Ccache hangs while compiling and cache size is exaggerated

[Denny Lin]

Hi,

I'm using ccache 3.1.3, and it often hangs while compiling. Every time
this happens, the cache size from $ ccache -s also becomes ridiculously
large (larger than the actual cache size).

$ ccache -s
[...]
cache size    6.9 Gbytes

The filesystem says it's only 2.9 GB.

I can reproduce this, but I don't know what is causing this.

-- 
Denny Lin