Description of problem: When i do migration on localhost with --debug option, I can receive 'Segmentation fault (core dumped)' error, and due to this the migration operation can not finished successfully. Version-Release number of selected component (if applicable): kernel-3.17.2-200.fc20.x86_64 xen-4.3.3-3.fc20.x86_64 How reproducible: Always Steps to Reproduce: 1. Create a rhel6.6 guest, here is my vm configure file: # cat hvm.cfg name = "hvm-6.6-64-1" maxmem = 1024 memory = 1024 vcpus = 4 maxvcpus=4 builder = "hvm" kernel = "/usr/lib/xen/boot/hvmloader" boot = "c" pae = 1 acpi = 1 apic = 1 sdl = 1 vnc = 0 vncunused = 1 vnclisten = "0.0.0.0" keymap = "en-us" on_poweroff = "destroy" on_reboot = "restart" on_crash = "preserve" device_model = "/usr/lib64/xen/bin/qemu-dm" disk = ["file:/var/lib/xen/images/hvm-6.6-64-1.img,xvda,w"] vif = [ "type=ioemu,mac=00:16:36:43:73:e7,bridge=xenbr0,script=vif-bridge,model=rtl8139"] serial = "pty" usbdevice = "tablet" 2. Migrate with --debug option [root@dhcp-8-134 lkong]# xl list Name ID Mem VCPUs State Time(s) Domain-0 0 2620 8 r----- 4099.6 hvm-6.6-64-1 70 1019 4 -b---- 9.7 [root@dhcp-8-134 lkong]# rm -rf /var/log/xen/* [root@dhcp-8-134 lkong]# xl migrate --debug 70 localhost root@localhost's password: migration target: Ready to receive domain. Saving to migration stream new xl format (info 0x0/0x0/534) Loading new save file <incoming migration stream> (new xl fmt info 0x0/0x0/534) Savefile contains xl domain config WARNING: ignoring "kernel" directive for HVM guest. Use "firmware_override" instead if you really want a non-default firmware WARNING: ignoring device_model directive. WARNING: Use "device_model_override" instead if you really want a non-default device_model xc: progress: Reloading memory pages: 0/1048575 0% xc: progress: Reloading memory pages: 53248/1048575 5% xc: progress: Reloading memory pages: 105472/1048575 10% xc: progress: Reloading memory pages: 157696/1048575 15% xc: progress: Reloading memory pages: 209920/1048575 20% xc: progress: Reloading memory pages: 262144/1048575 25% xc: progress: Reloading memory pages: 315571/1048575 30% xc: progress: Reloading memory pages: 367795/1048575 35% xc: progress: Reloading memory pages: 420019/1048575 40% xc: progress: Reloading memory pages: 472243/1048575 45% xc: progress: Reloading memory pages: 524467/1048575 50% migration receiver stream contained unexpected data instead of ready message (command run was: exec ssh localhost xl migrate-receive -d ) libxl: error: libxl_utils.c:393:libxl_read_exactly: file/stream truncated reading ipc msg header from domain 71 save/restore helper stdout pipe libxl: error: libxl_exec.c:129:libxl_report_child_exitstatus: domain 71 save/restore helper [5639] died due to fatal signal Segmentation fault (core dumped) libxl: error: libxl_create.c:924:domcreate_rebuild_done: cannot (re-)build domain: -3 libxl: error: libxl_dm.c:1305:libxl__destroy_device_model: could not find device-model's pid for dom 71 libxl: error: libxl.c:1420:libxldestroy_domid: libxldestroy_device_model failed for 71 migration target: Domain creation failed (code -3). libxl: info: libxl_exec.c:118:libxl_report_child_exitstatus: migration target process [5631] exited with error status 3 Migration failed, resuming at sender. xc: error: Cannot resume uncooperative HVM guests: Internal error libxl: error: libxl.c:408:libxl__domain_resume: xc_domain_resume failed for domain 70: Interrupted system call [root@dhcp-8-134 lkong]# ls /var/log/xen/ <nothing> Actual results: Receive 'Segmentation fault (core dumped)' error, and migration operation failed. Expected results: Migration complete successfully with out 'Segmentation fault (core dumped)' error Additional info:
xen-4.4.1-9.fc21 has been submitted as an update for Fedora 21. https://admin.fedoraproject.org/updates/xen-4.4.1-9.fc21
xen-4.2.5-6.fc19 has been submitted as an update for Fedora 19. https://admin.fedoraproject.org/updates/xen-4.2.5-6.fc19
xen-4.3.3-6.fc20 has been submitted as an update for Fedora 20. https://admin.fedoraproject.org/updates/xen-4.3.3-6.fc20
Package xen-4.4.1-9.fc21: * should fix your issue, * was pushed to the Fedora 21 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing xen-4.4.1-9.fc21' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2014-15951/xen-4.4.1-9.fc21 then log in and leave karma (feedback).
xen-4.4.1-9.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report.
xen-4.3.3-6.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report.
xen-4.2.5-6.fc19 has been pushed to the Fedora 19 stable repository. If problems still persist, please make note of it in this bug report.