Muli Ben-Yehuda's journal

The documentation might suck, but it sure is colorful.

“… Such an act is illegal and is guaranteed to put a banana in your tailpipe.”

(Documentation/DMA-mapping.txt, when referring to mixing the streaming and DAC DMA mapping interfaces)

I’m writing a paper. I had a wisdom tooth surgically extracted on Sunday. I am having a hard time deciding which is more painful.

Paul Graham’s Summer Founder’s Program. How can one person have so many good ideas?

I’ve been doing some Xen work for the last few days in Watson. The end
result, except for a much better understanding of the Xen source code,
is two patches. The first is fairly trivial but fixes a problem I ran
into, the second fixes a bunch of latent buglets.

• 
  code/patches/xen/physdev-handle-errors-properly-A2 – patch to Xen to
  handle errors properly in the physical device error path.
• 
  code/patches/xen/xcs-use-var-lib-xen-A1 – patch to Xen to
  fix xcs to use /var/lib/xen for its unix domain socket.

I’m going to continue working with Xen in the upcoming weeks,
and have some interesting project ideas. All will be disclosed in due
time…

It was an incredible trip.

I wrote an emotional entry about it, but upon reading it again, it’s a tad too personal to post here. Off to my private journal it goes.

Suffice to say – Jimi, Andrea, Mischal, Orran, Hollis, Scott, and everyone else – it was great meeting and working with you you and I look forward to seeing you again.

All the cool kids here have apple laptops and/or accessories. One iPod shuffle later, so do
I. I spit in the general direction of gtkpod which wanted GTK-2.4, but gnopod Just Works(TM).

I’m spending the weekend at the hotel, working on various things. The weather outside is too cold to my liking – the skies are clear but temperatures are below 0. Here is some interesting reading:

coroutines in C – I love it, but I disagree with the author that the algorithmic structure of the program is more important than the syntactic structure. By the time I’m reading a given piece of code, I have a fairly good idea of what it (aims to) accomplish, and am mostly interested in how it accomplishes that and whether it is done correctly. Hiding the implementation obscures that.

Adam Dunkels on Embedded Sensor Networks.

List of Important Publications in Computer Science, perfect for jet-lag induced 03:30 AM mornings.

I’m writing this from the comfort of spacious room 233 at the Mt. Kisco Holiday Inn. The network works, and thus I’m happy.

The flight went well. In some sort of a cosmic pay-back for the time we had the spectacular seats right next to the restrooms, I got a seat in the exit row, where one’s legs can actually be stretched. The small pleasures in life. I was asleep before the plane took off. We landed at 5 AM. Immigration was a breeze and I had no particular difficulty finding the Hertz counter at JFK. One champagne colored Ford Taurus later, I was cruising on the highway.

I am, however, navigationaly challenged. I took the first wrong turn as soon as I left the Hertz parking lot, even sooner than I expected. That one was easy to recover from, and eventually I made it out of JFK, and onto the highway. I was following instructions (thank you, google maps!) and made it some 30 miles out of JFK when I got confused and took the wrong exit. I found myself in a neighborhood straight out of a bad movie – decrepit, graffiti covered warehouses, boarded up wooden houses and empty store fronts. Not a soul in the streets, no cars moving. I wanted to make my way out of there post-haste, but driving around just got me deeper into the maze. I kept expecting the gun-totin’ gangs to come after me. Eventually I asked a couple of policemen for instructions, and made it back to the highway somewhat shaken, but safe and sound.

The rest of the way was ok; I made it to the hotel. Since my room wasn’t ready yet I drove around looking for groceries and scouting the way to the lab. This area (Hudson valley) is beautiful; it’s rural, not too many houses or cars, and the country roads are narrow and twisting. The trees are all bare and the ground is covered with snow.

Later Jimi and his lovely wife Andrea picked me up for lunch (brunch?). A strict moratorium was imposed against talking about work, but we kept breaking it. Bad geeks! much fun was had (no other option with Jimi & co in the house). After lunch we walked around Mt Kisco, visited Borders (I exercised restraint successfully) and a fresh produce market. My silly hotel room has no kitchen accessories, so I’m sticking to fruits, fluids, and eating out.

Now that I’ve caught up on email and stuff, I shall work for a while, and then check out the fitness center. We’re expecting a blizzard tonight – that should be an interesting experience!

TBC…