> How easily can you get it to fail? Only on self compiles? I've only seen it on self compiles with -v3. I often do -v3 when I'm doing quick tests, but not on regression or benchmarks. And it's not very frequent. Last night I ran repeated self compiles for about 12 hours; a normal one takes about 10 minutes, an stracing one takes about 100 minutes. The error occured once.