Kernel panic

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calher

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Joined: 06/19/2015

I just came back to my desk after a few hours and my laptop would not
wake up.  The caps lock indicator was blinking.  I assumed this was a
kernel panic.

But why?

cal@flexo:~$ cat /var/log/syslog
Jan 20 01:35:41 flexo rsyslogd: [origin software="rsyslogd"
swVersion="8.16.0" x-pid="918" x-info="http://www.rsyslog.com"]
rsyslogd was HUPed
Jan 20 01:35:43 flexo anacron[905]: Job `cron.daily' terminated
Jan 20 01:35:43 flexo anacron[905]: Normal exit (1 job run)
Jan 20 01:36:27 flexo org.freedesktop.Notifications[1677]: Gtk-Message:
Failed to load module "topmenu-gtk-module"
Jan 20 01:37:29 flexo
org.mate.panel.applet.MateMenuAppletFactory[1677]: Gtk-Message: Failed
to load module "topmenu-gtk-module"
Jan 20 01:37:29 flexo kernel: [  439.971301] [drm:drm_edid_block_valid
[drm]] *ERROR* EDID checksum is invalid, remainder is 73
Jan 20 01:37:29 flexo kernel: [  439.971305] Raw EDID:
Jan 20 01:37:29 flexo kernel: [  439.971308]   00 ff ff ff ff ff
ff 00 19 c9 00 00 00 00 00 00
Jan 20 01:37:29 flexo kernel: [  439.971310]   00 14 01 03 08 00
00 78 0a 53 0d a0 54 46 94 27
Jan 20 01:37:29 flexo kernel: [  439.971311]   11 46 47 21 08 00
01 01 01 01 01 01 01 01 01 01
Jan 20 01:37:29 flexo kernel: [  439.971313]   01 01 01 01 01 01
66 21 50 b0 51 00 1b 30 40 70
Jan 20 01:37:29 flexo kernel: [  439.971315]   36 00 10 09 00 00
00 1e a9 1a 00 a0 50 00 16 30
Jan 20 01:37:29 flexo kernel: [  439.971316]   30 20 37 00 05 03
00 ff ff ff ff ff ff ff ff ff
Jan 20 01:37:29 flexo kernel: [  439.971318]   ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff
Jan 20 01:37:29 flexo kernel: [  439.971319]   ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff
Jan 20 01:37:30 flexo
org.mate.panel.applet.MateMenuAppletFactory[1677]: (evolution:2769): e-
data-server-WARNING **: e_module_load_all_in_directory: Falló al abrir
el directorio «/usr/lib/evolution-data-server/credential-modules»: No
existe el archivo o el directorio
Jan 20 01:37:30 flexo
org.mate.panel.applet.MateMenuAppletFactory[1677]: (evolution:2769):
camel-WARNING **: Failed to initialize NSS SQL database in
sql:/etc/pki/nssdb: NSS error -8126
Jan 20 01:37:32 flexo
org.mate.panel.applet.MateMenuAppletFactory[1677]: Gtk-Message: Failed
to load module "topmenu-gtk-module"
Jan 20 01:37:33 flexo kernel: [  443.495472] perf interrupt took too
long (2511 > 2500), lowering kernel.perf_event_max_sample_rate to 50000
Jan 20 01:45:37 flexo systemd[1]: Starting Cleanup of Temporary
Directories...
Jan 20 01:45:37 flexo systemd-tmpfiles[3007]:
[/usr/lib/tmpfiles.d/var.conf:14] Duplicate line for path "/var/log",
ignoring.
Jan 20 01:45:37 flexo systemd[1]: Started Cleanup of Temporary
Directories.
Jan 20 01:46:39 flexo kernel: [  989.652860] perf interrupt took too
long (5013 > 5000), lowering kernel.perf_event_max_sample_rate to 25000
cal@flexo:~$

Also, I noticed something strange in /var/log/syslog.1:

Jan 20 01:31:56 flexo ureadahead[342]: ureadahead:909/cmdline:
Ruta relativa ignorada
Jan 20 01:31:56 flexo ureadahead[342]: ureadahead:914/stat: Ruta
relativa ignorada
Jan 20 01:31:56 flexo ureadahead[342]: ureadahead:914/cmdline: Ruta
relativa ignorada
Jan 20 01:31:56 flexo ureadahead[342]: ureadahead:918/stat: Ruta
relativa ignorada
Jan 20 01:31:56 flexo ureadahead[342]: ureadahead:918/cmdline: Ruta
relativa ignorada
Jan 20 01:31:56 flexo ureadahead[342]: ureadahead:926/stat: Ruta
relativa ignorada
Jan 20 01:31:56 flexo ureadahead[342]: ureadahead:926/cmdline: Ruta
relativa ignorada
Jan 20 01:31:56 flexo ureadahead[342]: ureadahead:937/stat: Ruta
relativa ignorada
Jan 20 01:31:56 flexo ureadahead[342]: ureadahead:937/cmdline: Ruta
relativa ignorada
Jan 20 01:31:56 flexo ureadahead[342]: ureadahead:980/stat: Ruta
relativa ignorada
Jan 20 01:31:56 flexo ureadahead[342]: ureadahead:980/cmdline: Ruta
relativa ignorada
Jan 20 01:31:56 flexo ureadahead[342]: ureadahead:985/stat: Ruta
relativa ignorada
Jan 20 01:31:56 flexo ureadahead[342]: ureadahead:985/cmdline: Ruta
relativa ignorada
Jan 20 01:31:56 flexo ureadahead[342]: ureadahead:997/stat: Ruta
relativa ignorada
Jan 20 01:31:56 flexo ureadahead[342]: ureadahead:997/cmdline: Ruta
relativa ignorada
Jan 20 01:31:56 flexo ureadahead[342]: ureadahead:1001/stat: Ruta
relativa ignorada
Jan 20 01:31:56 flexo ureadahead[342]: ureadahead:1001/cmdline: Ruta
relativa ignorada
Jan 20 01:31:56 flexo ureadahead[342]: ureadahead:1013/stat: Ruta
relativa ignorada
Jan 20 01:31:56 flexo ureadahead[342]: ureadahead:1013/cmdline: Ruta
relativa ignorada
Jan 20 01:31:56 flexo ureadahead[342]: ureadahead:1101/stat: Ruta
relativa ignorada

What could be the cause of this?

Magic Banana

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Joined: 07/24/2010

Did the system use to properly wake up?

calher

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Joined: 06/19/2015

El dom, 20-01-2019 a las 12:55 +0100, name at domain escribió:
> Did the system use to properly wake up?

Yes.

What's different now:
- dual monitors
- Ethernet
- USB mouse
- lid kept open more often

zangisharp
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Joined: 01/08/2019

I always have issues when my system go to sleep and I'm forced to restart the system and disable hibernate option in the system.

Sorry I cant help, but I noticed this issue with all the distributions that I tested in the past (Ubuntu,Manjaro,Trisquel,elementary os,Debian,Fedora)

jxself
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Joined: 09/13/2010

There's no information here that indicates the cause. Depending on when it happened the kernel might not have been able to write anything to the drive anyway. The only way to diagnose the cause of a kernel crash is through the use of kdump: https://en.wikipedia.org/wiki/Kdump_(Linux) which you need to have set up and working in advance of it happening.