Re: [uml-user] date modif in host freezes all my umls

[vincent-perrier]

If I put the conditionnal break in update_wall_time, 
file kernel/time/timekeeping.c, I get:

 
[SINGLE> 
[SINGLE> dmesg -c
update_wall_time
update_wall_time
update_wall_time
update_wall_time
update_wall_time
[SINGLE> 

and my uml machine apparently works again.

The conditionnal break follows:


       while (offset >= clock->cycle_interval) {
                /* accumulate one interval */
clownix_count++;
if (clownix_count > 1000)
{
printk("update_wall_time\n");
break;
}
                clock->xtime_nsec += clock->xtime_interval;
                clock->cycle_last += clock->cycle_interval;
                offset -= clock->cycle_interval;

                if (clock->xtime_nsec >= (u64)NSEC_PER_SEC <<
clock->shift) {
                        clock->xtime_nsec -= (u64)NSEC_PER_SEC <<
clock->shift;
                        xtime.tv_sec++;
                        second_overflow();
                }



On Fri, 2008-05-09 at 16:15 +0200, vincent-perrier wrote:
> Hello,
> When I do:
> "date", then I wait a few seconds, then "date --set" with the
> value I had in the first date, then the UML machine
> takes 100% of cpu.
> This occured 5 times out of 5 tries with a 2.6.25.1 kernel uml
> and 2.6.22.15 host.
> Regards
> 
> 
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