Bug detailed description: ----------------
Create one RHEL7.3 HVM and do live migration continuously, while doing the 200+ or 300+ times live-migration, tool stack report error and migration failed. Environment : ---------------- HW: Skylake server Xen: Xen 4.9.0 RC4 Dom0: Linux 4.11.0 Reproduce steps: ---------------- 1. Compile Xen 4.9 Rc4 and dom0 kernel 4.11.0, boot to dom0 2. Boot RHEL7.3 HVM guest 3. Migrate guest to localhost, sleep 10 seconds 4. Repeat doing the step3. Current result: ---------------- VM Migration fail. Base error log: ---------------- xl migrate 24hrs_lm_guest_2 localhost root@localhost's password: migration target: Ready to receive domain. Saving to migration stream new xl format (info 0x3/0x0/1761) Loading new save file <incoming migration stream> (new xl fmt info 0x3/0x0/1761) Savefile contains xl domain config in JSON format Parsing config from <saved> xc: info: Saving domain 273, type x86 HVM xc: info: Found x86 HVM domain from Xen 4.9 xc: info: Restoring domain xc: error: set HVM param 12 = 0x00000000feffe000 (85 = Interrupted system call should ): Internal error xc: error: Restore failed (85 = Interrupted system call should ): Internal error libxl: error: libxl_stream_read.c:852:libxl__xc_domain_restore_done: restoring domain: Interrupted system call should be restarted libxl: error: libxl_create.c:1217:domcreate_rebuild_done: Domain 274:cannot (re-)build domain: -3 libxl: error: libxl_domain.c:1003:libxl__destroy_domid: Domain 274:Non-existant domain libxl: error: libxl_domain.c:962:domain_destroy_callback: Domain 274:Unable to destroy guest libxl: error: libxl_domain.c:889:domain_destroy_cb: Domain 274:Destruction of domain failed migration target: Domain creation failed (code -3). libxl: error: libxl_utils.c:510:libxl_read_exactly: file/stream truncated reading ready message from migration receiver stream libxl: info: libxl_exec.c:118:libxl_report_child_exitstatus: migration transport process [19847] exited with error status 1 Migration failed, resuming at sender. HVM guest config file: -------------------------------- builder = "hvm" name = "24hrs_lm_guest" memory = 8192 vcpus = 4 vif = [ 'type=ioemu, mac=00:16:3e:12:4d:57, bridge=xenbr0' ] disk = [ '/root/images/img.24hrs_lm_guest,qcow2,hda,rw' ] device_model_override = '/usr/local/lib/xen/bin/qemu-system-i386' device_model_version = 'qemu-xen' sdl=0 vnc=1 stdvga=1 hap=1 acpi=1 gfx_passthru=0 hpet=1 serial='pty' usb=1 usbdevice=['tablet'] Best Regards, Xudong
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