Bug#546291: gdm: erratically switches off computer without asking

[axst at users.sourceforge.net]

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Hi,

     Sorry for the delay.

On Mon, 14 Sep 2009, Josselin Mouette wrote:

> Le dimanche 13 septembre 2009 à 09:36 +0200, axst at users.sourceforge.net
> a écrit :
>> I don't believe the problem is X's fault because it does not occur in GDM's graphical
>> login screen even if I leave the computer in this state for days; neither can it be the
>> kernel's fault because it does not happen in console mode (i.e. without GDM and X). It
>> only occurs in a graphical user session.

I have narrowed it down: it only occurs in _my_ GDM session. If I create a new user and
login as this user, the problem does not occur.

> Actually it could be your CPU or RAM. Please run a full memtest86, at least.

The memory checked out alright. It would seem like a hradware problem, though --- if it
were not limited to my sessions. It has nothing to do with load, either --- the memory
test put the CPUs under quite some stress, and temperatures soared --- without causing any
problems. Then I did some video encoding with a lot of load as well as memory and harddisk
usage --- again without any problems.

> In all cases a hardware lockup cannot be caused solely by userland.

I do realise that. That is why I believe it must be some program with suid rights --- like
GDM.

Best wishes,

Axel
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