I have not submitted this as a bug, because I'm not yet sure what's going on. But I figured I'd post this to see if anyone has had similar experience, or has any ideas.
Earlier today, as root, I ran `vcstime'. This program causes the time of day to appear in the corner of all the text-mode consoles. Kinda handy. However, probably within an hour of starting the program, I was switching from the first text console to my X session by pressing Alt+F7, and the system hung. By "hung", I mean that pressing keys on the keyboard had no apparant effect -- pressing the NumLock key, for example, didn't cause the little light on my keyboard to light up, as it usually does. I couldn't even `ping' the system from another system on the same LAN. (The screen was white, and appeared to be in graphics mode.) So I rebooted. After the machine came up, I ran `vcstime' again; again within an hour or so, after hitting Alt+F7, the system hung. Same symptoms. So now I'm not running `vcstime' :) Now, I'm not entirely sure that vcstime is to blame, because I am alas utterly ignorant about how to debug that kind of hang. But I do of course suspect `vcstime', because I've been using the same kernel for months, and I switch from a text-mode console to X, and back, dozens of times a day, and have never had this happen before. Anyway, does this sound like enough info for me to open a bug against console-tools? Or should I do some more investigation first -- and if so, any suggestions on how to investigate? Thanks