Re[2]: Bug in kernel code?

["Stephen C. Biggs" <s.biggs@softier.com>]

On 27 Aug 2002 at 18:23, David S. Miller wrote:

>    From: "Stephen C. Biggs" <s.biggs@softier.com>
>    Date: Tue, 27 Aug 2002 18:24:13 -0700
> 
>    On 27 Aug 2002 at 18:09, David S. Miller wrote:
>    
>    > And then your mail ends.... let us know when you've fixed
>    > your email client, this isn't rocket science :-)
>    > 
>    
>    What are you talking about "And then your mail ends..."  That's all I wanted to say...
>    
> No, I thought you were going to give an example of a huge number.
> :-)
> 
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Argh.  I meant to post THIS code:

#include <stdio.h>

#define PAGE_SHIFT 12

struct list_head {
	struct list_head *next, *prev;
};

int main(void)
{
	unsigned long order;
	unsigned long mempages = ~0;

#if PAGE_SHIFT < 13
	mempages >>= (13 - PAGE_SHIFT);
#endif
	mempages *= sizeof(struct list_head);

	printf("mempages: %lu\n", mempages);

	for (order = 0; ((1UL << order) << PAGE_SHIFT) < mempages; order++)
		;
	printf("%lu\n",order);
	return 0;
}