Atsushi Nemoto writes: > Hi. I noticed that the 'jiffies' variable has 'wall_jiffies + 1' > value in most of time. I'm using MIPS platform but I think this is > same for other platforms. > > I suppose this is due to gcc does not know that jiffies_64 and jiffies > share same place. I can confirm that the same thing happens on powerpc, both 32-bit and 64-bit. The compiler loads up jiffies, jiffies_64 and wall_jiffies into registers before storing back the incremented value into jiffies_64 and then updating wall_jiffies. Thanks for finding that, it explains some other strange things that I have seen happen. Paul.
