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Re: [Xen-devel] Unable to create Stubdomains with NIC(s) - Xen 4.5.2



On Mon, Nov 16, 2015 at 12:11:14PM +0000, Ian Campbell wrote:
> On Mon, 2015-11-16 at 11:45 +0100, Peter Schmid wrote:
> > Dear all
> > I have been trying to setup stubdomains for added security on a test
> > machine so I could then suggest to use xen at work with some added
> > "backbone" and practical experience.
> > 
> > Unfortunately I am unable to launch domains with a stubdomain when
> > there's a NIC configured in the VM config file.
> > The Domain launches without problems when I comment the vif= entry.
> >  
> > The Error I am getting is the following:
> > libxl: error: libxl_dm.c:1284:stubdom_pvqemu_cb: error connecting nics
> > devices: No such file or directory
> > I have tried different types as well (ioemu, etc.).
> >  
> > More logs/configs can be found further below.
> >  
> > Thank you very much in advance,
> >  Peter
> > 
> > 
> > #########
> > $ xl create win7_install_test.cfg                                        
> >         
> > Parsing config from win7_install_test.cfg
> > libxl: error: libxl_dm.c:1284:stubdom_pvqemu_cb: error connecting nics
> > devices: No such file or directory
> > libxl: error: libxl_device.c:797:libxl__initiate_device_remove: unable to 
> > get my domid
> 
> These often suggests that your xencommons initscript is not up to date and
> isn't populating some of the required nodes for dom0. I'm not sure if this
> would have the knock on effect of the breakage you describe, but it is
> worth fixing in any case.
> 
> Given "No such file or directory" I'd also be inclined to check that
> /etc/xen/scripts exists and has stuff in it, especially vif-* and that they
> are executable, there #! refers to a shell which exists etc.
> 
> Weirdly our automated test test doesn't seem to include the stubdom jobs
> for 4.5 (they appear to being at 4.6), but I can't see at all where such a
> test is deliberately suppressed by the test code. Perhaps Wei (CC'd) knows.
> 

4.5 has a bug that completely stops stubdom from working. Paul provided
a workaround which was backported to 4.5.1.  I considered 4.5 branch
stubdom broken so I skipped that branch.

> FWIW the flights testing stbudom in xen-unstable use a cfg file which looks
> like:
>  http://logs.test-lab.xenproject.org/osstest/logs/64035/test-amd64-amd64-xl-qemut-stubdom-debianhvm-amd64-xsm/merlot1---etc-xen-debianhvm.guest.osstest.cfg
> 
> It doesn't look to me to be materially very different to what you have.
> 
> Ian.
> 
> > libxl: error: libxl_device.c:797:libxl__initiate_device_remove: unable to
> > get my domid

Can you try a config with vif then

  xl create -p guest.cfg

And then use xl list to see if stubdom is alive?

You should see something similar to:

Name                                        ID   Mem VCPUs      State   Time(s)
Domain-0                                     0  2863     4     r-----    7041.7
wheezy-hvm                                 699   511     1     --p---       0.0
wheezy-hvm-dm                              700    32     1     r-----      19.9

Wei.

> > libxl: error: libxl_device.c:797:libxl__initiate_device_remove: unable to
> > get my domid
> > libxl: error: libxl_device.c:797:libxl__initiate_device_remove: unable to
> > get my domid
> > libxl: error: libxl.c:1652:devices_destroy_cb: libxl__devices_destroy
> > failed for 2
> > libxl: info: libxl.c:1698:devices_destroy_cb: forked pid 582 for destroy
> > of domain 2
> > libxl: error: libxl_create.c:1362:domcreate_attach_vtpms: unable to add
> > nic devices
> > libxl: error: libxl.c:1578:libxl__destroy_domid: non-existant domain 2
> > libxl: error: libxl.c:1510:stubdom_destroy_callback: unable to destroy
> > stubdom with domid 2
> > libxl: error: libxl_device.c:797:libxl__initiate_device_remove: unable to
> > get my domid
> > libxl: error: libxl_device.c:797:libxl__initiate_device_remove: unable to
> > get my domid
> > libxl: error: libxl_device.c:797:libxl__initiate_device_remove: unable to
> > get my domid
> > libxl: error: libxl.c:1652:devices_destroy_cb: libxl__devices_destroy
> > failed for 1
> > libxl: info: libxl.c:1698:devices_destroy_cb: forked pid 596 for destroy
> > of domain 1
> > libxl: error: libxl_create.c:1482:domcreate_destruction_cb: unable to
> > destroy domain 1 following failed creation
> > #########
> > Here is my config file:
> > #########
> > builder='hvm'
> > memory = 8192
> > name = "win7_test"
> > ## vif = [ 'mac=00:fe:fe:ca:be:dd,bridge=xenbr0,model=e1000' ]
> > vif = [ 'type=ioemu, bridge=xenbr0' ]
> > uuid = "ffacbdff-abcd-abcd-cafe-deadbeefbabe"
> > acpi = 1
> > apic = 1
> > disk = [ 'file:/home/user/win7_test_2015_11_02.img,hda,w', ]
> > #----------------------------------------------------------------------
> > -------
> > # boot on floppy (a), hard disk (c) or CD-ROM (d)
> > # default: hard disk, cd-rom, floppy
> > boot="c"
> > # stubdomain:
> > device_model_stubdomain_override = 1
> > xen_platform_pci=0
> > sdl=0
> > vnc=1
> > vncdisplay=0
> > vncconsole=0
> > vnclisten='0.0.0.0'
> > vfb = [ 'type=vnc,vnclisten=0.0.0.0,vncunused=1' ]
> > serial='pty'
> > usbdevice='tablet'
> > #########
> > running xl create with more verbose output:
> > #########
> > Parsing config from win7_test_install_test_filedisk.cfg
> > libxl: debug: libxl_create.c:1504:do_domain_create: ao 0xa190e0: create:
> > how=(nil) callback=(nil) poller=0xa189c0
> > libxl: debug: libxl_device.c:269:libxl__device_disk_set_backend: Disk
> > vdev=hda spec.backend=unknown
> > libxl: debug: libxl_device.c:215:disk_try_backend: Disk vdev=hda, backend
> > phy unsuitable as phys path not a block device
> > libxl: debug: libxl_device.c:298:libxl__device_disk_set_backend: Disk
> > vdev=hda, using backend qdisk
> > libxl: debug: libxl_create.c:907:initiate_domain_create: running
> > bootloader
> > libxl: debug: libxl_bootloader.c:323:libxl__bootloader_run: not a PV
> > domain, skipping bootloader
> > libxl: debug: libxl_event.c:633:libxl__ev_xswatch_deregister: watch
> > w=0xa198b0: deregister unregistered
> > xc: detail: elf_parse_binary: phdr: paddr=0x100000 memsz=0xbf084
> > xc: detail: elf_parse_binary: memory: 0x100000 -> 0x1bf084
> > xc: detail: VIRTUAL MEMORY ARRANGEMENT:
> > xc: detail:   Loader:   0000000000100000->00000000001bf084
> > xc: detail:   Modules:  0000000000000000->0000000000000000
> > xc: detail:   TOTAL:    0000000000000000->00000001ffc00000
> > xc: detail:   ENTRY:    0000000000100000
> > xc: detail: PHYSICAL MEMORY ALLOCATION:
> > xc: detail:   4KB PAGES: 0x0000000000000200
> > xc: detail:   2MB PAGES: 0x00000000000003fd
> > xc: detail:   1GB PAGES: 0x0000000000000006
> > xc: detail: elf_load_binary: phdr 0 at 0x7f516cb85000 -> 0x7f516cc3aef1
> > domainbuilder: detail: xc_dom_gnttab_hvm_seed: called, pfn=0x20fc00
> > libxl: debug: libxl_device.c:269:libxl__device_disk_set_backend: Disk
> > vdev=hda spec.backend=qdisk
> > libxl: debug: libxl_event.c:633:libxl__ev_xswatch_deregister: watch
> > w=0xa1b070: deregister unregistered
> > domainbuilder: detail: xc_dom_allocate: cmdline=" -d 5", features=""
> > libxl: debug: libxl_dom.c:540:libxl__build_pv: pv kernel mapped 0 path
> > /usr/lib/xen/boot/ioemu-stubdom.gz
> > domainbuilder: detail: xc_dom_kernel_file:
> > filename="/usr/lib/xen/boot/ioemu-stubdom.gz"
> > domainbuilder: detail: xc_dom_malloc_filemap    : 2582 kB
> > domainbuilder: detail: xc_dom_malloc            : 14326 kB
> > domainbuilder: detail: xc_dom_do_gunzip: unzip ok, 0x285849 -> 0xdfda70
> > domainbuilder: detail: xc_dom_boot_xen_init: ver 4.5, caps xen-3.0-x86_64 
> > xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p hvm-3.0-x86_64 
> > 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 bzImage loader
> > ... 
> > domainbuilder: detail: xc_dom_probe_bzimage_kernel: kernel is not a
> > bzImage
> > domainbuilder: detail: loader probe failed
> > domainbuilder: detail: xc_dom_find_loader: trying ELF-generic loader ... 
> > domainbuilder: detail: loader probe OK
> > xc: detail: elf_parse_binary: phdr: paddr=0x0 memsz=0x562068
> > xc: detail: elf_parse_binary: memory: 0x0 -> 0x562068
> > xc: detail: elf_xen_parse: __xen_guest: "GUEST_OS=Mini-OS,XEN_VER=xen-
> > 3.0,VIRT_BASE=0x0,ELF_PADDR_OFFSET=0x0,HYPERCALL_PAGE=0x2,LOADER=generic"
> > xc: detail: elf_xen_parse_guest_info: GUEST_OS="Mini-OS"
> > xc: detail: elf_xen_parse_guest_info: XEN_VER="xen-3.0"
> > xc: detail: elf_xen_parse_guest_info: VIRT_BASE="0x0"
> > xc: detail: elf_xen_parse_guest_info: ELF_PADDR_OFFSET="0x0"
> > xc: detail: elf_xen_parse_guest_info: HYPERCALL_PAGE="0x2"
> > xc: detail: elf_xen_parse_guest_info: LOADER="generic"
> > xc: detail: elf_xen_addr_calc_check: addresses:
> > xc: detail:     virt_base        = 0x0
> > xc: detail:     elf_paddr_offset = 0x0
> > xc: detail:     virt_offset      = 0x0
> > xc: detail:     virt_kstart      = 0x0
> > xc: detail:     virt_kend        = 0x562068
> > xc: detail:     virt_entry       = 0x0
> > xc: detail:     p2m_base         = 0xffffffffffffffff
> > domainbuilder: detail: xc_dom_parse_elf_kernel: xen-3.0-x86_64: 0x0 ->
> > 0x562068
> > domainbuilder: detail: xc_dom_mem_init: mem 32 MB, pages 0x2000 pages, 4k
> > each
> > domainbuilder: detail: xc_dom_mem_init: 0x2000 pages
> > domainbuilder: detail: xc_dom_boot_mem_init: called
> > domainbuilder: detail: x86_compat: guest xen-3.0-x86_64, address size 64
> > domainbuilder: detail: xc_dom_build_image: called
> > domainbuilder: detail: xc_dom_alloc_segment:   kernel       : 0x0 ->
> > 0x563000  (pfn 0x0 + 0x563 pages)
> > domainbuilder: detail: xc_dom_pfn_to_ptr_retcount: domU mapping: pfn
> > 0x0+0x563 at 0x7f51688ee000
> > xc: detail: elf_load_binary: phdr 0 at 0x7f51688ee000 -> 0x7f5168e50068
> > domainbuilder: detail: xc_dom_alloc_segment:   phys2mach    : 0x563000 ->
> > 0x573000  (pfn 0x563 + 0x10 pages)
> > domainbuilder: detail: xc_dom_pfn_to_ptr_retcount: domU mapping: pfn
> > 0x563+0x10 at 0x7f516cc35000
> > domainbuilder: detail: xc_dom_alloc_page   :   start info   : 0x573000
> > (pfn 0x573)
> > domainbuilder: detail: xc_dom_alloc_page   :   xenstore     : 0x574000
> > (pfn 0x574)
> > domainbuilder: detail: xc_dom_alloc_page   :   console      : 0x575000
> > (pfn 0x575)
> > domainbuilder: detail: nr_page_tables: 0x0000ffffffffffff/48:
> > 0x0000000000000000 -> 0x0000ffffffffffff, 1 table(s)
> > domainbuilder: detail: nr_page_tables: 0x0000007fffffffff/39:
> > 0x0000000000000000 -> 0x0000007fffffffff, 1 table(s)
> > domainbuilder: detail: nr_page_tables: 0x000000003fffffff/30:
> > 0x0000000000000000 -> 0x000000003fffffff, 1 table(s)
> > domainbuilder: detail: nr_page_tables: 0x00000000001fffff/21:
> > 0x0000000000000000 -> 0x00000000007fffff, 4 table(s)
> > domainbuilder: detail: xc_dom_alloc_segment:   page tables  : 0x576000 ->
> > 0x57d000  (pfn 0x576 + 0x7 pages)
> > domainbuilder: detail: xc_dom_pfn_to_ptr_retcount: domU mapping: pfn
> > 0x576+0x7 at 0x7f516cc2e000
> > domainbuilder: detail: xc_dom_alloc_page   :   boot stack   : 0x57d000
> > (pfn 0x57d)
> > domainbuilder: detail: xc_dom_build_image  : virt_alloc_end : 0x57e000
> > domainbuilder: detail: xc_dom_build_image  : virt_pgtab_end : 0x800000
> > domainbuilder: detail: xc_dom_boot_image: called
> > domainbuilder: detail: arch_setup_bootearly: doing nothing
> > domainbuilder: detail: xc_dom_compat_check: supported guest type: xen-
> > 3.0-x86_64 <= matches
> > domainbuilder: detail: xc_dom_compat_check: supported guest type: xen-
> > 3.0-x86_32p
> > domainbuilder: detail: xc_dom_compat_check: supported guest type: hvm-
> > 3.0-x86_32
> > domainbuilder: detail: xc_dom_compat_check: supported guest type: hvm-
> > 3.0-x86_32p
> > domainbuilder: detail: xc_dom_compat_check: supported guest type: hvm-
> > 3.0-x86_64
> > domainbuilder: detail: xc_dom_update_guest_p2m: dst 64bit, pages 0x2000
> > domainbuilder: detail: clear_page: pfn 0x575, mfn 0x7ca0be
> > domainbuilder: detail: clear_page: pfn 0x574, mfn 0x7ca0bf
> > domainbuilder: detail: xc_dom_pfn_to_ptr_retcount: domU mapping: pfn
> > 0x573+0x1 at 0x7f516ccdc000
> > domainbuilder: detail: start_info_x86_64: called
> > domainbuilder: detail: setup_hypercall_page: vaddr=0x2000 pfn=0x2
> > domainbuilder: detail: domain builder memory footprint
> > domainbuilder: detail:    allocated
> > domainbuilder: detail:       malloc             : 14426 kB
> > domainbuilder: detail:       anon mmap          : 0 bytes
> > domainbuilder: detail:    mapped
> > domainbuilder: detail:       file mmap          : 2582 kB
> > domainbuilder: detail:       domU mmap          : 5612 kB
> > domainbuilder: detail: arch_setup_bootlate: shared_info: pfn 0x0, mfn
> > 0xcdefb
> > domainbuilder: detail: shared_info_x86_64: called
> > domainbuilder: detail: vcpu_x86_64: called
> > domainbuilder: detail: vcpu_x86_64: cr3: pfn 0x576 mfn 0x7ca0bd
> > domainbuilder: detail: launch_vm: called, ctxt=0x7f516ccdd004
> > domainbuilder: detail: xc_dom_release: called
> > libxl: debug: libxl_device.c:269:libxl__device_disk_set_backend: Disk
> > vdev=hda spec.backend=qdisk
> > libxl: debug: libxl_event.c:633:libxl__ev_xswatch_deregister: watch
> > w=0xa1e540: deregister unregistered
> > libxl: debug: libxl_dm.c:1437:libxl__spawn_local_dm: Spawning device-
> > model /usr/lib/xen/bin/qemu-dm with arguments:
> > libxl: debug: libxl_dm.c:1439:libxl__spawn_local_dm:  
> > /usr/lib/xen/bin/qemu-dm
> > libxl: debug: libxl_dm.c:1439:libxl__spawn_local_dm:   -d
> > libxl: debug: libxl_dm.c:1439:libxl__spawn_local_dm:   6
> > libxl: debug: libxl_dm.c:1439:libxl__spawn_local_dm:   -domain-name
> > libxl: debug: libxl_dm.c:1439:libxl__spawn_local_dm:   win7_test-dm
> > libxl: debug: libxl_dm.c:1439:libxl__spawn_local_dm:   -vnc
> > libxl: debug: libxl_dm.c:1439:libxl__spawn_local_dm:   0.0.0.0:0
> > libxl: debug: libxl_dm.c:1439:libxl__spawn_local_dm:   -vncunused
> > libxl: debug: libxl_dm.c:1439:libxl__spawn_local_dm:   -M
> > libxl: debug: libxl_dm.c:1439:libxl__spawn_local_dm:   xenpv
> > libxl: debug: libxl_event.c:581:libxl__ev_xswatch_register: watch
> > w=0xa1a028 wpath=/local/domain/0/device-model/6/state token=3/0: register
> > slotnum=3
> > libxl: debug: libxl_create.c:1520:do_domain_create: ao 0xa190e0:
> > inprogress: poller=0xa189c0, flags=i
> > libxl: debug: libxl_event.c:518:watchfd_callback: watch w=0xa1a028
> > wpath=/local/domain/0/device-model/6/state token=3/0: event
> > epath=/local/domain/0/device-model/6/state
> > libxl: debug: libxl_event.c:518:watchfd_callback: watch w=0xa1a028
> > wpath=/local/domain/0/device-model/6/state token=3/0: event
> > epath=/local/domain/0/device-model/6/state
> > libxl: debug: libxl_event.c:619:libxl__ev_xswatch_deregister: watch
> > w=0xa1a028 wpath=/local/domain/0/device-model/6/state token=3/0:
> > deregister slotnum=3
> > libxl: debug: libxl_event.c:633:libxl__ev_xswatch_deregister: watch
> > w=0xa1a028: deregister unregistered
> > libxl: debug: libxl_event.c:581:libxl__ev_xswatch_register: watch
> > w=0xa23858 wpath=/local/domain/0/backend/vif/6/0/state token=3/1:
> > register slotnum=3
> > libxl: debug: libxl_event.c:518:watchfd_callback: watch w=0xa23858
> > wpath=/local/domain/0/backend/vif/6/0/state token=3/1: event
> > epath=/local/domain/0/backend/vif/6/0/state
> > libxl: debug: libxl_event.c:838:devstate_watch_callback: backend
> > /local/domain/0/backend/vif/6/0/state wanted state 2 still waiting state
> > 1
> > libxl: debug: libxl_event.c:518:watchfd_callback: watch w=0xa23858
> > wpath=/local/domain/0/backend/vif/6/0/state token=3/1: event
> > epath=/local/domain/0/backend/vif/6/0/state
> > libxl: debug: libxl_event.c:834:devstate_watch_callback: backend
> > /local/domain/0/backend/vif/6/0/state wanted state 2 ok
> > libxl: debug: libxl_event.c:619:libxl__ev_xswatch_deregister: watch
> > w=0xa23858 wpath=/local/domain/0/backend/vif/6/0/state token=3/1:
> > deregister slotnum=3
> > libxl: debug: libxl_event.c:633:libxl__ev_xswatch_deregister: watch
> > w=0xa23858: deregister unregistered
> > libxl: debug: libxl_event.c:633:libxl__ev_xswatch_deregister: watch
> > w=0xa238e0: deregister unregistered
> > libxl: error: libxl_dm.c:1284:stubdom_pvqemu_cb: error connecting nics
> > devices: No such file or directory
> > libxl: debug: libxl_dm.c:1613:kill_device_model: Device Model signaled
> > libxl: error: libxl_device.c:797:libxl__initiate_device_remove: unable to
> > get my domid
> > libxl: debug: libxl_event.c:633:libxl__ev_xswatch_deregister: watch
> > w=0xa241a0: deregister unregistered
> > libxl: error: libxl_device.c:797:libxl__initiate_device_remove: unable to
> > get my domid
> > libxl: debug: libxl_event.c:633:libxl__ev_xswatch_deregister: watch
> > w=0xa243d0: deregister unregistered
> > libxl: error: libxl_device.c:797:libxl__initiate_device_remove: unable to
> > get my domid
> > libxl: debug: libxl_event.c:633:libxl__ev_xswatch_deregister: watch
> > w=0xa24760: deregister unregistered
> > libxl: error: libxl_device.c:797:libxl__initiate_device_remove: unable to
> > get my domid
> > libxl: debug: libxl_event.c:633:libxl__ev_xswatch_deregister: watch
> > w=0xa24e50: deregister unregistered
> > libxl: error: libxl.c:1652:devices_destroy_cb: libxl__devices_destroy
> > failed for 6
> > libxl: info: libxl.c:1698:devices_destroy_cb: forked pid 2373 for destroy
> > of domain 6
> > libxl: debug: libxl_event.c:581:libxl__ev_xswatch_register: watch
> > w=0xa255f8 wpath=/local/domain/0/backend/vif/5/0/state token=3/2:
> > register slotnum=3
> > libxl: debug: libxl_event.c:518:watchfd_callback: watch w=0xa255f8
> > wpath=/local/domain/0/backend/vif/5/0/state token=3/2: event
> > epath=/local/domain/0/backend/vif/5/0/state
> > libxl: debug: libxl_event.c:838:devstate_watch_callback: backend
> > /local/domain/0/backend/vif/5/0/state wanted state 2 still waiting state
> > 1
> > libxl: debug: libxl_event.c:518:watchfd_callback: watch w=0xa255f8
> > wpath=/local/domain/0/backend/vif/5/0/state token=3/2: event
> > epath=/local/domain/0/backend/vif/5/0/state
> > libxl: debug: libxl_event.c:834:devstate_watch_callback: backend
> > /local/domain/0/backend/vif/5/0/state wanted state 2 ok
> > libxl: debug: libxl_event.c:619:libxl__ev_xswatch_deregister: watch
> > w=0xa255f8 wpath=/local/domain/0/backend/vif/5/0/state token=3/2:
> > deregister slotnum=3
> > libxl: debug: libxl_event.c:633:libxl__ev_xswatch_deregister: watch
> > w=0xa255f8: deregister unregistered
> > libxl: debug: libxl_event.c:633:libxl__ev_xswatch_deregister: watch
> > w=0xa25680: deregister unregistered
> > libxl: error: libxl_create.c:1362:domcreate_attach_vtpms: unable to add
> > nic devices
> > libxl: error: libxl.c:1578:libxl__destroy_domid: non-existant domain 6
> > libxl: error: libxl.c:1510:stubdom_destroy_callback: unable to destroy
> > stubdom with domid 6
> > libxl: error: libxl_device.c:797:libxl__initiate_device_remove: unable to
> > get my domid
> > libxl: debug: libxl_event.c:633:libxl__ev_xswatch_deregister: watch
> > w=0xa26000: deregister unregistered
> > libxl: error: libxl_device.c:797:libxl__initiate_device_remove: unable to
> > get my domid
> > libxl: debug: libxl_event.c:633:libxl__ev_xswatch_deregister: watch
> > w=0xa261c0: deregister unregistered
> > libxl: error: libxl_device.c:797:libxl__initiate_device_remove: unable to
> > get my domid
> > libxl: debug: libxl_event.c:633:libxl__ev_xswatch_deregister: watch
> > w=0xa264b0: deregister unregistered
> > libxl: error: libxl.c:1652:devices_destroy_cb: libxl__devices_destroy
> > failed for 5
> > libxl: info: libxl.c:1698:devices_destroy_cb: forked pid 2393 for destroy
> > of domain 5
> > libxl: error: libxl_create.c:1482:domcreate_destruction_cb: unable to
> > destroy domain 5 following failed creation
> > libxl: debug: libxl_event.c:1774:libxl__ao_complete: ao 0xa190e0:
> > complete, rc=-3
> > libxl: debug: libxl_event.c:1746:libxl__ao__destroy: ao 0xa190e0: destroy
> > xc: debug: hypercall buffer: total allocations:1397 total releases:1397
> > xc: debug: hypercall buffer: current allocations:0 maximum allocations:4
> > xc: debug: hypercall buffer: cache current size:4
> > xc: debug: hypercall buffer: cache hits:1373 misses:4 toobig:20
> > #########
> > xl info
> > #########
> > host                   : xenstubdoms
> > release                : 4.2.5-1-ARCH
> > version                : #1 SMP PREEMPT Tue Oct 27 08:13:28 CET 2015
> > machine                : x86_64
> > nr_cpus                : 8
> > max_cpu_id             : 7
> > nr_nodes               : 1
> > cores_per_socket       : 4
> > threads_per_core       : 2
> > cpu_mhz                : 3605
> > hw_caps                :
> > bfebfbff:28100800:00000000:00003f00:179ae3bf:00000000:00000001:00000000
> > virt_caps              : hvm
> > total_memory           : 32721
> > free_memory            : 31336
> > sharing_freed_memory   : 0
> > sharing_used_memory    : 0
> > outstanding_claims     : 0
> > free_cpus              : 0
> > xen_major              : 4
> > xen_minor              : 5
> > xen_extra              : .2
> > xen_version            : 4.5.2
> > xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32
> > hvm-3.0-x86_32p hvm-3.0-x86_64 
> > xen_scheduler          : credit
> > xen_pagesize           : 4096
> > platform_params        : virt_start=0xffff800000000000
> > xen_changeset          : 
> > xen_commandline        : console=vga,com1 com1=57600i guest_loglvl=all
> > dom0_mem=1024M,max:1512M loglvl=all
> > cc_compiler            : gcc (GCC) 5.2.0
> > cc_compile_by          : user
> > cc_compile_domain      : local
> > cc_compile_date        : Wed Nov 11 15:11:35 CET 2015
> > xend_config_format     : 4
> > #########
> > 
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@xxxxxxxxxxxxx
> > http://lists.xen.org/xen-devel

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