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tombuchholz opened this issue Jan 28, 2020 · 3 comments
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Memory leakage while compiling imgui-ext on nightly #68600

tombuchholz opened this issue Jan 28, 2020 · 3 comments
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C-bug Category: This is a bug. E-needs-bisection Call for participation: This issue needs bisection: https://github.com/rust-lang/cargo-bisect-rustc E-needs-mcve Call for participation: This issue has a repro, but needs a Minimal Complete and Verifiable Example I-compilemem Issue: Problems and improvements with respect to memory usage during compilation. regression-from-stable-to-nightly Performance or correctness regression from stable to nightly. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.

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@tombuchholz
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tombuchholz commented Jan 28, 2020 •
edited by jonas-schievink
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Trying cargo build inside of https://github.com/germangb/imgui-ext using

toolchain: nightly-x86_64-unknown-linux-gnu
version: rustc 1.4.2.0-nightly
distribution: arch linux
kernel: 5.4.15-arch1-1

does eat up memory (>28GB) until OS kills it.
On stable toolchain compiling works as expected.

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rustc --version --verbose:
rustc 1.42.0-nightly (8a79d08 2020-01-27)
binary: rustc
commit-hash: 8a79d08
commit-date: 2020-01-27
host: x86_64-unknown-linux-gnu
release: 1.42.0-nightly
LLVM version: 9.0
@jonas-schievink jonas-schievink added C-bug Category: This is a bug. E-needs-bisection Call for participation: This issue needs bisection: https://github.com/rust-lang/cargo-bisect-rustc E-needs-mcve Call for participation: This issue has a repro, but needs a Minimal Complete and Verifiable Example I-compilemem Issue: Problems and improvements with respect to memory usage during compilation. regression-from-stable-to-nightly Performance or correctness regression from stable to nightly. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. I-nominated labels Jan 28, 2020
@matthiaskrgr
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I get the same compiling backtrace-sys.

@matthiaskrgr
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perf top shows high cpu utilization by cargo::util::progress::State::tick and it is actually cargo that consumes all the memory.
This is probably rust-lang/cargo#7840

@jonas-schievink
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Oh yeah this is just the Cargo thing.

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C-bug Category: This is a bug. E-needs-bisection Call for participation: This issue needs bisection: https://github.com/rust-lang/cargo-bisect-rustc E-needs-mcve Call for participation: This issue has a repro, but needs a Minimal Complete and Verifiable Example I-compilemem Issue: Problems and improvements with respect to memory usage during compilation. regression-from-stable-to-nightly Performance or correctness regression from stable to nightly. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
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