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Bug#771661: machine is completely unusable



On Tue, 2014-12-09 at 22:51 +0000, Toni Mueller wrote:
> 
> 
> Hi Ben,
> 
> On Tue, Dec 09, 2014 at 06:11:09PM +0000, Ben Hutchings wrote:
> > Also, this is assigned to linux-image-3.16-0.bpo.3-686-pae but the
> > screenshot you attached shows that package being newly installed.
> > Therefore it is not the kernel you were running at the time you first
> > saw this problem.
> > 
> > Did you subsequently boot into that kernel?
> 
> yes, the problem occurred with the 3.16-bpo kernel several times, basically
> each time I tried to run it, but so far never that early.
> Today the machine just locked up this way during or shortly after boot (I did
> not have a console for it when it happened).
> 
> Should I create another screen shot when the problem happens next time?

I don't think a screen shot will provide enough information.

> > We would need a more complete kernel log.  You could use an emulated
> > serial console to get this.
> 
> What exactly do you want? I mean, at this point I am almost confident to
> unfortunately reproduce the problem soonish.

1, Enable an emulated serial port for the VM, with output going to a
file.
2. Enable a serial console on the kernel command line.
3. Set sysctl kernel.printk=7 (i.e. send all non-debug logging to the
console).
4. Do whatever you have to do, to reproduce the hang.

Then send us the file with the console output.

> > How much memory does this VM have?  Does it have a swap file?
> 
> <memory unit='KiB'>1638400</memory>
> 
> It has a swap partition, but no separate swap file.

Sorry, I meant swap partition.  Anyway, it is not very small which was
one possibility I had thought of.

Ben.

-- 
Ben Hutchings
It is easier to change the specification to fit the program than vice versa.

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