Major crash, and unix garble takes over finder!

PowermacG4_450

PowermacG4_450

OS X Jaguar
this is a first.... while in the finder, using soundapp, a program, I was tinkering with this programs prefs settings...

when..


Major crash! and I could NOT get out..... (I thought crashes would NOT bring down the entire X system?)..


the interface was taken over, by a black background, with text...

it looked like dos! ahhhhh!

some of the errors, words were:

--------
"Unresolved kernal trap.

Memory access exception (1,0,0)

waiting for remote debugger......


had to press the reset/restart button.... this happened 2 times..

so, I rebooted from my 9 hard drive. (have two drives, one X one 9)

Ran disk first aid on the 10 drive...

it reported these errors on the X drive..

"problem: invalid BTree header, 0,0
problem: custom icon missing, 181726,7475

tons of icon missing, with various numbers...

mountcheck found serious errors
problem: invalid directory valence, 306361,401
volume bit map needs minor repair, 4,122
problem: volume header needs minor repair, 1,0

disk first aid reports all problems fixed.


my question.

WHAT THE HECK HAPPENED? WHY?

os 9 didnt do this.
 
This is called a Kernel panic.

It's usually caused by something really low level going haywire.

OS9 DID do it but not in the same way, it just locked solid on you. :D
 
That's the nice thing about OS X. Things rarely go completely haywire, but in those rare instances, the kernel has enough capability to halt the system gracefully. (Yes, that is graceful, compared to many other operating systems I've used.) About the only times I've gotten kernel panics were with the Public Beta (trying to do 'shutdown -h now' from the terminal) and with a version of 10.0 when I tried installing a third party network card driver. Let me tell you, uninstalling a kernel extension while booted in single user mode is quite the test of patience.
 
there was nothing graceful about this crash, and it took the whole system down... locked everything up, like os 9 would. :(

regarding extensions, ive read os X dont have extensions.... or control panels, so.. the thing you mentioned about kernel extensions is confusing somewhat.

btw, Disk first aid reported that it did fix the disk..... I ran techtool, and it reported NO errors.... so I hope its fixed.

if not... ill post again. :)

thanks.
 
To properly repair disks under OSX, you'll have to resort to a little UNIX fondling. Don't be scared; it's easy. Just do this:

* Reboot holding apple-s
* You will get some text scrolling as you boot up
* when you get to the prompt, enter the command: fsck -y
* If it says "FILESYSTEM WAS MODIFIED", then fsck it again. Keep fscking it until it says the disk is okay.
* To continue booting up, enter the command: exit
 
Originally posted by PowermacG4_450
there was nothing graceful about this crash, and it took the whole system down... locked everything up, like os 9 would. :(
Click to expand...

It's a bit more graceful in the sense that it does usually tell you what caused the problem when it panics on you, that is if you know what to look for. :)


regarding extensions, ive read os X dont have extensions.... or control panels, so.. the thing you mentioned about kernel extensions is confusing somewhat.
Click to expand...

OS X does have extensions called kernel extensions. They are the files that end with the .kext extension.

Just as extensions did for OS 9 and older, kernel extensions add capabilities to the OS for applications such as iTunes.

I don't think they can conflict with eachother anymore like they could in OS 9(which was usually the reason your system would crash)

As for the control panels, all the different sections in the system preferences are considered control panels.
 
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