3:23 p.m.
Hello,
I send a dedicated subject message on this topic (second attempt because
the first one seems not to be present in ovirt archive..).
Also, the reply to my other related message seems not visible inside list
archive page for some reason.
It seems this nasty problem in nested virt using pc-i440fx-rhel7.X.0
machine type with X >= 3 impacts not only vSphere as main hypervisor for
nested KVM, but other hypervisors too (Hyper-V) and other machine types too
and could be due to a bug in KVM, so in the kernel, if I understood
correctly.
According to this link below
https://bugs.launchpad.net/qemu/+bug/1636217
and its comment by Roman Kagan in June this year:
"
This is a KVM bug. It has been fixed in mainstream Linux in
commit d391f1207067268261add0485f0f34503539c5b0
Author: Vitaly Kuznetsov <email address hidden>
Date: Thu Jan 25 16:37:07 2018 +0100
x86/kvm/vmx: do not use vm-exit instruction length for fast MMIO when
running nested
I was investigating an issue with seabios >= 1.10 which stopped working
for nested KVM on Hyper-V. The problem appears to be in
handle_ept_violation() function: when we do fast mmio we need to skip
the instruction so we do kvm_skip_emulated_instruction(). This, however,
depends on VM_EXIT_INSTRUCTION_LEN field being set correctly in VMCS.
However, this is not the case.
Intel's manual doesn't mandate VM_EXIT_INSTRUCTION_LEN to be set when
EPT MISCONFIG occurs. While on real hardware it was observed to be set,
some hypervisors follow the spec and don't set it; we end up advancing
IP with some random value.
I checked with Microsoft and they confirmed they don't fill
VM_EXIT_INSTRUCTION_LEN on EPT MISCONFIG.
Fix the issue by doing instruction skip through emulator when running
nested.
Fixes: 68c3b4d1676d870f0453c31d5a52e7e65c7448ae
Suggested-by: Radim Krčmář <email address hidden>
Suggested-by: Paolo Bonzini <email address hidden>
Signed-off-by: Vitaly Kuznetsov <email address hidden>
Acked-by: Michael S. Tsirkin <email address hidden>
Signed-off-by: Radim Krčmář <email address hidden>
Although the commit mentions Hyper-V as L0 hypervisor, the same problem
pertains to ESXi.
The commit is included in v4.16.
"
Is it possible to backport the fix to the kernel provided by plain
RHEL/CentOS hosts and/or RHVH/ovirt-ng nodes?
Thanks,
Gianluca
12:04 p.m.
On Tue, Oct 16, 2018 at 3:23 PM Gianluca Cecchi <gianluca.cecchi(a)gmail.com>
wrote:
Hello,
I send a dedicated subject message on this topic (second attempt because
the first one seems not to be present in ovirt archive..).
Also, the reply to my other related message seems not visible inside list
archive page for some reason.
It seems this nasty problem in nested virt using pc-i440fx-rhel7.X.0
machine type with X >= 3 impacts not only vSphere as main hypervisor for
nested KVM, but other hypervisors too (Hyper-V) and other machine types too
and could be due to a bug in KVM, so in the kernel, if I understood
correctly.
In the mean time I'm trying to use a workaround to setup a 3-hosts HCI
environment usign 3 VMs inside ESXi.
My approach:
- cp -p /usr/libexec/qemu-kvm /usr/libexec/qemu-kvm.orig
- rm /usr/libexec/qemu-kvm
- create a new /usr/libexec/qemu-kvm that is a wrapper:
#!/bin/bash
i=0
while [ $# -gt 0 ]; do
case "$1" in
-machine)
shift 2;;
*)
args[i]="$1"
(( i++ ))
shift ;;
esac
done
exec /usr/libexec/qemu-kvm.orig -machine pc-i440fx-rhel7.2.0 "${args[@]}"
- chmod 755 /usr/libexec/qemu-kvm
- chcon system_u:object_r:qemu_exec_t:s0 qemu-kvm
- chcon system_u:object_r:qemu_exec_t:s0 qemu-kvm.orig
And then I proceed with my setup from cockpit.
All goes well, with local hosted engine vm created from appliance,
engine-setup done, host addition done, storage domain for engine done, but
then it arrives a step where guestfish comes into place and I have the
error below.
Executing ps command before guestfish fails I see:
[root@ovirt01 ~]# ps -ef|grep guestf
root 28812 28807 5 16:55 pts/1 00:00:00 guestfish -a
/var/tmp/localvmxmSf0U/images/65f7f081-4d9e-43ae-926f-25807f075f1d/a0a00e73-d3ea-4b9b-bd26-06fe189931f2
--rw -i copy-in /var/tmp/localvmxmSf0U/ifcfg-eth0
/etc/sysconfig/network-scripts : selinux-relabel
/etc/selinux/targeted/contexts/files/file_contexts
/etc/sysconfig/network-scripts/ifcfg-eth0 force:true
root 28833 28812 33 16:55 pts/1 00:00:00
/usr/libexec/qemu-kvm.orig -machine pc-i440fx-rhel7.2.0 -global
virtio-blk-pci.scsi=off -nodefconfig -enable-fips -nodefaults -display none
-cpu host -m 500 -no-reboot -rtc driftfix=slew -no-hpet -global
kvm-pit.lost_tick_policy=discard -kernel
/var/tmp/.guestfs-0/appliance.d/kernel -initrd
/var/tmp/.guestfs-0/appliance.d/initrd -object
rng-random,filename=/dev/urandom,id=rng0 -device virtio-rng-pci,rng=rng0
-device virtio-scsi-pci,id=scsi -drive
file=/var/tmp/localvmxmSf0U/images/65f7f081-4d9e-43ae-926f-25807f075f1d/a0a00e73-d3ea-4b9b-bd26-06fe189931f2,cache=writeback,id=hd0,if=none
-device scsi-hd,drive=hd0 -drive
file=/var/tmp/.guestfs-0/appliance.d/root,snapshot=on,id=appliance,cache=unsafe,if=none,format=raw
-device scsi-hd,drive=appliance -device virtio-serial-pci -serial stdio
-chardev socket,path=/tmp/libguestfsAdBLA9/guestfsd.sock,id=channel0
-device virtserialport,chardev=channel0,name=org.libguestfs.channel.0
-append panic=1 console=ttyS0 edd=off udevtimeout=6000
udev.event-timeout=6000 no_timer_check printk.time=1 cgroup_disable=memory
usbcore.nousb cryptomgr.notests tsc=reliable 8250.nr_uarts=1 root=/dev/sdb
selinux=0 quiet TERM=xterm-256color
root 28834 28812 0 16:55 pts/1 00:00:00 guestfish -a
/var/tmp/localvmxmSf0U/images/65f7f081-4d9e-43ae-926f-25807f075f1d/a0a00e73-d3ea-4b9b-bd26-06fe189931f2
--rw -i copy-in /var/tmp/localvmxmSf0U/ifcfg-eth0
/etc/sysconfig/network-scripts : selinux-relabel
/etc/selinux/targeted/contexts/files/file_contexts
/etc/sysconfig/network-scripts/ifcfg-eth0 force:true
But then I get this in gui
libguestfs: error: appliance closed the connection unexpectedly.\nThis
usually means the libguestfs appliance crashed
Complete output
. . .
[ INFO ] TASK [Copy configuration files to the right location on host]
[ INFO ] TASK [Copy configuration archive to storage]
[ INFO ] changed: [localhost]
[ INFO ] TASK [Initialize metadata volume]
[ INFO ] changed: [localhost]
[ INFO ] TASK [include_tasks]
[ INFO ] ok: [localhost]
[ INFO ] TASK [Find the local appliance image]
[ INFO ] ok: [localhost]
[ INFO ] TASK [Set local_vm_disk_path]
[ INFO ] ok: [localhost]
[ INFO ] TASK [Generate DHCP network configuration for the engine VM]
[ INFO ] skipping: [localhost]
[ INFO ] TASK [Generate static network configuration for the engine VM]
[ INFO ] changed: [localhost]
[ INFO ] TASK [Inject network configuration with guestfish]
[ ERROR ] fatal: [localhost]: FAILED! => {"changed": true, "cmd":
["guestfish", "-a",
"/var/tmp/localvmxmSf0U/images/65f7f081-4d9e-43ae-926f-25807f075f1d/a0a00e73-d3ea-4b9b-bd26-06fe189931f2",
"--rw", "-i", "copy-in",
"/var/tmp/localvmxmSf0U/ifcfg-eth0",
"/etc/sysconfig/network-scripts", ":", "selinux-relabel",
"/etc/selinux/targeted/contexts/files/file_contexts",
"/etc/sysconfig/network-scripts/ifcfg-eth0", "force:true"],
"delta":
"0:00:01.821590", "end": "2018-10-16 16:55:12.044900",
"msg": "non-zero
return code", "rc": 1, "start": "2018-10-16
16:55:10.223310", "stderr":
"libguestfs: error: appliance closed the connection unexpectedly.\nThis
usually means the libguestfs appliance crashed.\nDo:\n export
LIBGUESTFS_DEBUG=1 LIBGUESTFS_TRACE=1\nand run the command again. For
further information, read:\n
http://libguestfs.org/guestfs-faq.1.html#debugging-libguestfs\nYou can also
run 'libguestfs-test-tool' and post the *complete* output\ninto a bug
report or message to the libguestfs mailing list.\nlibguestfs: error:
/usr/libexec/qemu-kvm killed by signal 6 (Aborted).\nTo see full error
messages you may need to enable debugging.\nDo:\n export LIBGUESTFS_DEBUG=1
LIBGUESTFS_TRACE=1\nand run the command again. For further information,
read:\n http://libguestfs.org/guestfs-faq.1.html#debugging-libguestfs\nYou
can also run 'libguestfs-test-tool' and post the *complete* output\ninto a
bug report or message to the libguestfs mailing list.\nlibguestfs: error:
guestfs_launch failed.\nThis usually means the libguestfs appliance failed
to start or crashed.\nDo:\n export LIBGUESTFS_DEBUG=1
LIBGUESTFS_TRACE=1\nand run the command again. For further information,
read:\n http://libguestfs.org/guestfs-faq.1.html#debugging-libguestfs\nYou
can also run 'libguestfs-test-tool' and post the *complete* output\ninto a
bug report or message to the libguestfs mailing list.", "stderr_lines":
["libguestfs: error: appliance closed the connection unexpectedly.", "This
usually means the libguestfs appliance crashed.", "Do:", " export
LIBGUESTFS_DEBUG=1 LIBGUESTFS_TRACE=1", "and run the command again. For
further information, read:", "
http://libguestfs.org/guestfs-faq.1.html#debugging-libguestfs";, "You can
also run 'libguestfs-test-tool' and post the *complete* output", "into
a
bug report or message to the libguestfs mailing list.", "libguestfs: error:
/usr/libexec/qemu-kvm killed by signal 6 (Aborted).", "To see full error
messages you may need to enable debugging.", "Do:", " export
LIBGUESTFS_DEBUG=1 LIBGUESTFS_TRACE=1", "and run the command again. For
further information, read:", "
http://libguestfs.org/guestfs-faq.1.html#debugging-libguestfs";, "You can
also run 'libguestfs-test-tool' and post the *complete* output", "into
a
bug report or message to the libguestfs mailing list.", "libguestfs: error:
guestfs_launch failed.", "This usually means the libguestfs appliance
failed to start or crashed.", "Do:", " export LIBGUESTFS_DEBUG=1
LIBGUESTFS_TRACE=1", "and run the command again. For further information,
read:", " http://libguestfs.org/guestfs-faq.1.html#debugging-libguestfs";,
"You can also run 'libguestfs-test-tool' and post the *complete*
output",
"into a bug report or message to the libguestfs mailing list."],
"stdout":
"", "stdout_lines": []}
Any hint on how to debug guestfish problem, so where to put th suggested
debug env variables for cockpit to adopt them, or understand if it is not
related with the problem to be nested inside ESXi?
The nodes are ovirt-ng-nodes based on ovirt-node-ng-4.2.6.1-0.20180913.0
Thanks,
Gianluca
1:09 a.m.
On Wed, Oct 17, 2018 at 12:04 PM Gianluca Cecchi <gianluca.cecchi(a)gmail.com>
wrote:
On Tue, Oct 16, 2018 at 3:23 PM Gianluca Cecchi
<gianluca.cecchi(a)gmail.com>
wrote:
> Hello,
> I send a dedicated subject message on this topic (second attempt because
> the first one seems not to be present in ovirt archive..).
> Also, the reply to my other related message seems not visible inside list
> archive page for some reason.
>
> It seems this nasty problem in nested virt using pc-i440fx-rhel7.X.0
> machine type with X >= 3 impacts not only vSphere as main hypervisor for
> nested KVM, but other hypervisors too (Hyper-V) and other machine types too
> and could be due to a bug in KVM, so in the kernel, if I understood
> correctly.
>
>
In the mean time I'm trying to use a workaround to setup a 3-hosts HCI
environment usign 3 VMs inside ESXi.
[snip]
But then I get this in gui
libguestfs: error: appliance closed the connection unexpectedly.\nThis
usually means the libguestfs appliance crashed
Complete output
. . .
[ INFO ] TASK [Copy configuration files to the right location on host]
[ INFO ] TASK [Copy configuration archive to storage]
[ INFO ] changed: [localhost]
[ INFO ] TASK [Initialize metadata volume]
[ INFO ] changed: [localhost]
[ INFO ] TASK [include_tasks]
[ INFO ] ok: [localhost]
[ INFO ] TASK [Find the local appliance image]
[ INFO ] ok: [localhost]
[ INFO ] TASK [Set local_vm_disk_path]
[ INFO ] ok: [localhost]
[ INFO ] TASK [Generate DHCP network configuration for the engine VM]
[ INFO ] skipping: [localhost]
[ INFO ] TASK [Generate static network configuration for the engine VM]
[ INFO ] changed: [localhost]
[ INFO ] TASK [Inject network configuration with guestfish]
[ ERROR ] fatal: [localhost]: FAILED! => {"changed": true, "cmd":
["guestfish", "-a",
"/var/tmp/localvmxmSf0U/images/65f7f081-4d9e-43ae-926f-25807f075f1d/a0a00e73-d3ea-4b9b-bd26-06fe189931f2",
"--rw", "-i", "copy-in",
"/var/tmp/localvmxmSf0U/ifcfg-eth0",
"/etc/sysconfig/network-scripts", ":", "selinux-relabel",
"/etc/selinux/targeted/contexts/files/file_contexts",
"/etc/sysconfig/network-scripts/ifcfg-eth0", "force:true"],
"delta":
"0:00:01.821590", "end": "2018-10-16 16:55:12.044900",
"msg": "non-zero
return code", "rc": 1, "start": "2018-10-16
16:55:10.223310", "stderr":
"libguestfs: error: appliance closed the connection unexpectedly.\nThis
usually means the libguestfs appliance crashed.\
I was able to run guestfish with "-v" option, using a wrapper also for
guestfish itself:
"
#!/bin/bash
exec /usr/bin/guestfish.orig -v "$@"
"
The reason for the failure seems this one:
"
qemu-kvm.orig: error: failed to set MSR 0x38d to 0x0\nqemu-kvm.orig:
/builddir/build/BUILD/qemu-2.10.0/target/i386/kvm.c:1809: kvm_put_msrs:
Assertion `ret == cpu->kvm_msr_buf->nmsrs' failed.\nlibguestfs: error:
appliance closed the connection unexpectedly, see earlier error
messages\nlibguestfs: child_cleanup: 0x5614c38e4580: child process
died\nlibguestfs: sending SIGTERM to process 29457\nlibguestfs: error:
/usr/libexec/qemu-kvm killed by signal 6 (Aborted), see debug messages above
"
Any hint?
Based on full output (see below) inside the GUI, it seems that the
step "libguestfs:
finished testing qemu features" has a result of kind
-machine accel=kvm:tcg \\\n -cpu host \\\n -m 500 \\\n -no-reboot \\\n -rtc
driftfix=slew \\\n -no-hpet \\\n -global kvm-pit.lost_tick_policy=discard
and so possibly makes useless my wrapper for guestfish???
here full output into the GUI:
[ INFO ] TASK [Inject network configuration with guestfish]
[ ERROR ] fatal: [localhost]: FAILED! => {"changed": true, "cmd":
["guestfish", "-a",
"/var/tmp/localvmBnuX85/images/65f7f081-4d9e-43ae-926f-25807f075f1d/a0a00e73-d3ea-4b9b-bd26-06fe189931f2",
"--rw", "-i", "copy-in",
"/var/tmp/localvmBnuX85/ifcfg-eth0",
"/etc/sysconfig/network-scripts", ":", "selinux-relabel",
"/etc/selinux/targeted/contexts/files/file_contexts",
"/etc/sysconfig/network-scripts/ifcfg-eth0", "force:true"],
"delta":
"0:00:01.248846", "end": "2018-10-18 00:43:14.708976",
"msg": "non-zero
return code", "rc": 1, "start": "2018-10-18
00:43:13.460130", "stderr":
"libguestfs: launch: program=guestfish.orig\nlibguestfs: launch:
version=1.36.10rhel=7,release=6.el7_5.2,libvirt\nlibguestfs: launch:
backend registered: unix\nlibguestfs: launch: backend registered:
uml\nlibguestfs: launch: backend registered: libvirt\nlibguestfs: launch:
backend registered: direct\nlibguestfs: launch: backend=direct\nlibguestfs:
launch: tmpdir=/tmp/libguestfsdJP9Xf\nlibguestfs: launch:
umask=0022\nlibguestfs: launch: euid=0\nlibguestfs: begin building supermin
appliance\nlibguestfs: run supermin\nlibguestfs: command: run:
/usr/bin/supermin5\nlibguestfs: command: run: \\ --build\nlibguestfs:
command: run: \\ --verbose\nlibguestfs: command: run: \\
--if-newer\nlibguestfs: command: run: \\ --lock
/var/tmp/.guestfs-0/lock\nlibguestfs: command: run: \\
--copy-kernel\nlibguestfs: command: run: \\ -f ext2\nlibguestfs: command:
run: \\ --host-cpu x86_64\nlibguestfs: command: run: \\
/usr/lib64/guestfs/supermin.d\nlibguestfs: command: run: \\ -o
/var/tmp/.guestfs-0/appliance.d\nsupermin: version: 5.1.19\nsupermin: rpm:
detected RPM version 4.11\nsupermin: package handler: fedora/rpm\nsupermin:
acquiring lock on /var/tmp/.guestfs-0/lock\nsupermin: if-newer: output does
not need rebuilding\nlibguestfs: finished building supermin
appliance\nlibguestfs: begin testing qemu features\nlibguestfs: checking
for previously cached test results of /usr/libexec/qemu-kvm, in
/var/tmp/.guestfs-0\nlibguestfs: loading previously cached test
results\nlibguestfs: qemu version: 2.10\nlibguestfs: qemu mandatory
locking: yes\nlibguestfs: finished testing qemu features\n[00074ms]
/usr/libexec/qemu-kvm \\\n -global virtio-blk-pci.scsi=off \\\n
-nodefconfig \\\n -enable-fips \\\n -nodefaults \\\n -display none \\\n
-machine accel=kvm:tcg \\\n -cpu host \\\n -m 500 \\\n -no-reboot \\\n -rtc
driftfix=slew \\\n -no-hpet \\\n -global kvm-pit.lost_tick_policy=discard
\\\n -kernel /var/tmp/.guestfs-0/appliance.d/kernel \\\n -initrd
/var/tmp/.guestfs-0/appliance.d/initrd \\\n -object
rng-random,filename=/dev/urandom,id=rng0 \\\n -device
virtio-rng-pci,rng=rng0 \\\n -device virtio-scsi-pci,id=scsi \\\n -drive
file=/var/tmp/localvmBnuX85/images/65f7f081-4d9e-43ae-926f-25807f075f1d/a0a00e73-d3ea-4b9b-bd26-06fe189931f2,cache=writeback,id=hd0,if=none
\\\n -device scsi-hd,drive=hd0 \\\n -drive
file=/var/tmp/.guestfs-0/appliance.d/root,snapshot=on,id=appliance,cache=unsafe,if=none,format=raw
\\\n -device scsi-hd,drive=appliance \\\n -device virtio-serial-pci \\\n
-serial stdio \\\n -device sga \\\n -chardev
socket,path=/tmp/libguestfsbhn4kG/guestfsd.sock,id=channel0 \\\n -device
virtserialport,chardev=channel0,name=org.libguestfs.channel.0 \\\n -append
'panic=1 console=ttyS0 edd=off udevtimeout=6000 udev.event-timeout=6000
no_timer_check printk.time=1 cgroup_disable=memory usbcore.nousb
cryptomgr.notests tsc=reliable 8250.nr_uarts=1 root=/dev/sdb selinux=0
guestfs_verbose=1 TERM=xterm-256color'\nqemu-kvm.orig: error: failed to set
MSR 0x38d to 0x0\nqemu-kvm.orig:
/builddir/build/BUILD/qemu-2.10.0/target/i386/kvm.c:1809: kvm_put_msrs:
Assertion `ret == cpu->kvm_msr_buf->nmsrs' failed.\nlibguestfs: error:
appliance closed the connection unexpectedly, see earlier error
messages\nlibguestfs: child_cleanup: 0x5614c38e4580: child process
died\nlibguestfs: sending SIGTERM to process 29457\nlibguestfs: error:
/usr/libexec/qemu-kvm killed by signal 6 (Aborted), see debug messages
above\nlibguestfs: error: guestfs_launch failed, see earlier error
messages\nlibguestfs: closing guestfs handle 0x5614c38e4580 (state
0)\nlibguestfs: command: run: rm\nlibguestfs: command: run: \\ -rf
/tmp/libguestfsdJP9Xf\nlibguestfs: command: run: rm\nlibguestfs: command:
run: \\ -rf /tmp/libguestfsbhn4kG", "stderr_lines": ["libguestfs:
launch:
program=guestfish.orig", "libguestfs: launch:
version=1.36.10rhel=7,release=6.el7_5.2,libvirt", "libguestfs: launch:
backend registered: unix", "libguestfs: launch: backend registered: uml",
"libguestfs: launch: backend registered: libvirt", "libguestfs: launch:
backend registered: direct", "libguestfs: launch: backend=direct",
"libguestfs: launch: tmpdir=/tmp/libguestfsdJP9Xf", "libguestfs: launch:
umask=0022", "libguestfs: launch: euid=0", "libguestfs: begin
building
supermin appliance", "libguestfs: run supermin", "libguestfs: command:
run:
/usr/bin/supermin5", "libguestfs: command: run: \\ --build",
"libguestfs:
command: run: \\ --verbose", "libguestfs: command: run: \\ --if-newer",
"libguestfs: command: run: \\ --lock /var/tmp/.guestfs-0/lock",
"libguestfs: command: run: \\ --copy-kernel", "libguestfs: command: run:
\\
-f ext2", "libguestfs: command: run: \\ --host-cpu x86_64",
"libguestfs:
command: run: \\ /usr/lib64/guestfs/supermin.d", "libguestfs: command: run:
\\ -o /var/tmp/.guestfs-0/appliance.d", "supermin: version: 5.1.19",
"supermin: rpm: detected RPM version 4.11", "supermin: package handler:
fedora/rpm", "supermin: acquiring lock on /var/tmp/.guestfs-0/lock",
"supermin: if-newer: output does not need rebuilding", "libguestfs:
finished building supermin appliance", "libguestfs: begin testing qemu
features", "libguestfs: checking for previously cached test results of
/usr/libexec/qemu-kvm, in /var/tmp/.guestfs-0", "libguestfs: loading
previously cached test results", "libguestfs: qemu version: 2.10",
"libguestfs: qemu mandatory locking: yes", "libguestfs: finished testing
qemu features", "[00074ms] /usr/libexec/qemu-kvm \\", " -global
virtio-blk-pci.scsi=off \\", " -nodefconfig \\", " -enable-fips
\\", "
-nodefaults \\", " -display none \\", " -machine accel=kvm:tcg
\\", " -cpu
host \\", " -m 500 \\", " -no-reboot \\", " -rtc
driftfix=slew \\", "
-no-hpet \\", " -global kvm-pit.lost_tick_policy=discard \\", "
-kernel
/var/tmp/.guestfs-0/appliance.d/kernel \\", " -initrd
/var/tmp/.guestfs-0/appliance.d/initrd \\", " -object
rng-random,filename=/dev/urandom,id=rng0 \\", " -device
virtio-rng-pci,rng=rng0 \\", " -device virtio-scsi-pci,id=scsi \\", "
-drive
file=/var/tmp/localvmBnuX85/images/65f7f081-4d9e-43ae-926f-25807f075f1d/a0a00e73-d3ea-4b9b-bd26-06fe189931f2,cache=writeback,id=hd0,if=none
\\", " -device scsi-hd,drive=hd0 \\", " -drive
file=/var/tmp/.guestfs-0/appliance.d/root,snapshot=on,id=appliance,cache=unsafe,if=none,format=raw
\\", " -device scsi-hd,drive=appliance \\", " -device
virtio-serial-pci
\\", " -serial stdio \\", " -device sga \\", " -chardev
socket,path=/tmp/libguestfsbhn4kG/guestfsd.sock,id=channel0 \\", " -device
virtserialport,chardev=channel0,name=org.libguestfs.channel.0 \\", "
-append 'panic=1 console=ttyS0 edd=off udevtimeout=6000
udev.event-timeout=6000 no_timer_check printk.time=1 cgroup_disable=memory
usbcore.nousb cryptomgr.notests tsc=reliable 8250.nr_uarts=1 root=/dev/sdb
selinux=0 guestfs_verbose=1 TERM=xterm-256color'", "qemu-kvm.orig: error:
failed to set MSR 0x38d to 0x0", "qemu-kvm.orig:
/builddir/build/BUILD/qemu-2.10.0/target/i386/kvm.c:1809: kvm_put_msrs:
Assertion `ret == cpu->kvm_msr_buf->nmsrs' failed.", "libguestfs:
error:
appliance closed the connection unexpectedly, see earlier error messages",
"libguestfs: child_cleanup: 0x5614c38e4580: child process died",
"libguestfs: sending SIGTERM to process 29457", "libguestfs: error:
/usr/libexec/qemu-kvm killed by signal 6 (Aborted), see debug messages
above", "libguestfs: error: guestfs_launch failed, see earlier error
messages", "libguestfs: closing guestfs handle 0x5614c38e4580 (state 0)",
"libguestfs: command: run: rm", "libguestfs: command: run: \\ -rf
/tmp/libguestfsdJP9Xf", "libguestfs: command: run: rm", "libguestfs:
command: run: \\ -rf /tmp/libguestfsbhn4kG"], "stdout": "",
"stdout_lines":
[]}
Thanks for your time,
Gianluca
2340
days inactive
2341
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Gianluca Cecchi