system freezes

[Xen]

compdoc schreef op 08-11-2017 15:06:
> On 11/08/2017 04:21 AM, Xen wrote:
> 
>> I have no clue what could be causing it this time
> 
> What you describe is often what happens when a power supply or hard
> drive begins to fail.
> 
> Cheap power supplies often fail after a year of continuous use, when
> the tops of small capacitors inside begin to bulge.

My system runs fine in Windows.

PSU is older but A-brand.

> And drives fail as well, but those are easier to check - you
> just have to read the SMART info stored within the drives. But if
> SMART errors were happening, your raid controller would be dropping
> them from the array.

I can't completely discount the raid but when plasma stops responding 
this can be indicative of write problems.

To files I mean.

So there can be some IO lock.

The only thing I can do to verify is run a script in the background that 
does vmstat -d on the root and cache device and logs it to a file.