X freezes on running any GL app
On a newly (re-)started X, everything is fine. After 30 minutes or so, running any GL app freezes X. Well, not really freeze. I can still move the mouse cursor or CTRL-C the app. But every action takes tens to hundreds of seconds to respond. I strace'd glxinfo and found that it kept sched_yield()ing.
My card is a on-board GeForce 6100 chip, with drvier 100.14.09