2.6.31-rc5-git2 crash on a idle system.

[Sachin Sant]

Benjamin Herrenschmidt wrote:
> On Tue, 2009-08-04 at 17:57 +0530, Sachin Sant wrote:
>   
>> I have a power6 blade [IBM,7998-61X] running 2.6.31-rc5-git2
>> kernel (a33a052f19a21d727847391c8c1aff3fb221c472). After some
>> period of inactivity the machine drops into xmon with following
>> traces.
>>     
>
> Looks like code has been overwritten with data. Would be useful
> to try to track down when that happens.
>
> Ben.
2.6.31-rc5-git1 (4905f92ed752d49ebe9cce4fe78a4bc39e710523) works fine
on this box without any problem. So the problem was introduced between
2.6.31-rc5-git1 (4905f92ed752d49ebe9cce4fe78a4bc39e710523) and
2.6.31-rc5-git2 (a33a052f19a21d727847391c8c1aff3fb221c472).

Looking at the changelog all the changes are confined to
drivers/md/ directory ( probably following five commits ). I do have
all the CONFIG_MD* options enabled in my kernel.

449aad3e25358812c43afc60918c5ad3819488e7
70471dafe3390243c598a3165dfb86b8b8b3f4fe
3673f305faf1bc66ead751344f8262ace851ff44
3a981b03f38dc3b8a69b77cbc679e66c1318a44a
ac5e7113e74872928844d00085bd47c988f12728

I will try to find out the exact commit.

Thanks
-Sachin


-- 

---------------------------------
Sachin Sant
IBM Linux Technology Center
India Systems and Technology Labs
Bangalore, India
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