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Old 08-30-2008, 01:57 PM
gregor herrmann
 
Default Bug#496967: general: System completely blocks any input

On Sat, 30 Aug 2008 12:21:16 +0200, Frank Küster wrote:

>> You could run memtest86+
>> for at least 12 hours or until the first error.
> Can I download an iso image of a boot CD with memtest86+ somewhere?

I like systemrescuecd for that kind of stuff:
http://www.sysresccd.org/Main_Page

Cheers,
gregor
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Old 08-30-2008, 02:34 PM
Ben Hutchings
 
Default Bug#496967: general: System completely blocks any input

On Sat, 2008-08-30 at 14:26 +0200, Frank Küster wrote:
> Hi,
>
> Am 29.08.2008 um 23:44 schrieb J.A. Bezemer:
> >
> > Boot with "init=/bin/sh" and wait. Still hangs? -> kernel or hardware
> > problem.
>
> It didn't hang for nearly an hour, and now again with the first
> couple of scripts in /etc/rcS.d executed it is running for 20
> minutes. I'll give it 15 minutes after each change and then try the
> next couple of scripts.
>
> By the way, is there a possibility to stop a process in /bin/sh? I
> executed "while true; do uptime; sleep 10; done" and couldn't stop it
> with Ctrl+c. I invoked bash as a workaround.

That should work, but the interrupt key is part of the terminal settings
and bash may override them where sh does not. "stty sane" (why is the
terminal not sane by default?) should fix this.

It may also be useful to use "openvt" to create another virtual console
in case you run something that cannot be interrupted.

> > Open case and put a big fan in front.
> > Replace power supply.
> >
>
> It's a laptop, and the sensors didn't report anything suspicious. It
> hangs with battery only and with external power only, that doesn't
> matter.
>
> Thanks for the hints (strange how one is completely devoid of ideas
> when it's one's one machine...)

Have you tried switching back to the text console after X starts and
then waiting for the system to hang? If it is oops-ing you should get a
backtrace there, and you may also be able to use magic SysRq
<http://kernel.org/doc/Documentation/sysrq.txt> to get more information.

Ben.

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Ben Hutchings
It is easier to write an incorrect program than to understand a correct one.
 
Old 08-30-2008, 05:43 PM
Darren Salt
 
Default Bug#496967: general: System completely blocks any input

I demand that Lawrence Williams may or may not have written...

> On Friday, August 29, 2008 03:21:13 pm Frank Küster wrote:
>> I should have been more specific here. It's not only the input, it's the
>> output as well. For example, if aptitude is downloading packages in an
>> rxvt window, the percent count stops changing as well, the display is
>> also frozen.

> This sounds like a kernel panic to me. Anyone else have any thoughts?

If so, the computer may still be pingable and the various SysRq functions
should work (though, normally, only "reboot" and "power off" will have
obvious effects).

I suggest using netconsole to log to another computer.

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Old 08-31-2008, 09:11 PM
Daniel Burrows
 
Default Bug#496967: general: System completely blocks any input

On Sat, Aug 30, 2008 at 12:21:16PM +0200, Frank Küster <kurzfristig@kuesterei.ch> was heard to say:
> Is there any live system available which can handle lvm volumes? I think
> I even have some free disk space for an additional partition to install
> the live system on harddisk. But I cannot access it from Knoppix, and
> didn't find information on lvm in the Knoppix FAQ.

I haven't tried it, but I would expect that the Ubuntu live CD has
the necessary support. e.g., this article says it works if you install
the lvm user-space tools in the live system:

http://linuxwave.blogspot.com/2007/11/mounting-lvm-disk-using-ubuntu-livecd.html

Daniel


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Old 09-01-2008, 06:07 AM
Alexander Wirt
 
Default Bug#496967: general: System completely blocks any input

Frank Küster schrieb am Saturday, den 30. August 2008:

Hi,

*snip*
> Is there any live system available which can handle lvm volumes? I think
> I even have some free disk space for an additional partition to install
> the live system on harddisk. But I cannot access it from Knoppix, and
> didn't find information on lvm in the Knoppix FAQ.
grml [1] has support for lvm. Just start it via /etc/init.d/lvm start after
booting.

Alex

[1] http://www.grml.org/




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Old 09-01-2008, 07:04 PM
Frank Küster
 
Default Bug#496967: general: System completely blocks any input

reassign 496967 linux-2.6
forcemerge 479709 496967
thanks

Stepan Golosunov <stepan@golosunov.pp.ru> wrote:

> Looks similar to #479709, which happens with linux 2.6.25/2.6.26 but not
> 2.6.24 and seems to be provoked by chrony.

Bingo, thanks.

Although I personally feal the bug is super-duper-hyper-grave, I leave
the judgement to the linux maintainers.

Regards, Frank

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Debian Developer (TeXLive)
ADFC Miltenberg
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Old 09-03-2008, 06:43 AM
Gabor Gombas
 
Default Bug#496967: general: System completely blocks any input

On Mon, Sep 01, 2008 at 09:04:35PM +0200, Frank Küster wrote:

> Although I personally feal the bug is super-duper-hyper-grave, I leave
> the judgement to the linux maintainers.

FYI: I've tried 2.6.27-rc5 and it is up for more than 15 hours now.
That's far more than 2.6.25/26 ever managed on this box (2.6.24 is rock
solid).

Gabor

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