Actually it seems that no IPI actually was sent. In my local PV domUs as well as on a EC2 64bit micro instance, it looks like the problem does not exist. In dmesg I see:
[ 0.000000] No local APIC present [ 0.000000] APIC: disable apic facility [ 0.000000] APIC: switched to apic NOOP And verifying with a coredump locally, all apic elements are set to the noop_apic. The only PV domU this seems to be relevant is dom0. Was this for dom0 or do I miss something? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1168350 Title: arch_trigger_all_cpu_backtrace() results in Oops on virtualized guest To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1168350/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
