PointCloudLibrary / PointCloudLibrary/pcl
Poisson reconstruction in parallel threads segfaults
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Nobody has claimed this yet.
help wanted
kind: bug
kind: todo
module: surface
- Dominant language
- C++
- Stars
- 11.1k
- Forks
- 4.7k
- Avg merge
- 4d 10h
- Merged PRs (30d)
- 6
Description
Your Environment
- Operating System and version: Ubuntu 16.10
- Compiler: gcc 6.2
- PCL Version: 1.8 as packaged for Ubuntu
Expected Behavior
Two threads should be able to create two different instances of pcl::Poisson and run them on two different input clouds at the same time.
Current Behavior
Segfault
Code to Reproduce
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 running the linked pastebin reproduction with the reported Ubuntu 16.10, GCC 6.2, and PCL 1.8 environment. Inspect the pcl::Poisson implementation for state shared between instances or threads, then verify that two instances process separate input clouds concurrently without a segfault and preserve a regression test if the project’s test structure permits it.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- computer-vision
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100