Re: Problem in kernel stack size (please help me).

[Denis Vlasenko <vda@ilport.com.ua>]

On Sunday 22 January 2006 14:09, Deepak Madhusudan wrote:
> Hi All,
>    I am writing a serialdriver in FED 3 (2.6.9 kernel) which acts as a
> serial interface between the codec and the application. We have
> written an Interrupt Service Routine to handle the interrupts of the
> hardware.The problem what I am facing is: by default FED3(2.6.9) comes
> with the following option enabled in its kernel configuration.
> 
> Processor  type and features ------------>
> [* ] 4GB kernel-space and 4GB user-space virtual memory support.
> 
> If this option is enabled my driver will  get hanged and again I have
> to reboot my system.when I checked the flow of my diver it isgoing up
> to ISR and when the interrupt occurs it is hanging. When I disabled
> the above option and  I recompiled the kernel my driver was able to
> work without any problem.
> 
[snip]
> 
> Since by default in FED3 and FED4 the specified options will come
> enabled I cannot ask the user of my driver to disable the above option
> and to recompile the kernel to use my driver.Please can you help me in
> this regard. I think the problem may be with the kernel stack size.
> please give me the suggestions. waiting for the reply.

Please send us the source of your driver
--
vda