f6eb089734
Occasionally the assertion that enforces increasing TSC values in `DecodedThread::NotifyTsc` would get tripped during large multi CPU trace decoding. The root cause of this issue was an assumption that all the data of a PSB will fit within the start,end TSC of the "owning" `ThreadContinuousExecution`. After investigating, this is not the case because PSBs can have multiple TSCs. This diff works around this issue by introducing a TSC upper bound for each `PSBBlockDecoder`. This fixes the assertion failure by simply "dropping" the remaining data of PSB whenever the TSC upper bound is exceeded during decoding. Future work will do a larger refactor of the multi CPU decoding to remove the dependencies on this incorrect assumption so that PSB blocks that span multiple `ThreadContinuousExecutions` are correctly handled. correctly Test Plan: Differential Revision: https://reviews.llvm.org/D136610 |
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| .. | ||
| bindings | ||
| cmake | ||
| docs | ||
| examples | ||
| include/lldb | ||
| packages/Python/lldbsuite | ||
| resources | ||
| scripts | ||
| source | ||
| test | ||
| third_party/Python/module | ||
| tools | ||
| unittests | ||
| utils | ||
| .clang-format | ||
| .clang-tidy | ||
| .gitignore | ||
| CMakeLists.txt | ||
| CODE_OWNERS.txt | ||
| LICENSE.TXT | ||
| use_lldb_suite_root.py | ||