Bug 548126

Description of problem:
I downloaded a domU guest and kernel (Ubuntu 9.10 32-bit) from http://www.stacklet.com/
Created a libvirt xml file, defined the domain and tried to start it.
The domain refuses to start and xenstored segfaults.

Version-Release number of selected component (if applicable):
xenner 0.41

How reproducible:


Steps to Reproduce:
$ sudo apt-get install xen xenner
$ /etc/init.d/xenner start
$ ### download a domU guest image and kernel (Ubuntu 9.10 32-bit) from
http://www.stacklet.com/
$ sudo -s
# invoke-rc.d apparmor stop
# update-rc.d -f apparmor remove  # disable apparmor
# apparmor_status
# cd /var/lib/libvirt/images
# vi ubuntu-domU.xml  #create libvirt config
# virsh define ubuntu-domU.xml
# virsh start ubuntu-domU
  
Actual results:

Here is the session and logs:

####################################################################
+ virsh start Ubuntu-domU-x86-1
Connecting to uri: qemu:///system
error: Failed to start domain Ubuntu-domU-x86-1
error: internal error unable to start guest: [xenner,1] qemu_monitor_config: unix:/var/run/libvirt/qemu/Ubuntu-domU-x86-1.monitor,server,nowait
[xenner,1] qemu_serial_config: pty
[xenner,1] qemu_disk_config_blkbackd: file=/var/lib/libvirt/images/ubuntu.9-10.x86.img,if=xen,index=0
[xenner,1] qemu_net_config_netbackd: nic,macaddr=54:52:07:2d:e1:81,vlan=0
[xenner,1] qemu_net_config_netbackd: 0: mac="54:52:07:2d:e1:81"
[xenner,1] qemu_net_config_netbackd: tap,fd=16,vlan=0
[xenner,1] qemu_net_config_netbackd: 0: if="vnet3"
started as: "/usr/bin/xenner" "-S" "-M" "pc" "-m" "2048" "-smp" "4" "-name" "Ubuntu-domU-x86-1" "-uuid" "4027c80e-b5d5-a986-18ed-5887d623d0bb" "-domid" "9" "-nographic" "-monitor" "unix:/var/run/libvirt/qemu/Ubuntu-domU-x86-1.monitor,server,nowait" "-boot" "c" "-kernel" "/home/greno/xen/domU/x86/ubuntu-9.10-karmic/kernel/boot/vmlinuz-2.6.31.6" "-append" "xencons=xvc console=tty1 console=xvc0" "-drive" "file=/var/lib/libvirt/images/ubuntu.9-10.x86.img,if=xen,index=0" "-net" "nic,macaddr=54:52:07:2d:e1:81,vlan=0" "-n

## /var/log/messages: xenstored segfaults when we 'virsh start...'
Dec 15 19:47:47 grp-01-23-02 kernel: [10087.283379] xenstored[23440]: segfault at 0 ip 000000000040672c sp 00007fff3576e190 error 4 in xenstored[400000+12000]


## domain log:
LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin /usr/bin/xenner -S -M pc -m 2048 -smp 4 -name Ubuntu-domU-x86-1 -uuid 4027c80e-b5d5-a986-18ed-5887d623d0bb -domid 8 -nographic -monitor unix:/var/run/libvirt/qemu/Ubuntu-domU-x86-1.monitor,server,nowait -boot c -kernel /home/greno/xen/domU/x86/ubuntu-9.10-karmic/kernel/boot/vmlinuz-2.6.31.6 -append xencons=xvc console=tty1 console=xvc0 -drive file=/var/lib/libvirt/images/ubuntu.9-10.x86.img,if=xen,index=0 -net nic,macaddr=54:52:07:2d:e1:81,vlan=0 -net tap,fd=16,vlan=0 -serial pty -parallel none -usb
[xenner,1] qemu_monitor_config: unix:/var/run/libvirt/qemu/Ubuntu-domU-x86-1.monitor,server,nowait
[xenner,1] qemu_serial_config: pty
[xenner,1] qemu_disk_config_blkbackd: file=/var/lib/libvirt/images/ubuntu.9-10.x86.img,if=xen,index=0
[xenner,1] qemu_net_config_netbackd: nic,macaddr=54:52:07:2d:e1:81,vlan=0
[xenner,1] qemu_net_config_netbackd: 0: mac="54:52:07:2d:e1:81"
[xenner,1] qemu_net_config_netbackd: tap,fd=16,vlan=0
[xenner,1] qemu_net_config_netbackd: 0: if="vnet2"
started as: "/usr/bin/xenner" "-S" "-M" "pc" "-m" "2048" "-smp" "4" "-name" "Ubuntu-domU-x86-1" "-uuid" "4027c80e-b5d5-a986-18ed-5887d623d0bb" "-domid" "8" "-nographic" "-monitor" "unix:/var/run/libvirt/qemu/Ubuntu-domU-x86-1.monitor,server,nowait" "-boot" "c" "-kernel" "/home/greno/xen/domU/x86/ubuntu-9.10-karmic/kernel/boot/vmlinuz-2.6.31.6" "-append" "xencons=xvc console=tty1 console=xvc0" "-drive" "file=/var/lib/libvirt/images/ubuntu.9-10.x86.img,if=xen,index=0" "-net" "nic,macaddr=54:52:07:2d:e1:81,vlan=0" "-net" "tap,fd=16,vlan=0" "-serial" "pty" "-parallel" "none" "-usb"
kvm capability clocksource: ok
kvm capability nop-iodelay: ok
kvm capability mmu-op: not supported
==================== setup ====================
xc_dom_allocate: cmdline="xencons=xvc console=tty1 console=xvc0", features="(null)"
xen_guest_parse: ----- parse kernel -----
xc_dom_kernel_file: filename="/home/greno/xen/domU/x86/ubuntu-9.10-karmic/kernel/boot/vmlinuz-2.6.31.6"
xc_dom_malloc_filemap : 1820 kB
xc_dom_parse_image: called
xc_dom_find_loader: trying ELF-generic loader ... failed
xc_dom_find_loader: trying Linux bzImage loader ... xc_dom_malloc : 3620 kB
xc_dom_do_gunzip: unzip ok, 0x1bf9e6 -> 0x3891a4
OK
elf_parse_binary: phdr: paddr=0x1000000 memsz=0x2a0000
elf_parse_binary: phdr: paddr=0x12a0000 memsz=0x1f3000
elf_parse_binary: memory: 0x1000000 -> 0x1493000
elf_xen_parse_note: GUEST_OS = "linux"
elf_xen_parse_note: GUEST_VERSION = "2.6"
elf_xen_parse_note: XEN_VERSION = "xen-3.0"
elf_xen_parse_note: VIRT_BASE = 0xc0000000
elf_xen_parse_note: ENTRY = 0xc12de000
elf_xen_parse_note: HYPERCALL_PAGE = 0xc1002000
elf_xen_parse_note: FEATURES = "!writable_page_tables|pae_pgdir_above_4gb"
elf_xen_parse_note: PAE_MODE = "yes"
elf_xen_parse_note: LOADER = "generic"
elf_xen_parse_note: unknown xen elf note (0xd)
elf_xen_parse_note: SUSPEND_CANCEL = 0x1
elf_xen_parse_note: HV_START_LOW = 0xf5800000
elf_xen_parse_note: PADDR_OFFSET = 0x0
elf_xen_addr_calc_check: addresses:
virt_base = 0xc0000000
elf_paddr_offset = 0x0
virt_offset = 0xc0000000
virt_kstart = 0xc1000000
virt_kend = 0xc1493000
virt_entry = 0xc12de000
xc_dom_parse_elf_kernel: xen-3.0-x86_32p: 0xc1000000 -> 0xc1493000
[xenner,1] domain_builder: memory: emu 4 MB, m2p 4 MB, guest 2040 MB
xen_emu_load: ----- load xen emu -----
[xenner,1] xen_load_emu_file: loading /usr/lib/xenner/emu32.elf (186892 bytes)
elf_parse_binary: phdr: paddr=0xff000000 memsz=0x2fdc0
elf_parse_binary: memory: 0xff000000 -> 0xff02fdc0
elf_load_binary: phdr 0 at 0x0x7f2f51979000 -> 0x0x7f2f519a5760
xen_emu_setup: ----- memory info -----
xen_emu_setup: ----- emu pgd setup -----
xen_guest_setup: ----- memory setup -----
xc_dom_mem_init: mem 2040 MB, pages 0x7f800 pages, 4k each
xc_dom_mem_init: 0x7f800 pages
xc_dom_malloc : 4080 kB
xen_guest_setup: ----- create start-of-day -----
xc_dom_build_image: called
xc_dom_alloc_segment: kernel : 0xc1000000 -> 0xc1493000 (pfn 0x1000 + 0x493 pages)
xc_dom_pfn_to_ptr: anonymous memory: pfn 0x1000+0x493 at 0x7f2f50b31000
elf_load_binary: phdr 0 at 0x0x7f2f50b31000 -> 0x0x7f2f50dd1000
elf_load_binary: phdr 1 at 0x0x7f2f50dd1000 -> 0x0x7f2f50e61000
xc_dom_alloc_segment: phys2mach : 0xc1493000 -> 0xc1691000 (pfn 0x1493 + 0x1fe pages)
xc_dom_pfn_to_ptr: anonymous memory: pfn 0x1493+0x1fe at 0x7f2f50933000
xc_dom_alloc_page : start info : 0xc1691000 (pfn 0x1691)
xc_dom_alloc_page : xenstore : 0xc1692000 (pfn 0x1692)
xc_dom_alloc_page : console : 0xc1693000 (pfn 0x1693)
nr_page_tables: 0x00000000ffffffff/32: 0x0000000000000000 -> 0x00000000ffffffff, 1 table(s)
nr_page_tables: 0x000000003fffffff/30: 0x00000000c0000000 -> 0x00000000ffffffff, 1 table(s)
nr_page_tables: 0x00000000001fffff/21: 0x00000000c0000000 -> 0x00000000c17fffff, 12 table(s)
xc_dom_alloc_segment: page tables : 0xc1694000 -> 0xc16a2000 (pfn 0x1694 + 0xe pages)
xc_dom_pfn_to_ptr: anonymous memory: pfn 0x1694+0xe at 0x7f2f50925000
xc_dom_alloc_page : boot stack : 0xc16a2000 (pfn 0x16a2)
xc_dom_build_image : virt_alloc_end : 0xc16a3000
xc_dom_build_image : virt_pgtab_end : 0xc1800000
xc_dom_update_guest_p2m: dst 32bit, pages 0x7f800
xc_dom_pfn_to_ptr: anonymous memory: pfn 0x1693+0x1 at 0x7f2f50924000
xc_dom_pfn_to_ptr: anonymous memory: pfn 0x1692+0x1 at 0x7f2f50923000
xc_dom_pfn_to_ptr: anonymous memory: pfn 0x1691+0x1 at 0x7f2f50922000
start_info_x86_32: called
xen_guest_setup: ----- setup xen hypercall page -----
xen_guest_setup: ----- setup vcpu context -----
vcpu_x86_32: called
vcpu_x86_32: cr3: pfn 0x1694 mfn 0x1e94
domain_builder: ----- kvm: state setup -----
xc_dom_release: called
domain_builder: ----- all done -----
[xenner,1] xenstore_device_net: vnic 0: mac="54:52:07:2d:e1:81" if="vnet2" br=""
calibrate tsc ... LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin /usr/bin/xenner -S -M pc -m 2048 -smp 4 -name Ubuntu-domU-x86-1 -uuid 4027c80e-b5d5-a986-18ed-5887d623d0bb -domid 9 -nographic -monitor unix:/var/run/libvirt/qemu/Ubuntu-domU-x86-1.monitor,server,nowait -boot c -kernel /home/greno/xen/domU/x86/ubuntu-9.10-karmic/kernel/boot/vmlinuz-2.6.31.6 -append xencons=xvc console=tty1 console=xvc0 -drive file=/var/lib/libvirt/images/ubuntu.9-10.x86.img,if=xen,index=0 -net nic,macaddr=54:52:07:2d:e1:81,vlan=0 -net tap,fd=16,vlan=0 -serial pty -parallel none -usb
[xenner,1] qemu_monitor_config: unix:/var/run/libvirt/qemu/Ubuntu-domU-x86-1.monitor,server,nowait
[xenner,1] qemu_serial_config: pty
[xenner,1] qemu_disk_config_blkbackd: file=/var/lib/libvirt/images/ubuntu.9-10.x86.img,if=xen,index=0
[xenner,1] qemu_net_config_netbackd: nic,macaddr=54:52:07:2d:e1:81,vlan=0
[xenner,1] qemu_net_config_netbackd: 0: mac="54:52:07:2d:e1:81"
[xenner,1] qemu_net_config_netbackd: tap,fd=16,vlan=0
[xenner,1] qemu_net_config_netbackd: 0: if="vnet3"
started as: "/usr/bin/xenner" "-S" "-M" "pc" "-m" "2048" "-smp" "4" "-name" "Ubuntu-domU-x86-1" "-uuid" "4027c80e-b5d5-a986-18ed-5887d623d0bb" "-domid" "9" "-nographic" "-monitor" "unix:/var/run/libvirt/qemu/Ubuntu-domU-x86-1.monitor,server,nowait" "-boot" "c" "-kernel" "/home/greno/xen/domU/x86/ubuntu-9.10-karmic/kernel/boot/vmlinuz-2.6.31.6" "-append" "xencons=xvc console=tty1 console=xvc0" "-drive" "file=/var/lib/libvirt/images/ubuntu.9-10.x86.img,if=xen,index=0" "-net" "nic,macaddr=54:52:07:2d:e1:81,vlan=0" "-net" "tap,fd=16,vlan=0" "-serial" "pty" "-parallel" "none" "-usb"
kvm capability clocksource: ok
kvm capability nop-iodelay: ok
kvm capability mmu-op: not supported
==================== setup ====================
[xenner,0] xenstore_init_early: can't connect to /var/run/xenstored/socket (xenstored not running?)
xenner_cleanup: ----- cleaning up -----
####################################################################


And if I start it from the command line xenstored segfaults but the domain has a  process still.


Expected results:


Additional info:

attaching pygrub.cfg and domain xml files