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Use aligned cmsghdr structs test_cmsg_nxthdr #3183

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Merged
merged 1 commit into from
Apr 3, 2023
Merged

Use aligned cmsghdr structs test_cmsg_nxthdr #3183

merged 1 commit into from
Apr 3, 2023

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ChrisDenton
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Fixes #3181.

I could find no reason for using unaligned structs in this test.

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rustbot commented Apr 2, 2023

Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @JohnTitor (or someone else) soon.

Please see the contribution instructions for more information. Namely, in order to ensure the minimum review times lag, PR authors and assigned reviewers should ensure that the review label (S-waiting-on-review and S-waiting-on-author) stays updated, invoking these commands when appropriate:

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@ChrisDenton
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I'm trying to get feedback in case there's something I've missed. I don't quite understand why it's structured the way it is.

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It looks like #1239 might have been caused by this too?

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It looks like #1239 might have been caused by this too?

Not sure, could you remove the cfg and related comments?

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Ok, that seems to have worked?

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CI on PRs doesn't run on Sparc64, we need:
@bors try

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bors commented Apr 2, 2023

⌛ Trying commit 2f15111 with merge 4a3180a...

bors added a commit that referenced this pull request Apr 2, 2023
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Auto merge of #3183 - ChrisDenton:align-stack-buffer, r=<try>
4a3180a 
Use aligned `cmsghdr` structs `test_cmsg_nxthdr`

Fixes #3181.

I could find no reason for using unaligned structs in this test.
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bors commented Apr 2, 2023

💔 Test failed - checks-actions

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Oops, I missed a #[cfg].

@bors try

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bors commented Apr 2, 2023

⌛ Trying commit 4d5f5af with merge 6192971...

bors added a commit that referenced this pull request Apr 2, 2023
@bors
Auto merge of #3183 - ChrisDenton:align-stack-buffer, r=<try>
6192971 
Use aligned `cmsghdr` structs `test_cmsg_nxthdr`

Fixes #3181.

I could find no reason for using unaligned structs in this test.
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bors commented Apr 2, 2023

💔 Test failed - checks-actions

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Hm, that still failed. I'll try bumping up the alignment...

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@bors try

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bors commented Apr 2, 2023

⌛ Trying commit 8a0ee82 with merge 62e09af...

bors added a commit that referenced this pull request Apr 2, 2023
@bors
Auto merge of #3183 - ChrisDenton:align-stack-buffer, r=<try>
62e09af 
Use aligned `cmsghdr` structs `test_cmsg_nxthdr`

Fixes #3181.

I could find no reason for using unaligned structs in this test.
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bors commented Apr 2, 2023

💔 Test failed - checks-actions

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Ok, I don't think I can fix sparc today. It's possible there may still be a problem in the test, or perhaps in CMSG_NXTHDR. But I can't immediately see it. Honestly it would probably be worth rewriting some of the CMSG_ "macros" using modern pointer methods in case that shows up anything. But that's a job for another time.

For now I've aligned the buffer and also cleaned up a few of the pointer bits in case that triggers any debug asserts in the future. Nothing major though.

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Alight, thank you for the fix!

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@bors r+ p=1

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bors commented Apr 3, 2023

📌 Commit 9102bfb has been approved by JohnTitor

It is now in the queue for this repository.

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bors commented Apr 3, 2023

⌛ Testing commit 9102bfb with merge c64bfc5...

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bors commented Apr 3, 2023

☀️ Test successful - checks-actions, checks-cirrus-freebsd-12, checks-cirrus-freebsd-13, checks-cirrus-freebsd-14
Approved by: JohnTitor
Pushing c64bfc5 to master...

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bors commented Apr 3, 2023

☀️ Test successful - checks-actions, checks-cirrus-freebsd-12, checks-cirrus-freebsd-13, checks-cirrus-freebsd-14
Approved by: JohnTitor
Pushing c64bfc5 to master...

@bors bors merged commit c64bfc5 into rust-lang:master Apr 3, 2023
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bors commented Apr 3, 2023

👀 Test was successful, but fast-forwarding failed: 422 Changes must be made through a pull request.

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test_cmsg_nxthdr fails due to alignment checks for pointer dereferences
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