Xcode hangs when trying to debug a separate process while running a test

Originator:mars.martian
Number:rdar://20972603 Date Originated:15-May-2015 11:31 AM
Status:Open Resolved:
Product:Developer Tools Product Version:Xcode 6.4b3
Classification:Serious Bug Reproducible:Always
 
Summary:
When running a test from within Xcode in one project, if you try to attach to debugger to another project, Xcode hangs.
Ran into this on Xcode 6.3 and 6.4b3.

I will attach the stack frame from running sample.

Steps to Reproduce:
1. Make a test project A with a test in it.
2. Make a test project B.
3. Run the test in project A.
4. While the test in running, open the application for project B.
5. Set a breakpoint in the test in project A so that it is paused in the debugger.
6. With project B open, try attaching to the running project B process.

Expected Results:
At this point, you would expect Xcode to attach to the project.

Actual Results:
Xcode shows a spinning wheel and becomes unusable.

Regression:
In Xcode 6.1, this ran into a separate lldb issue but that has been resolved. This used to work in Xcode 5.

Notes:
No known workaround.

Comments


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