This machine has been locking up randomly once or twice a day on average, but always when X is running. So I've been leaving it in console mode at night, hoping it crashes into ddb...
Last night it crashed, but unfortunately, it didn't go into ddb on its own, and the ddb.console Ctl-Alt-Esc key sequence didn't work either. Once again, the keyboard was completely dead (CapsLock key doesn't even toggle the LED). Actually that's not entirely true, I had left the LCD backlight turned off, and hitting a random key turned it back on. But that's the extent of the keyboard functionality. It looks like there was no activity when the machine crashed. I don't have cron jobs that run at night, other than fetchmail (0,30 * * * *) and it crashed sometime between 02:03:30 and 02:23:29: Nov 24 01:03:29 icicle -- MARK -- Nov 24 01:23:29 icicle -- MARK -- Nov 24 01:43:30 icicle -- MARK -- Nov 24 02:03:30 icicle -- MARK -- Nov 24 08:59:58 icicle syslogd: restart Nov 24 08:59:58 icicle /bsd: OpenBSD 4.0 (GENERIC) #1107: Sat Sep 16 19:15:58 MDT 2006 Nov 24 08:59:58 icicle /bsd: [EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/GENERIC I'm not sure what to do at this point. I'll run memtest86 tonight, but I'm very skeptical that it will reveal any hardware problems. This machine started acting strange the next day after I upgraded it to 4.0, and I can't recall a single crash during the 3.7 - 3.9 releases.