apport information
** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1742789/+attachment/5035370/+files/WifiSyslog.txt
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1742789
Title:
Xen PV Guest won't boot latest kernel- OSError: [Errno 28] No space
left on device
Status in linux package in Ubuntu:
Confirmed
Bug description:
# lsb_release -rd
Description: Ubuntu 16.04.3 LTS
Release: 16.04
This problem is related to the latest kernel for meltdown spectre patches for
xen pv guest and pygrub.
This is the kernel that was attempting to be upgraded.
linux-image-4.4.0-109-generic 4.4.0-109.132
I tried to report this issue with the following command but it failed:
````
ubuntu-bug linux
*** Collecting problem information
The collected information can be sent to the developers to improve the
application. This might take a few minutes.
...............
*** Problem in linux-image-4.4.0-15-generic
The problem cannot be reported:
This is not an official Ubuntu package. Please remove any third party
package and try again.
Press any key to continue...
No pending crash reports. Try --help for more information.
````
I have an Ubuntu 14.04 running Xen and a VM running Ubuntu 16.04 LTS
that I'm having issues with it booting after upgrading the kernel for
meltdown and spectre vulnerability.
````
sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-upgrade
````
Ubuntu 14.04 xen host reboot failure log:
````
$ tailf /var/log/xen/servername.log
Domain 24 needs to be cleaned up: destroying the domain
Done. Rebooting now
libxl: error: libxl_bootloader.c:628:bootloader_finished: bootloader failed -
consult logfile /var/log/xen/bootloader.27.log
libxl: error: libxl_exec.c:118:libxl_report_child_exitstatus: bootloader [-1]
exited with error status 1
libxl: error: libxl_create.c:1024:domcreate_rebuild_done: cannot (re-)build
domain: -3
````
````
cat /var/log/xen/bootloader.27.log
Using <class 'grub.GrubConf.Grub2ConfigFile'> to parse /grub/grub.cfg
pyGRUB version 0.6
┌────────────────────────────────────────────────────────────────────────┐
│ Ubuntu │
│ Ubuntu, with Linux 4.4.0-109-generic │
│ Ubuntu, with Linux 4.4.0-109-generic (recovery mode) │
│ Ubuntu, with Linux 4.4.0-108-generic │
│ Ubuntu, with Linux 4.4.0-108-generic (recovery mode) │
│ Ubuntu, with Linux 4.4.0-104-generic │
│ Ubuntu, with Linux 4.4.0-104-generic (recovery mode) │
│ Ubuntu, with Linux 4.4.0-15-generic │
└────────────────────────────────────────────────────────────────────────┘
Use the ^ and ┴ keys to select which entry is highlighted.
Press enter to boot the selected OS, 'e' to edit the
commands before booting, 'a' to modify the kernel arguments
before booting, or 'c' for a command line.
Traceback (most recent call last):
File "/usr/lib/xen-4.4/bin/pygrub", line 905, in <module>
os.write(fd, ostring)
OSError: [Errno 28] No space left on device
````
I was able to get the vm to boot only by rapidly attempt to access the
menu options and boot the old kernel (4.4.0-15-generic). Disk space
and inodes seems fine on the host Ubuntu 14.04LTS and Ubuntu 16.04LTS
Guest.
Ubuntu 14.04 Host:
````
root@host:/var/log/xen# df -hFilesystem Size Used Avail Use% Mounted on
udev 197M 12K 197M 1% /dev
tmpfs 42M 1.1M 41M 3% /run
/dev/dm-0 104G 49G 50G 50% /
none 4.0K 0 4.0K 0% /sys/fs/cgroup
none 5.0M 0 5.0M 0% /run/lock
none 208M 0 208M 0% /run/shm
none 100M 0 100M 0% /run/user
/dev/sda1 236M 40M 184M 18% /boot
root@host:/var/log/xen# df -hi
Filesystem Inodes IUsed IFree IUse% Mounted on
udev 50K 721 49K 2% /dev
tmpfs 52K 849 52K 2% /run
/dev/dm-0 6.6M 86K 6.5M 2% /
none 52K 2 52K 1% /sys/fs/cgroup
none 52K 5 52K 1% /run/lock
none 52K 1 52K 1% /run/shm
none 52K 2 52K 1% /run/user
/dev/sda1 61K 298 61K 1% /boot
root@host:/var/log/xen#
````
Ubuntu 16.04 PV Guest:
````
root@guest:~# df -hFilesystem Size Used Avail
Use% Mounted on
udev 950M 0 950M 0% /dev
tmpfs 200M 3.1M 197M 2% /run
/dev/mapper/guest--vg-root 47G 4.3G 40G 10% /
tmpfs 997M 0 997M 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 997M 0 997M 0% /sys/fs/cgroup
/dev/xvda1 472M 192M 256M 43% /boot
tmpfs 200M 0 200M 0% /run/user/1000
root@www2:~# df -hi
Filesystem Inodes IUsed IFree IUse% Mounted on
udev 238K 406 237K 1% /dev
tmpfs 250K 491 249K 1% /run
/dev/mapper/guest--vg-root 3.0M 177K 2.8M 6% /
tmpfs 250K 1 250K 1% /dev/shm
tmpfs 250K 7 250K 1% /run/lock
tmpfs 250K 16 250K 1% /sys/fs/cgroup
/dev/xvda1 122K 315 122K 1% /boot
tmpfs 250K 4 250K 1% /run/user/1000
root@guest:~#
````
Here is the guest Ubuntu 16.04 OS kernels:
````
root@guest:~# dpkg -l | grep linux-image-
ii linux-image-4.4.0-104-generic 4.4.0-104.127
amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii linux-image-4.4.0-108-generic 4.4.0-108.131
amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii linux-image-4.4.0-109-generic 4.4.0-109.132
amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii linux-image-4.4.0-15-generic 4.4.0-15.31
amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii linux-image-extra-4.4.0-104-generic 4.4.0-104.127
amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
ii linux-image-extra-4.4.0-108-generic 4.4.0-108.131
amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
ii linux-image-extra-4.4.0-109-generic 4.4.0-109.132
amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
ii linux-image-extra-4.4.0-15-generic 4.4.0-15.31
amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
ii linux-image-generic 4.4.0.109.114
amd64 Generic Linux kernel image
root@guest:~#
````
I'm currently able to boot to 4.4.0-15.31
Here is my xen config file that I use to start the vm:
````
# cat /etc/xen/guest.cfg
# /var/lib/xen/images/ubuntu-netboot/xenial16LTS
name = "guest"
#kernel = "/var/lib/xen/images/ubuntu-netboot/xenial16LTS/vmlinuz"
#ramdisk = "/var/lib/xen/images/ubuntu-netboot/xenial16LTS/initrd.gz"
bootloader = "/usr/lib/xen-4.4/bin/pygrub"
memory = 2048
vcpus = 1
disk = [ '/dev/host-disk2-vg/guest-disk,raw,xvda,rw' ]
#
# Networking
#
vif = [ 'ip=xxx.xxx.xxx.xxx ,mac=AA:BB:CC:DD:EE:FF' ]
#
# Behaviour
#
on_poweroff = 'destroy'
on_reboot = 'restart'
on_crash = 'restart'
````
I also tried launching the vm with strace output of
````
strace xl create -c file.cfg
````
is here: https://pastebin.com/8ctS3TQh
I'm a bit lost as to the cause of this... I was hoping to just upgrade the
kernel for meltdown and spectre, but this issue I've never faced before. I
think it might be related to pygrub and the new kernel? I don't know for sure
though anything I can check to figure this out better? Thanks.
---
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Jan 11 10:24 seq
crw-rw---- 1 root audio 116, 33 Jan 11 10:24 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.20.1-0ubuntu2.15
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
DistroRelease: Ubuntu 16.04
HibernationDevice: RESUME=/dev/mapper/www2--vg-swap_1
IwConfig: Error: [Errno 2] No such file or directory
Lspci:
Lsusb: Error: command ['lsusb'] failed with exit code 1:
Package: linux (not installed)
PciMultimedia:
ProcEnviron:
LD_LIBRARY_PATH=<set>
TERM=xterm-256color
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB:
ProcKernelCmdLine: root=/dev/mapper/hostname--vg-root ro quiet splash
$vt_handoff
ProcVersionSignature: Ubuntu 4.4.0-15.31-generic 4.4.6
RelatedPackageVersions:
linux-restricted-modules-4.4.0-15-generic N/A
linux-backports-modules-4.4.0-15-generic N/A
linux-firmware 1.157.14
RfKill: Error: [Errno 2] No such file or directory
Tags: xenial xenial
Uname: Linux 4.4.0-15-generic x86_64
UnreportableReason: The report belongs to a package that is not installed.
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
_MarkForUpload: False
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