Is it normal for gcov to peg the CPU at 100%

I'm running gcov (through lcov) over a medium-sized project. It's had the CPU at close to 100% for quite a whi开发者_JS百科le (not sure exactly how long, but over 30 minutes). The memory isn't ballooning. It seems to be stuck on one task.

Is it normal for gcov to do this kind of thing?

Edit

No luck. Just had to exclude the piece of code that correlated to the hang.