Hello again, I found some more time to investigate the duplication of temp1 in /proc/sys/dev/sensors/w83782d-i2c-0-2d. First of all: I applied the i2c-2.8.4 patch to the original kernel source and then generated the lm_sensors patch using mkpatch. dmesg displays the same module version on all modules. Furthermore, I am running the same kernel on 96 boxes and the problem appears only on about 2-4 of them. Thus, a mix of different versions could hardly explain the problem. But: sensors can read the temperatures just fine (without segfaulting), thus the libsensors interface is working. Just reading the temperatures out of /proc does not work. Thus, I rewrote the application that read temperatures out of /proc to use the libsensors library functions and that works very well. Hence, although this does not really solve the original problem, it solves my problem :-) Thanks for your help and good work! Cheers, Martin