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November 26, 2017
Music
live solo improv: super8
freeform jam with cory and andre


November 22, 2017
Music
freeform jam with andy


November 20, 2017
macOS High Sierra Gatekeeper malfunction and repair

I'm posting this so that google will find it in case anybody runs into this issue:

I installed macOS 10.13 fresh on a laptop, then migrated my 10.12 system (which had been updated from a 10.10 install previously) using the migration assistant to the new computer. Everything was great, except when I tried to mount downloaded .dmg files, I would get this:

"(disk image name)" is damaged and can't be opened. You should move it to the Trash.
My immediate response was: noooo what happened to our build process? Then I realized it was just this computer.

I found this article, tried using "sudo spctl --disable-master", which was a workaround, so apparently it was GateKeeper. I also tried replacing /var/db/SystemPolicy as described, with no luck.

After some hours of debugging I found that /var/db/gkopaque.bundle was invalid, and by replacing it with the contents of a working system's copy, and executing "sudo killall syspolicyd", the issue was resolved.

There you go. Also: apple -- Migration Assistant maybe should correctly copy that? Or the code that reads the gkopaque.bundle sqlite database in Security.framework should at least gracefully handle the error, rather than throwing an exception which causes assessments to all fail with an error?

Oh also I tweeted with more detail during the last part of this, but not really worth reading.

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November 20, 2017
Music
freeform jam with andy


November 16, 2017
Music
decanted youth (w/ andy+sarai): rehearsal and improvisation


November 15, 2017
super8 lengthy



3 Comments


November 15, 2017
Music
live solo improv: super8 keep going


November 11, 2017
Music
no straw to draw


November 8, 2017
super8 sore



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November 8, 2017
Music
live solo improv: super8 sore


November 7, 2017
Music
the tadzios all hail the homunculus demo


November 6, 2017
Music
the tadzios fit me on your tongue demo v2


November 3, 2017
Music
decanted youth (w/ andy+sarai): rehearsal and improvisation


November 2, 2017
super8 rehearsal [or something]



1 Comment


November 1, 2017
Music
the tadzios silly boy demo v2
live solo improv: super8 or something


October 26, 2017
Music
decanted youth (w/ andy+sarai): rehearsal and improvisation


October 25, 2017
Music
freeform jam with ezequiel


October 23, 2017
Music
record it later


October 20, 2017
super8 improv rehearsal

(these rehearsals are for a show in January, woohoo)



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October 20, 2017
Music
live solo improv: super8 again
decanted youth (w/ andy+sarai): rehearsal and improvisation


October 19, 2017
super8 improv rehearsal



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October 19, 2017
Music
live solo improv: super8 reversion
say goodbye to yourself
cant be left alone


October 16, 2017
super8 improv rehearsal



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October 16, 2017
Music
live solo improv: super8 carby


October 12, 2017
Music
oh the bios


October 9, 2017
Music
decanted youth (w/ andy+sarai): rehearsal and improvisation


October 6, 2017
Music
freeform jam with andy and tiff


October 1, 2017
Music
old man and the C rehearsal with andy and anette and andre and cory


September 29, 2017
Music
decanted youth (w/ andy+sarai): rehearsal and improvisation


September 28, 2017
super8 improv rehearsal



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September 28, 2017
Music
live solo improv: super8 second try eh


September 20, 2017
Music
freeform jam with andy and 2chris


September 17, 2017
Music
user error with chris supervision
freeform jam with cory and andre


September 13, 2017
super8 improv rehearsal



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September 13, 2017
Music
live solo improv: super8 dreams past


September 11, 2017
Music
decanted youth (w/ andy+sarai): rehearsal and improvisation


September 10, 2017
Music
old man and the C rehearsal with anette and andre and cory


September 7, 2017
super8 improv rehearsal



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September 7, 2017
Music
live solo improv: super8 success


September 5, 2017
Music
haunting something
freeform jam with andy


September 4, 2017
super8 improv rehearsal



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September 4, 2017
Music
live solo improv: super8 mobetta


September 3, 2017
super8 improv rehearsal



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September 3, 2017
Music
live solo improv: super8 software error


August 31, 2017
Music
im invisible


August 25, 2017
Music
old man and the C rehearsal with andy and andre and anette and cory


August 23, 2017
Music
kiss goodbye
broken horse


August 18, 2017
Music
decanted youth (w/ andy+sarai): rehearsal and improvisation


August 17, 2017
Music
freeform jam with ninjam and jordi and MrRT and mutant


August 15, 2017
Music
freeform jam with andy


August 10, 2017
Music
decanted youth (w/ andy+sarai): rehearsal and improvisation


August 8, 2017
Music
freeform jam with ninjam and with and xz and alfred and flip and bob and retard and divil and viostrat


August 7, 2017
Music
this is windows update


August 6, 2017
Music
old man and the C rehearsal with cory and andre and anette


August 4, 2017
Music
another day another template


August 2, 2017
Music
freeform jam with andy


July 30, 2017
Music
old man and the C rehearsal with cory and anette


July 21, 2017
Music
you think im crazy
river of sorrow
no news


July 20, 2017
super8 improv rehearsal (flashing lights warning, oops)



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July 18, 2017
Music
live solo improv: super8 practice
no business


July 17, 2017
Music
kickykickkick


July 15, 2017
Music
old man and the C rehearsal with cory and andre and anette


July 13, 2017
the lowest end

To follow up on my last article about Linux on the ASUS T100TA, I recently acquired (for about $150) an ASUS C201 Chromebook, with a quad-core (1.8ghz?) ARM processor, 4GB RAM, and a tiny 16GB SSD. This is the first time I've used a Chromebook, and ChromeOS feels not-so-bad. I wish we could target it directly!

...but we can't! At least, not without going through Javascript/WebAssembly/whatever. Having said that, one can put it in developer mode (which isn't difficult but also is sort of a pain in the ass, especially when it prompts you whenever it boots to switch out of developer mode, which if you do will wipe out all of your data, ugh). In developer mode, you can use Crouton to install Linux distributions in a chroot environment (ChromeOS uses a version of the Linux kernel, but then has its own special userland environment that is no fun).

I installed Ubuntu 16.04 (xenial) on my C201, and it is working fine for the most part! It's really too bad there's no easy way to install Ubuntu completely native, rather than having to run it alongside ChromeOS. ChromeOS has great support for the hardware (including sleeping), whereas when you're in the Ubuntu view, it doesn't seem you can sleep. So you have to remember to switch back to ChromeOS before closing the lid.

So I built REAPER on this thing, fun! And I still have a few GB of disk left, amazingly. Found a few bugs in EEL2/ARM when building with gcc5, fixed those (I'm now aware of __attribute__((naked)), and __clear_cache()).

Some interesting performance comparisons, compiling REAPER:

  • C201 (gcc 5.4): 9m 7s
  • T100TA (gcc 6.3): 8m 45s
  • Raspberry Pi 3 w/ slow MicroSD (gcc 4.7): 28m
REAPER v5.50rc6 (48khz, 256 spls, stock settings), "BradSucks_MakingMeNervous.rpp" from old REAPER installers -- OGG Vorbis audio at low samplerates, a few FX here and there, not a whole lot else:
  • C201: 28% CPU, 13% RT CPU, 15% FX CPU, longest block: 1.5ms
  • T100TA: 22% CPU, 9% RT CPU, 10% FX CPU, longest block 0.9ms
(The T100TA's ALSA drivers are rough, can't do samplerates other than 48khz, can't do full duplex...)

Overall both of these cheapo laptops are really quite nice, reasonably usable for things, nice screens, outstanding battery life. If only the C201 could run Linux directly without the ugly ChromeOS developer-mode kludge (and if it had a 64GB SSD instead of 16GB...). Also, I do miss the T100TA's charge-from-microUSB (the C201 has a small 12V power supply, but charging via USB is better even if it is slow).

I'll probably use the T100TA more than the C201 -- not because it's slightly faster, but because I feel like I own it, whereas on the C201 I feel like I'm a guest of Google's (as a side note, apparently you can install a fully native Debian, but I haven't gotten there yet.. The fact that you have to use the kernel blob from ChromeOS makes me hesitate more, but one of these days I might give it a shot).

4 Comments


July 12, 2017
Music
decanted youth (w/ andy+sarai): rehearsal and improvisation


July 9, 2017
Music
old man and the C rehearsal with cory and andre and anette and andy


July 5, 2017
Music
decanted youth (w/ andy+sarai): rehearsal and improvisation


July 3, 2017
oil (wip)



1 Comment


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