I am trying to understand exactly what these counters are and mean. The only place in the code I find them is in the .c file where they are defined as part of the swap_cache_info struct. I became interested in them after looking at sysrq output from a hung system. There was a line that reported "race 0+118". Usually it says "race 0+0". Any ideas on what this means either? Thanks, greg -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/