Libguestfs - Dec 2011 - libguestfs-test-tool say "child process died" on ubuntu 11.10 x64

Hi all,

As title, thanks a lot. My test host configurations:

Linux desktop 3.0.0-14-generic #23-Ubuntu SMP Mon Nov 21 20:28:43 UTC
2011 x86_64 x86_64 x86_64 GNU/Linux

The test tool output as following:

xxx at desktop:~$ sudo libguestfs-test-tool
[sudo] password for xxx:
===== Test starts here ====LIBGUESTFS_DEBUG=1
TMPDIR=(not set)
libguestfs: new guestfs handle 0x16cd0f0
library version: 1.15.11
guestfs_get_append: (null)
guestfs_get_attach_method: appliance
guestfs_get_autosync: 1
guestfs_get_direct: 0
guestfs_get_memsize: 500
guestfs_get_network: 0
guestfs_get_path: /usr/lib/guestfs
guestfs_get_pgroup: 0
guestfs_get_qemu: /usr/bin/kvm
guestfs_get_recovery_proc: 1
guestfs_get_selinux: 0
guestfs_get_smp: 1
guestfs_get_trace: 0
guestfs_get_verbose: 1
host_cpu: x86_64
Launching appliance, timeout set to 600 seconds.
libguestfs: [00000ms] febootstrap-supermin-helper --verbose -f
checksum '/usr/lib/guestfs/supermin.d' x86_64
supermin helper [00000ms] whitelist = (not specified), host_cpu x86_64, kernel =
(null), initrd = (null), appliance = (null)
supermin helper [00000ms] inputs[0] = /usr/lib/guestfs/supermin.d
checking modpath /lib/modules/3.0.0-13-generic is a directory
picked vmlinuz-3.0.0-13-generic because modpath
/lib/modules/3.0.0-13-generic exists
checking modpath /lib/modules/3.0.0-14-generic is a directory
picked vmlinuz-3.0.0-14-generic because modpath
/lib/modules/3.0.0-14-generic exists
supermin helper [00000ms] finished creating kernel
supermin helper [00000ms] visiting /usr/lib/guestfs/supermin.d
supermin helper [00000ms] visiting /usr/lib/guestfs/supermin.d/base.img
supermin helper [00001ms] visiting /usr/lib/guestfs/supermin.d/daemon.img
supermin helper [00001ms] visiting /usr/lib/guestfs/supermin.d/hostfiles
supermin helper [00031ms] visiting /usr/lib/guestfs/supermin.d/init.img
supermin helper [00196ms] finished creating appliance
libguestfs: [00201ms] begin building supermin appliance
libguestfs: [00203ms] run febootstrap-supermin-helper
libguestfs: [00205ms] febootstrap-supermin-helper --verbose -f ext2
/usr/lib/guestfs/supermin.d x86_64 /var/tmp/guestfs.jgetV0/kernel
/var/tmp/guestfs.jgetV0/initrd /var/tmp/guestfs.jgetV0/root
supermin helper [00000ms] whitelist = (not specified), host_cpu x86_64, kernel =
/var/tmp/guestfs.jgetV0/kernel, initrd /var/tmp/guestfs.jgetV0/initrd, appliance
/var/tmp/guestfs.jgetV0/root
supermin helper [00000ms] inputs[0] = /usr/lib/guestfs/supermin.d
checking modpath /lib/modules/3.0.0-13-generic is a directory
picked vmlinuz-3.0.0-13-generic because modpath
/lib/modules/3.0.0-13-generic exists
checking modpath /lib/modules/3.0.0-14-generic is a directory
picked vmlinuz-3.0.0-14-generic because modpath
/lib/modules/3.0.0-14-generic exists
supermin helper [00000ms] finished creating kernel
supermin helper [01816ms] finished mke2fs
supermin helper [01816ms] visiting /usr/lib/guestfs/supermin.d
supermin helper [01817ms] visiting /usr/lib/guestfs/supermin.d/base.img
supermin helper [01923ms] visiting /usr/lib/guestfs/supermin.d/daemon.img
supermin helper [01932ms] visiting /usr/lib/guestfs/supermin.d/hostfiles
supermin helper [07257ms] visiting /usr/lib/guestfs/supermin.d/init.img
supermin helper [17331ms] finished creating appliance
libguestfs: [17547ms] finished building supermin appliance
libguestfs: [17581ms] begin testing qemu features
libguestfs: [17611ms] finished testing qemu features
libguestfs: accept_from_daemon: 0x16cd0f0 g->state = 1
[17614ms] /usr/bin/kvm \
    -drive
file=/tmp/libguestfs-test-tool-sda-6OA3hT,cache=off,format=raw,if=virtio
\
    -nodefconfig \
    -machine accel=kvm:tcg \
    -nodefaults \
    -nographic \
    -m 500 \
    -no-reboot \
    -no-hpet \
    -device virtio-serial \
    -serial stdio \
    -chardev socket,path=/tmp/libguestfsJF88Lr/guestfsd.sock,id=channel0 \
    -device virtserialport,chardev=channel0,name=org.libguestfs.channel.0 \
    -kernel /var/tmp/.guestfs-0/kernel.17521 \
    -initrd /var/tmp/.guestfs-0/initrd.17521 \
    -append 'panic=1 console=ttyS0 udevtimeout=300 no_timer_check
acpi=off printk.time=1 cgroup_disable=memory selinux=0
guestfs_verbose=1 TERM=xterm ' \
    -drive
file=/var/tmp/.guestfs-0/root.17521,snapshot=on,if=virtio,cache=unsafeSupported
machines are:
pc         Standard PC (alias of pc-0.14)
pc-0.14    Standard PC (default)
pc-0.13    Standard PC
pc-0.12    Standard PC
pc-0.11    Standard PC, qemu 0.11
pc-0.10    Standard PC, qemu 0.10
isapc      ISA-only PC
libguestfs: child_cleanup: 0x16cd0f0: child process died
libguestfs: error: child process died unexpectedly
libguestfs-test-tool: failed to launch appliance
libguestfs: closing guestfs handle 0x16cd0f0 (state 0)

Zhi Yan, Liu

On 12/30/2011 09:57 AM, lzy.dev at gmail.com wrote:
> Hi all,
> 
> As title, thanks a lot. My test host configurations:
> 
> Linux desktop 3.0.0-14-generic #23-Ubuntu SMP Mon Nov 21 20:28:43 UTC
> 2011 x86_64 x86_64 x86_64 GNU/Linux
> 
> The test tool output as following:
> 
> xxx at desktop:~$ sudo libguestfs-test-tool
> [sudo] password for xxx:
> ===== Test starts here ====> LIBGUESTFS_DEBUG=1
> TMPDIR=(not set)
> libguestfs: new guestfs handle 0x16cd0f0
> library version: 1.15.11
> guestfs_get_append: (null)
> guestfs_get_attach_method: appliance
> guestfs_get_autosync: 1
> guestfs_get_direct: 0
> guestfs_get_memsize: 500
> guestfs_get_network: 0
> guestfs_get_path: /usr/lib/guestfs
> guestfs_get_pgroup: 0
> guestfs_get_qemu: /usr/bin/kvm
> guestfs_get_recovery_proc: 1
> guestfs_get_selinux: 0
> guestfs_get_smp: 1
> guestfs_get_trace: 0
> guestfs_get_verbose: 1
> host_cpu: x86_64
> Launching appliance, timeout set to 600 seconds.
> libguestfs: [00000ms] febootstrap-supermin-helper --verbose -f
> checksum '/usr/lib/guestfs/supermin.d' x86_64
> supermin helper [00000ms] whitelist = (not specified), host_cpu >
x86_64, kernel = (null), initrd = (null), appliance = (null)
> supermin helper [00000ms] inputs[0] = /usr/lib/guestfs/supermin.d
> checking modpath /lib/modules/3.0.0-13-generic is a directory
> picked vmlinuz-3.0.0-13-generic because modpath
> /lib/modules/3.0.0-13-generic exists
> checking modpath /lib/modules/3.0.0-14-generic is a directory
> picked vmlinuz-3.0.0-14-generic because modpath
> /lib/modules/3.0.0-14-generic exists
> supermin helper [00000ms] finished creating kernel
> supermin helper [00000ms] visiting /usr/lib/guestfs/supermin.d
> supermin helper [00000ms] visiting /usr/lib/guestfs/supermin.d/base.img
> supermin helper [00001ms] visiting /usr/lib/guestfs/supermin.d/daemon.img
> supermin helper [00001ms] visiting /usr/lib/guestfs/supermin.d/hostfiles
> supermin helper [00031ms] visiting /usr/lib/guestfs/supermin.d/init.img

Here missed "add kernel modules".

Did you test 1.15.11-1 here
http://libguestfs.org/download/binaries/ubuntu1110-packages/ ?
I just tested on ubuntu-11.10 x86_64, but didn't see this error, can you
test with the
1.15.11-1 package again and send the result here?

Thanks
-Wanlong Gao

On 12/30/2011 03:25 PM, lzy.dev at gmail.com wrote:
> On Fri, Dec 30, 2011 at 2:58 PM, Wanlong Gao <wanlong.gao at
gmail.com> wrote:
>> On 12/30/2011 09:57 AM, lzy.dev at gmail.com wrote:
>>
>>> Hi all,
>>>
>>> As title, thanks a lot. My test host configurations:
>>>
>>> Linux desktop 3.0.0-14-generic #23-Ubuntu SMP Mon Nov 21 20:28:43
UTC
>>> 2011 x86_64 x86_64 x86_64 GNU/Linux
>>>
>>> The test tool output as following:
>>>
>>> xxx at desktop:~$ sudo libguestfs-test-tool
>>> [sudo] password for xxx:
>>> ===== Test starts here ====>>> LIBGUESTFS_DEBUG=1
>>> TMPDIR=(not set)
>>> libguestfs: new guestfs handle 0x16cd0f0
>>> library version: 1.15.11
>>> guestfs_get_append: (null)
>>> guestfs_get_attach_method: appliance
>>> guestfs_get_autosync: 1
>>> guestfs_get_direct: 0
>>> guestfs_get_memsize: 500
>>> guestfs_get_network: 0
>>> guestfs_get_path: /usr/lib/guestfs
>>> guestfs_get_pgroup: 0
>>> guestfs_get_qemu: /usr/bin/kvm
>>> guestfs_get_recovery_proc: 1
>>> guestfs_get_selinux: 0
>>> guestfs_get_smp: 1
>>> guestfs_get_trace: 0
>>> guestfs_get_verbose: 1
>>> host_cpu: x86_64
>>> Launching appliance, timeout set to 600 seconds.
>>> libguestfs: [00000ms] febootstrap-supermin-helper --verbose -f
>>> checksum '/usr/lib/guestfs/supermin.d' x86_64
>>> supermin helper [00000ms] whitelist = (not specified), host_cpu
>>> x86_64, kernel = (null), initrd = (null), appliance = (null)
>>> supermin helper [00000ms] inputs[0] = /usr/lib/guestfs/supermin.d
>>> checking modpath /lib/modules/3.0.0-13-generic is a directory
>>> picked vmlinuz-3.0.0-13-generic because modpath
>>> /lib/modules/3.0.0-13-generic exists
>>> checking modpath /lib/modules/3.0.0-14-generic is a directory
>>> picked vmlinuz-3.0.0-14-generic because modpath
>>> /lib/modules/3.0.0-14-generic exists
>>> supermin helper [00000ms] finished creating kernel
>>> supermin helper [00000ms] visiting /usr/lib/guestfs/supermin.d
>>> supermin helper [00000ms] visiting
/usr/lib/guestfs/supermin.d/base.img
>>> supermin helper [00001ms] visiting
/usr/lib/guestfs/supermin.d/daemon.img
>>> supermin helper [00001ms] visiting
/usr/lib/guestfs/supermin.d/hostfiles
>>> supermin helper [00031ms] visiting
/usr/lib/guestfs/supermin.d/init.img
>>
>>
>> Here missed "add kernel modules".
>>
>> Did you test 1.15.11-1 here
http://libguestfs.org/download/binaries/ubuntu1110-packages/ ?
>> I just tested on ubuntu-11.10 x86_64, but didn't see this error,
can you test with the
>> 1.15.11-1 package again and send the result here?
>>
>> Thanks
>> -Wanlong Gao
> 
> Hi,
> 
> The version of libguestfs I have tested is 1.15.11-1. And there deb
> packages are all download from that official site.
> Thanks.

You can see this error every time?
> 
> Zhi Yan, Liu

On Fri, Dec 30, 2011 at 09:57:36AM +0800, lzy.dev at gmail.com
wrote:
> library version: 1.15.11
[...]
> [17614ms] /usr/bin/kvm \
>     -drive
file=/tmp/libguestfs-test-tool-sda-6OA3hT,cache=off,format=raw,if=virtio
> \
>     -nodefconfig \
>     -machine accel=kvm:tcg \
>     -nodefaults \
>     -nographic \
>     -m 500 \
>     -no-reboot \
>     -no-hpet \
>     -device virtio-serial \
>     -serial stdio \
>     -chardev socket,path=/tmp/libguestfsJF88Lr/guestfsd.sock,id=channel0 \
>     -device virtserialport,chardev=channel0,name=org.libguestfs.channel.0 \
>     -kernel /var/tmp/.guestfs-0/kernel.17521 \
>     -initrd /var/tmp/.guestfs-0/initrd.17521 \
>     -append 'panic=1 console=ttyS0 udevtimeout=300 no_timer_check
> acpi=off printk.time=1 cgroup_disable=memory selinux=0
> guestfs_verbose=1 TERM=xterm ' \
>     -drive
file=/var/tmp/.guestfs-0/root.17521,snapshot=on,if=virtio,cache=unsafeSupported
> machines are:
> pc         Standard PC (alias of pc-0.14)
> pc-0.14    Standard PC (default)
> pc-0.13    Standard PC
> pc-0.12    Standard PC
> pc-0.11    Standard PC, qemu 0.11
> pc-0.10    Standard PC, qemu 0.10
> isapc      ISA-only PC
This is a bug in qemu 0.15, fixed in qemu 1.0 (although 1.0 introduced
another bug which prevents libguestfs from working out of the box
there too).

If you recompile libguestfs from source then it will detect this qemu
problem at ./configure time and add some code to work around it.
However the binaries on the website weren't compiled this way.

In Fedora we patch around many qemu bugs, so it's worth keeping an eye
on our qemu packages:

  http://pkgs.fedoraproject.org/gitweb/?p=qemu.git

Here is the patch you need to qemu 0.15 which fixes the above bug:

 
http://pkgs.fedoraproject.org/gitweb/?p=qemu.git;a=blob;f=qemu-Allow-to-leave-type-on-default-in-machine.patch;h=e4a8e6ddc6ce825517836c8d595c06584c3126f0;hb=refs/heads/f16

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
virt-top is 'top' for virtual machines.  Tiny program with many
powerful monitoring features, net stats, disk stats, logging, etc.
http://et.redhat.com/~rjones/virt-top