Sorry, nothing suspicous in the logs (syslog, boot, debug, dmesg, kern.log, messages).
$ lsmod | grep -i rtc genrtc 8180 1 genrtc? Indeed, /var/log/dmesg reads "Generic RTC Driver v1.07". $ modprobe rtc FATAL: Error inserting rtc (/lib/modules/2.6.10-bs2/kernel/drivers/char/rtc.ko): No such device Huh? I stopped chronyd, removed genrtc, inserted rtc and restarted chronyd (with rtcfile enabled). Youhou! No more freezes with $ lsmod | grep -i rtc rtc 10424 1 Okay, so how to make sure rtc is inserted instead of genrtc? Not really chrony's role, but its default config file is not "safe". A debconf information or question could be useful here. -- Daniel Déchelotte http://yo.dan.free.fr/