Confused about context switch

Octocontrabass · **Joined:** Mon Mar 25, 2013 7:01 pm **Posts:** 5146

KrotovOSdev wrote:

I put stack to 0x4500 during the init process, when paging is not enabled. Should I put it to another address?

It's fine where it is now, as long as you've set up enough memory to hold it. You can always change it later.

KrotovOSdev wrote:

If kmain() function returns, my code just execute "cli; hlt".

You shouldn't receive any interrupts after that.

KrotovOSdev · **Posted:** Wed Nov 15, 2023 1:02 pm

Octocontrabass wrote:

It's fine where it is now, as long as you've set up enough memory to hold it. You can always change it later

You shouldn't receive any interrupts after that.

Ok, thanks. I do not receive interrupts after the "cli" instruction, of course.

KrotovOSdev · **Posted:** Thu Nov 23, 2023 1:24 pm

Looks like I solved this problem by using interrupt or interrupt-like stack for task switching.
Thanks for your help.

Octocontrabass · **Joined:** Mon Mar 25, 2013 7:01 pm **Posts:** 5146

Interrupts are not necessary for task switching, so I really have to wonder why it didn't work for you.

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Confused about context switch

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