Hi, Whenever I tried VirtualBox (even back in Fedora 11) it completly locked up my machine as soon as powering up a VM. I didn't care a lot, but now I am in trouble because I need it now and VMware-Player refuses to install (waits forever in the install-scripts) and VirtualBox crashes :/ I am now on Fedora-12 + updates testing, and I am using the VirtualBox packages + kernel modules provided by Fedora/yum. Any ideas what the problem could be? In syslog I found this: > vboxdrv: Warning: 2.6.31+ kernel detected. Most likely the hardware performance > vboxdrv: counter framework which can generate NMIs is active. You have to prevent > vboxdrv: the usage of hardware performance counters by > vboxdrv: echo 2 > /proc/sys/kernel/perf_counter_paranoid However at least 2.6.32.10 doesn't seem to provide perf_counter_paranoid :( Thank you in advance, Clemens -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines