dmesg for unexpected shutdown

[Colin Law]

2009/12/21 Thufir <hawat.thufir at gmail.com>:
> On Mon, 21 Dec 2009 13:48:32 +0000, Colin Law wrote:
>
>> 2009/12/21 Thufir <hawat.thufir at gmail.com>:
>>> After pressing the power button to turn on the pc, it spontaneously
>>> shutdown after just a moment.  I pressed the button again and it turned
>>> on fine.  Initially I thought perhaps the powersupply, or something
>>> similar, broke, but that doesn't fit since it's working fine now.
>>
>> When you say 'just a moment' do you mean less than a few seconds?  If so
>> then it would not have got past the bios startup so it would likely have
>> to be a hardware issue of some sort.  I have a PC where the power button
>> sometimes sticks in, so the effect on startup is the same as pressing
>> and holding the button, so it starts up then shuts down again.  Could
>> this be your problem.
>
>
> Yes, I should've instead written that it didn't seem to get past the
> BIOS.  A sticky button, or perhaps even a loose wire for the power button
> seem plausible if the dmesg gives no additional info.  That being said, I
> do now notice a message about disk failure:
>
>
> [    2.733611] eth0: SiS 900 PCI Fast Ethernet at 0xb000, IRQ 19,
> 00:16:ec:23:af:88
> [    2.751000] 8139too 0000:00:09.0: PCI INT A -> GSI 17 (level, low) ->
> IRQ 17
> [    2.752671] eth1: RealTek RTL8139 at 0xc800, 00:0d:88:37:fa:22, IRQ 17
> [    3.722802] PM: Starting manual resume from disk
> [    3.722813] PM: Resume from partition 8:5
> [    3.722815] PM: Checking hibernation image.
> [    3.723101] PM: Resume from disk failed.
> [    3.764944] kjournald starting.  Commit interval 5 seconds
> [    3.764974] EXT3-fs: mounted filesystem with writeback data mode.

I believe that is just saying that it failed to find a valid
hibernation image to resume from.  Assuming that you were not resuming
from hibernation then that is ok.

Colin