On Fri, Mar 15, 2013 at 5:39 AM, Han <keepsim...@gmail.com> wrote:
> Hi,
>
> I am trying to build and to install a kernel module into UML.  The UML
> kernel is built from linux 2.6.2, 32-bit i386.  The rootfs is
> Debian-Squeeze-x86-root_fs.   I was able to build the kernel module
> successful. But when I tried to insmod, I got the kernel panic.
> After some debugging,  I found the kmalloc() during module init
> returns NULL, and it was dereferenced later, hence the panic.
>
> my question is:  is kmalloc() supported in UML (during kernel module
> init)?  Is there anything special I need to do?

kmalloc() and modules work in UML.
But your kernel so damn bloody old that it might contain various bugs.
AFAIK 2.6.2 almost older than a decade...

-- 
Thanks,
//richard

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