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Add diagnostic explaining STATUS_STACK_BUFFER_OVERRUN not only being used for stack buffer overruns if link.exe exits with that exit code #141828

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Fulgen301
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@Fulgen301 Fulgen301 commented May 31, 2025

STATUS_STACK_BUFFER_OVERRUN is also used for fast abnormal program termination, e.g. by abort(). Emit a special diagnostic to let people know that this most likely doesn't indicate a stack buffer overrun.

This doesn't look up the crash report in the event log to determine what the fast fail error code is. This is due to the way crashes are logged: When a process crash happens, the system logs an "Application Error" event, which contains the exit code and the process ID, but not the fast fail error code. A second event by Windows Error Reporting does contain that fast fail code, but not the process ID - but that event is not emitted at process exit, but when WER has dealt with it (on my system, it happens roughly two seconds later), so querying the code would have to read the IntegratorReportId, wait two seconds or potentially longer for the WER event with the same ReportID, and read out the code. (Also, that second event doesn't happen if WER is disabled.)

Fixes #100519.

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rustbot commented May 31, 2025

r? @wesleywiser

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@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels May 31, 2025
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rustbot commented May 31, 2025

Some changes occurred in compiler/rustc_codegen_ssa

cc @WaffleLapkin

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This looks good to me but I wonder if we should include some mention of the fail fast status code (and where to find it) like:

note: consider checking the Event Log for Windows Error Reporting events to see the fail fast error code

@wesleywiser wesleywiser added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jun 4, 2025
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used for stack buffer overruns if link.exe exits with that exit code

`STATUS_STACK_BUFFER_OVERRUN` is also used for fast abnormal program
termination, e.g. by abort(). Emit a special diagnostic to let people
know that this most likely doesn't indicate a stack buffer overrun.
@Fulgen301 Fulgen301 force-pushed the status-stack-buffer-overrun-diagnostic branch from fd5dcde to 7e5acb9 Compare August 7, 2025 22:47
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Added that now - I couldn't figure out how to add two notes via derive macros though, so I replaced them with a manual Diagnostic impl.

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Thanks @Fulgen301!

@bors r+ rollup

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bors commented Aug 8, 2025

📌 Commit 7e5acb9 has been approved by wesleywiser

It is now in the queue for this repository.

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bors commented Aug 8, 2025

🌲 The tree is currently closed for pull requests below priority 100. This pull request will be tested once the tree is reopened.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Aug 8, 2025
bors added a commit that referenced this pull request Aug 9, 2025
Rollup of 23 pull requests

Successful merges:

 - #141658 (rustdoc search: prefer stable items in search results)
 - #141828 (Add diagnostic explaining STATUS_STACK_BUFFER_OVERRUN not only being used for stack buffer overruns if link.exe exits with that exit code)
 - #144823 (coverage: Extract HIR-related helper code out of the main module)
 - #144883 (Remove unneeded `drop_in_place` calls)
 - #144923 (Move several more float tests to floats/mod.rs)
 - #144988 (Add annotations to the graphviz region graph on region origins)
 - #145010 (Couple of minor abi handling cleanups)
 - #145017 (Explicitly disable vector feature on s390x baseline of bad-reg test)
 - #145027 (Optimize `char::is_alphanumeric`)
 - #145050 (add member constraints tests)
 - #145073 (update enzyme submodule to handle llvm 21)
 - #145080 (Escape diff strings in MIR dataflow graphviz)
 - #145082 (Fix some bad formatting in `-Zmacro-stats` output.)
 - #145083 (Fix cross-compilation of Cargo)
 - #145096 (Fix wasm target build with atomics feature)
 - #145097 (remove unnecessary `TypeFoldable` impls)
 - #145100 (Rank doc aliases lower than equivalently matched items)
 - #145103 (rustc_metadata: remove unused private trait impls)
 - #145115 (defer opaque type errors, generally greatly reduce tainting)
 - #145119 (rustc_public: fix missing parenthesis in pretty discriminant)
 - #145124 (Recover `for PAT = EXPR {}`)
 - #145132 (Refactor map_unit_fn lint)
 - #145134 (Reduce indirect assoc parent queries)

r? `@ghost`
`@rustbot` modify labels: rollup
bors added a commit that referenced this pull request Aug 9, 2025
Rollup of 23 pull requests

Successful merges:

 - #141658 (rustdoc search: prefer stable items in search results)
 - #141828 (Add diagnostic explaining STATUS_STACK_BUFFER_OVERRUN not only being used for stack buffer overruns if link.exe exits with that exit code)
 - #144823 (coverage: Extract HIR-related helper code out of the main module)
 - #144883 (Remove unneeded `drop_in_place` calls)
 - #144923 (Move several more float tests to floats/mod.rs)
 - #144988 (Add annotations to the graphviz region graph on region origins)
 - #145010 (Couple of minor abi handling cleanups)
 - #145017 (Explicitly disable vector feature on s390x baseline of bad-reg test)
 - #145027 (Optimize `char::is_alphanumeric`)
 - #145050 (add member constraints tests)
 - #145073 (update enzyme submodule to handle llvm 21)
 - #145080 (Escape diff strings in MIR dataflow graphviz)
 - #145082 (Fix some bad formatting in `-Zmacro-stats` output.)
 - #145083 (Fix cross-compilation of Cargo)
 - #145096 (Fix wasm target build with atomics feature)
 - #145097 (remove unnecessary `TypeFoldable` impls)
 - #145100 (Rank doc aliases lower than equivalently matched items)
 - #145103 (rustc_metadata: remove unused private trait impls)
 - #145115 (defer opaque type errors, generally greatly reduce tainting)
 - #145119 (rustc_public: fix missing parenthesis in pretty discriminant)
 - #145124 (Recover `for PAT = EXPR {}`)
 - #145132 (Refactor map_unit_fn lint)
 - #145134 (Reduce indirect assoc parent queries)

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 2053728 into rust-lang:master Aug 9, 2025
10 checks passed
@rustbot rustbot added this to the 1.91.0 milestone Aug 9, 2025
rust-timer added a commit that referenced this pull request Aug 9, 2025
Rollup merge of #141828 - Fulgen301:status-stack-buffer-overrun-diagnostic, r=wesleywiser

Add diagnostic explaining STATUS_STACK_BUFFER_OVERRUN not only being used for stack buffer overruns if link.exe exits with that exit code

`STATUS_STACK_BUFFER_OVERRUN` is also used for fast abnormal program termination, e.g. by abort(). Emit a special diagnostic to let people know that this most likely doesn't indicate a stack buffer overrun.

This doesn't look up the crash report in the event log to determine what the fast fail error code is. This is due to the way crashes are logged: When a process crash happens, the system logs an "Application Error" event, which contains the exit code and the process ID, but not the fast fail error code. A second event by Windows Error Reporting does contain that fast fail code, but not the process ID - but that event is not emitted at process exit, but when WER has dealt with it (on my system, it happens roughly two seconds later), so querying the code would have to read the `IntegratorReportId`, wait two seconds or potentially longer for the WER event with the same `ReportID`, and read out the code. (Also, that second event doesn't happen if WER is disabled.)

Fixes #100519.
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jieyouxu commented Aug 9, 2025

Hi bors this already merged
@bors r-

@rustbot rustbot added the merged-by-bors This PR was explicitly merged by bors. label Aug 9, 2025
@bors bors removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. merged-by-bors This PR was explicitly merged by bors. labels Aug 9, 2025
@bors bors added the S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. label Aug 9, 2025
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jieyouxu commented Aug 9, 2025

but what if I am bors
@rustbot label: -S-waiting-on-author +S-waiting-on-bors +merged-by-bors

@rustbot rustbot added merged-by-bors This PR was explicitly merged by bors. S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Aug 9, 2025
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STATUS_STACK_BUFFER_OVERRUN on Windows 11 when using rust-lld with dylib
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