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[Xen-users] Fwd: Requesting Help - Error: pci: PCI Backend and pci-stub don't own device

Dropped CC.. Back to the list. (Sorry)

---------- Forwarded message ----------
From: Mike Neiderhauser <mikeneiderhauser@xxxxxxxxx>
Date: Thu, Feb 6, 2014 at 9:11 AM
Subject: Re: [Xen-users] Requesting Help - Error: pci: PCI Backend and pci-stub don't own device
To: Ian Campbell <Ian.Campbell@xxxxxxxxxx>


It appears that it cannot obtain the RAM mapping for this PCI device.


I rebooted the Host.  I ran assigned pci devices to pciback. The output looks like:
root@fiat:~# ./dev_mgmt.sh 
Loading Kernel Module 'xen-pciback'
Calling function pciback_dev for: 
PCI DEVICE 0000:03:00.0
Unbinding 0000:03:00.0 from igb
Binding 0000:03:00.0 to pciback

PCI DEVICE 0000:03:00.1
Unbinding 0000:03:00.1 from igb
Binding 0000:03:00.1 to pciback

PCI DEVICE 0000:04:00.0
Unbinding 0000:04:00.0 from igb
Binding 0000:04:00.0 to pciback

PCI DEVICE 0000:04:00.1
Unbinding 0000:04:00.1 from igb
Binding 0000:04:00.1 to pciback

PCI DEVICE 0000:05:00.0
Unbinding 0000:05:00.0 from bnx2
Binding 0000:05:00.0 to pciback

PCI DEVICE 0000:05:00.1
Unbinding 0000:05:00.1 from bnx2
Binding 0000:05:00.1 to pciback

Listing PCI Devices Available to Xen
0000:03:00.0
0000:03:00.1
0000:04:00.0
0000:04:00.1
0000:05:00.0
0000:05:00.1

#########################################################################################
root@fiat:~# xl -vvv create /etc/xen/ubuntu-hvm-0.cfg 
Parsing config from /etc/xen/ubuntu-hvm-0.cfg
WARNING: ignoring device_model directive.
WARNING: Use "device_model_override" instead if you really want a non-default device_model
libxl: debug: libxl_create.c:1230:do_domain_create: ao 0x210c360: create: how=(nil) callback=(nil) poller=0x210c3c0
libxl: debug: libxl_device.c:257:libxl__device_disk_set_backend: Disk vdev=hda spec.backend=unknown
libxl: debug: libxl_device.c:296:libxl__device_disk_set_backend: Disk vdev=hda, using backend phy
libxl: debug: libxl_create.c:675:initiate_domain_create: running bootloader
libxl: debug: libxl_bootloader.c:321:libxl__bootloader_run: not a PV domain, skipping bootloader
libxl: debug: libxl_event.c:608:libxl__ev_xswatch_deregister: watch w=0x210c728: deregister unregistered
libxl: debug: libxl_numa.c:475:libxl__get_numa_candidate: New best NUMA placement candidate found: nr_nodes=1, nr_cpus=4, nr_vcpus=3, free_memkb=2980
libxl: detail: libxl_dom.c:195:numa_place_domain: NUMA placement candidate with 1 nodes, 4 cpus and 2980 KB free selected
xc: detail: elf_parse_binary: phdr: paddr=0x100000 memsz=0xa69a4
xc: detail: elf_parse_binary: memory: 0x100000 -> 0x1a69a4
xc: info: VIRTUAL MEMORY ARRANGEMENT:
  Loader:        0000000000100000->00000000001a69a4
  Modules:       0000000000000000->0000000000000000
  TOTAL:         0000000000000000->000000003f800000
  ENTRY ADDRESS: 0000000000100608
xc: info: PHYSICAL MEMORY ALLOCATION:
  4KB PAGES: 0x0000000000000200
  2MB PAGES: 0x00000000000001fb
  1GB PAGES: 0x0000000000000000
xc: detail: elf_load_binary: phdr 0 at 0x7f022c779000 -> 0x7f022c81682d
libxl: debug: libxl_device.c:257:libxl__device_disk_set_backend: Disk vdev=hda spec.backend=phy
libxl: debug: libxl_event.c:559:libxl__ev_xswatch_register: watch w=0x2112f48 wpath=/local/domain/0/backend/vbd/2/768/state token=3/0: register slotnum=3
libxl: debug: libxl_create.c:1243:do_domain_create: ao 0x210c360: inprogress: poller=0x210c3c0, flags=i
libxl: debug: libxl_event.c:503:watchfd_callback: watch w=0x2112f48 wpath=/local/domain/0/backend/vbd/2/768/state token=3/0: event epath=/local/domain/0/backend/vbd/2/768/state
libxl: debug: libxl_event.c:647:devstate_watch_callback: backend /local/domain/0/backend/vbd/2/768/state wanted state 2 still waiting state 1
libxl: debug: libxl_event.c:503:watchfd_callback: watch w=0x2112f48 wpath=/local/domain/0/backend/vbd/2/768/state token=3/0: event epath=/local/domain/0/backend/vbd/2/768/state
libxl: debug: libxl_event.c:643:devstate_watch_callback: backend /local/domain/0/backend/vbd/2/768/state wanted state 2 ok
libxl: debug: libxl_event.c:596:libxl__ev_xswatch_deregister: watch w=0x2112f48 wpath=/local/domain/0/backend/vbd/2/768/state token=3/0: deregister slotnum=3
libxl: debug: libxl_event.c:608:libxl__ev_xswatch_deregister: watch w=0x2112f48: deregister unregistered
libxl: debug: libxl_device.c:959:device_hotplug: calling hotplug script: /etc/xen/scripts/block add
libxl: debug: libxl_dm.c:1206:libxl__spawn_local_dm: Spawning device-model /usr/bin/qemu-system-i386 with arguments:
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   /usr/bin/qemu-system-i386
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   -xen-domid
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   2
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   -chardev
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   socket,id=libxl-cmd,path=/var/run/xen/qmp-libxl-2,server,nowait
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   -mon
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   chardev=libxl-cmd,mode=control
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   -name
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   ubuntu-hvm-0
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   -vnc
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   0.0.0.0:0,to=99
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   -global
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   isa-fdc.driveA=
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   -serial
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   pty
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   -vga
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   cirrus
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   -global
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   vga.vram_size_mb=8
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   -boot
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   order=c
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   -smp
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   2,maxcpus=2
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   -device
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   rtl8139,id=nic0,netdev=net0,mac=00:16:3e:23:44:2c
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   -netdev
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   type=tap,id=net0,ifname=vif2.0-emu,script=no,downscript=no
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   -M
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   xenfv
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   -m
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   1016
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   -drive
libxl: debug: libxl_dm.c:1208:libxl__spawn_local_dm:   file=/dev/ubuntu-vg/ubuntu-hvm-0,if=ide,index=0,media=disk,format=raw,cache=writeback
libxl: debug: libxl_event.c:559:libxl__ev_xswatch_register: watch w=0x210c960 wpath=/local/domain/0/device-model/2/state token=3/1: register slotnum=3
libxl: debug: libxl_event.c:503:watchfd_callback: watch w=0x210c960 wpath=/local/domain/0/device-model/2/state token=3/1: event epath=/local/domain/0/device-model/2/state
libxl: debug: libxl_event.c:503:watchfd_callback: watch w=0x210c960 wpath=/local/domain/0/device-model/2/state token=3/1: event epath=/local/domain/0/device-model/2/state
libxl: debug: libxl_event.c:596:libxl__ev_xswatch_deregister: watch w=0x210c960 wpath=/local/domain/0/device-model/2/state token=3/1: deregister slotnum=3
libxl: debug: libxl_event.c:608:libxl__ev_xswatch_deregister: watch w=0x210c960: deregister unregistered
libxl: debug: libxl_qmp.c:707:libxl__qmp_initialize: connected to /var/run/xen/qmp-libxl-2
libxl: debug: libxl_qmp.c:299:qmp_handle_response: message type: qmp
libxl: debug: libxl_qmp.c:555:qmp_send_prepare: next qmp command: '{
    "execute": "qmp_capabilities",
    "id": 1
}
'
libxl: debug: libxl_qmp.c:299:qmp_handle_response: message type: return
libxl: debug: libxl_qmp.c:555:qmp_send_prepare: next qmp command: '{
    "execute": "query-chardev",
    "id": 2
}
'
libxl: debug: libxl_qmp.c:299:qmp_handle_response: message type: return
libxl: debug: libxl_qmp.c:555:qmp_send_prepare: next qmp command: '{
    "execute": "change",
    "id": 3,
    "arguments": {
        "device": "vnc",
        "target": "password",
        "arg": ""
    }
}
'
libxl: debug: libxl_qmp.c:299:qmp_handle_response: message type: return
libxl: debug: libxl_qmp.c:555:qmp_send_prepare: next qmp command: '{
    "execute": "query-vnc",
    "id": 4
}
'
libxl: debug: libxl_qmp.c:299:qmp_handle_response: message type: return
libxl: debug: libxl_event.c:559:libxl__ev_xswatch_register: watch w=0x210e8a8 wpath=/local/domain/0/backend/vif/2/0/state token=3/2: register slotnum=3
libxl: debug: libxl_event.c:503:watchfd_callback: watch w=0x210e8a8 wpath=/local/domain/0/backend/vif/2/0/state token=3/2: event epath=/local/domain/0/backend/vif/2/0/state
libxl: debug: libxl_event.c:647:devstate_watch_callback: backend /local/domain/0/backend/vif/2/0/state wanted state 2 still waiting state 1
libxl: debug: libxl_event.c:503:watchfd_callback: watch w=0x210e8a8 wpath=/local/domain/0/backend/vif/2/0/state token=3/2: event epath=/local/domain/0/backend/vif/2/0/state
libxl: debug: libxl_event.c:643:devstate_watch_callback: backend /local/domain/0/backend/vif/2/0/state wanted state 2 ok
libxl: debug: libxl_event.c:596:libxl__ev_xswatch_deregister: watch w=0x210e8a8 wpath=/local/domain/0/backend/vif/2/0/state token=3/2: deregister slotnum=3
libxl: debug: libxl_event.c:608:libxl__ev_xswatch_deregister: watch w=0x210e8a8: deregister unregistered
libxl: debug: libxl_device.c:959:device_hotplug: calling hotplug script: /etc/xen/scripts/vif-bridge online
libxl: debug: libxl_device.c:959:device_hotplug: calling hotplug script: /etc/xen/scripts/vif-bridge add
libxl: debug: libxl_qmp.c:707:libxl__qmp_initialize: connected to /var/run/xen/qmp-libxl-2
libxl: debug: libxl_qmp.c:299:qmp_handle_response: message type: qmp
libxl: debug: libxl_qmp.c:555:qmp_send_prepare: next qmp command: '{
    "execute": "qmp_capabilities",
    "id": 1
}
'
libxl: debug: libxl_qmp.c:299:qmp_handle_response: message type: return
libxl: debug: libxl_qmp.c:555:qmp_send_prepare: next qmp command: '{
    "execute": "device_add",
    "id": 2,
    "arguments": {
        "driver": "xen-pci-passthrough",
        "id": "pci-pt-03_00.0",
        "hostaddr": "0000:03:00.0"
    }
}
'
libxl: error: libxl_qmp.c:454:qmp_next: Socket read error: Connection reset by peer
libxl: error: libxl_qmp.c:702:libxl__qmp_initialize: Connection error: Connection refused
libxl: error: libxl_qmp.c:702:libxl__qmp_initialize: Connection error: Connection refused
libxl: error: libxl_qmp.c:702:libxl__qmp_initialize: Connection error: Connection refused
libxl: debug: libxl_pci.c:81:libxl__create_pci_backend: Creating pci backend
libxl: debug: libxl_event.c:1737:libxl__ao_progress_report: ao 0x210c360: progress report: ignored
libxl: debug: libxl_event.c:1569:libxl__ao_complete: ao 0x210c360: complete, rc=0
libxl: debug: libxl_event.c:1541:libxl__ao__destroy: ao 0x210c360: destroy
Daemon running with PID 3214
xc: debug: hypercall buffer: total allocations:793 total releases:793
xc: debug: hypercall buffer: current allocations:0 maximum allocations:4
xc: debug: hypercall buffer: cache current size:4
xc: debug: hypercall buffer: cache hits:785 misses:4 toobig:4

##################################################################################
root@fiat:/var/log/xen# cat qemu-dm-ubuntu-hvm-0.log 
char device redirected to /dev/pts/5 (label serial0)
qemu: hardware error: xen: failed to populate ram at 40030000
CPU #0:
EAX=00000000 EBX=00000000 ECX=00000000 EDX=00000633
ESI=00000000 EDI=00000000 EBP=00000000 ESP=00000000
EIP=0000fff0 EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=1
ES =0000 00000000 0000ffff 00009300
CS =f000 ffff0000 0000ffff 00009b00
SS =0000 00000000 0000ffff 00009300
DS =0000 00000000 0000ffff 00009300
FS =0000 00000000 0000ffff 00009300
GS =0000 00000000 0000ffff 00009300
LDT=0000 00000000 0000ffff 00008200
TR =0000 00000000 0000ffff 00008b00
GDT=     00000000 0000ffff
IDT=     00000000 0000ffff
CR0=60000010 CR2=00000000 CR3=00000000 CR4=00000000
DR0=00000000 DR1=00000000 DR2=00000000 DR3=00000000 
DR6=ffff0ff0 DR7=00000400
EFER=0000000000000000
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
XMM00=00000000000000000000000000000000 XMM01=00000000000000000000000000000000
XMM02=00000000000000000000000000000000 XMM03=00000000000000000000000000000000
XMM04=00000000000000000000000000000000 XMM05=00000000000000000000000000000000
XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000
CPU #1:
EAX=00000000 EBX=00000000 ECX=00000000 EDX=00000633
ESI=00000000 EDI=00000000 EBP=00000000 ESP=00000000
EIP=0000fff0 EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=1
ES =0000 00000000 0000ffff 00009300
CS =f000 ffff0000 0000ffff 00009b00
SS =0000 00000000 0000ffff 00009300
DS =0000 00000000 0000ffff 00009300
FS =0000 00000000 0000ffff 00009300
GS =0000 00000000 0000ffff 00009300
LDT=0000 00000000 0000ffff 00008200
TR =0000 00000000 0000ffff 00008b00
GDT=     00000000 0000ffff
IDT=     00000000 0000ffff
CR0=60000010 CR2=00000000 CR3=00000000 CR4=00000000
DR0=00000000 DR1=00000000 DR2=00000000 DR3=00000000 
DR6=ffff0ff0 DR7=00000400
EFER=0000000000000000
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
XMM00=00000000000000000000000000000000 XMM01=00000000000000000000000000000000
XMM02=00000000000000000000000000000000 XMM03=00000000000000000000000000000000
XMM04=00000000000000000000000000000000 XMM05=00000000000000000000000000000000
XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000

#########################################################################################
/etc/default/grub
GRUB_DEFAULT="Xen 4.3-amd64"
GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""
# biosdevname=0
GRUB_CMDLINE_XEN="dom0_mem=1024M dom0_max_vcpus=1"


On Thu, Feb 6, 2014 at 8:23 AM, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:
On Wed, 2014-02-05 at 17:52 -0500, Mike Neiderhauser wrote:

> xl create /etc/xen/ubuntu-hvm-0.cfg returns:

Can you run "xl -vvv create ..." please.
[...]

> libxl: error: libxl_qmp.c:454:qmp_next: Socket read error: Connection reset by peer
> libxl: error: libxl_qmp.c:702:libxl__qmp_initialize: Connection error: Connection refused
> libxl: error: libxl_qmp.c:702:libxl__qmp_initialize: Connection error: Connection refused
> libxl: error: libxl_qmp.c:702:libxl__qmp_initialize: Connection error: Connection refused

These suggest there might be some useful info
in /var/log/xen/qemu-dm-${domname}.log.

Ian.




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