Re: [LTP] Char Limit issue on 2.6.29 kernels

[Tim Bird <tim.bird@am.sony.com>]

naresh kamboju wrote:
> Hi Mike,
> 
> On Fri, Jul 24, 2009 at 11:19 PM, Mike Frysinger<vapier@gentoo.org> wrote:
>> On Friday 24 July 2009 11:31:59 naresh kamboju wrote:
>>> I have come across with char Limit issue on 2.6.29 kernels.
>>>
>>>
>>> SIGFAULT:
>>>
>>> #define SIZE � � � � � �8053759
>>> char buf1[SIZE] ;
>>>
>>> NO SIGFAULT:
>>>
>>> #define SIZE � � � � � �8053758
>>> char buf1[SIZE] ;
>>>
>>> This SIGFAULT not observed on 2.6.23 kernels.
>> -ENOINFO
>>
>> post some actual code rather than saying "i declared a large buffer and things
>> crashed".
> 
> currently i am debugging this issue.
> i'll come up with more details.

Some more feedback...

It's SEGFAULT - short for "Segmentation Fault", not SIGFAULT.

Please include in your details at least the following:
 * what software this is in (is this declaration in the kernel?, a library, a
 user space program, etc.)
 * what operation is being performed when the SEGFAULT occurs.
 * what compiler you are using.
 * the code surrounding the operation when the fault occurs

If you can, make the smallest possible program that reproduces this error,
and send the complete source for that.
 -- Tim

=============================
Tim Bird
Architecture Group Chair, CE Linux Forum
Senior Staff Engineer, Sony Corporation of America
=============================


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