out of memory

if you see these following lines on your screen and your web server’s stop working, you might want to give “df -h” command on your shell and check whether one of your partition usage is up to 100%.

DMA free:12564kB min:16kB low:32kB high:48kB active:0kB inactive:0kB present:16384kB pages_scanned:427 all_unreclaimable? yes
protections[]: 0 0 0
Normal free:912kB min:928kB low:1856kB high:2784kB active:304036kB inactive:569464kB present:901120kB pages_scanned:2705765 all_unreclaimable? yes
protections[]: 0 0 0
HighMem free:112kB min:128kB low:256kB high:384kB active:65404kB inactive:52876kB present:130976kB pages_scanned:215457 all_unreclaimable? yes
protections[]: 0 0 0
DMA: 3*4kB 3*8kB 3*16kB 4*32kB 3*64kB 1*128kB 1*256kB 1*512kB 1*1024kB 1*2048kB
2*4096kB = 12564kB
Normal: 0*4kB 2*8kB 4*16kB 0*32kB 1*64kB 0*128kB 1*256kB 1*512kB 0*1024kB 0*2048kB 0*4096kB = 912kB
HighMem: 0*4kB 4*8kB 1*16kB 0*32kB 1*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 112kB
Swap cache: add 537645, delete 537644, find 29242/31013, race 0+1
0 bounce buffer pages
Free swap: 0kB
262120 pages of RAM
32744 pages of HIGHMEM
3476 reserved pages
9399 pages shared
1 pages swap cached
Out of Memory: Killed process 2280 (httpd).

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