So, it initially looked as if swapping the DIMMS around and reseating everything fixed my PowerBook. Paranoia is an old friend, however, so I decided to do some more testing before trusting it.

First up, TechTool Deluxe, a piece of software that Apple gives you when you buy AppleCare support. I ran the full suite of tests half a dozen times, with no errors.

Next up, World of Warcraft. I booted normally, logged in and had one of my characters stand in the middle of the busiest city, opened up the Activity Monitor, and… success! Or, more precisely, failure. It locked up good and hard, filling the screen with garbage.

Packed it up, made a support appointment at the Apple Store, walked over at the appointed time, waited 40 minutes for someone to get to me, and then spent the next 40 minutes proving that the problem really existed.

Standard diagnostic tools passed with flying colors. The tech’s random mix of apps worked just fine. We ended up testing each DIMM separately, loading up memory and CPU with World of Warcraft, QuickTime Player (random music video set to loop), and VLC (random VOB file set to loop). With the DIMM that I initially had figured was the good one, this produced several crashes within five minutes. The other DIMM worked fine, and in fact it’s been running for about half an hour now back in my office.

They’ll have a replacement DIMM for me in a few days, and meanwhile I’m going to keep stressing the machine to make really sure there’s nothing else wrong. Then I’ll migrate back from my G3 iBook.

Update: I spent a few days abusing the replacement RAM, and now everything’s back to normal. It was interesting using the G3 iBook for a while; it was perfectly adequate for use at work (Terminal, Safari, Mail, iTunes, MS Word, SSH Agent, Cisco VPNClient, Firefox, and Thunderbird), and only really showed its age when confronted with video clips (no, Choco Party is not work-related, or particularly work-safe, but it was certainly popular, especially after I googled out the name of the featured model, Miri Hanai).

I don’t plan on buying one of the current MacBook Pro models, even after they sort out all the early hardware problems (I’ve had enough early-adopter fun with Apple for a while, thanks). It will probably be a year before it’s worth the effort of migrating my primary machine to the new platform, but an x86 Mini is a possibility. We’re buying some for the office, so I’ll be able to check it out soon.

Here’s my simple RAM-thrasher. Kicking off half a dozen of these is more predictable than standing around in Ironforge in World of Warcraft:

#!/usr/bin/perl
open(In,"/dev/random");
foreach (1..250000) {
    read(In,$x,1024);
    push(@x,$x);
}
@y = sort @x;

So, it took two trips to the shop to get my brand-new Quad G5 running reliably, demonstrating once again that it’s never safe to buy The Latest Thing from Apple (or, to be fair, most vendors). It works great now, and when I took it in the second time, it received automatic priority as a “looper”, so it was done in two days. That’s the good news.

Now for the bad news: this morning, my PowerBook died with repeated kernel panics (most likely bad RAM, from the symptoms). I had backups, of course, but I didn’t need them. All I had to do was carry it over to another Mac, connect them with a FireWire cable, and reboot the second Mac from the PowerBook’s hard drive. In 30 seconds I was back in business, with everything exactly the way I like it.

I immediately made a fresh backup to a portable FireWire drive, and just for good measure, stored a disk image of that backup on the other Mac’s drive. Since I still need a laptop, I’m now booting my ancient 700MHz G3 iBook from the FireWire drive, and that’s what I’ll be carrying to work until the PowerBook is fixed. It’s a lot slower, and a bit clumsier to carry around, but I don’t have to spend any time fixing preferences, reinstalling applications, etc, etc.

Best of all, everything was done with vendor-supported tools that ship with Mac OS X, without ever opening up a case. You can rescue data from a broken Windows or Linux laptop, but the process is a touch more involved (coughcough), and the odds aren’t good that you can just boot another computer from that disk.

Update: okay, there are a few things that don’t “just work” when you pull this trick. The OS stores some of its preferences on a per-host basis, keying off the MAC address on the primary ethernet port. These are stored in ~/Library/ByHost/, and include that address in their name. Most of them are pretty obvious, like network port configurations, display preferences, and iDisk synchronization, but I was surprised that it included the input menu contents for multi-language input. The menu was there, but I had to click the checkboxes to re-enable Japanese input. So far, that’s the only host-specific preference I’ve had to set.

So, add 5 seconds to the transition time. :-)

There is one annoying side-effect to this. If you’ve turned on local mirroring of your iDisk, that mirrored copy is also host-specific. It makes sense, but it means that I have a hidden disk image chewing up 1GB.

I rather like the webcomic Misfile. The art and writing aren’t as polished as some others, but both are improving over time. The pacing is pretty good, and sometimes it just rings true:

If you’re going to make your VPN Client software completely incompatible with the Mac OS X built-in VPN support, could you at least make it capable of connecting to non-Cisco servers? It’s just not fun to be forced to delete my other VPN config and reboot every time I need to connect to one of your servers. It’s not like this stuff is some kind of standard or something…

Love, J

I always knew that American music agencies were rank amateurs at creating pop idols compared to the Japanese (c.f. Tiffany vs Hello! Project), but I hadn’t realized how much the fanbase contributes to this.

Case in point: last month, some paparazzi pictures were published of 18-year-old Kago Ai, an extremely popular idol singer, and they may have ended her career.

Now, if you’re used to Hollywood scandals and the all-too-common meltdown of former child stars, you’re probably thinking in terms of cocaine, public sex, car wrecks, shoplifting, armed robbery, drunken partying, and incredibly poor taste in boyfriends.

more...

the quiet forest
a white house stands before you
you see a mailbox.

climbing the dark stairs
you were eaten by a grue
GET THE LAMP next time.

(maybe more later…)

Please quit fucking with the concept of “plain-text” email in Mail.app. Your latest trick, stripping out leading tabs when text is cut-and-pasted using the Emacs key bindings, is a damned nuisance.

Oh, and while you have developers doing something useful, give me a switch to turn off the anti-WYSIWYG text-wrapping feature, shut off the foolish “unpack ‘safe’ files” feature in Safari, and don’t let the finder launch shell scripts that are pretending to be innocent data files.

Love, J

PS: please fix my Quad G5 correctly this time. Diagnostic LED #7 is not my friend.

Update: Well, time will tell if my Quad G5 is truly fixed, but at least they got it back to me quickly (after replacing one of the CPUs they replaced last time).

Here’s a nice demonstration of how the Republican Party started winning national elections, and why it will continue to do so for the foreseeable future:

In addition to winning hearts and minds, one must also acquire a clue.