Mac OS bugs?

[onlyonemac]

I've found some anomilies with the Macintosh OS, and I'm wondering if they could be bugs (I though Macs were supposed to be bug free)? I couldn't find a bug report line anywhere in my resource kit , so instead I've put it to the 68k MLA.

Firstly, I haven't got an FPU, but when I do a task which really shouldn't need one (particularly opening too many files and running out of memory), instead of an out of memory error, I get a bomb saying "floating point coprocessor not installed", which if I click the restart button, the Mac often crashes.

Secondly, when I'm copying a file from one floppy to another, and the file is bigger than about 100k, I have to do two swaps of the disks (a file smaller than that goes in one swap). But it's always two swaps, even for 700k! And the second swap normally only lasts a second or two, so obviously the Mac can hold 700k in its memory, but not 200k! Why, and is there anything I can do about it?

Finally, when I rebuild the desktop on a disk which has two files, with the same name, but different icons (like " :lc: File abc" " :quadra: File abc"), I sometimes end up with both files having the same icon that one of them originally had (like " :lc: File abc" " :lc: File abc" or " :quadra: File abc" " :quadra: File abc")?

I don't know if you guys already know about these "bugs", but I'm interested to know, and if there's anything I can do about it.

onlyonemac

 

[ClassicHasClass]

The F-line trap error is probably spurious. You just plain ran out of memory or overflowed something, and the garbage instruction it landed on was an Fxxx instruction. Even if it did have an FPU, it would still have crashed, just somewhere else.

Someone else can comment on the copy (I suspect it is a swap for each fork), but the icons probably come down to type/creator codes. Assuming there is no custom icon resource, the Mac will try to harmonize two files with the same type/creator to the same icon. This can appear non-deterministic depending on what applications are installed and their state.

 

[onlyonemac]

The disk copy is not one swap for each fork, because all the files where I've experianced it only had one fork (either a data fork or a resrouce fork, not both).

With the icons, in all cases where I've had this, both files have each had a custom icon-I've checked the bundle bits and everything. In one particular case, it was a control panel which I had copied and then modifed (oops! :O ). In other cases it's been different things. Do you think it could be because one file was derived from the other (interestingly, they both ended up with the icon of the copy, not the original)? Also, it only happens on the same disk, not across disks (as far as I remember).