text segment corruption - probable suspects?

[nayobix at nayobix.org]

On 01/23/2014 02:04 PM, Mulyadi Santosa wrote:
> On Tue, Jan 7, 2014 at 10:09 PM, Boyan Vladinov <nayobix at nayobix.org> wrote:
>> Hey guys,
>>
>> recently I experience .text segment corruption in Kernel space. Could
>> someone give some hints which can be the reason
>> for this text segment corruption, because as we know it is read-only?
> Could you share what evidence did you get so you can get conclusion
> there happen such corruption?
>
> IMHO, I suspect it is due RAM error...so it's not corruption coming
> from kernel image itself
>
I compared the addresses/instructions from the crash with these in 
vmlinux image and they were different in 1 or 2 bits. Yep, we also 
suspect RAM issues, but is it possible to be something other like DMA 
transfers?