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JIT-STACKTRACEEVERY crash #35395

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aartbik opened this issue Dec 12, 2018 · 2 comments
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JIT-STACKTRACEEVERY crash #35395

aartbik opened this issue Dec 12, 2018 · 2 comments
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area-vm Use area-vm for VM related issues, including code coverage, and the AOT and JIT backends. dartfuzz Found with Dart fuzzing (DartFuzz, libFuzzer, etc.)

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@aartbik
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aartbik commented Dec 12, 2018

JIT-STACKTRACEEVERY-DebugSIMDBC64 - JIT-DEPOPTEVERY-ReleaseSIMDBC64: !DIVERGENCE! 1.2:1826901265 (output=false)

fail1:
../../runtime/vm/deopt_instructions.h: 100: error: expected: fpu_registers_ != NULL
thread=17634, isolate=fuzz.dart:main()(0x56273e8e9200)
[0x000056273ccf699c] dart::Profiler::DumpStackTrace(void*)
[0x000056273ccf699c] dart::Profiler::DumpStackTrace(void*)
-- End of DumpStackTrace
@aartbik aartbik added area-vm Use area-vm for VM related issues, including code coverage, and the AOT and JIT backends. dartfuzz Found with Dart fuzzing (DartFuzz, libFuzzer, etc.) labels Dec 12, 2018
@aartbik
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aartbik commented Dec 12, 2018 •
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Note that this is a "DebugSIMDBC64" configuration.

I ran "dart --deterministic --stacktrace_every=100 fuzz1826901265.dart" and it indeed consistently crashes.

 $ {MYDART} --deterministic --stacktrace_every=100 fuzz1826901265.dart
../../runtime/vm/deopt_instructions.h: 100: error: expected: fpu_registers_ != NULL
thread=169326, isolate=fuzz1826901265.dart:main()(0x55903dc9bb00)
  [0x000055903becd99c] dart::Profiler::DumpStackTrace(void*)
  [0x000055903becd99c] dart::Profiler::DumpStackTrace(void*)
-- End of DumpStackTrace

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aartbik commented Dec 12, 2018

fuzz1826901265.dart.txt

dart-bot pushed a commit that referenced this issue Dec 14, 2018
@rmacnak-google
[vm, dbc] Remove bad assert from DBC deoptimization.
d9c8f29 
DBC's "FPU registers" are in fact stack slots.

Bug: #35395
Change-Id: I64f90f29b55f3f9bb0fec863e1a13c651f364ee7
Reviewed-on: https://dart-review.googlesource.com/c/87271
Reviewed-by: Aart Bik <ajcbik@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
tekknolagi pushed a commit to tekknolagi/dart-assembler that referenced this issue Nov 3, 2020
@rmacnak-google
[vm, dbc] Remove bad assert from DBC deoptimization.
95c4077 
DBC's "FPU registers" are in fact stack slots.

Bug: dart-lang#35395
Change-Id: I64f90f29b55f3f9bb0fec863e1a13c651f364ee7
Reviewed-on: https://dart-review.googlesource.com/c/87271
Reviewed-by: Aart Bik <ajcbik@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
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area-vm Use area-vm for VM related issues, including code coverage, and the AOT and JIT backends. dartfuzz Found with Dart fuzzing (DartFuzz, libFuzzer, etc.)
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