Linux total memory is full but not showing any usage by any process but getting OOM ,how to troubleshoot this ?
free -m
total used free shared buffers cached
Mem: 26181 25991 189 0 0 19
-/+ buffers/cache: 25971 210
Swap: 20479 24 20455
--
MemTotal: 26809844 kB
MemFree: 194184 kB
Buffers: 852 kB
Cached: 13016 kB
SwapCached: 2764 kB
Active: 8684 kB
Inactive: 14024 kB
Active(anon): 8080 kB
Inactive(anon): 708 kB
Active(file): 604 kB
Inactive(file): 13316 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 20971512 kB
SwapFree: 20946568 kB
Dirty: 4 kB
Writeback: 0 kB
AnonPages: 8652 kB
Mapped: 2360 kB
Shmem: 0 kB
Slab: 46412 kB
SReclaimable: 4504 kB
SUnreclaim: 41908 kB
KernelStack: 2376 kB
PageTables: 2492 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 21252848 kB
Committed_AS: 170056 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 205192 kB
VmallocChunk: 34359487900 kB
HardwareCorrupted: 0 kB
AnonHugePages: 0 kB
HugePages_Total: 12816
HugePages_Free: 12816
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 75776 kB
DirectMap2M: 27187200 kB
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