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Re: [Libguestfs] Notes on libguestfs with Ubuntu 12.04 (Precise)



On Mon, Apr 16, 2012 at 01:36:03PM +0100, Dale Amon wrote:
> I will pass this on though: during the boot of
> the virt-rescue, I see this:
> 
>   1.605763] ------------[ cut here ]------------
> [    1.606763] WARNING: at arch/x86/kernel/apic/apic.c:1318 setup_local_APIC+0x2af/0x3ac()
> [    1.609763] Hardware name: Bochs
> [    1.611763] Modules linked in:
> [    1.620761] Pid: 1, comm: swapper/0 Not tainted 3.2.0-23-lowlatency #31-Ubuntu
> [    1.623761] Call Trace:
> [    1.636759]  [<c10436c2>] warn_slowpath_common+0x72/0xa0
> [    1.640758]  [<c1548ae7>] ? setup_local_APIC+0x2af/0x3ac
> [    1.643758]  [<c1548ae7>] ? setup_local_APIC+0x2af/0x3ac
> [    1.645757]  [<c1043712>] warn_slowpath_null+0x22/0x30
> [    1.648757]  [<c1548ae7>] setup_local_APIC+0x2af/0x3ac
> [    1.652756]  [<c1786a79>] native_smp_prepare_cpus+0x160/0x1f9
> [    1.654756]  [<c177b7e7>] kernel_init+0x61/0x13f
> [    1.656756]  [<c177b786>] ? start_kernel+0x362/0x362
> [    1.658755]  [<c156a37e>] kernel_thread_helper+0x6/0x10
> [    1.719746] ---[ end trace a7919e7f17c0a725 ]---

Does this stop it from booting, or is it just a warning?  I see
plenty of these, particularly when running experimental kernels.

FWIW on my Ubuntu 12.04 VM:

$ guestfish -N fs exit
$ virt-rescue -a test1.img 
Could not access KVM kernel module: No such file or directory
failed to initialize KVM: No such file or directory
Back to tcg accelerator.
[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 3.2.0-23-generic (buildd crested) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu4) ) #36-Ubuntu SMP Tue Apr 10 20:39:51 UTC 2012 (Ubuntu 3.2.0-23.36-generic 3.2.14)
[    0.000000] Command line: panic=1 console=ttyS0 udevtimeout=300 no_timer_check acpi=off printk.time=1 cgroup_disable=memory selinux=0  TERM=xterm guestfs_rescue=1
[    0.000000] KERNEL supported cpus:
[    0.000000]   Intel GenuineIntel
[    0.000000]   AMD AuthenticAMD
[    0.000000]   Centaur CentaurHauls
[    0.000000] BIOS-provided physical RAM map:
[    0.000000]  BIOS-e820: 0000000000000000 - 000000000009bc00 (usable)
[    0.000000]  BIOS-e820: 000000000009bc00 - 00000000000a0000 (reserved)
[    0.000000]  BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
[    0.000000]  BIOS-e820: 0000000000100000 - 000000001f3fd000 (usable)
[    0.000000]  BIOS-e820: 000000001f3fd000 - 000000001f400000 (reserved)
[    0.000000]  BIOS-e820: 00000000fffc0000 - 0000000100000000 (reserved)
[    0.000000] NX (Execute Disable) protection: active
[    0.000000] DMI 2.4 present.
[    0.000000] No AGP bridge found
[    0.000000] last_pfn = 0x1f3fd max_arch_pfn = 0x400000000
[    0.000000] x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106
[    0.000000] found SMP MP-table at [ffff8800000fdaf0] fdaf0
[    0.000000] init_memory_mapping: 0000000000000000-000000001f3fd000
[    0.000000] RAMDISK: 1f2e9000 - 1f3f0000
[    0.000000] No NUMA configuration found
[    0.000000] Faking a node at 0000000000000000-000000001f3fd000
[    0.000000] Initmem setup node 0 0000000000000000-000000001f3fd000
[    0.000000]   NODE_DATA [000000001f3f5000 - 000000001f3f9fff]
[    0.000000] Zone PFN ranges:
[    0.000000]   DMA      0x00000010 -> 0x00001000
[    0.000000]   DMA32    0x00001000 -> 0x00100000
[    0.000000]   Normal   empty
[    0.000000] Movable zone start PFN for each node
[    0.000000] early_node_map[2] active PFN ranges
[    0.000000]     0: 0x00000010 -> 0x0000009b
[    0.000000]     0: 0x00000100 -> 0x0001f3fd
[    0.000000] SFI: Simple Firmware Interface v0.81 http://simplefirmware.org
[    0.000000] Intel MultiProcessor Specification v1.4
[    0.000000] MPTABLE: OEM ID: BOCHSCPU
[    0.000000] MPTABLE: Product ID: 0.1         
[    0.000000] MPTABLE: APIC at: 0xFEE00000
[    0.000000] Processor #0 (Bootup-CPU)
[    0.000000] IOAPIC[0]: apic_id 1, version 17, address 0xfec00000, GSI 0-23
[    0.000000] Processors: 1
[    0.000000] SMP: Allowing 1 CPUs, 0 hotplug CPUs
[    0.000000] PM: Registered nosave memory: 000000000009b000 - 000000000009c000
[    0.000000] PM: Registered nosave memory: 000000000009c000 - 00000000000a0000
[    0.000000] PM: Registered nosave memory: 00000000000a0000 - 00000000000f0000
[    0.000000] PM: Registered nosave memory: 00000000000f0000 - 0000000000100000
[    0.000000] Allocating PCI resources starting at 1f400000 (gap: 1f400000:e0bc0000)
[    0.000000] Booting paravirtualized kernel on bare hardware
[    0.000000] setup_percpu: NR_CPUS:256 nr_cpumask_bits:256 nr_cpu_ids:1 nr_node_ids:1
[    0.000000] PERCPU: Embedded 28 pages/cpu @ffff88001f000000 s83072 r8192 d23424 u2097152
[    0.000000] Built 1 zonelists in Node order, mobility grouping on.  Total pages: 125875
[    0.000000] Policy zone: DMA32
[    0.000000] Kernel command line: panic=1 console=ttyS0 udevtimeout=300 no_timer_check acpi=off printk.time=1 cgroup_disable=memory selinux=0  TERM=xterm guestfs_rescue=1
[    0.000000] Disabling memory control group subsystem
[    0.000000] PID hash table entries: 2048 (order: 2, 16384 bytes)
[    0.000000] Checking aperture...
[    0.000000] No AGP bridge found
[    0.000000] Memory: 486364k/511988k available (6566k kernel code, 468k absent, 25156k reserved, 6637k data, 920k init)
[    0.000000] SLUB: Genslabs=15, HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1    0.534994] audit: initializing netlink sockeodule: ideapad-laptop.ko: No such device
febootstrap: internal insmod virtio_mmio.ko
febootstrap: internal insmod virtio_balloon.ko
febootstrap: internal insmod virtio-rng.ko
febootstrap: internal insmod virtio_console.ko
febootstrap: internal insmod ext2.ko
febootstrap: picked /sys/block/vdb/dev as root device
febootstrap: creating /dev/root as block special 253:16
febootstrap: mounting new root on /root
febootstrap: chroot
/proc/uptime: No such file or directory
Starting /init script ...
rm: cannot remove `/proc': Is a directory
mkdir: cannot create directory `/proc': File exists
rm: cannot remove `/sys': Is a directory
mkdir: cannot create directory `/sys': File exists
[    1.527613] Switching to clocksource tsc
cannot open /dev/null
FATAL: Module pci:v00008086d00001237sv00001AF4sd00001100bc06sc00i00 not found.
FATAL: Module pci:v00008086d00007000sv00001AF4sd00001100bc06sc01i00 not found.
FATAL: Module platform:Fixed not found.
insmod /lib/modules/3.2.0-23-generic/kernel/drivers/i2c/busses/i2c-piix4.ko 
[    2.546072] piix4_smbus 0000:00:01.3: SMBus Host Controller at 0xb100, revision 0
WARNING: Not loading blacklisted module snd_pcsp
WARNING: Not loading blacklisted module pcspkr
FATAL: Module platform:pcspkr not found.
insmod /lib/modules/3.2.0-23-generic/kernel/drivers/input/serio/serio_raw.ko 
insmod /lib/modules/3.2.0-23-generic/kernel/drivers/input/mouse/psmouse.ko 
WARNING: Not loading blacklisted module evbug
insmod /lib/modules/3.2.0-23-generic/kernel/drivers/macintosh/mac_hid.ko 
[    3.231744] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input1
FATAL: Module dmi:bvnBochs:bvrBochs:bd01/01/2007:svnBochs:pnBochs:pvr:cvnBochs:ct1:cvr: not found.
SIOCSIFADDR: No such device
eth0: ERROR while getting interface flags: No such device
SIOCADDRT: No such process
  Reading all physical volumes.  This may take a while...
  No volume groups found
  No volume groups found

------------------------------------------------------------

Welcome to virt-rescue, the libguestfs rescue shell.

Note: The contents of / are the rescue appliance.
You have to mount the guest's partitions under /sysroot
before you can examine them.

bash: cannot set terminal process group (-1): Inappropriate ioctl for device
bash: no job control in this shell
groups: cannot find name for group ID 0
I have no name!@(none):/# fdisk -l /dev/vda

Disk /dev/vda: 104 MB, 104857600 bytes
189 heads, 49 sectors/track, 22 cylinders, total 204800 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0008b5ec

   Device Boot      Start         End      Blocks   Id  System
/dev/vda1             128      204672      102272+  83  Linux

I have no name!@(none):/# mount /dev/vda1 /sysroot 
I have no name!@(none):/# touch /sysroot/hello
I have no name!@(none):/# exit
exit

virt-rescue: Syncing the disk now before exiting ...

[   74.610677] Restarting system.
[   74.611101] machine restart
[ several GPFs during shutdown omitted ]

$ guestfish -a test1.img -m /dev/vda1 ll /
total 17
drwxr-xr-x  3    0    0  1024 Apr 16 17:00 .
drwxr-xr-x 21 1000 1000  4096 Apr 16 17:01 ..
-rw-r--r--  1    0    0     0 Apr 16 17:00 hello
drwx------  2    0    0 12288 Apr 16 16:59 lost+found

----------------------------------------------------------------------

I don't know why it cannot set the prompt.  I filed a BZ about it:

https://bugzilla.redhat.com/show_bug.cgi?id=812970

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
New in Fedora 11: Fedora Windows cross-compiler. Compile Windows
programs, test, and build Windows installers. Over 70 libraries supprt'd
http://fedoraproject.org/wiki/MinGW http://www.annexia.org/fedora_mingw


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