DynamoRIO / DynamoRIO/dynamorio
signest test fails occasionally in debug build: <dropping nested signal>
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Component-Tests
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Description
The signest test failed in my pre-commit suite yesterday. I can sometimes
repro. It drops the nested signal:
```
> bin32/drrun -- suite/tests/bin/linux.signest
sending 2 signals
in handler 42
```
I can get this to happen with the 6.0 release debug build, sometimes:
```
> /work/dr/releases/rel-6.0.0/DynamoRIO-Linux-6.0.0-6/bin32/drrun -debug -- suite/tests/bin/linux.signest
sending 2 signals
in handler 42
```
The test works w/ "-checklevel 0" every time.
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