Description of problem: The server running service of http/ftp in two week ago. After system hang, the log files shows kernel out of memory. Is it kernel problem? Can I upgrade latest kernel or other for fix memroy issue? kernel: Mem-info: kernel: Zone:DMA freepages: 2904 min: 0 low: 0 high: 0 kernel: Zone:Normal freepages: 1281 min: 1279 low: 4544 high: 6304 kernel: Zone:HighMem freepages: 254 min: 255 low: 16894 high: 25341 kernel: Free pages: 4439 ( 254 HighMem) kernel: ( Active: 1171934/21059, inactive_laundry: 0, inactive_clean: 0, free: 4439 ) kernel: aa:0 ac:0 id:0 il:0 ic:0 fr:2904 kernel: aa:181027 ac:1816 id:4194 il:0 ic:0 fr:1281 kernel: aa:979238 ac:9853 id:16865 il:1 ic:0 fr:254 kernel: 0*4kB 0*8kB 0*16kB 1*32kB 3*64kB 1*128kB 2*256kB 1*512kB 0*1024kB 1*2048kB 2*4096kB = 11616kB) kernel: 53*4kB 66*8kB 34*16kB 22*32kB 11*64kB 1*128kB 1*256kB 0*512kB 0*1024kB 1*2048kB 0*4096kB = 5124kB) kernel: 8*4kB 1*8kB 1*16kB 0*32kB 1*64kB 1*128kB 1*256kB 1*512kB 0*1024kB 0*2048kB 0*4096kB = 1016kB) kernel: Swap cache: add 1288896, delete 1288188, find 69773595/70209507, race 0+2 kernel: 9095 pages of slabcache kernel: 1416 pages of kernel stacks kernel: 0 lowmem pagetables, 8154 highmem pagetables kernel: Free swap: 0kB kernel: 1310719 pages of RAM kernel: 1015801 pages of HIGHMEM kernel: 85979 reserved pages kernel: 246601 pages shared kernel: 709 pages swap cached kernel: Out of Memory: Killed process 1519 (java). kernel: Out of Memory: Killed process 1655 (java). kernel: Out of Memory: Killed process 1656 (java).
MF Lee, the problem here is that you have exhausted all of the swap space and over-committed physical memory. At this point the kernel is backed into a corner and has no choice but to kill processes in an attempt to recover physical memory and swap space. Please add more swap space to your system and the problem will go away. Thanks, Larry Woodman