Recording FF crashtest-ipc: "Should be entering mmap2, but instead at clone"
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Description
Assertion `t->regs().orig_eax == syscallno' failed to hold. Should be entering mmap2, but instead at clone
I've seen this happen twice now with gecko-dev sha1 876943a61001e8ccf48ce6cfb9cd0724100b0bb8. This is at the very end of the recording session, so it's not going to cause significant issues in practice, so not blocking 1.3 on it.
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 crashtest-ipc recording failure with gecko-dev at sha1 876943a61001e8ccf48ce6cfb9cd0724100b0bb8. Investigate the assertion that expects mmap2 but observes clone near the end of recording, then verify that the recording completes without the assertion.
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