Re: [Xen-devel] repeatable time jump

[Adam Heath <doogie@xxxxxxxxxxxxx>]

yOn Fri, 1 Oct 2004, Ian Pratt wrote:

> --- 
> /usr/groups/xeno/BK/xeno.bk/linux-2.6.8.1-xen-sparse/arch/xen/i386/kernel/time.c
>     2004-10-01 16:01:03.000000000 +0100
> +++ arch/xen/i386/kernel/time.c 2004-10-01 16:10:06.000000000 +0100
> @@ -114,28 +114,34 @@
>
>  #define NS_PER_TICK (1000000000ULL/HZ)
>
> -#define HANDLE_USEC_UNDERFLOW(_tv) do {                \
> +#define HANDLE_USEC_UNDERFLOW(_tv) do {        int i=0;        \
>         while ((_tv).tv_usec < 0) {             \
>                 (_tv).tv_usec += USEC_PER_SEC;  \
>                 (_tv).tv_sec--;                 \
> -       }                                       \
> +       }if(i>100)printk(KERN_ALERT"USEC_UNDER %d\n",i);        \
>  } while (0)

How can i>100?  i is never incremented.


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