Rust-GPU / Rust-GPU/rust-cuda

could not compile `ntapi` (lib) due to 2 previous errors. error[E0793]: reference to packed field is unaligned

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Description

error[E0793]: reference to packed field is unaligned
--> C:\Users\liuyu.cargo\registry\src\mirrors.ustc.edu.cn-12df342d903acd47\ntapi-0.3.7\src\ntexapi.rs:2783:52
|
2783 | *tick_count.QuadPart_mut() = read_volatile(&(*USER_SHARED_DATA).u.TickCountQuad);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: packed structs are only aligned by one byte, and many modern architectures penalize unaligned field accesses
= note: creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
= help: copy the field contents to a local variable, or replace the reference with a raw pointer and use read_unaligned/write_unaligned (loads and stores via *p must be properly aligned even when using raw pointers)

error[E0793]: reference to packed field is unaligned
--> C:\Users\liuyu.cargo\registry\src\mirrors.ustc.edu.cn-12df342d903acd47\ntapi-0.3.7\src\ntexapi.rs:2807:25
|
2807 | ((read_volatile(&(*USER_SHARED_DATA).u.TickCountQuad)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: packed structs are only aligned by one byte, and many modern architectures penalize unaligned field accesses
= note: creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
= help: copy the field contents to a local variable, or replace the reference with a raw pointer and use read_unaligned/write_unaligned (loads and stores via *p must be properly aligned even when using raw pointers)

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  3. Fork the repository and make your change on a branch.
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Research direction

Start by reproducing the Windows compilation failure and inspect ntapi-0.3.7/src/ntexapi.rs at lines 2783 and 2807, where USER_SHARED_DATA.u.TickCountQuad is referenced. Determine the compatible dependency or source-level resolution, then verify that the rust-cuda build completes without E0793 errors.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
build-system
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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