Ticket #2869 (closed defect: fixed)
Debian host, Debian guest: rdtsc goes backwards -> fixed in SVN/3.0.6
|Reported by:||markusl||Owned by:|
|Version:||VirtualBox 3.0.4||Keywords:||rdtsc backwards|
On Debian Lenny on a real PC, the attached program (rdtsc.cpp) works as expected. On Debian Lenny in VirtualBox 2.1.0 on Debian Lenny, the same program aborts after a few hundred thousand iterations, showing that rdtsc occasionally goes backwards. I've attached some sample output in output.txt.
If we ignore wrapping, rdtsc should only increase; it should never decrease.
- Summary changed from Debian host, Debian guest: rdtsc goes backwards to Debian host, Debian guest: rdtsc goes backwards -> fixed in SVN/3.0.6
- Version changed from VirtualBox 2.1.0 to VirtualBox 3.0.4