root@linaro-developer:~/vm# xl -vvv create domu_test -c
Parsing config from domu_test
libxl: debug: libxl_create.c:1342:do_domain_create: ao 0x374a0: create: how=(nil) callback=(nil) poller=0x33e40
libxl: verbose: libxl_create.c:134:libxl__domain_build_info_setdefault: qemu-xen is unavailable, use qemu-xen-traditional instead: No such file or directory
libxl: debug: libxl_device.c:251:libxl__device_disk_set_backend: Disk vdev=xvda spec.backend=unknown
libxl: debug: libxl_device.c:286:libxl__device_disk_set_backend: Disk vdev=xvda, using backend phy
libxl: debug: libxl_create.c:797:initiate_domain_create: running bootloader
libxl: debug: libxl_bootloader.c:327:libxl__bootloader_run: no bootloader configured, using user supplied kernel
libxl: debug: libxl_event.c:618:libxl__ev_xswatch_deregister: watch w=0x377c0: deregister unregistered
libxl: notice: libxl_numa.c:491:libxl__get_numa_candidate: NUMA placement failed, performance might be affected
domainbuilder: detail: xc_dom_allocate: cmdline="console=hvc0 xencons=tty root=/dev/xvda", features="(null)"
libxl: debug: libxl_dom.c:357:libxl__build_pv: pv kernel mapped 0 path /boot/zImage
domainbuilder: detail: xc_dom_kernel_file: filename="/boot/zImage"
domainbuilder: detail: xc_dom_malloc_filemap : 4730 kB
domainbuilder: detail: xc_dom_boot_xen_init: ver 4.4, caps xen-3.0-armv7l
domainbuilder: detail: xc_dom_rambase_init: RAM starts at 80000
domainbuilder: detail: xc_dom_parse_image: called
domainbuilder: detail: xc_dom_find_loader: trying multiboot-binary loader ...
domainbuilder: detail: loader probe failed
domainbuilder: detail: xc_dom_find_loader: trying Linux zImage (ARM64) loader ...
domainbuilder: detail: xc_dom_probe_zimage64_kernel: kernel is not an arm64 Image
domainbuilder: detail: loader probe failed
domainbuilder: detail: xc_dom_find_loader: trying Linux zImage (ARM32) loader ...
domainbuilder: detail: loader probe OK
domainbuilder: detail: xc_dom_parse_zimage32_kernel: called
domainbuilder: detail: xc_dom_parse_zimage32_kernel: xen-3.0-armv7l: 0x80008000 -> 0x804a6b68
libxl: debug: libxl_arm.c:433:libxl__arch_domain_configure: constructing DTB for Xen version 4.4 guest
libxl: debug: libxl_arm.c:497:libxl__arch_domain_configure: fdt total size 1274
domainbuilder: detail: xc_dom_devicetree_mem: called
domainbuilder: detail: xc_dom_mem_init: mem 512 MB, pages 0x20000 pages, 4k each
domainbuilder: detail: xc_dom_mem_init: 0x20000 pages
domainbuilder: detail: xc_dom_boot_mem_init: called
domainbuilder: detail: set_mode: guest xen-3.0-armv7l, address size 32
domainbuilder: detail: xc_dom_malloc : 1024 kB
xc: detail: Failed allocation for dom 4: 131072 extents of order 0
domainbuilder: detail: arch_setup_meminit: devicetree: 0x88000000 -> 0x880004fa
domainbuilder: detail: xc_dom_build_image: called
domainbuilder: detail: xc_dom_alloc_segment: kernel : 0x80008000 -> 0x804a7000 (pfn 0x80008 + 0x49f pages)
domainbuilder: detail: xc_dom_pfn_to_ptr_retcount: domU mapping: pfn 0x80008+0x49f at 0xb6342000
domainbuilder: detail: xc_dom_load_zimage_kernel: called
domainbuilder: detail: xc_dom_load_zimage_kernel: kernel seg 0x80008000-0x804a7000
domainbuilder: detail: xc_dom_load_zimage_kernel: copy 4844392 bytes from blob 0xb68e2000 to dst 0xb6342000
domainbuilder: detail: xc_dom_alloc_segment: devicetree : 0x88000000 -> 0x88001000 (pfn 0x88000 + 0x1 pages)
domainbuilder: detail: xc_dom_pfn_to_ptr_retcount: domU mapping: pfn 0x88000+0x1 at 0xb6f9c000
domainbuilder: detail: alloc_magic_pages: called
xc: detail: Failed allocation for dom 4: 2 extents of order 0
libxl: error: libxl_dom.c:423:libxl__build_pv: xc_dom_build_image failed: Device or resource busy
domainbuilder: detail: xc_dom_release: called
libxl: error: libxl_create.c:1022:domcreate_rebuild_done: cannot (re-)build domain: -3
libxl: debug: libxl_event.c:1591:libxl__ao_complete: ao 0x374a0: complete, rc=-3
libxl: debug: libxl_create.c:1356:do_domain_create: ao 0x374a0: inprogress: poller=0x33e40, flags=ic
libxl: debug: libxl_event.c:1563:libxl__ao__destroy: ao 0x374a0: destroy
xc: debug: hypercall buffer: total allocations:154 total releases:154
xc: debug: hypercall buffer: current allocations:0 maximum allocations:4
xc: debug: hypercall buffer: cache current size:4
xc: debug: hypercall buffer: cache hits:146 misses:4 toobig:4
the first time when I boot the guest os, it is stuck at the starting ssh server, and I destroy the guest, and try to recreate it, I got this issue. I tried to rebuild the guest system, and reboot the cubieboard, but the problem is still here.
