Well that was an unproductive week. Maybe I can do something interesting over the weekend? Nope, looks like I get to run around after the kids and do household chores.

Fortunately the interweb is here to entertain you! I am sure most of you have already seen it but the Muppets doing bohemian rhapsody is fun. The Nottingham university scientists explaining the small hotrod collider is amusing and two girls, one uke is safe for work.

Unfortunately there have been other happenings this week which are not so amusing, the extensive flooding in parts of the UK has caused many people a great deal of harm and in one case a policeman, protecting others, was swept to his death from a collapsing bridge.

Unfortunately due to a confluence of events I will not be able to attend the Bug Squashing Party (BSP) in Cambridge this weekend as I had originally intended. I do hope to be able to contribute some work on Sunday from here.

The story behind it Recently, I decided to set up a subscription with a VoIP provider, Phonzo, here in Norway. On their webpage, Phonzo advertised a VoIP service which actually gave you the SIP information and allowed the user to connect their own equipment to this service. That s really cool , I thought. I can play with Asterisk on the PSTN now! . They also advertised an offer with rent of a Linksys SPA2102 included, at a very affordable rate. Now, I suspected that the box might be locked as I d heard they were with some providers so I searched all over their webpage for any hint that it might be. None was to be found and since they included the specific model designation of the adapter rather than mentioning a generic Analogue Telephone Adapter , I basically assumed it wouldn t be crippled. But when it did arrive (impeccable delivery time, and telephony worked out of the box, btw), I found to my dismay that the box was indeed locked. So I sent a polite email to customer service, saying basically that I know this is a matter mostly interesting to enthusiasts, but they ve advertised an SPA2102 , and what I have receieved is a crippled SPA2102 . They basically replied It says rent , so it belongs to us. I replied Renting does not exempt you from marketing laws; you ve sold me something else than what I paid for . I got the reply: We can t open it, it contains sensitive information and it s not crippled, it s optimized for Phonzo service[sic] (!). Yeah, that s really what they said. A few more emails back and forth, and nothing of value came forth. When I received a letter from customer service saying Stop your nonsense, we re providing you a service and the adapter is a part of it I realized I wasn t getting anywhere there. I ve sent an email to the address in the SSL certificate (who also seems to be one of the founders) hoping I d get in touch with someone of relevance, but I don t have great hopes. (There s a copy of the correspondance in Norwegian, if you re interested.) So over to my plan B. The Linksys SPA2102 has two interfaces for an administrator: The first is the HTTP interface bog-standard, with an admin password. The second is the Interactive Voice Response menu you know the kind, Press 1 for x, 2 for y, . Now, this menu has several different options, including one to enable HTTP access on the WAN port . By default, this option is set to False, and changing it requires an administrator password. But how do you enter an alphanumeric password on a DTMF dialpad? Aha the admin passnumber is derived from the admin password! The mapping is 1=1, [2ABCabc] = 2, [3DEFdef] = 3, , (everything else) = 0. This reduces the keyspace quite dramatically! So basically, what I ve done is kludged together a shell script which tries the different combinations and sounds them out using a software DTMF tone generator, with earphones serving as acoustic couplers. (For now, I ve skipped numbers containing a 1 . The number 1 only represents itself, and thus its value is quite low.) It then tries port 80 on its WAN IP every 100 attempts to see if a passnumber has succeeded. The shellscript is accessible here: http://simula.gunkies.org/~toresbe/dtmfbruteforce.bash. The phone adapter has two lines, but the second one is locked by Phonzo however, it is not possible to disable the IVR menu on this thing, so I have full use of the box while this is happening. (It nearly goes without saying that I ve spoofed the DNS so it connects to my Asterisk box. ) I m now averaging about one passkey per second. According to my calculations of each passkey representing the number of symbols per digit raised to the power of the number of digits, I am trying 16807 passwords per second and will be trying 117649 passwords per second when I get to six digits. I have a quite technical readership so please do correct me in the comments if I ve made an error in either the calculations or anywhere else. If there are any Phonzo users out there with an SPA2102, I would very much appreciate it if you contacted me brute force works a whole lot better when it s parallelized. I am currently at #302362. I have not yet been contacted by anyone in the same situation.

This is it. We know the faces of people who will count in Europe during the 2009-2014 period. And we can count on them to make the EU weigh even less than it did until now. Jos Manuel Dur o Barroso, president of the European Commission. For 5 years, this ultra-liberal brought in his fanatic views of the free market, leading to unprecedented removals of regulations and legislations that could prevent large corporations to extort money from citizens. He holds a non-negligible responsibility on the (still unsolved) bank crisis of 2007. Yet, citizens voted en masse earlier this year for the EPP all across Europe, leading to his renewal. You get the commission you deserve. Herman Van Rompuy, president of the European Council. This is no secret that this transparent non-leader was the choice of Sarkozy after Tony Blair turned out to be an unsustainable choice. Yet, none of the 26 other members of the Council dared to raise a single finger against this choice. Sarkozy has completely lost his credit in France, but that doesn t prevent this council of cowards from trusting him, apparently. It s not as if there weren t good candidates, like Jean-Claude Juncker or Vaira V e-Freiberga. But having a competent, Europe-friendly president who actually knows his files and speaks many languages would have cast shadows on those who don t (see below). Catherine Ashton, foreign ministry of the EU. If there was any worse possible choice, I don t know which. This was the only position supposed to be affected to a socialist. And since the Labour party is still member of the PASD, despite their insane liberal economic policy and their full-scale paranoia leading to unprecedented freedom hunting in the UK, the position was given to someone from this party. And among them, they chose a person with a reputation of sloppiness and incompetence, who doesn t speak correctly a single foreign language. It is probable that, just like Van Rompuy s going to be Sarkozy s puppet, she s going to be the UK Foreign Office s servant. And we continentals all love the Foreign Office s policy, which is often in complete opposition to what the rest of Europe feels like. Jerzy Buzek, president of the European Parliament. You don t know him? Neither do I. A weak parliament goes with a weak parliament president. This way, the European Council has its hands free for behind-the-curtains arrangements, rather than letting the citizens representatives take action. Martin Schultz, president of the PASD group at the European Parliament. In order to ensure his place as president of the Parliament for the second half of the period, he betrayed his own people, and accepted any rotten compromise the EPP would propose for the key positions. Socialists have never been so weak in Brussels, and the total absence of leadership has something to do with it. Makes you proud to be European, heh? And of course you already know the real faces of Europe for the next years. Sarkozy, Merkel, Berlusconi, Brown. The main leaders from Western Europe, with their rotten governments who swore to slay any of the remaining personal freedoms in each of their countries. What a great image for EU in the world. What a great example to set. But again, you get the leaders you deserve. That s the whole point of democracy.

It looks like my post about bugs in Ubuntu has received a bit more attention than I expected for few lines of ranting :-). Most interesting reactions came to Lucas Nussbaum's blog. There were nice explanations how it is supposed to work, but the problem is that people out there can not manage that amount of bugs. It is possible, that for some core packages, they manage to do the job. However most bug reports will probably go to some leaf packages, which are not that important, but lot of people use them. I started to interest in bugs in Ubuntu when I noticed that there is some huge number of bugs linked on phpMyAdmin's PTS page. There was something like 50 too much bugs. After quick look I could see that most of them are duplicates. After little fight with ajaxy interface, I even managed to mark most of them as duplicates and fix it in Debian package. But as somebody with no knowledge of Ubuntu (and not willing to learn internals of yet another distribution, I think Debian and OpenSUSE is enough), I really have no idea what could be done to push some bug fix to existing release. So once some Ubuntu release (The Lucid Lynx in this case) got new version, I marked the bug as fixed. This is probably not that nice to users, but somebody from Ubuntu community should take care of them. Off-topic PS: If anybody is interested in Google Wave invitations, just write me an email, I currently have 15 without any use.

These days, something happened to one of my external USB drives that I so far only knew from ReiserFS (which I since called ReisswolFS, German word play on "shredder" ...). But, it's not ext3 which I blame.Short story what happened:

• Resumed the system from 'suspend'.
• I copied some files onto the first file system.
• I copied the same files to a second external disk (dual backup...)
• I copied some files from the first disk, which caused an access-beyond-end-of-disk, mounting the filesystem read only
• Unmounted the filesystem, started e2fsck
• Started copying the files from the secondary filesystem
• Got the same error on the second disk.
• Cancelled e2fsck doing more damage to the first disk.
• Shutdown and reboot
• Memcheck, three iterations. Nothing.
• Checked second disk, no errors in filesystem (!), copied the files I had issues accessing just fine.
• Filesystem on disk #1 seriously trashed.
• Had ext2fsck try to recover filesystem on disk #1
• Pretty much all data on disk #1 is now in lost+found, it seems as if all major folders were corrupted. Lots of corrupted file entries (character devices with random permissions and numbers) there, too.

What I will do now:

• Reformat disk #1, and restore it from the other backup (Extra backup for teh win! I also have a 3rd copy of about 2 months ago off-site)

As you can see, something was wrong with the system, not with the file system.I have a strong suspect to have caused this. In case you wondered why I included "resumed from suspend" above: I've been having system stability issues with resume ever since upgrading to the Intel driver 2.9.0 and KMS (Debian unstable+testing) with kernels up to 2.6.31. In about 1 out of 5 resumes, I get a Xorg or system lockup after anything from 1 to 60 minutes. Sometimes I also experience video corruption after a few minutes, trashing some terminal emulation until the next redraw. Just before writing this email I had a typical lockup: when scrolling the terminal emulator. This has been a typical trigger for lockups. On contrast I havn't seen any such crashes (or screen corruption) on a fresh boot.Freedesktop bug reporting the same issue closed as "not our bug, blame it on the kernel".Note that 2.6.32 release candidate Changelog contain many changes for the intel DRI kernel driver. So the bug might already be fixed in the RC kernels.Same report in Kernel Bugzilla is still 'NEW' though.Related bug report in Debian, blaming it on KMS.

When I got my Google Wave account, it took the invitation about a week to arrive. A few days ago, I got my first own invites, and invited some colleagues (in an attempt to actually find a use for Google Wave beyond "rich media live messaging"). Within a few minutes they were "in". Now I just got my second set of invites. So is Google Wave now getting ready for mass opening, rocketing user numbers?As you might have already guessed, I'm not convinced by Google Wave. It's technically interesting and well-done. The demos are all nice. It's just that the UI in the browser is a bit fragile and cumbersome, and the big question so far is:

What does Google Wave allow you to do that you couldn't do before?

To me, there has been little actual use so far. Wave can do everything, but isn't optimal in any of them:

• You can use it for mail, but it only works with other users of Wave and lacks good offline operation.
• It beats pretty much any instant messaging in functionality, but the UI isn't well for running in background. Most IM clients have a great UI for "background" operation.
• Collaborative editing - I prefer having a real editor and real files for that. Check out Gobby for that. I've heard Wave is good for remote brainstorming, though.
• Social networking, read "facebook". Wave doesn't have all the filtering stuff that Facebook is still trying hard to get useful. Just wait until someone releases "Mafia Wars" for Wave ...
• Blogs. Sure, I could do a 'Blog Wave' and invite my friends there. Makes sense for small-audience private blogs; not for blogs like mine where I mostly write to people that I do not know.
• Games. This probably is the current killer app on Wave: Sudoku. Although the (widespread) implementation sucks somewhat. Magnetic Poetry is a nice idea, but doesn't even work in Chrome for me properly ...
• All the web 2.0 stuff just gets on my nerves. I'm not going to use it for my blog; I by design do not have comments on my blog, either. Being able to web 2.0 everything doesn't make up for a lack in benefits.

Yes, I'm aware that you should differentiate between the protocol and the ui. Still pretty much everything is currently designed for the web browser with full JavaScript and Flash capabilities.Of course this isn't the end yet, Google Wave will evolve. Maybe into something cool, maybe it will remain just a niche thing. Maybe some cool apps will just use Wave as protocol. But I figure, I'll mostly wait for these things to happen first before I become a frequent user of Wave.The biggest thing I see is the "spam" (this especially includes 'Quiz', Mafia Wars and similar Scamville type of 'apps' that surely will show up in no time, once Wave is open to the public). What will Wave provide to me to handle this flood of worthless information that I'm getting more and more?P.S. Please don't bother to ask for invitations to Wave.P.P.S. here's how to replace the odd scrollbars with the regular OS scrollbars with a really simple user style (CSS).

I m making a few changes to my online interactions.

• Chicken Little Remix will no longer be updated. There will be no 10.04 from me.
• I will no longer be visiting certain websites, under any circumstances, courtesy of 127.0.0.1 entries in /etc/hosts. This includes sites such as Ubuntu Forums, some blogs, and some news sites.
• I will be blocking some people from Twitter, in order to avoid their @mentions from appearing to me.
• I may (this is undecided) opt to change my anything-goes policy regarding comments on my blog. Redacted comments will have their content deleted, to make it clear that a comment is redacted, not held in moderation

Some things, however, will NOT be changing.

• I will continue my efforts in Debian. In fact, these efforts will be redoubled.
• I will continue my efforts in Ubuntu. In fact, these efforts will be redoubled.
• I will maintain my existing IRC, Twitter, email & IM presence.
• I will, when the opportunity arises, combine sweet and savoury foods.

Thank you for your time.

Over the years far too many years I have occasionally chronicled the slow death of my mother, a death of mind, personality, really person that comes with Alzheimers. She has officially had the illness for 7 years now but had symptoms prior to this time, in the form of perceptual disturbances that are the defining feature of the rare type of Alzheimers she has, Benson s syndrome. As her illness progressed and we saw her doctors they would always ask: what other illnesses or health problems does Vera have? And I would answer none. Without fail and almost immediately, the inquiring doctor would respond back none? often with a slightly raised eyebrow, the one word uttered not to challenge the veracity of my answer, but used instead to convey another meaning, often bathed in some mixture of compassion and pity. It was an acknowledgement of the future that awaited us, basically stating with no other illness, this is going to be on heck of long and difficult haul of a life experience, which has indeed been the case. However, after nearly two years of being bed bound in a nursing home, physical health problems are now creeping in and my mother is descending into different type of hell, especially since she can no longer communicate the physical pain she might be in. The words she knows are few: no and a few other words (she likes to tell people they are loco and indeed I can only imagine how true this accusation of crazy is given that we are keeping her alive against her wishes). Her consistent and persistent wailing, agitation and crying do of course communicate the depth of suffering this being the hardest thing to bear witness to. She does have periods of calm, coaxed in part by the drugs she is given but these are not enough to override the pain she and we feel. About two months ago, her body started to give, the first problem being a fracture that led to significant internal bleeding and required a blood transfusion and a brace she is still wearing. A few weeks ago when I was visiting her, she basically developed these black and red welts on the bottom of her feet in a manner of two days, so instead of boarding a plane to NYC, I took her to the emergency room and stayed a full week while she was pumped with intravenous antibiotics. At first, doctors thought it might be gangrene, which was mortifying mostly because of all the associations that come with it. The doctors determined that it was not in fact gangrene but that she has a bone infection technically called osteomyelitis a tricky condition to treat that requires at minimum 45 days of IV antibiotics. The hospital/doctors who had originally determined she would stay there for her treatment, changed their mind unexpectedly and announced their intention to ship her to a long-term care facility, which in theory we were not opposed to, except for the fact that it is very far from where my sister lives, and also it is a facility we had not verified for ourselves. On top of it, we knew she had a legal right stay in the hospital (though some doctors informed us otherwise). We preferred the hospital because it is so close to our house, we would be able to hire someone to visit her when my sister is at work, and we suspect that she will have additional complications from 45 days of IV abx so why not stick around and receive treatment and care from the same internist who had been nothing but a great doctor. The story took a turn toward the surreal when the infectious disease doctor decided to release her to her nursing home with a treatment of oral antibiotics, even though every single doctor we saw from the emergency room doctor to the weekend internist who subs for her regular doctor, repeatedly informed us the only treatment is IV antibiotics for at least 45 days, possibly more (which is the normal treatment protocol).
Since so many people don t know how to maneuver complaints and take action in hospitals, doctors and other staff can exploit this to make medically dogdy decisions (which happened in fact when a feeding tube was put into my mom, but that is another long story I don t think I ever wrote about here). I am sure also that some doctor s are less willing to take questionable action with certain patients depending on the class and background of their family members but I bet the first impression I give off to doctors, to invoke Erving Goffman s work on self-presentation, is not someone willing to take swift action. In the hospital, I have the sense that most doctors don t take me all that seriously, probably thinking that I am 5 foot slacker/artistic type that I admittedly do look like as I dress in jeans, a hoodie and a winter cap because the hospitals are so effing, ridiculously cold in PR (and I can t help my height nor the fact that I look 24 or so). So it usually comes as a surprise when I bring out my mind ninja tactics developed over years of being and thinking like an academic, whose craft is research, whose passion is arguing, and for some of us who are politically inclined, who love the challenge of righting wrongs. So when this happened I contacted lawyer-friends, talked to the social worker and promptly complained to the head of client services/ombudsperson and made a stink but of a very particular sort: it was packaged in massive tact. I was very deferential (especially since those folks have nothing to do with the mess, they are there to help and are your allies), repeatedly pointed out how the doctor s decision amounts to medical negligence, and made it clear that I was willing to take action, leave my work if need be and get my ass down there, and casually mention how in the 5 hours between their decision and my phone calls, I have already taken action (how I have contacted lawyers on the island, etc). Needless to say, the hospital decided that my mom is staying put in the hospital and I am relieved. But this solace is only of the tiniest sort. I am still reeling from the absurdity of her condition and her suffering. She is only alive because of a feeding tube that I am opposed to, her state of being a modern day zombie that in reality, or at least from my perspective perpetuates her suffering. For this reason, truth be told and at one level relieved that her body is finally failing, that there is a chance, a light at the end of this lonely, now horrific tunnel that her life will end sooner than later. This, however, makes it no easier emotionally nor ethically as it is my mother who must journey alone through significant pain and suffering as her body now goes elsewhere a journey we can watch in person yet are powerless in its face.

Over the years far too many years I have occasionally chronicled the slow death of my mother, a death of mind, personality, really person that comes with Alzheimers. She has officially had the illness for 7 years now but had symptoms prior to this time, in the form of perceptual disturbances that are the defining feature of the rare type of Alzheimers she has, Benson s syndrome. As her illness progressed and we saw her doctors they would always ask: what other illnesses or health problems does Vera have? And I would answer none. Without fail and almost immediately, the inquiring doctor would respond back none? often with a slightly raised eyebrow, the one word uttered not to challenge the veracity of my answer, but used instead to convey another meaning, often bathed in some mixture of compassion and pity. It was an acknowledgement of the future that awaited us, basically stating with no other illness, this is going to be on heck of long and difficult haul of a life experience, which has indeed been the case. However, after nearly two years of being bed bound in a nursing home, physical health problems are now creeping in and my mother is descending into different type of hell, especially since she can no longer communicate the physical pain she might be in. The words she knows are few: no and a few other words (she likes to tell people they are loco and indeed I can only imagine how true this accusation of crazy is given that we are keeping her alive against her wishes). Her consistent and persistent wailing, agitation and crying do of course communicate the depth of suffering this being the hardest thing to bear witness to. She does have periods of calm, coaxed in part by the drugs she is given but these are not enough to override the pain she and we feel. About two months ago, her body started to give, the first problem being a fracture that led to significant internal bleeding and required a blood transfusion and a brace she is still wearing. A few weeks ago when I was visiting her, she basically developed these black and red welts on the bottom of her feet in a manner of two days, so instead of boarding a plane to NYC, I took her to the emergency room and stayed a full week while she was pumped with intravenous antibiotics. At first, doctors thought it might be gangrene, which was mortifying mostly because of all the associations that come with it. The doctors determined that it was not in fact gangrene but that she has a bone infection technically called osteomyelitis a tricky condition to treat that requires at minimum 45 days of IV antibiotics. The hospital/doctors who had originally determined she would stay there for her treatment, changed their mind unexpectedly and announced their intention to ship her to a long-term care facility, which in theory we were not opposed to, except for the fact that it is very far from where my sister lives, and also it is a facility we had not verified for ourselves. On top of it, we knew she had a legal right stay in the hospital (though some doctors informed us otherwise). We preferred the hospital because it is so close to our house, we would be able to hire someone to visit her when my sister is at work, and we suspect that she will have additional complications from 45 days of IV abx so why not stick around and receive treatment and care from the same internist who had been nothing but a great doctor. The story took a turn toward the surreal when the infectious disease doctor decided to release her to her nursing home with a treatment of oral antibiotics, even though every single doctor we saw from the emergency room doctor to the weekend internist who subs for her regular doctor, repeatedly informed us the only treatment is IV antibiotics for at least 45 days, possibly more (which is the normal treatment protocol).
Since so many people don t know how to maneuver complaints and take action in hospitals, doctors and other staff can exploit this to make medically dogdy decisions (which happened in fact when a feeding tube was put into my mom, but that is another long story I don t think I ever wrote about here). I am sure also that some doctor s are less willing to take questionable action with certain patients depending on the class and background of their family members but I bet the first impression I give off to doctors, to invoke Erving Goffman s work on self-presentation, is not someone willing to take swift action. In the hospital, I have the sense that most doctors don t take me all that seriously, probably thinking that I am 5 foot slacker/artistic type that I admittedly do look like as I dress in jeans, a hoodie and a winter cap because the hospitals are so effing, ridiculously cold in PR (and I can t help my height nor the fact that I look 24 or so). So it usually comes as a surprise when I bring out my mind ninja tactics developed over years of being and thinking like an academic, whose craft is research, whose passion is arguing, and for some of us who are politically inclined, who love the challenge of righting wrongs. So when this happened I contacted lawyer-friends, talked to the social worker and promptly complained to the head of client services/ombudsperson and made a stink but of a very particular sort: it was packaged in massive tact. I was very deferential (especially since those folks have nothing to do with the mess, they are there to help and are your allies), repeatedly pointed out how the doctor s decision amounts to medical negligence, and made it clear that I was willing to take action, leave my work if need be and get my ass down there, and casually mention how in the 5 hours between their decision and my phone calls, I have already taken action (how I have contacted lawyers on the island, etc). Needless to say, the hospital decided that my mom is staying put in the hospital and I am relieved. But this solace is only of the tiniest sort. I am still reeling from the absurdity of her condition and her suffering. She is only alive because of a feeding tube that I am opposed to, her state of being a modern day zombie that in reality, or at least from my perspective perpetuates her suffering. For this reason, truth be told and at one level relieved that her body is finally failing, that there is a chance, a light at the end of this lonely, now horrific tunnel that her life will end sooner than later. This, however, makes it no easier emotionally nor ethically as it is my mother who must journey alone through significant pain and suffering as her body now goes elsewhere a journey we can watch in person yet are powerless in its face.

I ve just been disappointed to read about the DNI (Defence in the National Interest) web site closing down [1]. The final blog post says In the meantime, I ll leave everything up unless we start having more security problems , but unfortunately they have had a number of security problems in the past. I doubt the ability of a Wordpress installation to remain unscathed on the Internet if it s not upgraded regularly. So I think it s only a matter of time before a new bad Wordpress bug is discovered and DNI goes offline for good. In the past I did idly consider volunteering to help them run their site, but apart from a lack of spare time there is the issue that a number of their policy positions are things that I strongly disagree with. I can agree with paleo-cons on a number of issues, but there are also significant areas of disagreement. So it seems that the combination of a lack of skilled system administrators and a lack of good security in their software is reducing their ability to spread their message. While the site content is going to be mirrored on other sites the URLs will break and Google will give it a lower rank. In many ways losing Google ranking is a way of being silenced. I wonder whether the apparent lack of moderate-right political expression on the Internet is partly due to that demographic having less IT skills than the groups who have centrist to left-wing political views and those who have extreme-right views. Naturally anyone can pay to have someone run their web site, but having to pay raises the barrier to entry and eliminates some of the potential contributors. I think it s a bad thing for democracy if the only people who get their voices heard are those who have significant amounts of money or technical skill. One of my hopes for the SE Linux project was that it would increase the longevity of servers while also decreasing the amount of money required to run them. But of course if you have buggy PHP code then there s not much SE Linux can do to help you.

• [1] http://www.d-n-i.net/dni/2009/11/23/dni-to-close-update/

I recently had the misfortune to be compelled to install Proftpd on SCO Unix. There s nothing wrong with Proftpd of course, but everything is wrong with SCO. LDFLAGS=-L/usr/ucblib ./configure libdir=/usr/ucblib --enable-builtin-getnameinfo To get it to compile the above ./configure line is needed. It uses /usr/ucblib because having the basic BSD sockets API residing in a non-default directory makes things more exciting. The --enable-builtin-getnameinfo option is needed because the getnameinfo library call in SCO Unix doesn t work properly. On a real OS I would have downloaded the source to libc to figure out where the problem might be, but on SCO I had no option other than to disable that functionality. Then once I got it working I had to put UseIPv6 off in the configuration file, otherwise I got the error No Route to Host (from memory) when I tried to start proftpd. Finally the process was dying from an unhandled SIGALRM every 10 seconds. According to truss (a vastly inferior equivalent to strace) the sigaction() system call was being entered four times to handle SIGALRM (as was reported for every time the application code called sigaction() but the default action of terminating the application remained in place. I ended up running proftpd from inetd which removed the need for the alarm handling code. Then it all worked. SCO sucks. Last month Darl McBride was terminated from his position with the SCO group [1]. It s unfortunate that Darl wasn t terminated a lot earlier, if so then maybe SCO could have focussed on improving the quality of their products and delivering value for stock holders. Hopefully Darl will be sued by some of the people who lost money when SCO went bankrupt. It would be good if Darl could also be sued by companies that lost money due to the poor quality of SCO Unix that means every company that runs SCO servers or that writes software for it. The truly awful nature of SCO Unix is in large part due to the fact that all of SCO s money was spent on litigation that was well known to be baseless.

• [1] http://en.wikipedia.org/wiki/Darl_mcbride

It seems that despite having a very important work deadline today I am destined to be interrupted every five minutes. Unfortunately I need to concentrate to get this done. And while i managed to get "in the zone" earlier, now I cannot string two words together.

This seems to be a recurring theme recently, my productivity is horribly low because I get interrupted all the time for "can you just" jobs. I turn the phone ringer off and hide my email window and I get called on my mobile and get asked why don't you answer your phone?

Its not so much the time lost to answering the specific query or doing the job but more my context switch time to restore to my previous task becomes huge. Somehow my switching time is absolutely non linear and today it has become so large I have decided to dump state altogether.

Because I know I have to do the school run soon and the interruptions continue I have abandoned the critical task altogether for now in the hope I can get back to it fresh. Do others get this I wonder? or is it a personal fault I should strive to fix? I know I used to be able to deal with this sort of thing with much less trouble, maybe I am getting less flexible as I age?

Fortunately (umm, you know what I mean) the Entropy Key software has some cleanups required which is an easy job and does not matter if I get interrupted so I do have a productive task to complete.

Oh speaking of the entropy key Niel blogged something silly I created the other day. I had a senior moment and filked the children's nursery rhyme "If You're happy and you know it" slapping some guitar chords on it.

It seems I cannot simply leave well enough alone and last Friday night (with the help of Mark Hymers) I made it a whole lot worse. I present to you the score of "If you're happy with your ekey, blog your praise" for piano and guitar. In fact I wrote this out in rosegarden so it can be turned into a midi file etc. all the source files are available. It is released under a CC license so I suppose someone could put the lyrics back to the proper nursery rhyme and use it for something less tacky.

In a comment on my post about Designing Unsafe Cars [1] Noel said If you don t know how to make a surgery, you don t do it. If you don t know how to drive, don t drive. And if you don t know how to use a computer, don t expect anybody fix your disasters, trojans and viruses. Later he advocates using a taxi. Now I agree about surgery apart from corner cases such as medical emergencies in remote places and large-scale disasters. I also agree that it s good to avoid driving if you aren t very good at it (that would be much better than the current fad of sub-standard drivers buying large 4WD vehicles). But I don t think that people who lack computer skills should avoid using computers. When cars were first invented everyone who owned one was either a mechanic or employed one. Driving a car often involved being well out of range of anyone else who might know how to fix it, so either the car owner or their chauffeur had to be able to fix almost any problem. As the car industry evolved the level of mechanical knowledge required to own and operate a car has steadily decreased. I expect that a significant portion of drivers don t know how to top up the oil or radiator water in their car and probably don t know what is the correct pressure for air in their tires. To a large extent I don t think this is a problem, owning a car involves regularly taking it to be serviced where professionals will (or at least should) check every aspect of the car that is likely to fail. If I used my windscreen-washer less frequently I could probably avoid opening the bonnet of the car between scheduled services! When budgeting for car ownership you just have to include regularly spending a few hundred dollars to pay for an expert to find problems and fix them with of course the occasional large expense for when something big breaks. When the computer industry matures I expect that the same practice will occur. Most people will buy computers and plan to spend small amounts of money regularly to pay people to maintain it. Currently most older people seem to plan to have a young relative take care of their PC for them essentially free mechanic services. The quality of such work will vary of course, and poorly designed OSs that are vulnerable to attack may require more support than can be provided for free. Due to deficiencies in city design it is almost essential to drive a car in most parts of the US and Australia as opposed to countries such as the Netherlands where you can survive quite well without ever driving. When a service is essential it has to be usable by people who have little skill in that area. It would be good if driving wasn t necessary, I would be happy if I never drove a car again. The need to use computers however will continue to increase. So we need to make them more available to users and to support users who can t disinfect computers etc. The only skill requirements for using a computer should be the ability to use a keyboard and a mouse! This requires a new industry in supporting PCs. Geek Squad in the US [2] seems to be the organisation that is most known for this. I expect that there will be multiple companies competing for such work in every region in the near future, just as there are currently many companies competing for the business of servicing cars. We need support for free software from such companies. Maybe existing free software companies such as Red Hat and Canonical can get into this business. One advantage of having such companies supporting software is that they would have a strong commercial incentive to avoid having it break unlike proprietary software vendors who have little incentive to do things right. The next issue is the taxi analogy. Will software as a service with Google subsidising our use of their systems [3] take over any significant part of the market? Of course the car analogy breaks down when it comes to privacy, no-one does anything remotely private in a taxi while lots of secret data is stored on a typical home computer. Google is already doing some impressive security development work which will lead towards low maintenance systems [4] as well as protecting the privacy of the users to the extent that you can trust whoever runs the servers. My parents use their computer for reading email, browsing the web, and some basic wordprocessing and spreadsheet work. The mail is on my IMAP server so all I need is to have some way to store their office documents on a server and they will pretty much have a dataless workstation. Moving their collection of photos and videos of their friends and relatives to a server will be a problem, transferring multiple gigabytes of data on a cheap Australian Internet access plan is a problem.

• [1] http://etbe.coker.com.au/2009/11/24/designing-unsafe-cars/
• [2] http://www.geeksquad.com/
• [3] http://abovethecrowd.com/2009/10/29/google-redefines-disruption-the- less-than-free -business-model/
• [4] http://www.chromium.org/chromium-os/chromiumos-design-docs/security-overview

If you are using QMutex, you are probably writing threaded applications, and thus want to use helgrind (part of valgrind). helgrind has some support for threading and mutexes in Qt, but not fully. If you try to run a app using a QMutex subclass in helgrind, it fails with


<appname>: hg_intercepts.c:2124: _vgwZU_libQtCoreZdsoZa__ZN6QMutexC2ENS_13RecursionModeE: Assertion 0' failed.


Basically, it is the handler for the _ZN6QMutexC2ENS_13RecursionModeE symbol that is implemented as assert(0);. The demangled symbol is QMutex::QMutex(QMutex::RecursionMode), which looks very much like the constructor for QMutex:

$ objdump -T /usr/lib/libQtCore.so grep _ZN6QMutexC
00068840 g DF .text 0000005b Base _ZN6QMutexC2ENS_13RecursionModeE
000687e0 g DF .text 0000005b Base _ZN6QMutexC1ENS_13RecursionModeE


which both demangles into the same QMutex::QMutex(QMutex::RecursionMode) The important difference is the C1 vs C2 in the mangled symbol name. The C1 symbol is used for creating QMutex objects (complete object constructor), wheras the C2 symbol is used for creating subclasses of QMutex (base object constructor). And the C2 handler in helgrind is as said implemented as assert(0);.
So until helgrind is fixed here, please be careful to not subclass QMutex. (the destructor handler for subclasses is also implemented the same way) QMutex has no virtual base class, so even in case of subclassing, I think the helgrind handlers should be implemented the same way in the base object constructor as in the base complete object constructor. I guess I should file a bug against helgrind. A test app if anyone is curious:

#include <QtCore> class mymutex : public QMutex
public:
mymutex(QMutex::RecursionMode=QMutex::NonRecursive);
;
mymutex::mymutex(QMutex::RecursionMode mode) : QMutex(mode)
int main(int, char**)
mymutex m;
QMutexLocker lock(&m);
return 0;


Update 1: Bug filed.
Update 2: Better understanding of virtual base classes. Thanks Thiago

Update: TumbleDry has a good analysis of the Square Trade report [0]. It seems that there are significant statistical problems in Square Trade s analysis and a possible conflict of interest. Square Trade did a survey of laptop reliability and wrote an interesting article about the results [1]. One thing to keep in mind when reading them is that the usage patterns vary greatly by type of product (netbook vs laptop) and probably by brand. Their statistics indicate that netbooks are less reliable than laptops, but I think that my actions in taking my EeePC to places such as the beach are probably not uncommon a netbook is ideal when you might need access to a computer at a moment s notice. I expect that the reliability of my laptop has increased because I bought a netbook! Their statistics show that Lenovo is far from the most reliable brand, I wonder what the usage scenarios for such machines are. I ve been using Thinkpads happily for over 11 years. I have had many warranty repair jobs, I lost count long ago. But I don t think that this indicates a problem with Thinkpads, my use is very demanding, I have done a lot of traveling, and done coding in planes, trains, trams, and taxis in many countries. So instead of criticising IBM/Lenovo for having their machines break, I praise them for repeatedly repairing them no matter how they wear out in my use. The speed and quality of the repair work is very impressive. Based on this I have been strongly recommending Thinkpads to everyone I know who seems likely to wear laptops out through basically doing everything that a laptop is designed to do all day every day! Among people I know the incidence of laptop warranty repairs is probably about 100% as the number of systems that are never repaired are outweighed by the systems that are repaired multiple times. Generally Thinkpads seem fairly well built to me, I ve been surprised at how many times they didn t break when I expected them to. When articles like the one from Square Trade are discussed people usually cite personal anecdotes. My above anecdote covers just over 11 years of intensive use of four different Thinkpads. Of course it doesn t prove much about the inherent reliability of Thinkpads (I could have received through random selection either four Thinkpads that were significantly more or less reliable than average). But having dealt with the IBM/Lenovo service in a few countries I can confirm the quality of their repair work. Every time they have returned my machine rapidly, they never complained about my policy of giving them a system with the hard drive removed, and in all but one case they completely solved the problem on the first try. One time they forgot to replace a broken rubber foot and to make up for this they sent me a complete set of spare parts by courier they had repaired the other two faults without problem. Now comparing the reliability of rack-mount servers would be a lot easier. The vast majority of such systems are stored safely in racks all the time and tend not to be mishandled. My experience with servers from Dell, HP, IBM, and Sun is that apart from routine hard drive failures they all run well if you keep them cool enough. But of course as I haven t run more than a few dozen of any of those brands at one time I don t have anything near a statistically significant sample.

• [0] http://tumbledry.org/2009/11/20/when_information_overwhelms
• [1] http://www.squaretrade.com/pages/laptop-reliability-1109/

Just wanted to share comments on some movies I've watched recently.

• The hurt locker: about the days of a bomb disposal team in the war of Iraq; well done, entertaining, and it didn't trigger my oh-again-the-yanks-saving-the-day response.
• Gran Torino: cannot say much about this one, I loved each minute of it. Clint Eastwood is getting better every day; must see.
• The union: the business behind getting high: a documentary on cannabis, nice but not that interesting.
• Bienvenue chez les Ch'tis: a simple French comedy, nothing deep here. Nevertheless, I found the characters lovable, and now I'd like to visit Nord-pas-de-Calais.
• La m me: another French film, which I really enjoyed. Marion Cotillard is really impressive in her rendition of Edith Piaf.
• Death proof: ah, Tarantino, can't help enjoying, even though there was not much plot here.
• Les poupees russes: more French cinema. The sequel of "L'auberge espagnole" which wasn't that great is quite dull. The director doesn't get tired of trying to show off all these fancy edition effects, and instead of being clever, it looks silly.
• Der Untergang: disturbing, well done, enjoyed.
• Cidade de Deus: quite a surprise this one; dynamic, thrilling, great edition. Based on a real story, but goriest than Tarantino.
• Blade runner: I got a high quality copy, which was enough of an excuse to watch and enjoy it once again. A beautiful film in every sense.
• This is England: didn't know anything about This is England, and surprised me to see a film that touches on the war of the Malvinas (Falklands) from an English perspective, although that is not central to the plot. It revolves around a boy who joins a gang of skinheads, which was another surprise, as I didn't even know that the non-racist skinheads existed.
• Zack and Miri make a porno: funny, edgy, but they had to ruin everything with romance, bleargh.
• Happy together ( ): I think I liked it, but I'll need to see it again with readable subtitles!
• School of rock: I think I will never enjoy north-American comedies...

Tags: Planet Lugfi, Planet Debian

The difficulty with living on the Joey sleep schedule as the year wanes is finding enough daylight to have a satisfying day. The plan was to hike in the mountains, but my inbox said otherwise. Ugly new debhelper bugs. Looking at the hard one, I felt as if someone from 30 years ago was trying to take my day away. Why does make(1) not provide a way to discover which targets exist in a makefile? My hack to workaround that historical oversight was breaking, and make was nearly fork-bombing the system in the process. This seemed likely to eat my weekend -- I was very glad to find a quick, ugly workaround. By then it was 2:00. I'd not get to the mountain pass til after 3:00, which was pushing it. Almost stayed home, but it was such a nice sunny day, perfect weather. So I headed out. Spent half an hour along the way talking with an old woman about a well (long story), but reached the Roan with nearly two hours of daylight. And it was sublime. I realized I'd never stayed up there for sunset, so I hunkered down on a rock, finished checking my email (left over from the earlier hurry), and then spent half an hour chatting on the phone with my dad, as the sun inched down a finger at a time. When it went behind the other peak, and mist crept up the valleys below, it got cold and I hurried down. Reached the car in deep dusk, and coasted down the mountian while listening to a BBS nostalgia piece on the radio. On the way home, pulled in at the Ridgewood BBQ, and am sitting on the porch in the cold with about 50 other people, waiting for a seat (hopefully before it closes), and blogging. I accomplished everything I wanted to today, including getting something significant done, hiking, and spending quiet time on top of the world. Though only just, and feeling I was running late the whole time. Nice thing about the Joey schedule though, is I will have seven more hours of quiet time before sleep.

During the month of October I spent quite a bit of time thinking about the past, present, and future of F/OSS. This was due in part to participation in a Berkman Center event on Free Culture, where we discussed the historical arc of Free Software to Free Culture, the relationships between them (and their differences), and also the content and meaning each. Over the years, what I have found so interesting about Free Software is how it left its enclave to inspire countless groups into rethinking the politics and ethics of production and access and yet, as I raised in this pod-cast interview (due to the prompting of my interviewer, Elizabeth Stark), Free Software and/or Free Culture is still pretty bounded and contained phenomenon especially when compared to something like the existing consciousness over the environmental movement, which many folks know about and understand even when and if they are not involved in doing anything for the movement. I always ask my first year students whether they know what Free Software or Free Culture is and 9 out 10 stare at me with those blank eyes that basically speak in silence: no. Now, there are a group of activists, many located in Europe, a number of them with deep roots in the social justice movement who are taking Free Culture down a different path, trying to expand its meaning and conjoin it to social justice issues, build a broad set of coalitions across the political spectrum so as to override the fragmentation that is so characteristic to contemporary political moment, and use FC as an opportunity to critique the market fundamentalism of the last few decades. If you are interested in these issues, take a look at their charter: they are looking for comments (critical and constructive) as well as endorsements (here is the long version). I myself have a few comments, for example, I think it is worth noting something like the limits of what FC can do, that even if in many ways it can be activated to do good in the world, it is also best to highlight in the same swoop that FC is not some political panacea and has limits. For example some groups in the world, notably some indigenous communities abide by a different logic of access and culture, whereby full access is not culturally or ethically desirable, as the work of Kim Christen has illuminated. I also wonder in what ways issues of labor might be addressed more forcefully, and though they briefly raise the question of environmental sustainability, it is worth expanding these more directly and deeplyas this article by Toby Miller and Richard Maxwell make clear. There is more to say but I will leave it here for now and just say it is really great to see Free Culture taken down another political path that is rooted in coalition building.

During the month of October I spent quite a bit of time thinking about the past, present, and future of F/OSS. This was due in part to participation in a Berkman Center event on Free Culture, where we discussed the historical arc of Free Software to Free Culture, the relationships between them (and their differences), and also the content and meaning each. Over the years, what I have found so interesting about Free Software is how it left its enclave to inspire countless groups into rethinking the politics and ethics of production and access and yet, as I raised in this pod-cast interview (due to the prompting of my interviewer, Elizabeth Stark), Free Software and/or Free Culture is still pretty bounded and contained phenomenon especially when compared to something like the existing consciousness over the environmental movement, which many folks know about and understand even when and if they are not involved in doing anything for the movement. I always ask my first year students whether they know what Free Software or Free Culture is and 9 out 10 stare at me with those blank eyes that basically speak in silence: no. Now, there are a group of activists, many located in Europe, a number of them with deep roots in the social justice movement who are taking Free Culture down a different path, trying to expand its meaning and conjoin it to social justice issues, build a broad set of coalitions across the political spectrum so as to override the fragmentation that is so characteristic to contemporary political moment, and use FC as an opportunity to critique the market fundamentalism of the last few decades. If you are interested in these issues, take a look at their charter: they are looking for comments (critical and constructive) as well as endorsements (here is the long version). I myself have a few comments, for example, I think it is worth noting something like the limits of what FC can do, that even if in many ways it can be activated to do good in the world, it is also best to highlight in the same swoop that FC is not some political panacea and has limits. For example some groups in the world, notably some indigenous communities abide by a different logic of access and culture, whereby full access is not culturally or ethically desirable, as the work of Kim Christen has illuminated. I also wonder in what ways issues of labor might be addressed more forcefully, and though they briefly raise the question of environmental sustainability, it is worth expanding these more directly and deeplyas this article by Toby Miller and Richard Maxwell make clear. There is more to say but I will leave it here for now and just say it is really great to see Free Culture taken down another political path that is rooted in coalition building.

If you demand respect, you don't deserve it.