The swap used reported by free is very high.
[root@rhel6 ~]# free -m
total used free shared buffers cached
Mem: 9892 9537 354 0 71 884
-/+ buffers/cache: 8581 1310
Swap: 767 1759218592 116869
Like, really high.
[root@bb14 blackboard]# free -g|grep Swap
Swap: 0 1717986906 114
Or is it?
[root@bb14 blackboard]# free -h |grep Swap
Swap: 767M 767M 114G
Even more strange, even if I disable swap the number still stays high.
[root@rhel6 ~]# swapoff -a
[root@rhel6 ~]# free -m
total used free shared buffers cached
Mem: 9892 9760 131 0 45 638
-/+ buffers/cache: 9076 815
Swap: 0 1759218592 116814
Things don't get any less confusing when checking meminfo, which shows swapfree higher than swaptotal.
[root@rhel6 ~]# cat /proc/meminfo|grep Swap
SwapCached: 0 kB
SwapTotal: 786428 kB
SwapFree: 120404008 kB
Obviously something is wonky and my first instinct is to reboot, but this is a production machine which means maintenance windows, etc, and I'm wondering if there's any way to find out what's wrong and possibly even fix it without downtime.