kmalloc before kmem_cache_init

Dave Hylands dhylands at gmail.com
Sun Jan 29 01:58:25 EST 2012


Hi Sukanto

On Sat, Jan 28, 2012 at 10:02 PM, Sukanto Ghosh
<sukanto.cse.iitb at gmail.com> wrote:
> I am kind of lost trying to figure out how can kmallocs work if they
> are called before kmem_cache_init
>
> (e.g. such a case occurs when in start_kernel() we call
> parse_early_param() (which in turn might call
> early_serial8250_setup() if earlycon= is used in kernel command-line)
> before mm_init()  (which later calls
> kmem_cache_init() )

I don't think that you're allowed to call kmalloc during early_setup.
I don't see where early_serial8250_setup calls kmalloc.

-- 
Dave Hylands
Shuswap, BC, Canada
http://www.davehylands.com



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