assertion failure: Replay got unrecorded signal SIGSEGV (expecting SIGILL)
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- C++
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Description
The full crash session: https://gist.github.com/bjorn3/3b7dc412becb7736486b52a370d4a67f
The pack: rr_crash.zip
This issue is deterministic. The executable uses Intel Process Tracing but due to the bug I was trying to debug using rr it crashes way before PT is started. In fact it crashes before main inside a .init_array initializer.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the deterministic failure with rr_crash.zip and reviewing the linked full crash session. Focus on the crash before main, during the .init_array initializer, and before Intel Process Tracing starts. Done means replay no longer reports an unrecorded SIGSEGV when SIGILL is expected.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp, linux
- Domain
- devtools, operating-systems
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100