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[private_lock <private_lock@xxxxxxxxx>]

1. Wow ... I got this apport-collect thingy running ... it won't run
from any Konsole inside KDE, only the Ctrl+Alt+F1 text console will do.
But phew ... it's asking to open a browser for login to ubuntu.com. Well
I had to take another photo of the lengthy URL, switch back to X, launch
firefox, type it in and allow the live session access to my account ...
really intuitive!

2.Once I was playing around with switching between the consoles back and
forth and got a soft-lockup only by trying to log in (sorry, no picture
of that one). So while the message repeated every 20 seconds or so, I
could still switch back and forth via Alt+F1, Alt+F2, Alt+F3, though at
some point Alt+F2 stopped working and only Alt+F1, Alt+F3-6 showed
distinct consoles. Trying to go to X via Alt+F7 I was stuck in a blank
black screen and could not get back to text console.

3. (see screenshot): Once I got a softlockup, while bash was trying to
figure out, that apport-collect is not installed by default. Actually
the network cable was plugged out at that boot up. I didn't click on
anything in the language chooser dialog, just waited for it to come up
and switched directly to the console via Ctrl+Alt+F1 and logged in.

4. Right now I'm writing from inside a fully functional live-session. I
didn't even need to experiment with nomodeset. The requirement is a true
cold boot with about 30 seconds switched off completely. I did this 3
times in a row and it's rock solid. Whereas a cold boot after only a few
seconds (really switching off and pressing the power button to start
again) or a reboot via Alt+SyReq+b fails reliably (also 3 times in a
row). It will go to the select language (English or German doesn't make
a difference), then pressing try kubuntu, the screen goes all black (no
mouse, no cursor, nothing) and it sits there forever. In addition, it
won't accept keyboard commands like Ctrl+Alt+F1 to switch to the console
or the good old Ctrl+Alt+Del. The only key combination, I could make
work is Alt+SyReq+b, which obviously does not allow to investigate the
error any further.

So as this is a fresh livesession, that I ran apport-collect, I doubt,
there is any error in the logs, because my harddrive is encrypted and
the USB stick is mounted readonly.

Oh and finally: For the last days, all theses experiments were done with the very same USB-stick. I haven't written anything to it and the md5-checksums are all OK. It's from this iso-image:
http://cdimage.ubuntu.com/kubuntu/releases/15.10/release/kubuntu-15.10-desktop-amd64.iso

** Attachment added: "screenshot of soft-lockup even before clicking on try kubuntu (issue 3)"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1509839/+attachment/4508781/+files/IMG_20151029_001157.jpg

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

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https://bugs.launchpad.net/bugs/1509839

Title:
  segfault on start of live session in kactivitymanager / libqt5sql

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I've installed 15.10 Wily Werewolf to my USB stick via usb-creator and restart the laptop
  on boot, I'm asked for the language and if I want to install or try a live session
  I select try life session, the dialog disappears and the machine is frozen

  Next try:
  boot to selection dialog
  switch to console crtl+alt+F1 (takes a moment)
  issue alt+syreq+1 and alt+sysreq+t ... both answer "operation is disabled"
  switch back to X ctrl+alt+F7 & click try live session
  immediately switch back to console ctrl+alt+F1
  watchdog detects hard lockup a few seconds later
  see attached screenshot

  reproduced also in beta1 of wily werewolf ... a month ago I imagine
  the beta was still starting, as for bug #1492840. But I've reformated
  the stick meanwhile and cannot really guarantee, that I didn't confuse
  the multiple ISO's I tried in short time.

  version information:
  kernel 4.2.0-16-generic #19-Ubuntu (4.1.0-3-generic #3-Ubuntu)
  libqt5sql.so 5.4.2 (both)
  currently running Kubuntu 15.04 on the same hardware
  --- 
  ApportVersion: 2.19.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  kubuntu    3331 F.... pulseaudio
   /dev/snd/controlC0:  kubuntu    3331 F.... pulseaudio
  CasperVersion: 1.365
  DistroRelease: Ubuntu 15.10
  LiveMediaBuild: Kubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  MachineType: Micro-Star International Co., Ltd. GE70 2OC\2OD\2OE
  Package: linux (not installed)
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/username.seed boot=casper maybe-ubiquity quiet splash ---
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-16-generic N/A
   linux-backports-modules-4.2.0-16-generic  N/A
   linux-firmware                            1.149
  Tags:  wily
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  Uname: Linux 4.2.0-16-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 11/06/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: E1757IMS.520
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: MS-1757
  dmi.board.vendor: Micro-Star International Co., Ltd.
  dmi.board.version: REV:0.B
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Micro-Star International Co., Ltd.
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrE1757IMS.520:bd11/06/2014:svnMicro-StarInternationalCo.,Ltd.:pnGE702OC\2OD\2OE:pvrREV1.0:rvnMicro-StarInternationalCo.,Ltd.:rnMS-1757:rvrREV0.B:cvnMicro-StarInternationalCo.,Ltd.:ct10:cvrN/A:
  dmi.product.name: GE70 2OC\2OD\2OE
  dmi.product.version: REV:1.0
  dmi.sys.vendor: Micro-Star International Co., Ltd.

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