bug#6794: if there is a bug with uptime?

[马嘉跃]

Hi GNU
 
   I have a problem about uptime. I have a timer depend on the value of
uptime. I found the timer invalidation.
 
I want to know  if the uptime will  invalid or not,when some error happen.
If uptime have bug,please tell me how to avoid the bug. 
 
thangk you very much!
 
 
Regards
Xieweihua