Hi,

I regularly have problems with freeze of the system (except the mouse cursor), the keyboard is no longer responding.

Video example : https://kumo.ikilote.net/index.php/s/nc6DasSKcSzsCnM

It's completely random, I can have nothing problems since 2~3 days and then there are 3 crashes almost immediately after starting KDE. Currently this more 5~6 per evening.

After 3 freezes in 20 minutes today:

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$ journalctl -b -1 -p err
juil. 26 18:38:23 zefling-1 kernel: ACPI Error: [DSSP] Namespace lookup failure, AE_NOT_FOUND (20170831/psargs-364)
juil. 26 18:38:23 zefling-1 kernel: ACPI Error: Method parse/execution failed \_SB.PCI0.SAT0.SPT4._GTF, AE_NOT_FOUND (20170831/psparse-550)
juil. 26 18:38:23 zefling-1 kernel: ACPI Error: [DSSP] Namespace lookup failure, AE_NOT_FOUND (20170831/psargs-364)
juil. 26 18:38:23 zefling-1 kernel: ACPI Error: Method parse/execution failed \_SB.PCI0.SAT0.SPT4._GTF, AE_NOT_FOUND (20170831/psparse-550)
juil. 26 18:38:25 zefling-1 NetworkManager[924]: nm_device_get_device_type: assertion 'NM_IS_DEVICE (self)' failed
juil. 26 18:38:30 zefling-1 pulseaudio[1847]: [pulseaudio] pid.c: Daemon already running.
juil. 26 18:38:30 zefling-1 pulseaudio[1866]: [pulseaudio] pid.c: Daemon already running.
juil. 26 18:38:30 zefling-1 mysqld[2070]: 180726 18:38:30 [Note] /usr/sbin/mysqld (mysqld 10.0.34-MariaDB-0ubuntu0.16.04.1) starting as process 2069 ...
juil. 26 18:38:30 zefling-1 mysqld[2070]: 180726 18:38:30 [Note] InnoDB: innodb_empty_free_list_algorithm has been changed to legacy because of small buffer pool size. In order to use backoff, increase buffer pool at least up to 20MB.
juil. 26 18:38:30 zefling-1 mysqld[2070]:
juil. 26 18:38:30 zefling-1 mysqld[2070]: 180726 18:38:30 [Note] InnoDB: Using mutexes to ref count buffer pool pages
juil. 26 18:38:30 zefling-1 mysqld[2070]: 180726 18:38:30 [Note] InnoDB: The InnoDB memory heap is disabled
juil. 26 18:38:30 zefling-1 mysqld[2070]: 180726 18:38:30 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
juil. 26 18:38:30 zefling-1 mysqld[2070]: 180726 18:38:30 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
juil. 26 18:38:30 zefling-1 mysqld[2070]: 180726 18:38:30 [Note] InnoDB: Compressed tables use zlib 1.2.8
juil. 26 18:38:30 zefling-1 mysqld[2070]: 180726 18:38:30 [Note] InnoDB: Using Linux native AIO
juil. 26 18:38:30 zefling-1 mysqld[2070]: 180726 18:38:30 [Note] InnoDB: Using CPU crc32 instructions
juil. 26 18:38:30 zefling-1 mysqld[2070]: 180726 18:38:30 [Note] InnoDB: Initializing buffer pool, size = 128.0M
juil. 26 18:38:30 zefling-1 mysqld[2070]: 180726 18:38:30 [Note] InnoDB: Completed initialization of buffer pool
juil. 26 18:38:30 zefling-1 mysqld[2070]: 180726 18:38:30 [Note] InnoDB: Highest supported file format is Barracuda.
juil. 26 18:38:30 zefling-1 mysqld[2070]: 180726 18:38:30 [Note] InnoDB: The log sequence numbers 1764840 and 1764840 in ibdata files do not match the log sequence number 1766837 in the ib_logfiles!
juil. 26 18:38:30 zefling-1 mysqld[2070]: 180726 18:38:30 [Note] InnoDB: Restoring possible half-written data pages from the doublewrite buffer...
juil. 26 18:38:31 zefling-1 mysqld[2070]: 180726 18:38:31 [Note] InnoDB: 128 rollback segment(s) are active.
juil. 26 18:38:31 zefling-1 mysqld[2070]: 180726 18:38:31 [Note] InnoDB: Waiting for purge to start
juil. 26 18:38:31 zefling-1 mysqld[2070]: 180726 18:38:31 [Note] InnoDB:  Percona XtraDB (http://www.percona.com) 5.6.36-83.0 started; log sequence number 1766837
juil. 26 18:38:31 zefling-1 mysqld[2070]: 180726 18:38:31 [Note] Plugin 'FEEDBACK' is disabled.
juil. 26 18:38:31 zefling-1 mysqld[2070]: 180726 18:38:31 [Note] Server socket created on IP: '127.0.0.1'.
juil. 26 18:38:31 zefling-1 mysqld[2070]: 180726 18:38:31 [Note] /usr/sbin/mysqld: ready for connections.
juil. 26 18:38:31 zefling-1 mysqld[2070]: Version: '10.0.34-MariaDB-0ubuntu0.16.04.1'  socket: '/var/run/mysqld/mysqld.sock'  port: 3306  Ubuntu 16.04
juil. 26 18:38:55 zefling-1 pulseaudio[1457]: [pulseaudio] bluez5-util.c: GetManagedObjects() failed: org.freedesktop.DBus.Error.TimedOut: Failed to activate service 'org.bluez': timed out
juil. 26 18:43:29 zefling-1 anacron[898]: Can't find sendmail at /usr/sbin/sendmail, not mailing output


I have the impression that there is nothing specific about mistakes.

It's still strange. I did not have its problems with KDE 4 (I used Debian 8 KDE during 2 years), but I realize that it is unstable that the distribution with KDE 5: Kubuntu, Debian KDE or KDE Neon. A problem of hardware compatibility with Plasma and nouveau?? I have not changed hardware between the two versions of KDE.

For info, my computer:
- Intel Core i5 4570
- 16 Go de RAM
- nVidia GeForce 770 GTX
- monitor 4K iiyama 40"

Hi,
Take a look a this link: https://forums.linuxmint.com/viewtopic.php?t=251998
Hope it helps,

It's not a problem on boot. I currently use my system. (No freeze since my previous message).
My computer is Linux only.
Or, I misunderstood, is it a problem with grub ?

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$ cat /etc/default/grub
# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"

In /var/log/kern.log I have strange lines before freeze :

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^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@
^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@
^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@
^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@
^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@
^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@


Or this lines :

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Jul 29 11:07:01 zefling-1 kernel: [  538.506436] nouveau 0000:01:00.0: fifo: write fault at 0000306000 engine 00 [GR] client 0f [GPC3/PROP_0] reason 02 [PTE] on channel 2 [007f992000 Xorg[1073]]
Jul 29 11:07:01 zefling-1 kernel: [  538.506443] nouveau 0000:01:00.0: fifo: channel 2: killed
Jul 29 11:07:01 zefling-1 kernel: [  538.506445] nouveau 0000:01:00.0: fifo: runlist 0: scheduled for recovery
Jul 29 11:07:01 zefling-1 kernel: [  538.506448] nouveau 0000:01:00.0: fifo: engine 0: scheduled for recovery
Jul 29 11:07:01 zefling-1 kernel: [  538.506451] nouveau 0000:01:00.0: Xorg[1073]: channel 2 killed!

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Jul 29 13:23:16 zefling-1 kernel: [ 8101.016125] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
Jul 29 13:23:16 zefling-1 kernel: [ 8101.016143] nouveau 0000:01:00.0: fifo: runlist 0: scheduled for recovery
Jul 29 13:23:16 zefling-1 kernel: [ 8101.016162] nouveau 0000:01:00.0: fifo: channel 9: killed
Jul 29 13:23:16 zefling-1 kernel: [ 8101.016172] nouveau 0000:01:00.0: fifo: engine 0: scheduled for recovery
Jul 29 13:23:16 zefling-1 kernel: [ 8101.016699] nouveau 0000:01:00.0: plasmashell[1439]: channel 9 killed!

I come to think of it as maybe a hardware issue ... But how to test it?

Hi,
I don't think is a GRUB problem.

Take a look a t hese link related to the nouveau driver for the Nvidia Driver.
https://www.google.com/url?sa=t&rct=j&q ... OQWSeMXkEh

https://ubuntuforums.org/showthread.php?t=2382623

Regards,

Ok, thanks, no real solution for the moment.

I trust you can can do better. This is just too ambiguous. Cheers.

What is “too ambiguous”?

Hi Z??fling,
Did you tried to search this:
NVIDIA GeForce GTX 770 on linux random crashes
I still thinking that the NVIDIA card is the problem.
You may need a proprietary driver, as I could see in other Linux forums.
You coud find the drivers in this page, in the manual driver search section you could download the Linux 32 or 64 bit driver.
https://www.geforce.com/drivers

Have you also tried running Memtest86 to see if memory is stable?
https://www.memtest86.com/
You could also run the memtest from the live cd.
Regards

No problem whit Memtest.

I'm found the applications of the hell for me : Firefox (Waterfox) & Firefox Nightly. With the browser launches, the probability of crash explodes, but it's very weird. No crash for almost a week, then tonight ... I'm at my 12th freeze & reboot.

I would like to try the official nVidia drivers, but the last time I had to do a complete re-installation, plasma was totally unstable. Strange artifacts, black screens...

Currently, I use Chromium.