VM crash: runtime/vm/profiler.cc: 141: error: expected: sample_buffer_ != nullptr

[alexmarkov]

From dart-fuzz bot:

Isolate (/b/s/w/itvz6b0bsx/dart_fuzzHIKQPK) NO-FP NO-FFI FLAT : JIT-DebugSIMRISCV64 - JIT-DebugSIMARM64C: !DIVERGENCE! 1.101:1264572494 (-6 vs 0)

fail1:
-6
{VF5Knej: JtP, 1PaTG: Tx}

... skipped ...

var97: Expando:
print() throws

../../runtime/vm/profiler.cc: 141: error: expected: sample_buffer_ != nullptr

===== CRASH =====
si_signo=Segmentation fault(11), si_code=SEGV_MAPERR(1), si_addr=0xababb2eb
Aborting reentrant request for stack trace.



-- BEGIN REPRODUCE  --

DART SDK REVISION: 

dart runtime/tools/dartfuzz/dartfuzz.dart --no-fp --no-ffi --flat --seed 1264572494 fuzz.dart

-- RUN 1 --

out/DebugSIMRISCV64/dart --profiler --profile_period=641 --runtime_allocate_spill_tlab --force_evacuation --old_gen_heap_size=128 /b/s/w/itvz6b0bsx/dart_fuzzHIKQPK/fuzz.dart

-- RUN 2 --

out/DebugSIMARM64C/dart --profiler --profile_vm=false --sample_buffer_duration=45 --no_concurrent_sweep --no_unopt_megamorphic_calls --optimization_counter_threshold=20690 --old_gen_heap_size=128 /b/s/w/itvz6b0bsx/dart_fuzzHIKQPK/fuzz.dart

-- END REPRODUCE  --

https://logs.chromium.org/logs/dart/buildbucket/cr-buildbucket/8713657647748859297/+/u/collect_shards/dartfuzz_-_generated_programs_shard_21/task_stdout_stderr:_dartfuzz_-_generated_programs_shard_21

/cc @bkonyi @rmacnak-google

[aam]

happened again https://logs.chromium.org/logs/dart/buildbucket/cr-buildbucket/8713204709979493633/+/u/collect_shards/dartfuzz_-_generated_programs_shard_16/task_stdout_stderr:_dartfuzz_-_generated_programs_shard_16

[alexmarkov]

Still failing:

../../runtime/vm/profiler.cc: 141: error: expected: sample_buffer_ != nullptr

===== CRASH =====
si_signo=Segmentation fault(11), si_code=SEGV_MAPERR(1), si_addr=0xababb303
Aborting reentrant request for stack trace.



-- BEGIN REPRODUCE  --

DART SDK REVISION: 

dart runtime/tools/dartfuzz/dartfuzz.dart --no-fp --no-ffi --flat --seed 1522580635 fuzz.dart

-- RUN 1 --

out/DebugSIMARM64/dart --profiler --force_clone_compiler_objects --old_gen_heap_size=128 /b/s/w/iti8wgtdzg/dart_fuzzAZWEXV/fuzz.dart

-- RUN 2 --

out/DebugX64/dart --profiler --max_profile_depth=49 --dontneed_on_sweep --old_gen_heap_size=128 /b/s/w/iti8wgtdzg/dart_fuzzAZWEXV/fuzz.dart

-- END REPRODUCE  --

https://logs.chromium.org/logs/dart/buildbucket/cr-buildbucket/8713113813214013105/+/u/collect_shards/dartfuzz_-_generated_programs_shard_32/task_stdout_stderr:_dartfuzz_-_generated_programs_shard_32