Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

OOM behaviour in vec-alloc.md #133

Merged
merged 1 commit into from
Apr 20, 2019
Merged
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 2 additions & 2 deletions src/vec-alloc.md
Original file line number Diff line number Diff line change
Expand Up @@ -37,8 +37,8 @@ that, we'll need to use the rest of the heap APIs. These basically allow us to
talk directly to Rust's allocator (jemalloc by default).

We'll also need a way to handle out-of-memory (OOM) conditions. The standard
library calls `std::alloc::oom()`, which in turn calls the the `oom` langitem.
By default this just aborts the program by executing an illegal cpu instruction.
library calls `std::alloc::oom()`, which in turn calls the the `oom` langitem,
which aborts the program in a platform-specific manner.
The reason we abort and don't panic is because unwinding can cause allocations
to happen, and that seems like a bad thing to do when your allocator just came
back with "hey I don't have any more memory".
Expand Down