I'm having exactly the same problem on a Dell Dimension C521, containing an nForce 4 motherboard and an AMD64 X² processor with (k)qemu (compiled from source) and KVM (0.16 through 0.18). The kernel log is flooded with 'rtc: lost some interrupts at 1024Hz' messages, quickly filling up the /var partition. Moreover, KVM is not really stable on this machine. However, when not using qemu or KVM, the machine is solid as a rock, and no messages about lost interruptes are reported.
I'm not sure this is related, but on boot, I also get this warning from the kernel: [ 14.506009] ..MP-BIOS bug: 8254 timer not connected to IO-APIC [ 14.686363] Using local APIC timer interrupts. [ 14.731677] result 12526120 [ 14.731679] Detected 12.526 MHz APIC timer. When looking in this machine's BIOS (this being a Dell of course), there is no option to influence the timer source (disable/enable HPET). Googling on 'rtc: lost some interrupts at 1024Hz' reveals that it's quite a common problem. -- When using kqemu, rtc: lost some interrupts at 1024Hz. https://bugs.launchpad.net/bugs/82149 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs