[Cbe-oss-dev] unpredictable shutdowns

[Akos Marton]

Dear List,

You can see this mail-thread is so old, but the reason of the
unpredictable shutdowns are already known... this takes up new
questions...
In that building where the PS3s are situated, there was some
electricity fluctuation, because there are working some robot,
industrial machines, etc...  and it got the PS3's power supply to
incapable. These fluctuations are solved!
This situation is so sad, we wouldn't like to buy a new PS3, but we
would like to repair it. In our opinion there is an error with a short
time switching diode, this one:

STTH12S06FP fast diode
12A, 600V, 14 ns
TO220 FPAC packaging

Is there some possibility to buy this kind of diode?
If you have got another idea how to get this component, please let me know that!

Regards,
mAkos


On Thu, Jun 18, 2009 at 6:03 PM, Geoff Levand
<geoffrey.levand at am.sony.com> wrote:
> On 06/18/2009 05:26 AM, Akos Marton wrote:
>> Fedora Core 9 is installed on one of my SONY PS3s. This machine
>> shutdowns after unpredictable uptimes (after 4-7 days, but the last
>> was 12 hour).
>
> Swap the hard disk with a one of your 'good' ps3s and see if the
> behavior persists.
>
> I haven't got any idea why it's happening. It is
>> embarrassing, because I am working on these machines with remote
>> shell. This machine situated in a rack, but I think there isn't high
>> temperature, or may?
>
> The ps3's lv1 hypervisor can report thermal events to the guest OS.
> The linux kernel requests these events and will print a message in
> the kernel log: 'PS3 Thermal Alert Zone XXX'.  I have never seen
> one of these messages though.  See PS3_SM_EVENT_THERMAL_ALERT in
> the kernel source file drivers/ps3/ps3-sys-manager.c
>
> If the machine gets too hot the lv1 system manager should shut
> it down.  I have never seen happen this either though.
>
>> Have you got any idea, how could I debug or see a posted log (syslog,
>> kernel log, etc.) about this problem?
>
> Log in from another machine using ssh and do something like this:
>
>  tail -f /var/log/messages
>
> and/or
>
>  killall rsyslogd
>  cat /proc/kmsg
>
> -Geoff
>
>

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