Re: Best way to debug an Intel Core i5 hang - likely graphics (possibly power) related

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Hi Again,

On 01/22/2012 04:40 AM, Mulyadi Santosa wrote:
> Hi again :)
> 
> On Sat, Jan 21, 2012 at 16:58, Graeme Russ <graeme.russ@xxxxxxxxx> wrote:
>> Tell me about it :( - I've been here before, just not with the Linux kernel
> 
> 
> At least I can tell you will get hiccup less :) Anyway, you do have
> data backup, right? Just in case it causes corrupt and you lose some
> of your data. Better safe than sorry...
> 
>> I got netconsole working and it took a while to crash, but it finally did
>> and guess what - No oops :(
> 
> Ok, no luck....how about serial console? same result? (I am not sure
> which one will be helpful in your case).
> 
> Just crossing my mind, is this bug also happen if you work strictly in
> text console i.e no X Window at all?
> 
>> I've added more (see attached config)
> 
>>From what I can see at a glance, you already enabled enough debugging
> features....so just keep it that way at least for now.
> 
>> Also, I am using a very recent tip of linus' branch (commit
>> ccb19d263fd1c9e34948e2158c53eacbff369344)
> 
> I think this is the way it will go, you would likely doing bisecting.
> Thing is, you first need to find kernel version that works well. You
> said you have trouble with 3.1.9-fc...how about 3.1.8 or below?
> 
>> Hmmm, any way to test this theory?
> 
> Let's say, switching cpu governor? What do you use now? ondemand? then
> try to switch to conservative. Or just lock the cpu frequency into
> certain number.

Look like the problem is Motherboard/CPU - I installed Windows 7 on a spare
HDD and replicated the fault. Also had it hang when using an nVidia G210
PCIe card

Regards,

Graeme

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