1644804 - grcov hangs when processing coverage data

Status: NEW

(Testing :: Code Coverage, defect)

Description

[Tyson Smith [:tsmith]]

This seems to be happening during our coverage fuzzing runs. We run grcov once an hour for the duration of the run and then once at the end before reporting the results back to the server. This is happening frequently enough to block our coverage runs.

Comment 1

[Tyson Smith [:tsmith]]

Tool versions in use are:
grcov 0.5.15
gcov (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0

gcov is not called by us directly anywhere.

Comment 2

[Marco Castelluccio [:marco]]

Could you collect the gcno/gcda files that grcov is trying to parse when it hangs?

Comment 3

[BugBot [:suhaib / :marco/ :calixte]]

The severity field is not set for this bug.
:ekyle, could you have a look please?

For more information, please visit auto_nag documentation.

Comment 4

[Calixte Denizet (:calixte)]

:tsmith, could you try a firefox build with clang to see of it makes a difference ?