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mpsc may be crashed as tail is some #60345

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qiangshou007 opened this issue Apr 28, 2019 · 2 comments
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mpsc may be crashed as tail is some #60345

qiangshou007 opened this issue Apr 28, 2019 · 2 comments
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C-bug Category: This is a bug. T-libs-api Relevant to the library API team, which will review and decide on the PR/issue.

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@qiangshou007
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qiangshou007 commented Apr 28, 2019 •
edited by csmoe
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rust/src/libstd/sync/mpsc/mpsc_queue.rs

Line 97 in 938d4ff

assert!((*tail).value.is_none());

tail may be some as hold the shadow value when concurrent
@csmoe csmoe changed the title 🐛 mpsc may be crashed as tail is not none mpsc may be crashed as tail is some Apr 28, 2019
@csmoe csmoe added the T-libs-api Relevant to the library API team, which will review and decide on the PR/issue. label Apr 28, 2019
@steveklabnik
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Triage: no change

@crlf0710 crlf0710 added the C-bug Category: This is a bug. label Jun 11, 2020
@jyn514
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jyn514 commented Feb 2, 2022

Should be fixed by #93563.

@tmiasko tmiasko closed this as completed Jan 20, 2023
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@steveklabnik @crlf0710 @jyn514 @csmoe @qiangshou007 @tmiasko