Request for explanation of error message

[Bret Busby]

On 29/07/2019, Oliver Grawert <ogra at ubuntu.com> wrote:
> hi,
> Am Montag, den 29.07.2019, 06:12 +0800 schrieb Bret Busby:
>>
>> > >
>> > > "
>> > > 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.
>> >
> ...
>> Thanks to #openbsd's epony and oldlaptop, the resolution is to:
>>
> ... on openbsd ... which you are not running ;)
>
> (and in general it is a bad idea to randomly change system defaults
> while you are debugging an issue *only you* seem to have ... this
> indicates that something you changed actually broke it ... this is
> rarely caused by a system config everyone else uses too)
>
> the error indicates that there are some broken file permissions ...
>
> what type of graphical session do you run ...
>

The computer is running UbuntuMATE 18.04.2 so I assume that the MATE
context is what you are asking.

> could it be that you ran some graphical app (for example a file
> manager) as root that was not designed for this (so it changed the
> permissions of a (potentially hidden) file to be only root readable
> while it is normally used/written to by a user) ...
>

The file manager caja has an option in the File menu; "Open as
Administrator", which I have used, I may have used that to change the
permissions on two of the extra partitions that I had created at
system installation, changing the permissions on the partitions, to
allow me, as a user, to write to them.

> do you have an ~/.xinitrc in your home dir ?
>

Not shown;

"
bret at bret-MD34045-2521:~$ ls -l .x*
-rw------- 1 bret bret  211427 Jul 29 18:56 .xsession-errors
-rw------- 1 bret bret 2531811 Jul 29 03:23 .xsession-errors.old
bret at bret-MD34045-2521:~$
"

The GUI file manager caja also shows the presence of a file m.Xauthority .

> did you ever edit /etc/X11/xorg.xonf (either manually or by using a
> tool like nvidia-config)
>

No. I assume that the file extension that you meant, is  .conf .

The system is

"
MEDION® AKOYA® P40000 Multimedia PC System
"

with

"
8th generation Intel® Core™ i3-8100 processor
with integrated Intel® UHD Graphics 630
(3.6 GHz, 4 cores and 6 MB Intel® Smart Cache)
Windows 10 Home
Faster to done: start fast and finish first.
Windows gives you great multi-tasking features for quickly and
efficiently getting things done. The Start menu is better than ever.
Work easily with multiple apps open and benefit from the new ways to
stay organised
1 TB (1,000 GB) hard drive
Forget worries about running out of memory. The large 1000 GB hard
drive will always have plenty of space for your movies, photos, music
and other files.
8 GB DDR4 RAM memory
Modern DDR4 memory works at higher clock speed and lower voltage.
That's why DDR4 RAM is much faster than previous memory generations,
yet uses less power. Using DDR4 RAM makes your system more efficient
and noticeably more responsive.
Fast wireless LAN ac standard technology
with integrated Bluetooth® function
Multi-standard DVD/CD burner with DVD-RAM and dual-layer support
Enjoy your entertainment experience with the multi-standard DVD/CD
burner with DVD-RAM and dual-layer support.
Multi-card reader for SD/MS/MMC memory cards
Hot-swap mobile rack1
Swap your 2.5” and 3.5” SATA hard drives quickly and easily – even
while the PC is running. Perfect for data backups, data exchange and
alternative operating systems.
Gigabit LAN network controller (10/100/1000 Mbit/s.)
6-channel high-definition audio
USB keyboard and optical USB mouse
"

- https://aldi.medion.com/md34045/au/content/ausstattung.php

The RAM has been expanded to 32GB (to deal with web pages that use
javascript and other junk).

> do you have any third party stuff installed from a PPA or elsewhere
> that could have replaced system libs or apps in a broken way ... (note
> that .deb packages give their creator 100% root access to your system,
> installing foreign packages is always a matter of trust here (this is
> why snap packages exist btw))
>

Not as far as I am aware.

> ciao
> 	oli

Given the original error posted;

"
Jul 27 00:06:43 bret-MD34045-2521 kernel: [332491.053210] pcieport
0000:00:1d.0: AER: Corrected error received: id=00e8
Jul 27 00:06:43 bret-MD34045-2521 kernel: [332491.053216] pcieport
0000:00:1d.0: PCIe Bus Error: severity=Corrected, type=Physical Layer,
id=00e8(Receiver ID)
Jul 27 00:06:43 bret-MD34045-2521 kernel: [332491.053219] pcieport
0000:00:1d.0:   device [8086:a298] error status/mask=00000001/00002000
Jul 27 00:06:43 bret-MD34045-2521 kernel: [332491.053221] pcieport
0000:00:1d.0:    [ 0] Receiver Error         (First)
"

and the

"
==) 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
"

and the

"integrated Intel® UHD Graphics 630"

I am wondering whether the error is from the combination of the three.

Is a command available, for use at the command line, or, otherwise, a
GUI application, that shows exactly what is
"
00:1d.0 PCI bridge: Intel Corporation 200 Series PCH PCI Express Root
Port #9 (rev f0)
"

?

A number of issues appear to be  involved, here, the first, is the
combination of the two errors (error sets ?) above, and, a second, is
the thing (?) that incessantly writes to the log files, compulsively
eating the free space, like a rabid PacMan - whatever is doing that,
as I have previously stated, appears to be defective and uncontrolled
and uncontrollable.


-- 
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

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