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From "Devraj Mukherjee" <dev...@gmail.com>
Subject [users@httpd] Apache 2.0.52 CentOS memory leak issue
Date Mon, 02 Oct 2006 11:39:51 GMT
Hi everyone,

I have a box running CentOS 4.4 as an httpd server. I am running
version 2.0.52 of Apache as ditributed by CentOS. It seems to me that
httpd is eating up all the memory and thus my machiens eventually runs
out of memory and comes to a stand still.

Is this true? Has anyone had similar experiences? Here are some kernel
log messages

Oct  1 07:48:23 charlie kernel: Free pages:       13640kB (0kB HighMem)
Oct  1 07:48:23 charlie kernel: Active:10282 inactive:956850 dirty:0
writeback:0 unstable:0 free:3410 slab:9415 mapped:967735
pagetables:23309
Oct  1 07:48:23 charlie kernel: Node 0 DMA free:11528kB min:4kB
low:8kB high:12kB active:0kB inactive:0kB present:16384kB
pages_scanned:2977 a
ll_unreclaimable? yes
Oct  1 07:48:23 charlie kernel: protections[]: 0 0 0
Oct  1 07:48:23 charlie kernel: Node 0 Normal free:2112kB min:2160kB
low:4320kB high:6480kB active:42928kB inactive:3825600kB
present:4702208k
B pages_scanned:5985945 all_unreclaimable? yes
Oct  1 07:48:23 charlie kernel: protections[]: 0 0 0
Oct  1 07:48:23 charlie kernel: Node 0 HighMem free:0kB min:128kB
low:256kB high:384kB active:0kB inactive:0kB present:0kB
pages_scanned:0 all
_unreclaimable? no
Oct  1 07:48:23 charlie kernel: protections[]: 0 0 0
Oct  1 07:48:23 charlie kernel: Node 0 DMA: 0*4kB 1*8kB 0*16kB 2*32kB
3*64kB 0*128kB 2*256kB 1*512kB 0*1024kB 1*2048kB 2*4096kB = 11528kB
Oct  1 07:48:28 charlie kernel: Node 0 Normal: 12*4kB 232*8kB 13*16kB
0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB =
2112k
B
Oct  1 07:48:28 charlie kernel: Node 0 HighMem: empty
Oct  1 07:48:28 charlie kernel: Swap cache: add 2902771, delete
2902761, find 906274/1018789, race 0+20
Oct  1 07:48:29 charlie kernel: Free swap:            0kB
Oct  1 07:48:29 charlie kernel: 1179648 pages of RAM
Oct  1 07:49:47 charlie kernel: 168514 reserved pages
Oct  1 07:49:47 charlie kernel: 664563 pages shared
Oct  1 07:49:47 charlie kernel: 10 pages swap cached
Oct  1 07:49:47 charlie kernel: Out of Memory: Killed process 1996 (httpd).
Oct  1 07:49:47 charlie kernel: oom-killer: gfp_mask=0x1d2
Oct  1 07:49:47 charlie kernel: Mem-info:
Oct  1 07:49:48 charlie kernel: Node 0 DMA per-cpu:
Oct  1 07:49:48 charlie kernel: cpu 0 hot: low 2, high 6, batch 1
Oct  1 07:49:48 charlie kernel: cpu 0 cold: low 0, high 2, batch 1
Oct  1 07:49:48 charlie kernel: cpu 1 hot: low 2, high 6, batch 1
Oct  1 07:49:48 charlie kernel: cpu 1 cold: low 0, high 2, batch 1
Oct  1 07:49:48 charlie kernel: cpu 2 hot: low 2, high 6, batch 1
Oct  1 07:49:48 charlie kernel: cpu 2 cold: low 0, high 2, batch 1
Oct  1 07:49:48 charlie kernel: cpu 3 hot: low 2, high 6, batch 1
Oct  1 07:49:48 charlie kernel: cpu 3 cold: low 0, high 2, batch 1
Oct  1 07:49:48 charlie kernel: Node 0 Normal per-cpu:
Oct  1 07:49:48 charlie kernel: cpu 0 hot: low 32, high 96, batch 16
Oct  1 07:49:48 charlie kernel: cpu 0 cold: low 0, high 32, batch 16
Oct  1 07:49:48 charlie kernel: cpu 1 hot: low 32, high 96, batch 16
Oct  1 07:49:48 charlie kernel: cpu 1 cold: low 0, high 32, batch 16
Oct  1 07:49:48 charlie kernel: cpu 2 hot: low 32, high 96, batch 16
Oct  1 07:49:48 charlie kernel: cpu 2 cold: low 0, high 32, batch 16
Oct  1 07:49:48 charlie kernel: cpu 3 hot: low 32, high 96, batch 16
Oct  1 07:49:48 charlie kernel: cpu 3 cold: low 0, high 32, batch 16
Oct  1 07:49:48 charlie kernel: Node 0 HighMem per-cpu: empty
Oct  1 07:49:48 charlie kernel:
Oct  1 07:49:48 charlie kernel: Free pages:       13664kB (0kB HighMem)
Oct  1 07:49:48 charlie kernel: Active:133982 inactive:832635 dirty:0
writeback:0 unstable:0 free:3416 slab:9418 mapped:967370
pagetables:2324
6
Oct  1 07:49:48 charlie kernel: Node 0 DMA free:11528kB min:4kB
low:8kB high:12kB active:0kB inactive:0kB present:16384kB
pages_scanned:2985 a
ll_unreclaimable? yes
Oct  1 07:49:48 charlie kernel: protections[]: 0 0 0
Oct  1 07:49:48 charlie kernel: Node 0 Normal free:2136kB min:2160kB
low:4320kB high:6480kB active:535160kB inactive:3331308kB
present:4702208
kB pages_scanned:4548753 all_unreclaimable? yes
Oct  1 07:49:48 charlie kernel: protections[]: 0 0 0


-- 
"I never look back darling, it distracts from the now", Edna Mode (The
Incredibles)

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