https://bugzilla.kernel.org/show_bug.cgi?id=84781 Bug ID: 84781 Summary: The guest will hang after live migration. Product: Virtualization Version: unspecified Kernel Version: 3.17.0-rc1 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: kvm Assignee: virtualization_kvm@xxxxxxxxxxxxxxxxxxxx Reporter: chao.zhou@xxxxxxxxx Regression: No Environment: ------------ Host OS (ia32/ia32e/IA64):ia32e Guest OS (ia32/ia32e/IA64):ia32e Guest OS Type (Linux/Windows):Linux kvm.git Commit:fd2752352bbc98850d83b5448a288d8991590317 qemu.git Commit:e4d50d47a9eb15f42bdd561803a29a4d7c3eb8ec Host Kernel Version:3.17.0-rc1 Hardware:Ivytown_EP, Haswell_EP Bug detailed description: -------------------------- after guest live migration, the guest will hang, and ping guest's fail. note: 1. after guest save/restore, the guest will hang 2. This should be a kernel bug kvm + qemu = result fd275235 + e4d50d47 = bad c77dcacb + e4d50d47 = good Reproduce steps: ---------------- 1.Start a TCP daemon for migration qemu-system-x86_64 -enable-kvm -m 4G -smp 4 -net nic,macaddr=00:12:31:45:41:23 -net tap,script=/etc/kvm/qemu-ifup rhel6u5.qcow -incoming tcp:localhost:4444 2. create guest qemu-system-x86_64 -enable-kvm -m 4G -smp 4 -net nic,macaddr=00:12:31:45:41:23 -net tap,script=/etc/kvm/qemu-ifup rhel6u5.qcow 3. ctrl+alt+2 to change to qemu monitor 4. migrate tcp:localhost:4444 Current result: ---------------- guest hang after live migration or save/restore. Expected result: ---------------- after live/migration or save/restore, the guest works fine. Basic root-causing log: ---------------------- -- You are receiving this mail because: You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
