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Old 09-22-2008, 08:26 PM
Nicolas BERCHER
 
Default Clocksource tsc unstable (delta = 51799116882 ns)

Hi,

Since yesterday, some processes are really slow on my Lenny/Sid.
KDE clock is 10 hours late, bash is really really slow, keyboard
repetition seems broken or really long to start, etc.


I found this in /var/log/messages:
[1510354.692239] Clocksource tsc unstable (delta = 51799116882 ns)

Can I do something to fix this without a reboot ?

N.


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Old 09-22-2008, 08:26 PM
Nicolas BERCHER
 
Default Clocksource tsc unstable (delta = 51799116882 ns)

Celejar a écrit*:

On Mon, 22 Sep 2008 22:26:36 +0200
Nicolas BERCHER <nbercher@yahoo.fr> wrote:



Hi,

Since yesterday, some processes are really slow on my Lenny/Sid.
KDE clock is 10 hours late, bash is really really slow, keyboard
repetition seems broken or really long to start, etc.

I found this in /var/log/messages:
[1510354.692239] Clocksource tsc unstable (delta = 51799116882 ns)



I generally see messages like that; I always assumed they were harmless:

Sep 23 00:13:54 lizzie kernel: Clocksource tsc unstable (delta = -85149529 ns)


Celejar

Thank you for your answer.

Today, this message is not harmless: many things are so slow...

As I don't want to reboot my Debian (so bad to do that !), I'm waiting
for possible fixes from the list and Google too.



Strangely Icedove & Firefox are ok, so I can read/write e-mails...



Apache/PHP/mySQL are a little slow too.

In general functionalities that require a specific timing are really
slow, even the bash/Konsole completion beep that spends about 10
seconds !



Any idea ?

N.
 
Old 09-23-2008, 06:12 AM
Celejar
 
Default Clocksource tsc unstable (delta = 51799116882 ns)

On Mon, 22 Sep 2008 22:26:36 +0200
Nicolas BERCHER <nbercher@yahoo.fr> wrote:

> Hi,
>
> Since yesterday, some processes are really slow on my Lenny/Sid.
> KDE clock is 10 hours late, bash is really really slow, keyboard
> repetition seems broken or really long to start, etc.
>
> I found this in /var/log/messages:
> [1510354.692239] Clocksource tsc unstable (delta = 51799116882 ns)

I generally see messages like that; I always assumed they were harmless:

Sep 23 00:13:54 lizzie kernel: Clocksource tsc unstable (delta = -85149529 ns)


Celejar
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Old 09-23-2008, 07:38 AM
Sjoerd Hardeman
 
Default Clocksource tsc unstable (delta = 51799116882 ns)

Nicolas BERCHER wrote:

Celejar a écrit :

On Mon, 22 Sep 2008 22:26:36 +0200
Nicolas BERCHER <nbercher@yahoo.fr> wrote:



Hi,

Since yesterday, some processes are really slow on my Lenny/Sid.
KDE clock is 10 hours late, bash is really really slow, keyboard
repetition seems broken or really long to start, etc.


I found this in /var/log/messages:
[1510354.692239] Clocksource tsc unstable (delta = 51799116882 ns)



I generally see messages like that; I always assumed they were harmless:

Sep 23 00:13:54 lizzie kernel: Clocksource tsc unstable (delta = -85149529 ns)


Celejar

Thank you for your answer.
Today, this message is not harmless: many things are so slow...
As I don't want to reboot my Debian (so bad to do that !), I'm waiting
for possible fixes from the list and Google too.


Strangely Icedove & Firefox are ok, so I can read/write e-mails...

Apache/PHP/mySQL are a little slow too.
In general functionalities that require a specific timing are really
slow, even the bash/Konsole completion beep that spends about 10 seconds !


Any idea ?
N.
I doubt the "Clocksource tsc unstable"-error causes the slowness, as
that is a common error on some of my machines too. Apparently something
is hogging your system. Can you give us the result of top?


Sjoerd
 
Old 09-23-2008, 08:14 AM
Nicolas BERCHER
 
Default Clocksource tsc unstable (delta = 51799116882 ns)

Sjoerd Hardeman a écrit :

Nicolas BERCHER wrote:

Celejar a écrit :

On Mon, 22 Sep 2008 22:26:36 +0200
Nicolas BERCHER <nbercher@yahoo.fr> wrote:



Hi,

Since yesterday, some processes are really slow on my Lenny/Sid.
KDE clock is 10 hours late, bash is really really slow, keyboard
repetition seems broken or really long to start, etc.


I found this in /var/log/messages:
[1510354.692239] Clocksource tsc unstable (delta = 51799116882 ns)



I generally see messages like that; I always assumed they were
harmless:


Sep 23 00:13:54 lizzie kernel: Clocksource tsc unstable (delta =
-85149529 ns)



Celejar

Thank you for your answer.
Today, this message is not harmless: many things are so slow...
As I don't want to reboot my Debian (so bad to do that !), I'm
waiting for possible fixes from the list and Google too.


Strangely Icedove & Firefox are ok, so I can read/write e-mails...

Apache/PHP/mySQL are a little slow too.
In general functionalities that require a specific timing are really
slow, even the bash/Konsole completion beep that spends about 10
seconds !


Any idea ?
N.
I doubt the "Clocksource tsc unstable"-error causes the slowness, as
that is a common error on some of my machines too. Apparently
something is hogging your system. Can you give us the result of top?


Sjoerd

Since my last mail, I rebooted the machine (using reset, init 6 wasn't
able to reboot after a few minutes).
Just before reseting, top was long to start displaying stats and then it
started to work nice (normal speed) and showed 9999% CPU usage on
certain processes !

It was not often the case, some stats snaps looked good.

Then, I had troubles when I logged into KDE: it first failed (kind of
freeze while waiting for something that never comes), I restarted X
(ctrl+alt+backspace) and then KDE login was ok.
In KDE, I now see that the audio hardware is no more recognized
(according to kmix & amarok/xine (failed to start xine engine)), but
snd* modules seems to be loaded as appropriate...


I wonder about a hardware failure...
This Debian was installed a month ago and I didn't any problem before,
even on the Fedora I had before for a year on this hardware.


/var/log/messages also reports some ACPI errors & warnings (but I don't
really understand them):

# grep -i acpi /var/log/messages
Sep 23 09:24:16 ocarina kernel: [ 0.000000] ACPI Error
(tbxfroot-0218): A valid RSDP was not found [20070126]
Sep 23 09:24:16 ocarina kernel: [ 0.000000] Nvidia board detected.
Ignoring ACPI timer override.
Sep 23 09:24:16 ocarina kernel: [ 0.000000] If you got timer trouble
try acpi_use_timer_override

Sep 23 09:24:16 ocarina kernel: [ 0.101203] ACPI: Core revision 20070126
Sep 23 09:24:16 ocarina kernel: [ 0.101235] ACPI Exception
(tbxface-0629): AE_NO_ACPI_TABLES, While loading namespace from ACPI
tables [20070126]

Sep 23 09:24:16 ocarina kernel: [ 0.349298] ACPI: Interpreter disabled.
Sep 23 09:24:16 ocarina kernel: [ 0.349334] pnp: PnP ACPI: disabled
Sep 23 09:24:16 ocarina kernel: [ 0.404070] ACPI Error
(evxfevnt-0186): Could not enable RealTimeClock event [20070126]
Sep 23 09:24:16 ocarina kernel: [ 0.404077] ACPI Warning
(evxface-0145): Could not enable fixed event 4 [20070126]
Sep 23 09:24:16 ocarina kernel: [ 1.501108] thermal: Unknown symbol
acpi_processor_set_thermal_limit
Sep 23 09:24:16 ocarina kernel: [ 53.599411] acpi_cpufreq: Unknown
symbol acpi_processor_notify_smm
Sep 23 09:24:16 ocarina kernel: [ 53.599471] acpi_cpufreq: Unknown
symbol acpi_processor_unregister_performance
Sep 23 09:24:16 ocarina kernel: [ 53.599626] acpi_cpufreq: Unknown
symbol acpi_processor_preregister_performance
Sep 23 09:24:16 ocarina kernel: [ 53.599697] acpi_cpufreq: Unknown
symbol acpi_processor_register_performance
Sep 23 09:24:16 ocarina kernel: [ 53.268210] acpi_cpufreq: Unknown
symbol acpi_processor_notify_smm
Sep 23 09:24:16 ocarina kernel: [ 53.268269] acpi_cpufreq: Unknown
symbol acpi_processor_unregister_performance
Sep 23 09:24:16 ocarina kernel: [ 53.268424] acpi_cpufreq: Unknown
symbol acpi_processor_preregister_performance
Sep 23 09:24:16 ocarina kernel: [ 53.268495] acpi_cpufreq: Unknown
symbol acpi_processor_register_performance
Sep 23 09:24:54 ocarina kernel: [ 82.751323] NVRM: failed to register
with the ACPI subsystem!
Sep 23 09:29:27 ocarina kernel: [ 353.257360] NVRM: failed to
unregister from the ACPI subsystem!
Sep 23 09:29:27 ocarina kernel: [ 353.333124] NVRM: failed to register
with the ACPI subsystem!



Thanks for help, I don't understand yet what kind of problems I have...
N.


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Old 09-23-2008, 08:16 AM
Sjoerd Hardeman
 
Default Clocksource tsc unstable (delta = 51799116882 ns)

Nicolas BERCHER wrote:

Sjoerd Hardeman a écrit :

Nicolas BERCHER wrote:

Celejar a écrit :

On Mon, 22 Sep 2008 22:26:36 +0200
Nicolas BERCHER <nbercher@yahoo.fr> wrote:



Hi,

Since yesterday, some processes are really slow on my Lenny/Sid.
KDE clock is 10 hours late, bash is really really slow, keyboard
repetition seems broken or really long to start, etc.


I found this in /var/log/messages:
[1510354.692239] Clocksource tsc unstable (delta = 51799116882 ns)



I generally see messages like that; I always assumed they were
harmless:


Sep 23 00:13:54 lizzie kernel: Clocksource tsc unstable (delta =
-85149529 ns)



Celejar

Thank you for your answer.
Today, this message is not harmless: many things are so slow...
As I don't want to reboot my Debian (so bad to do that !), I'm
waiting for possible fixes from the list and Google too.


Strangely Icedove & Firefox are ok, so I can read/write e-mails...

Apache/PHP/mySQL are a little slow too.
In general functionalities that require a specific timing are really
slow, even the bash/Konsole completion beep that spends about 10
seconds !


Any idea ?
N.
I doubt the "Clocksource tsc unstable"-error causes the slowness, as
that is a common error on some of my machines too. Apparently
something is hogging your system. Can you give us the result of top?


Sjoerd

Since my last mail, I rebooted the machine (using reset, init 6 wasn't
able to reboot after a few minutes).
Just before reseting, top was long to start displaying stats and then it
started to work nice (normal speed) and showed 9999% CPU usage on
certain processes !

It was not often the case, some stats snaps looked good.
Well, that at least explains why the machine was/is slow. Killing these
processes might help.


Then, I had troubles when I logged into KDE: it first failed (kind of
freeze while waiting for something that never comes), I restarted X
(ctrl+alt+backspace) and then KDE login was ok.
In KDE, I now see that the audio hardware is no more recognized
(according to kmix & amarok/xine (failed to start xine engine)), but
snd* modules seems to be loaded as appropriate...
Strange, although a /etc/init.d/alsa-utils restart sometimes works, or
realoding the sound modules. Then, you probably also have to restart kdm


I wonder about a hardware failure...
This Debian was installed a month ago and I didn't any problem before,
even on the Fedora I had before for a year on this hardware.
That can of course be. Try running memcheck, and try booting from a
live-cd might give you some clues.


/var/log/messages also reports some ACPI errors & warnings (but I don't
really understand them):
Sorry, I'm centrainly not an acpi-expert. Let's keep the discussion on
the list, maybe someone else can help.

# grep -i acpi /var/log/messages
Sep 23 09:24:16 ocarina kernel: [ 0.000000] ACPI Error
(tbxfroot-0218): A valid RSDP was not found [20070126]
Sep 23 09:24:16 ocarina kernel: [ 0.000000] Nvidia board detected.
Ignoring ACPI timer override.
Sep 23 09:24:16 ocarina kernel: [ 0.000000] If you got timer trouble
try acpi_use_timer_override

Sep 23 09:24:16 ocarina kernel: [ 0.101203] ACPI: Core revision 20070126
Sep 23 09:24:16 ocarina kernel: [ 0.101235] ACPI Exception
(tbxface-0629): AE_NO_ACPI_TABLES, While loading namespace from ACPI
tables [20070126]

Sep 23 09:24:16 ocarina kernel: [ 0.349298] ACPI: Interpreter disabled.
Sep 23 09:24:16 ocarina kernel: [ 0.349334] pnp: PnP ACPI: disabled
Sep 23 09:24:16 ocarina kernel: [ 0.404070] ACPI Error
(evxfevnt-0186): Could not enable RealTimeClock event [20070126]
Sep 23 09:24:16 ocarina kernel: [ 0.404077] ACPI Warning
(evxface-0145): Could not enable fixed event 4 [20070126]
Sep 23 09:24:16 ocarina kernel: [ 1.501108] thermal: Unknown symbol
acpi_processor_set_thermal_limit
Sep 23 09:24:16 ocarina kernel: [ 53.599411] acpi_cpufreq: Unknown
symbol acpi_processor_notify_smm
Sep 23 09:24:16 ocarina kernel: [ 53.599471] acpi_cpufreq: Unknown
symbol acpi_processor_unregister_performance
Sep 23 09:24:16 ocarina kernel: [ 53.599626] acpi_cpufreq: Unknown
symbol acpi_processor_preregister_performance
Sep 23 09:24:16 ocarina kernel: [ 53.599697] acpi_cpufreq: Unknown
symbol acpi_processor_register_performance
Sep 23 09:24:16 ocarina kernel: [ 53.268210] acpi_cpufreq: Unknown
symbol acpi_processor_notify_smm
Sep 23 09:24:16 ocarina kernel: [ 53.268269] acpi_cpufreq: Unknown
symbol acpi_processor_unregister_performance
Sep 23 09:24:16 ocarina kernel: [ 53.268424] acpi_cpufreq: Unknown
symbol acpi_processor_preregister_performance
Sep 23 09:24:16 ocarina kernel: [ 53.268495] acpi_cpufreq: Unknown
symbol acpi_processor_register_performance
Sep 23 09:24:54 ocarina kernel: [ 82.751323] NVRM: failed to register
with the ACPI subsystem!
Sep 23 09:29:27 ocarina kernel: [ 353.257360] NVRM: failed to
unregister from the ACPI subsystem!
Sep 23 09:29:27 ocarina kernel: [ 353.333124] NVRM: failed to register
with the ACPI subsystem!



Thanks for help, I don't understand yet what kind of problems I have...
N.
 
Old 09-23-2008, 08:27 AM
Nicolas BERCHER
 
Default Clocksource tsc unstable (delta = 51799116882 ns)

Since my last mail, I rebooted the machine (using reset, init 6
wasn't able to reboot after a few minutes).
Just before reseting, top was long to start displaying stats and then
it started to work nice (normal speed) and showed 9999% CPU usage on
certain processes !

It was not often the case, some stats snaps looked good.
Well, that at least explains why the machine was/is slow. Killing
these processes might help.
I thought it was a calculation error because the timing became wrong
(delta=51799116882ns), isn't it...?


Then, I had troubles when I logged into KDE: it first failed (kind of
freeze while waiting for something that never comes), I restarted X
(ctrl+alt+backspace) and then KDE login was ok.
In KDE, I now see that the audio hardware is no more recognized
(according to kmix & amarok/xine (failed to start xine engine)), but
snd* modules seems to be loaded as appropriate...
Strange, although a /etc/init.d/alsa-utils restart sometimes works, or
realoding the sound modules. Then, you probably also have to restart kdm

I did this:
# /etc/init.d/alsa-utils restart && /etc/init.d/kdm restart
It didn't have any effects on the audio hardware in KDE.
I also launched a memtest (a few minutes) after reseting the computer:
nothing wrong.



I wonder about a hardware failure...
This Debian was installed a month ago and I didn't any problem
before, even on the Fedora I had before for a year on this hardware.
That can of course be. Try running memcheck, and try booting from a
live-cd might give you some clues.

Yeah, that's an idea... with a fresh Knoppix CD!

Thanks,
N.


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Old 09-23-2008, 08:40 AM
Nicolas BERCHER
 
Default Clocksource tsc unstable (delta = 51799116882 ns)

Note: When the problem occured, cat
/sys/devices/system/clocksource/clocksource0/current_clocksource
returned "jiffie"

After reseting the computer it returns "tsc".


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Old 09-23-2008, 03:01 PM
Nicolas BERCHER
 
Default Clocksource tsc unstable (delta = 51799116882 ns)

I solved some of the problems I had:
My computer serves both as a web server and as a personal desktop
computer, so my KDE sessions can be a few days, weeks or months long !
The problem with my sound card is solved and is due to a mistake I did
when I changed the groups my login is part of (wrong use of usermod !)
that was updated on new sessions this morning.


It remains the main issue & the clocksource: I don't know why my system
became instable.
Since then, I reactivated ACPI in BIOS, I have less error/warns messages
during the boot sequence.


I found some tricks on http://kerneltrap.org/node/8306
Some people recommand to use the kernel option clocksource=hpet

Wait & see !
N.


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Old 09-23-2008, 08:20 PM
Jörg-Volker Peetz
 
Default Clocksource tsc unstable (delta = 51799116882 ns)

What kind of hardware (processor, chip-set) are you using?
What is the result of the following commands?

cat /proc/cpuinfo
lspci -vv
cat /proc/interrupts

For example, my notebook with AMD Turion 64 processor on an ATI RS480 IXP SB400
chip-set running with acpi needs the kernel parameter 'nolapic' or the clock
would stop in CPU power state C3.

--
Regards,
Jörg-Volker.


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