Synchronization problem

nexos · **Joined:** Tue Feb 18, 2020 3:29 pm **Posts:** 1071

I have been trying to implement terminal scrolling for a while, and got it. But now, however it page faults after scrolling. The code is here:

Code:

for(int i = 0; i < 73; i++) putchar('\n');
printf("Moved down\n");

The strange thing is, when I put the printf in another thread, it works fine. What is the problem?
Thank you for your help.

PeterX · **Joined:** Fri Nov 22, 2019 5:46 am **Posts:** 590

This probably means that your code which prints '\n' is wrong. For example it might go to far/deep on the screen. Or other miscalculation.

Can you tell us perhaps where the file with that code is. I looked into your drivers dir and couldn't find it (but that may be _my_ mistake!).

EDIT: Found it! I first looked in hal not drivers!

EDIT2: After looking at the source I can't find out if the problem is in the user space library or in the kernel. Doesn't it seem a good idea to debug here?

Greetings
Peter

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Synchronization problem

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