Bochs/Interrupts

[Whatever5k]

Have you noticed any problems with Bochs concerning interrupts. Because I can handle keyboard IRQs on a real machine but it doesn't work on Bochs 2.0. I think it worked on in Bochs 1.4.1, but I'm not really sure...
Any ideas?

[Whatever5k]

Hm, I noticed that my keyboard IRQ works in Bochs when I change my stack size...I had the stack size to be 256 KB, I had s.th. like this:

Code: Select all

section .bss
   resb 262144 ; = 256 KB
   stack_top:

Now, when I change it to 4KB (4096), it works...
Anybody knows why? Besides, I'm having trouble with my page fault handler...although I have set up my own ISR for interrupt 14, Bochs quits with the error message "3rd (14) exception with no resolution" when enabling paging...

[Whatever5k]

Ok, when I generate an "__asm__("int $0xe")", that is a page fault, my Page fault handler successfully handles it...but when I try to enable paging, bochs quits with the known error

[Pype.Clicker]

page fault exception come with a error code which cannot be pushed on the stack by your INT 0x0e instruction.

[Whatever5k]

Well, I didn't push anything on the stack, and my page fault handler said that there would be a page fault at address 0 (because there was nothin in cr0 and because I just did int $0xe)

[Whatever5k]

Hm, I think I wrote my page directory wrong to CR3, now I fixed that, but when enabling paging, I get the error:
"prefetch: running in bogus memory"

What does that mean? Can somebody please help me?

[beyondsociety]

Check out this previous thread.

http://www.mega-tokyo.com/forum/index.p ... eadid=2772

[Whatever5k]

So it has to do something with the stack? In how far?

[beyondsociety]

I not sure, I would have to see the part of code for the stack. Is it the same as above?

[Whatever5k]

Well, I think so...Bochs quits with saying:

prefetch: running in bogus memory

My stack is simply that here:

Code: Select all

...
...
mov esp, stack_top
...
...
section .bss
   resb 4096 ; 4KB for stack
   stack_top: