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I'm trying to figure out a good formula for finding out how much memory is available. I'm using the following formula currently: freeMem = MemFree + Buffers + Cached - Shmem . However, according to this formula my embedded system is losing memory. Now I'm wondering if I have a memory leak so I enabled kmemleak in the kernel. According to mpatrol , valgrind , and coverity I do not have any leaks in user space. Is there a leak in kernel space or is my formula off? Note that I do not have any swap for this device. MYBOX> cat /proc/meminfo MemTotal: 2073348 kB MemFree: 1388180 kB Buffers: 137016 kB Cached: 88772 kB SwapCached: 0 kB Active: 589124 kB Inactive: 44380 kB Active(anon): 410236 kB Inactive(anon): 1992 kB Active(file): 178888 kB Inactive(file): 42388 kB Unevictable: 0 kB Mlocked: 0 kB HighTotal: 1310716 kB HighFree: 811828 kB LowTotal: 762632 kB LowFree: 576352 kB SwapTotal: 0 kB SwapFree: 0 kB Dirty: 64 kB Writeback: 0 kB AnonPages: 407712 kB Mapped: 26140 kB Shmem: 4516 kB Slab: 40408 kB SReclaimable: 8320 kB SUnreclaim: 32088 kB KernelStack: 1480 kB PageTables: 1464 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 1036672 kB Committed_AS: 660508 kB VmallocTotal: 237344 kB VmallocUsed: 104556 kB VmallocChunk: 126296 kB

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