Re: Highmemory Problem with RHEL3 .... 2.4.21-5.ELsmp

[Zachary Amsden]

Fawad Lateef wrote:

> Hello,
>
> I m facing a problem in RHEL3 (2.4.21-5.ELsmp) kernel while using
> kmap_atomic on the pages reserved at the boot time !!!!
>
> At the boot time I reserved pages above 2GB for later use by my module
> ..... And when I was using those reserved pages through kmap_atomic
> system hangs; although kmap_atomic successfully returns me the virtual
> address but when I use that virtual address like in memcpy the system
> hangs .....
>
> I m unable to findout why it is happening in RHEL3 kernel !!!! Plz
> help me in this regard ....
>  

IIRC 2.4.21 has some highmem bugs that have since been fixed.  But, it 
sounds like you might be doing something quite unusual.  Code would 
definitely give people a better idea of what might be wrong.  You should 
definitely consider moving to 2.6 to get a better response.

Zach
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