Hi, I am running kernel 2.6.27-rc8-git6 on a supermicro x7dwa-n system, I have w83793, coretemp, and i5k_amb sensor modules loaded, occasionally the system locks up hard requiring reset button to reboot it, this usually happens after a few days of uptime and has never happened less than 24 hours after bootup, I have sensord running and noticed today that the log output changes just before it locks up, which makes me wonder if reading the sensors is the cause... The board has 8 fan connections of which 5 are currently used, the w83793 sensors show 10 fan outputs, I plan to add 2 more fans next week as the hot swap drive bay has slots for 4 but only comes with 2, I have not disabled any of the fan sensors in the config file so every minute sensord logs alarms for the unused fans: Oct 4 16:34:06 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan9: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:34:06 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan10: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:35:07 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan1: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:35:07 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan4: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:35:07 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan5: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:35:07 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan9: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:35:07 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan10: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:36:07 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan1: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:36:07 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan4: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:36:07 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan5: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:36:07 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan9: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:36:07 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan10: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:37:07 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan1: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:37:07 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan4: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:37:07 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan5: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:37:07 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan9: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:37:07 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan10: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:38:08 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan1: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:38:08 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan4: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:38:08 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan5: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:38:08 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan9: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:38:08 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan10: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:39:10 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan1: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:39:10 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan4: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:39:10 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan5: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:39:10 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan9: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:39:10 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan10: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:40:10 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan1: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:40:10 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan4: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:40:10 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan5: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:40:10 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan9: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:40:10 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan10: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:41:11 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan1: 0 RPM (min = 712 RPM) [ALARM] Oct 4 16:41:11 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan4: 0 RPM (min = 712 RPM) [ALARM] right in the middle of a batch of alarm events the log output changes, and these were the last events logged to the serial console before the system locked up: Oct 4 16:41:11 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan5: 0 Oct 4 16:41:11 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan9: 0 Oct 4 16:41:11 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan10: 0 Oct 4 16:42:11 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan1: 0 Oct 4 16:42:11 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan4: 0 Oct 4 16:42:11 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan5: 0 Oct 4 16:42:11 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan9: 0 Oct 4 16:42:11 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan10: 0 Oct 4 16:43:11 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan1: 0 Oct 4 16:43:11 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan4: 0 Oct 4 16:43:11 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan5: 0 Oct 4 16:43:11 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan9: 0 Oct 4 16:43:11 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan10: 0 Oct 4 16:44:13 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan1: 0 Oct 4 16:44:13 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan4: 0 Oct 4 16:44:13 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan5: 0 Oct 4 16:44:13 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan9: 0 Oct 4 16:44:13 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan10: 0 Oct 4 16:45:14 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan1: 0 Oct 4 16:45:14 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan4: 0 Oct 4 16:45:14 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan5: 0 Oct 4 16:45:14 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan9: 0 Oct 4 16:45:14 supermicro sensord: Sensor alarm: Chip w83793-i2c-0-2f: fan10: 0 as you can see part of the usual event is missing, the "RPM (min = 712 RPM) [ALARM]" that was visible on previous events has gone, very strange. i will try running the system with these modules unloaded but I wondered if this was a known issue that has already been fixed? Andy
