Comments on: Leopard GUI Crashes – Not Parallels but Canon?

By: john

john — Wed, 02 Nov 2011 15:50:40 +0000

BJ in BJUSB probably = Bubble Jet. Had the same problems….and just deleted the kext files.

By: Thierry

Thierry — Tue, 08 Jun 2010 20:54:30 +0000

I played with the authorizations and f. up the system. I reseted them with the keychain but it remains a few problems inside Library/Extensions, whose BjusBload.kext and BjusBMP.

As I have a Canon MP830 i am going to reinstall that. Thank you for the tip !

By: Jamie Flournoy

Jamie Flournoy — Sat, 23 Feb 2008 22:05:21 +0000

I have no idea how the USB drivers and kernel extensions work, and no desire to have to find out just to get work done. I use a Mac largely in order to avoid this sort of nonsense. Otherwise I’d buy a Dell and put Linux on it.

I re-enabled my disabled fonts and a few apps, and got a hang last night. So, at this point it’s hard to say what the issue is. I have some possible confounding going on, or maybe a combination of things that makes it act breaky. Currently 10 hours uptime with all non-Leopard-installed fonts disabled.

By: Adam Breindel

Adam Breindel — Sat, 23 Feb 2008 20:44:07 +0000

Forgive my ignorance of OS X system-level programming, but I’m surprised to see stability problems coming from a USB drvier… don’t they have user mode USB drivers for async devices like this? (http://blogs.msdn.com/iliast/archive/2006/10/10/Introduction-to-the-User_2D00_Mode-Driver-Framework.aspx)

Does Apple make their class driver source or libs available so that writers can just modify the class driver? (thus lowering their odds of mucking up things like interrupt handling, dma, etc.)

Hmmmm…. it’s just strange given Apple’s emphasis on constrained hardware environments in order to provide greater user experience consistency

By: Jamie Flournoy

Jamie Flournoy — Sat, 23 Feb 2008 04:55:15 +0000

Really? As far as I can tell I followed the path of least resistance given the info I had at the time. If I had done a wipe-and-reinstall that would have taken a couple of days in total to get all the crap I use installed again. I’m talking about reinstalling apps, MacPorts, etc. Forget about using the computer efficiently when it’s busy shoving little files all over the hard drive and forcing reboots every half hour. No way.

But in fact, I did “give up” more or less and reinstall to an external drive, but preserving my user profile, and copying over the Applications folder as-is using rsync (which only works on software that isn’t expecting to find a serial number buried somewhere secret). But I found that partway through reinstalling my essential apps (printer driver), the problem came back.

So a wipe and reinstall would have failed to eliminate the problem, while wasting a huge amount of time. Like I said, this was the lowest-effort approach I could think of.

It would be really, really helpful if Apple would actually document what Safe Boot vs. normal boot looks like, or even better, write a “skipping xxxx” log that shows what was NOT run.

By: jonathan

jonathan — Sat, 23 Feb 2008 04:45:00 +0000

i almost commented on your last post but decided not as i had nothing to contribute but this: “i’m amazed at your tenacity and commend you”. however, after seeing the saga drag on, i have to say, i’m amazed at your tenacity and commend you.

By: Leopard GUI crashes, Part 1 at Pervasive Code

Leopard GUI crashes, Part 1 at Pervasive Code — Sat, 23 Feb 2008 04:07:49 +0000

[...] UPDATE #2:I now believe that the Canon MX310 scanner driver was the problem. More details are here. [...]