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Crash (SEGFAULT) when building Firefox for ARMv7 or x86 Android with 1.72 #115142

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glandium opened this issue Aug 23, 2023 · 2 comments · Fixed by #115139
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Crash (SEGFAULT) when building Firefox for ARMv7 or x86 Android with 1.72 #115142

glandium opened this issue Aug 23, 2023 · 2 comments · Fixed by #115139
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C-bug Category: This is a bug.

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@glandium
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Building Firefox for the thumbv7neon-linux-androideabi and i686-linux-android fails with a rust compiler crash:

/builds/worker/fetches/rustc/lib/librustc_driver-796e47691512e4e9.so(+0x3116d63)[0x7fd329284d63]
/lib/x86_64-linux-gnu/libc.so.6(+0x3bf90)[0x7fd325e27f90]
/builds/worker/fetches/rustc/lib/libLLVM-16-rust-1.72.0-nightly.so(_ZN4llvm12DIExpression15getFragmentInfoENS0_16expr_op_iteratorES1_+0x21)[0x7fd3231624e1]
/builds/worker/fetches/rustc/lib/libLLVM-16-rust-1.72.0-nightly.so(+0x65f448b)[0x7fd3231f448b]
/builds/worker/fetches/rustc/lib/libLLVM-16-rust-1.72.0-nightly.so(+0x661387c)[0x7fd32321387c]
/builds/worker/fetches/rustc/lib/libLLVM-16-rust-1.72.0-nightly.so(_ZN4llvm16DwarfCompileUnit24constructVariableDIEImplERKNS_11DbgVariableEb+0xf19)[0x7fd322c9f459]
/builds/worker/fetches/rustc/lib/libLLVM-16-rust-1.72.0-nightly.so(_ZN4llvm16DwarfCompileUnit25createAndAddScopeChildrenEPNS_12LexicalScopeERNS_3DIEE+0x4a9)[0x7fd322a73469]
/builds/worker/fetches/rustc/lib/libLLVM-16-rust-1.72.0-nightly.so(_ZN4llvm16DwarfCompileUnit25createAndAddScopeChildrenEPNS_12LexicalScopeERNS_3DIEE+0x729)[0x7fd322a736e9]
/builds/worker/fetches/rustc/lib/libLLVM-16-rust-1.72.0-nightly.so(_ZN4llvm16DwarfCompileUnit25createAndAddScopeChildrenEPNS_12LexicalScopeERNS_3DIEE+0x729)[0x7fd322a736e9]
/builds/worker/fetches/rustc/lib/libLLVM-16-rust-1.72.0-nightly.so(_ZN4llvm16DwarfCompileUnit25createAndAddScopeChildrenEPNS_12LexicalScopeERNS_3DIEE+0x729)[0x7fd322a736e9]
/builds/worker/fetches/rustc/lib/libLLVM-16-rust-1.72.0-nightly.so(_ZN4llvm16DwarfCompileUnit25createAndAddScopeChildrenEPNS_12LexicalScopeERNS_3DIEE+0x729)[0x7fd322a736e9]
/builds/worker/fetches/rustc/lib/libLLVM-16-rust-1.72.0-nightly.so(_ZN4llvm16DwarfCompileUnit27constructSubprogramScopeDIEEPKNS_12DISubprogramEPNS_12LexicalScopeE+0xe9)[0x7fd322c9fde9]
/builds/worker/fetches/rustc/lib/libLLVM-16-rust-1.72.0-nightly.so(_ZN4llvm10DwarfDebug15endFunctionImplEPKNS_15MachineFunctionE+0x210)[0x7fd322c9c650]
/builds/worker/fetches/rustc/lib/libLLVM-16-rust-1.72.0-nightly.so(_ZN4llvm16DebugHandlerBase11endFunctionEPKNS_15MachineFunctionE+0x5e)[0x7fd322d4031e]
/builds/worker/fetches/rustc/lib/libLLVM-16-rust-1.72.0-nightly.so(_ZN4llvm10AsmPrinter16emitFunctionBodyEv+0x1a5b)[0x7fd322b8511b]
/builds/worker/fetches/rustc/lib/libLLVM-16-rust-1.72.0-nightly.so(+0x7c7f637)[0x7fd32487f637]
/builds/worker/fetches/rustc/lib/libLLVM-16-rust-1.72.0-nightly.so(+0x7c7f637)[0x7fd32487f637]
/builds/worker/fetches/rustc/lib/libLLVM-16-rust-1.72.0-nightly.so(_ZN4llvm13FPPassManager11runOnModuleERNS_6ModuleE+0xc02)[0x7fd32293a018]
/builds/worker/fetches/rustc/lib/libLLVM-16-rust-1.72.0-nightly.so(_ZN4llvm6legacy15PassManagerImpl3runERNS_6ModuleE+0x26d)[0x7fd3229a7b39]
/builds/worker/fetches/rustc/lib/librustc_driver-796e47691512e4e9.so(+0x273ce36)[0x7fd3288aae36]
/builds/worker/fetches/rustc/lib/librustc_driver-796e47691512e4e9.so(+0x273c838)[0x7fd3288aa838]
/builds/worker/fetches/rustc/lib/librustc_driver-796e47691512e4e9.so(+0x273a9d8)[0x7fd3288a89d8]
/builds/worker/fetches/rustc/lib/librustc_driver-796e47691512e4e9.so(+0x2602f27)[0x7fd328770f27]
/builds/worker/fetches/rustc/lib/librustc_driver-796e47691512e4e9.so(+0x2602467)[0x7fd328770467]
/builds/worker/fetches/rustc/lib/librustc_driver-796e47691512e4e9.so(+0x2600794)[0x7fd32876e794]
/builds/worker/fetches/rustc/lib/librustc_driver-796e47691512e4e9.so(+0x25f9ce6)[0x7fd328767ce6]
/builds/worker/fetches/rustc/lib/libstd-fe004512c8383174.so(rust_metadata_std_49ba9e76e27f693e+0x1032d5)[0x7fd3260e52d5]
/lib/x86_64-linux-gnu/libc.so.6(+0x88fd4)[0x7fd325e74fd4]
/lib/x86_64-linux-gnu/libc.so.6(__clone+0x40)[0x7fd325ef4820]

I wish I could give something more detailed, but I haven't had the time to try to yet. I however identified the regression to come from 642c92e (Enable ScalarReplacementOfAggregates in optimized builds) and building with -Zmir-enable-passes=-ScalarReplacementOfAggregates avoids the crash.
@glandium glandium added C-bug Category: This is a bug. regression-untriaged Untriaged performance or correctness regression. labels Aug 23, 2023
@rustbot rustbot added needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. I-prioritize Issue: Indicates that prioritization has been requested for this issue. labels Aug 23, 2023
@saethlin
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Duplicate of #115113

@saethlin saethlin marked this as a duplicate of #115113 Aug 23, 2023
@saethlin saethlin linked a pull request Aug 23, 2023 that will close this issue
Do not forget to pass DWARF fragment information to LLVM. #115139
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@saethlin saethlin removed I-prioritize Issue: Indicates that prioritization has been requested for this issue. regression-untriaged Untriaged performance or correctness regression. needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. labels Aug 23, 2023
@apiraino
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going to close as such.

thanks for reporting @glandium !

@apiraino apiraino closed this as not planned Won't fix, can't repro, duplicate, stale Aug 24, 2023
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Do not forget to pass DWARF fragment information to LLVM. cjgillot/rust
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@glandium @apiraino @saethlin @rustbot