michaelkuc6/blog_os
1
0
Fork 0
mirror of https://github.com/phil-opp/blog_os.git synced 2025-12-17 23:07:50 +00:00
Code Issues Projects Releases Wiki Activity

Link to Github instead of gists

Browse Source
This commit is contained in:
Philipp Oppermann
2018-07-14 14:34:21 +02:00
parent 0f07341dea
commit 934c7f3413
2 changed files with 3 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
blog/content/second-edition/posts/07-double-faults/index.md
View File

@@ -404,9 +404,9 @@ That's it! Now the CPU should switch to the double fault stack whenever a double
From now on we should never see a triple fault again!
To ensure that we don't accidentally break the above, we should add a integration test for this. We don't show the code here for space reasons, but you can find it [in this gist][stack overflow test]. The idea is to do a `serial_println!("ok");` from the double fault handler to ensure that it is called. The rest of the file is is very similar to our `main.rs`.
To ensure that we don't accidentally break the above, we should add a integration test for this. We don't show the code here for space reasons, but you can find it [on Github][stack overflow test]. The idea is to do a `serial_println!("ok");` from the double fault handler to ensure that it is called. The rest of the file is is very similar to our `main.rs`.
[stack overflow test]: https://gist.github.com/phil-opp/9600f367f10615219f3f22110a9a92eb
[stack overflow test]: https://github.com/phil-opp/blog_os/blob/master/src/bin/test-exception-double-fault-stack-overflow.rs
## Summary
In this post we learned what a double fault is and under which conditions it occurs. We added a basic double fault handler that prints an error message and added an integration test for it.