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Operating Systems Linux Ubuntu System loks up after upgrade from 14.04 to 16.04 Post 302979356 by migurus on Saturday 13th of August 2016 01:46:08 PM
Old 08-13-2016
any pointers on how to bring it up without X server (graphical UI)?

---------- Post updated at 05:34 PM ---------- Previous update was at 05:30 PM ----------

Quote:
Originally Posted by rbatte1
Would it be useful to post the "some more debug dump info." perhaps?
Yes, I understand that I show very little info, but I don't know what should I show, I was asking about it in my post - what can I show here to get help?

---------- Post updated 08-13-16 at 10:46 AM ---------- Previous update was 08-12-16 at 05:34 PM ----------

Per your suggestion, I brought system up, switched to console tty1 and stopped lightdm service. Then I just left system on overnight and in the morning I saw many soft lock up messages on the console. I tried sudo reboot, but it got locked and did not work, see log below:

Aug 13 10:01:30 XPS-8700 kernel: [40741.481197] NMI watchdog: BUG: soft lockup - CPU#5 stuck for 22s! [reboot:4965]

I am not sure if stopping lightdm service was enough for this experiment. Any suggestions, please?
 

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LTSINFO(1)							   User Commands							LTSINFO(1)

NAME
ltsinfo - display basic information about an LTS SYNOPSIS
ltsinfo [OPTION]... [INFILE] DESCRIPTION
Print information about the labelled transition system (LTS) in INFILE. If INFILE is not supplied, stdin is used. The format of INFILE is determined by its contents. The option --in can be used to force the format for INFILE. The supported formats are: 'aut' for the Aldebaran format (CADP), 'dot' for the GraphViz format, 'fsm' for the Finite State Machine format, 'lts' for the mCRL2 LTS format, or 'svc' for the SVC format OPTIONS
OPTION can be any of the following: -iFORMAT, --in=FORMAT use FORMAT as the input format --timings[=FILE] append timing measurements to FILE. Measurements are written to standard error if no FILE is provided Standard options: -q, --quiet do not display warning messages -v, --verbose display short intermediate messages -d, --debug display detailed intermediate messages --log-level=LEVEL display intermediate messages up to and including level -h, --help display help information --version display version information AUTHOR
Written by Muck van Weerdenburg. REPORTING BUGS
Report bugs at <http://www.mcrl2.org/issuetracker>. COPYRIGHT
Copyright (C) 2012 Technische Universiteit Eindhoven. This is free software. You may redistribute copies of it under the terms of the Boost Software License <http://www.boost.org/LICENSE_1_0.txt>. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
See also the manual at <http://www.mcrl2.org/mcrl2/wiki/index.php/User_manual/ltsinfo>. ltsinfo mCRL2 toolset 201202.0 (Release) April 2012 LTSINFO(1)
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