core dump in Dart VM

[DartBot]

This issue was originally filed by @a14n

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Running the attached file I get a "Segmentation fault (core dumped)" with:

> dart --version
Dart VM version: 1.1.0-dev.5.10 (Tue Jan 14 03:42:16 2014) on "linux_x64"

The last outputs I can see are:

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start 441
  compute lat:-53 lng:-41, 256758, -53
  lat:-53 lng:-41, 256758, -53
end 441
start 442
  compute lat:-21 lng:171, 140546, -79
Segmentation fault (core dumped)

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Running this file in the editor I get "exit code=139"

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Attachment:
t.dart (1.14 KB)

[lrhn]

Added Area-VM, Triaged labels.

[iposva-google]

There seems to be something going wrong with the sin/cos merging optimization.

#­0 0x00235d96 in dart::Instruction::InsertAfter(dart::Instruction*) at /Volumes/Sources/dart-all/dart/runtime/vm/intermediate_language.cc:540
#­1 0x00194262 in dart::FlowGraph::InsertAfter(dart::Instruction*, dart::Instruction*, dart::Environment*, dart::Definition::UseKind) at /Volumes/Sources/dart-all/dart/runtime/vm/flow_graph.cc:123
#­2 0x001e016e in dart::FlowGraphOptimizer::AppendLoadIndexedForMerged(dart::Definition*, long, long) at /Volumes/Sources/dart-all/dart/runtime/vm/flow_graph_optimizer.cc:301
#­3 0x001e081e in dart::FlowGraphOptimizer::TryMergeMathUnary(dart::GrowableArray<dart::MathUnaryInstr*>) at /Volumes/Sources/dart-all/dart/runtime/vm/flow_graph_optimizer.cc:415
#­4 0x001e0cfe in dart::FlowGraphOptimizer::TryOptimizePatterns() at /Volumes/Sources/dart-all/dart/runtime/vm/flow_graph_optimizer.cc:480
#­5 0x0015e9c4 in dart::CompileParsedFunctionHelper(dart::ParsedFunction, bool, long) at /Volumes/Sources/dart-all/dart/runtime/vm/compiler.cc:349
#­6 0x0015d619 in dart::CompileFunctionHelper(dart::Function const&, bool, long) at /Volumes/Sources/dart-all/dart/runtime/vm/compiler.cc:766
#­7 0x0015dab9 in dart::Compiler::CompileOptimizedFunction(dart::Function const&, long) at /Volumes/Sources/dart-all/dart/runtime/vm/compiler.cc:821
#­8 0x00152a74 in dart::NativeArguments::isolate() const [inlined] at /Volumes/Sources/dart-all/dart/runtime/vm/code_generator.cc:1432
#­9 0x001528e9 in dart::DRT_OptimizeInvokedFunction(dart::NativeArguments) at /Volumes/Sources/dart-all/dart/runtime/vm/code_generator.cc:1425

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Set owner to @sgmitrovic.
Removed Priority-Unassigned label.
Added Priority-High, Accepted labels.

[ghost]

Added Started label.

[ghost]

Fixed in r31858.

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Added Fixed label.

[kasperl]

Should the fix be considered for merging to the 1.1 branch?

[DartBot]

This comment was originally written by @a14n

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I still see this issue happen on dev channel.

[ghost]

Yes I think this and r31862 (belong together) are small fixes that should be merged to 1.1 branch.

Alexandre, please specify/verify which VM revision number you are running. Thanks.

[DartBot]

This comment was originally written by @a14n

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I used the Dev channel :
$dart --version
Dart VM version: 1.1.0-dev.5.11 (Wed Jan 15 00:41:27 2014) on "linux_x64"

(it seems to be http://gsdview.appspot.com/dart-archive/channels/dev/raw/31818/)

To grab your fix I have downloaded a raw version on http://gsdview.appspot.com/dart-archive/channels/be/raw/latest/
$dart --version
Dart VM version: 1.2.0-edge.31909 (Fri Jan 17 00:23:59 2014) on "linux_x64"

On this version the sample code works.

[iposva-google]

Issue #16606 has been merged into this issue.

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cc @sgmitrovic.
cc @fsc8000.
cc @a-siva.

[kasperl]

The fix for this issue is now live on the stable channel in Dart SDK version 1.1.3.

[kasperl]

Issue #16606 has been merged into this issue.