Request for explanation of error message

[Bret Busby]

On 29/07/2019, Paul Smith <paul at mad-scientist.net> wrote:
> On Mon, 2019-07-29 at 04:14 +0800, Bret Busby wrote:
>> > The first one is simple enough.  It might have been because your disk
>> > is full, in which case it's a symptom not a cause.  What are the
>> > permissions on these files?  Run this command:
>> >
>> >    ls -ald /tmp /tmp/.tX0-lock
>> >
>> > and let us know the results.
>>
>> "
>> bret at bret-MD34045-2521:~$ ls -ald /tmp /tmp/.tX0-lock
>> ls: cannot access '/tmp/.tX0-lock': No such file or directory
>> drwxrwxrwt 19 root root 4096 Jul 29 03:57 /tmp
>
> This looks correct.  That most likely means that this error is a
> symptom of your disk being full, and not the cause of the problem.
>
> After you have cleared out space on your disk, please keep an eye on
> the size of the /var/log/lightdm/x-0.log file.  If it continues to
> grow, send along the last 50 or so lines of output from that file and
> we'll see what it has to say.
>

I have posted a message, that is awaiting moderation - a few kB too large.

If you look at this output;

"
bret at bret-MD34045-2521:~$ sudo head -25 /var/log/lightdm/x-0.log

X.Org X Server 1.19.6
Release Date: 2017-12-20
X Protocol Version 11, Revision 0
Build Operating System: Linux 4.4.0-148-generic x86_64 Ubuntu
Current Operating System: Linux bret-MD34045-2521 4.15.0-55-generic
#60-Ubuntu SMP Tue Jul 2 18:22:20 UTC 2019 x86_64
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.15.0-55-generic
root=UUID=1d3945d6-b596-4d57-8151-d2eef48a56b8 ro quiet splash
vt.handoff=1
Build Date: 03 June 2019  08:10:35AM
xorg-server 2:1.19.6-1ubuntu4.3 (For technical support please see
http://www.ubuntu.com/support)
Current version of pixman: 0.34.0
	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Mon Jul 29 03:29:50 2019
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
xf86EnableIOPorts: failed to set IOPL for I/O (Operation not permitted)
_XSERVTransSocketUNIXAccept: accept() failed
_XSERVTransSocketUNIXAccept: accept() failed
_XSERVTransSocketUNIXAccept: accept() failed
_XSERVTransSocketUNIXAccept: accept() failed
_XSERVTransSocketUNIXAccept: accept() failed
_XSERVTransSocketUNIXAccept: accept() failed
_XSERVTransSocketUNIXAccept: accept() failed
"

that last line is an endless loop.

> Also, you did show you're using an 18.04.2 based system, but if you're
> using lightdm it won't be out-of-the-box vanilla Ubuntu.  I didn't see
> the output of the "lsb_release -a" command which would tell us (I
> think) if you're using a spin or similar.
>
> What distribution did you actually install here?
>

I had posted the output, in response to a previous post by Ralf;

"
bret at bret-MD34045-2521:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 18.04.2 LTS
Release:        18.04
Codename:       bionic
"

It is UbuntuMATE - I believe that had posted that way much earlier in
the thread.

Also,

"
"
uname -v
#60-Ubuntu SMP Tue Jul 2 18:22:20 UTC 2019
bret at bret-MD34045-2521:~$ uname -a
Linux bret-MD34045-2521 4.15.0-55-generic #60-Ubuntu SMP Tue Jul 2
18:22:20 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
"
"

Now, I need to see what I can do before the log file crashes my system again.

I think that a defect exists in the creating of the log -file -
whatever is inputting to the log file should not be in an endless
loop. It ism destructive.

>
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-- 
Bret Busby
Armadale
West Australia
..............

"So once you do know what the question actually is,
 you'll know what the answer means."
- Deep Thought,
 Chapter 28 of Book 1 of
 "The Hitchhiker's Guide to the Galaxy:
 A Trilogy In Four Parts",
 written by Douglas Adams,
 published by Pan Books, 1992

....................................................