must be the absolutely worst documented thing ever. Either that, or it's the most mis-designed thing ever. So before I take that plunge, can somebody who uses it clarify which of the two it is, by answering this simple question for me:

Q: Can I actually sign up for the family plan (what $14.99/mo), without having to then worry about any mistaken purchases by the kids.

Don't get me wrong - it's no that I don't trust my kids (or my wife, heh) to behave. But every time I look at the FAQ for that thing, I end up struck by the fact that the whole "family payment plan" seems to be tragically misdesigned, and is a "family can randomly use the credit card information you put in" plan.more »

I'm looking at the Google Play Music family plan, because I'd like to make sure the kids end up listening to their music legally. 

However, that thing must be the absolutely worst documented thing ever. Either that, or it's the most mis-designed thing ever. So before I take that plunge, can somebody who uses it clarify which of the two it is, by answering this simple question for me:

Q: Can I actually sign up for the family plan (what $14.99/mo), without having to then worry about any mistaken purchases by the kids.

Don't get me wrong - it's no that I don't trust my kids (or my wife, heh) to behave. But every time I look at the FAQ for that thing, I end up struck by the fact that the whole "family payment plan" seems to be tragically misdesigned, and is a "family can randomly use the credit card information you put in" plan.

Yes, in-app purchases are restricted, but that seems to be the only thing. 

Maybe it's just the support pages that are garbage.  I can hardly complain about that, considering how much great documentation I write myself.

So please tell me it's just the docs that are crazy.

Because I can't imagine that anybody would be so stupid as to actually design a system the way it's documented.

I take that back. I can imagine that, which is why I'm not signing up without clarification..___

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2016-02-10 03:48:43 (21 comments; 14 reshares; 126 +1s; )Open 

The android mobile version of Subsurface is currently mostly about being able to visualize your dives (think of it like taking your logbook with you on your phone or tablet - perhaps to show the dive shop, perhaps to look up what the conditions were last time), but even in that limited form it is quite useful.

Subsurface-mobile for Android -- first beta

The Subsurface developer team is thrilled to announce the first beta release of our mobile app for Android.

Subsurface-mobile connects to your Subsurface cloud storage account and allows you to access your dive list from your mobile device. You can scroll through your dives, look at dive details and dive profiles, edit dives, even add new dives on your phone or tablet. After an initial sync Subsurface-mobile works offline, so no worries about being on a dive boat and not able to connect to the network - the data will be synced at the next opportunity when you are back within signal range.

Subsurface-mobile also includes the GPS tracking functionality of the old Subsurface companion app which allows you to collect precise GPS fixes for your dive sites.

At this point Subsurface-mobile will be most useful when used together with the existing Subsurface desktop application. Most notably, downloading dives from your dive computer is so far not possible from Subsurface-mobile (but that is on our to-do list for at least some classes of dive computers).

In order to try Subsurface mobile on your Android device simply opt in at this link: https://play.google.com/apps/testing/org.subsurfacedivelog.mobile

And don't forget to take a look at the user manual___The android mobile version of Subsurface is currently mostly about being able to visualize your dives (think of it like taking your logbook with you on your phone or tablet - perhaps to show the dive shop, perhaps to look up what the conditions were last time), but even in that limited form it is quite useful.

2016-02-06 00:07:19 (74 comments; 20 reshares; 360 +1s; )Open 

I just upgraded one of the kids' machines and decided to finally get one of the Intel NUCs (and the small M.2 version at that, because who wants rotational media? Certainly not me).. 

I have hardly even done more than installed things on it, but I'm already a big fan. I've always enjoyed the small desktop form factor, and used to use a Shuttle SFF for my own use and had several Mac Minis back when they were the smallest thing around.

The NUC is just a (much) better modern version of those. Add a M.2 SSD and some DDR4 RAM, and you have a really nice box that really has everything you need.

Ok, so I won't use it as a main desktop (I do want more CPU for my builds), and I'd love to see a version with two ethernet ports (for routing), so it's not like the NUC is ready to replace every box in the house.

But for a basic solid desktop with both... more »

I just upgraded one of the kids' machines and decided to finally get one of the Intel NUCs (and the small M.2 version at that, because who wants rotational media? Certainly not me).. 

I have hardly even done more than installed things on it, but I'm already a big fan. I've always enjoyed the small desktop form factor, and used to use a Shuttle SFF for my own use and had several Mac Minis back when they were the smallest thing around.

The NUC is just a (much) better modern version of those. Add a M.2 SSD and some DDR4 RAM, and you have a really nice box that really has everything you need.

Ok, so I won't use it as a main desktop (I do want more CPU for my builds), and I'd love to see a version with two ethernet ports (for routing), so it's not like the NUC is ready to replace every box in the house.

But for a basic solid desktop with both reasonable wired and wireless networking and perfectly fine graphics for non-gaming use, it really is a very lovely box.___

2016-01-31 23:29:07 (71 comments; 9 reshares; 285 +1s; )Open 

I've been crawling around in our crawlspace for the last week or so, trying to clean up our networking. I long ago bought a structured media enclosure for the crawlspace that is right next to the access door, but it hasn't really seen active use apart from the coax cable junction.

Until this week. When I decided to actually terminate the network cabling at a proper punch-down patch board, and actually mount the network switch properly in the cabinet rather than have it randomly dangling from all the cables.

I'm a horrible network engineer, so when things go wrong, I just assume I wired something badly. But it turns out that just because I suck at wiring, doesn't necessarily mean that somebody else doesn't suck even more. So far I've had three disasters while redoing the networking, but none of them actually turned out to be due to me wiring things wrong.... more »

I've been crawling around in our crawlspace for the last week or so, trying to clean up our networking. I long ago bought a structured media enclosure for the crawlspace that is right next to the access door, but it hasn't really seen active use apart from the coax cable junction.

Until this week. When I decided to actually terminate the network cabling at a proper punch-down patch board, and actually mount the network switch properly in the cabinet rather than have it randomly dangling from all the cables.

I'm a horrible network engineer, so when things go wrong, I just assume I wired something badly. But it turns out that just because I suck at wiring, doesn't necessarily mean that somebody else doesn't suck even more. So far I've had three disasters while redoing the networking, but none of them actually turned out to be due to me wiring things wrong.

First I tried to figure out why one of my UniFi AC access points simply would not connect at gigabit speeds. It would show up as "Connected (100 FDX)" in the UniFi control applet, and I just couldn't figure out why.

Now, it doesn't really matter - the 100Mbps connection to the AP is perfectly fine, but it just annoyed the hell out of me that my newly done cable to the mudroom ceiling would be limited to 100Mb speeds. 

It turns out that what looked like 100% identical PoE injectors weren't. The cabling was fine, but one of the AC Lite AP's had come with a GP-A240-050 adapter, while the other one was a GP-A240-050G. That "G" was what made one connect at gigabit speeds while the other didn't.

While debugging that, I noticed that my office only connected at 100Mbps too. No PoE adapter there, but I had changed that cable to come in through a punch-down patch board too, so I re-did the punch-down because clearly I must have screwed up. No change.

It turns out that apparently I had never connected at gigabit speeds in the first place, because the cable from the wall to the switch in my office was to blame. And it wasn't even one of the cables I had made myself, so it was just about the last thing I decided to test.

And yesterday, I cleaned up the closet where all this crawlspace activity actually comes out to the cable modem, and in the process our phone stopped working. I haven't done phone wiring before, but how the hell could I screw up a single pair? That takes a special kind of skill - the "short bus" kind of special.

Our crawlspace phone wiring is a huge mess, with an ungodly mix of the old-style black-red-green-yellow wiring, and more modern CAT5/UTP wiring. I'm used to the 568A/B confusion, but have never really done BRGY before, so I checked and re-checked my connections and couldn't find the problem.

In the end, I knew everything but the new keystone jack had worked at an earlier point, and I just decided that the punch-down must have failed. That RJ25 jack really looked questionable anyway, not at all like the quality RJ45 jacks I'm used to from doing networking.

So I went to Home Depot and got a new jack with proper color-coded punch downs around the sides, and now our phone works again.

So now everything works, the closet that has our cable modems looks clean and has a proper shelf for the modems rather than having them hanging by the cables coming out of the wall, and I'm mostly happy.

Except now that I've done the telephone cable thing, and have a proper punch down panel in the media enclosure, I have a hankering for fixing the phone cables in the crawlspace too.

Because right now all the phone jacks connect to where the phone company used to bring in the wire probably 20 years ago, way in the back of the crawl. And I could instead just get it to all connect in that proper panel that I now have...

I'm just not sure how much more time I want to spend in that crawl space. Even if it would be for a good cause.___

2016-01-29 00:51:46 (78 comments; 11 reshares; 345 +1s; )Open 

Judging by all the "worst company in America" stories, I was probably the only person in the country that didn't use to hate +XFINITY. They hadn't screwed up once.

Until now.

Because of the lack of problems with Internet and TV, about a month ago I switched over voice to them too, since the traditional landline phone service here has had the box at the street flooded pretty much every year, with resulting grounding problems and horrible hiss etc.

Our voice line works fine. But thanks to XFINITY apparently happily selling their number database to scammers, we're now absolutely inundated with scam calls. As in "several times a day".  Microsoft support, IRS, you name it.

Christ-on-a-stick how I hate phone scammers. And now, thanks to being an enabler, I hate your guts too, XFINITY. 

Judging by all the "worst company in America" stories, I was probably the only person in the country that didn't use to hate +XFINITY. They hadn't screwed up once.

Until now.

Because of the lack of problems with Internet and TV, about a month ago I switched over voice to them too, since the traditional landline phone service here has had the box at the street flooded pretty much every year, with resulting grounding problems and horrible hiss etc.

Our voice line works fine. But thanks to XFINITY apparently happily selling their number database to scammers, we're now absolutely inundated with scam calls. As in "several times a day".  Microsoft support, IRS, you name it.

Christ-on-a-stick how I hate phone scammers. And now, thanks to being an enabler, I hate your guts too, XFINITY. ___

2016-01-28 00:45:01 (86 comments; 16 reshares; 347 +1s; )Open 

So, completely hypothetical question... 

Let's say that you were less than gifted, and had a UniFi AC Lite AP that you hadn't mounted in the ceiling because you're really lazy and didn't have your house wired to the right location.

But rather than attach the mounting plate to the back of the AP to keep track of it, you'd misplace it and probably throw it away.. Because, as mentioned, you're about as stupid as a doorknob.

Now, let's further imagine that you finally did the whole crawlspace and attic thing to get a cable where you wanted it to go.

How would you now mount it, having lost the mounting hardware?

This is all entirely hypothetical, of course. I wouldn't do something that stupid. I'm just asking for a good friend.

Edit: sticky velcro it is. Looks very professional, not at all like it was done by... more »

So, completely hypothetical question... 

Let's say that you were less than gifted, and had a UniFi AC Lite AP that you hadn't mounted in the ceiling because you're really lazy and didn't have your house wired to the right location.

But rather than attach the mounting plate to the back of the AP to keep track of it, you'd misplace it and probably throw it away.. Because, as mentioned, you're about as stupid as a doorknob.

Now, let's further imagine that you finally did the whole crawlspace and attic thing to get a cable where you wanted it to go.

How would you now mount it, having lost the mounting hardware?

This is all entirely hypothetical, of course. I wouldn't do something that stupid. I'm just asking for a good friend.

Edit: sticky velcro it is. Looks very professional, not at all like it was done by some birdbrained yokel. Thanks, people.___

posted image

2016-01-19 00:31:49 (61 comments; 10 reshares; 752 +1s; )Open 

Some people wanted video of the RC car in action.

It's a bit delayed - first by the merge window (which is still going on, but today I'm almost caught up), and by me being sick for a couple of days.

I decided to just put a GoPro on the car rather than ask a family member to try to take video of it. Of course, the grass is wet and that impacted the video more than I thought it would. Oh well.

.. and I realize that just driving around on grass is not very exciting. With a GoPro, the car should make incredible stunt jumps and soar over the environment. Tough. If you wanted that, you should have asked somebody competent.

Some people wanted video of the RC car in action.

It's a bit delayed - first by the merge window (which is still going on, but today I'm almost caught up), and by me being sick for a couple of days.

I decided to just put a GoPro on the car rather than ask a family member to try to take video of it. Of course, the grass is wet and that impacted the video more than I thought it would. Oh well.

.. and I realize that just driving around on grass is not very exciting. With a GoPro, the car should make incredible stunt jumps and soar over the environment. Tough. If you wanted that, you should have asked somebody competent.___

2016-01-18 00:14:30 (34 comments; 9 reshares; 241 +1s; )Open 

Today's observation: I can get custom clip-on sunglasses for just about any pair of glasses I looked at. But can I get custom flip-down reading glasses? No.

#dorkworldproblems

Today's observation: I can get custom clip-on sunglasses for just about any pair of glasses I looked at. But can I get custom flip-down reading glasses? No.

#dorkworldproblems___

posted image

2016-01-13 04:08:02 (88 comments; 15 reshares; 987 +1s; )Open 

Nothing says "good taste" and "professional" quite like a bad paint job in iridescent purple/pink/gold.

Slap a couple of stickers on it, and you're done.

Nothing says "good taste" and "professional" quite like a bad paint job in iridescent purple/pink/gold.

Slap a couple of stickers on it, and you're done.___

posted image

2016-01-10 02:16:00 (41 comments; 21 reshares; 691 +1s; )Open 

You know the drill by now..

So it's all working. This is not necessarily all that tuned, but at least it's in fairly good driving shape. And with the throttle travel set to just 33%, I can even control it reasonably.

Fixed since yesterday: front right shock placement, getting rid of ridiculous toe-out, reasonable cable management and the ESC is now taped down and stable. Also, the sensor wire is now actually connected - the stock 200mm sensor wire was too short for the kitty-corner routing, so yesterday the motor was sensorless. Today I got a 300mm sensor wire and got that wired up too.

I also decided that I really couldn't live with the DX2E radio, and upgraded to a DX4C. Which allowed me to do a much better job of trimming the steering servo, and also made the whole throttle travel adjustment much more reasonable.

On the whole, I still suck as a RC... more »

You know the drill by now..

So it's all working. This is not necessarily all that tuned, but at least it's in fairly good driving shape. And with the throttle travel set to just 33%, I can even control it reasonably.

Fixed since yesterday: front right shock placement, getting rid of ridiculous toe-out, reasonable cable management and the ESC is now taped down and stable. Also, the sensor wire is now actually connected - the stock 200mm sensor wire was too short for the kitty-corner routing, so yesterday the motor was sensorless. Today I got a 300mm sensor wire and got that wired up too.

I also decided that I really couldn't live with the DX2E radio, and upgraded to a DX4C. Which allowed me to do a much better job of trimming the steering servo, and also made the whole throttle travel adjustment much more reasonable.

On the whole, I still suck as a RC driver, but I'm pretty happy with the build. I should paint the body, but I already know I never will. I might get some vinyl decals instead - I do need to cover things up (for when I lose control and the thing flies through the air and lands awkwardly), and the clear plastic body is just unforgivably ugly.

Comments on the parts:

- the kit itself (Team Losi 8IGHT-E 3.0) was quality parts.

- the build instructions were reasonable: I definitely remember much worse (think Japanese kits - often very good kits, but the instructions may be wonderful, but when you don't speak the language it can still get rather challenging). But there were places where the illustrations really weren't all that wonderful, and sometimes just downright wrong. Not unexpected.

- the kit tools are just nasty. If I really wanted to complain about something, it would be about the insane mix of imperial and metric hex nut choices. Please just make everything metric! When you have six different hex nut sizes, and some of them are metric, and others are not, it's just nasty. Torx would be even better, and not have the whole question of metric or crazy.

- The DX2E radio was a mistake. It's just not a good radio.

- the Tekin ESC and motor may be quality, but they reminded me how bad I am at soldering. Christ. That just made me feel bad. Put a soldering iron in my hands, and the end result looks like a monkey on crack had done it.

But a really fun build. I'll be able to play with it a bit tomorrow, before it's time to go back to kernel programming.___

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2016-01-09 08:01:28 (48 comments; 23 reshares; 885 +1s; )Open 

RC Build - day three

I didn't have as much time as I'd want, since it's Friday before a release, and people sending me in the last few pull requests were harshing my RC mellow. 

Plus I went back to see what was wrong with the front assembly, and figured out that I hadn't tightened down the servo saver nut enough, causing it to drag on the base plate when turning the steering.

As a result, please ignore the lack of cable management, and the fact that the ESC is just flopping around rather than being safely fastened. Oh, and that neither the spoiler nor the body cover is in place.

But this was enough to verify that the car works. Yay!

Of course, as expected, it's inhumanly fast, despite my smaller pinion gear. Can't really test it indoors, and it's dark outside. But I got tires that should be ok on grass, so tomorrow I'll... more »

RC Build - day three

I didn't have as much time as I'd want, since it's Friday before a release, and people sending me in the last few pull requests were harshing my RC mellow. 

Plus I went back to see what was wrong with the front assembly, and figured out that I hadn't tightened down the servo saver nut enough, causing it to drag on the base plate when turning the steering.

As a result, please ignore the lack of cable management, and the fact that the ESC is just flopping around rather than being safely fastened. Oh, and that neither the spoiler nor the body cover is in place.

But this was enough to verify that the car works. Yay!

Of course, as expected, it's inhumanly fast, despite my smaller pinion gear. Can't really test it indoors, and it's dark outside. But I got tires that should be ok on grass, so tomorrow I'll hopefully have it calibrated, cables managed, ESC taped down, and ready to actually take for a run.

And I'll have to figure out what the manual setting for the ESC is for "go slow" mode.___

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