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[Bug 1531455] Re: reboot under Oracle Virtual Box not possible

 

So I tried kernels 4.2.8, 4.1.0 and 3.13.11.11 . All show the same
beaviour: kernel panic after warm reboot. However now I played with the
setting of Virtual Box and switched back the network adapter type
paravirtualized network (virtio-net) from to Virtual Box's default Intel
Pro/1000 MT Desktop OEM). As far I can remember this was probably before
the update to kernel 4.3 from 4.2. Thus the latter has to say nothing.
As the network performance seems to be roughly the same, this solves the
bug for me, or is at least a reasonable workaround for a productive
machine.

Thus all looks like it is really a bug in Virtual Box as I have
indicated in my first posting?

Thanx for your great help! Should I or can I close this bug then, or
switch it to the Virtual Box Team, or Christopher, could you do this?

Chris

** Changed in: linux (Ubuntu)
       Status: Incomplete => Confirmed

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Title:
  reboot under Oracle Virtual Box not possible

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Running 16.04 server without X under latest Oracle Virtual Box 5.0.12 on Windows. After issuing 'shutdown -r now' the following boot process is not successful and hangs with message:
  ---[ end of Kernel panic - not syncing: VFS: unable to mound root fs on unknown-block(0,0)

  If using 'shutdown -h now' and then staring the machine anew from
  Virtual Box manager, then the system starts as it should. Thus, for
  short, warm reboot hangs and cold reboot operates as desired. I have
  the feeling that this behavior was introduced with kernel 4.3, but I
  cannot swear on it.

  ---
  AlsaDevices:
   total 0
   crw-rw----+ 1 root audio 116,  1 Jan  6 11:34 seq
   crw-rw----+ 1 root audio 116, 33 Jan  6 11:34 timer
  AplayDevices: Error: [Errno 2] No such file or directory
  ApportVersion: 2.19.3-0ubuntu2
  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=UUID=cbc2edd0-9886-40c6-bf14-d75f638fc4cf
  InstallationDate: Installed on 2015-12-23 (14 days ago)
  InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151115)
  IwConfig:
   enp0s3    no wireless extensions.

   lo        no wireless extensions.
  Lsusb:
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 002: ID 80ee:0021 VirtualBox USB Tablet
   Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: innotek GmbH VirtualBox
  Package: linux (not installed)
  PciMultimedia:

  ProcFB:

  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.3.0-5-generic root=UUID=07e383b5-7e12-4530-8ae0-75c104f67e2b ro
  ProcVersionSignature: Ubuntu 4.3.0-5.16-generic 4.3.3
  RelatedPackageVersions:
   linux-restricted-modules-4.3.0-5-generic N/A
   linux-backports-modules-4.3.0-5-generic  N/A
   linux-firmware                           1.154
  RfKill: Error: [Errno 2] No such file or directory
  Tags:  xenial
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  Uname: Linux 4.3.0-5-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 12/01/2006
  dmi.bios.vendor: innotek GmbH
  dmi.bios.version: VirtualBox
  dmi.board.name: VirtualBox
  dmi.board.vendor: Oracle Corporation
  dmi.board.version: 1.2
  dmi.chassis.type: 1
  dmi.chassis.vendor: Oracle Corporation
  dmi.modalias: dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:rvnOracleCorporation:rnVirtualBox:rvr1.2:cvnOracleCorporation:ct1:cvr:
  dmi.product.name: VirtualBox
  dmi.product.version: 1.2
  dmi.sys.vendor: innotek GmbH

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