I have the same issue with ubuntu lucid beta and hardy after recent updates. Usually system fails on using Virtualbox, qemu or anything resource heavy. Attached log from up-to-date lucid.
Linux top 2.6.32-17-generic #26-Ubuntu SMP Sat Mar 20 02:23:45 UTC 2010 x86_64 GNU/Linux AMD Athlon 5600+, ATI Radeon 3650 HD. ** Attachment added: "log file" http://launchpadlibrarian.net/43243857/log.txt -- freeze and kernel panic /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq https://bugs.launchpad.net/bugs/390388 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs