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[GrayMatter <230878@xxxxxxxxxxxxxxxxxx>]

We are experiencing the same issue.  Fresh install of Ubuntu 10.10LTS
with default apache2, mysql, php. I can say for certain that it's not a
hardware issue.  This is a virtual server running on an ESX host.  Let
me know if there are any other details I can pull to help with this
issue.  This is a production server and it crashes with this OOM about
once a week.

Apache2 Loaded Modules:
core mod_log_config mod_logio prefork http_core mod_so mod_alias mod_auth_basic mod_authn_file mod_authz_default mod_authz_groupfile mod_authz_host mod_authz_user mod_autoindex mod_cgi mod_deflate mod_dir mod_env mod_mime mod_negotiation mod_php5 mod_reqtimeout mod_rewrite mod_setenvif mod_status 

PHP Version: 5.3.3-1ubuntu9.5

The default also came with Suhosin Patch 0.9.9.1.

root@public-lamp:/var/log# mysql --version
mysql  Ver 14.14 Distrib 5.1.49, for debian-linux-gnu (x86_64) using readline 6.1

2.6.35-30-server #59-Ubuntu SMP 64-bit


Sep 21 12:31:32 public-lamp kernel: [1707807.719708] apache2 invoked oom-killer: gfp_mask=0x201da, order=0, oom_adj=0
Sep 21 12:31:32 public-lamp kernel: [1707807.797392] apache2 cpuset=/ mems_allowed=0
Sep 21 12:31:32 public-lamp kernel: [1707807.824987] Pid: 16345, comm: apache2 Not tainted 2.6.35-30-server #56-Ubuntu
Sep 21 12:31:32 public-lamp kernel: [1707807.824991] Call Trace:
Sep 21 12:31:32 public-lamp kernel: [1707807.877827]  [<ffffffff81105331>] dump_header+0x81/0xc0
Sep 21 12:31:32 public-lamp kernel: [1707807.995049]  [<ffffffff811053f1>] oom_kill_process+0x81/0x180
Sep 21 12:31:32 public-lamp kernel: [1707807.995053]  [<ffffffff81105928>] __out_of_memory+0x58/0xd0
Sep 21 12:31:32 public-lamp kernel: [1707807.995057]  [<ffffffff81105a26>] out_of_memory+0x86/0x1c0
Sep 21 12:31:32 public-lamp kernel: [1707807.995061]  [<ffffffff8110948e>] __alloc_pages_slowpath+0x58e/0x5a0
Sep 21 12:31:32 public-lamp kernel: [1707807.995065]  [<ffffffff8110960c>] __alloc_pages_nodemask+0x16c/0x1d0
Sep 21 12:31:32 public-lamp kernel: [1707807.995075]  [<ffffffff8113b9ca>] alloc_pages_current+0x9a/0x100
Sep 21 12:31:32 public-lamp kernel: [1707807.995079]  [<ffffffff81102a37>] __page_cache_alloc+0x87/0x90
Sep 21 12:31:32 public-lamp kernel: [1707807.995090]  [<ffffffff8110cc09>] __do_page_cache_readahead+0xc9/0x210
Sep 21 12:31:32 public-lamp kernel: [1707807.995095]  [<ffffffff8110cd71>] ra_submit+0x21/0x30
Sep 21 12:31:32 public-lamp kernel: [1707807.995098]  [<ffffffff8110d125>] ondemand_readahead+0x115/0x240
Sep 21 12:31:32 public-lamp kernel: [1707808.004712]  [<ffffffff81049219>] ? __wake_up_common+0x59/0x90
Sep 21 12:31:32 public-lamp kernel: [1707808.005747]  [<ffffffff8110d351>] page_cache_sync_readahead+0x31/0x50
Sep 21 12:31:32 public-lamp kernel: [1707808.005751]  [<ffffffff81104259>] filemap_fault+0x419/0x450
Sep 21 12:31:32 public-lamp kernel: [1707808.005756]  [<ffffffff8111f304>] __do_fault+0x54/0x560
Sep 21 12:31:32 public-lamp kernel: [1707808.005760]  [<ffffffff81122b69>] handle_mm_fault+0x1b9/0x440
Sep 21 12:31:32 public-lamp kernel: [1707808.012723]  [<ffffffff81170d20>] ? mntput_no_expire+0x30/0x110
Sep 21 12:31:32 public-lamp kernel: [1707808.022743]  [<ffffffff815a6a75>] do_page_fault+0x125/0x350
Sep 21 12:31:32 public-lamp kernel: [1707808.033163]  [<ffffffff815a35f5>] page_fault+0x25/0x30
Sep 21 12:31:32 public-lamp kernel: [1707808.033168] Mem-Info:
Sep 21 12:31:32 public-lamp kernel: [1707808.033171] Node 0 DMA per-cpu:
Sep 21 12:31:32 public-lamp kernel: [1707808.033174] CPU    0: hi:    0, btch:   1 usd:   0
Sep 21 12:31:32 public-lamp kernel: [1707808.033177] CPU    1: hi:    0, btch:   1 usd:   0
Sep 21 12:31:32 public-lamp kernel: [1707808.033179] Node 0 DMA32 per-cpu:
Sep 21 12:31:32 public-lamp kernel: [1707808.033182] CPU    0: hi:  186, btch:  31 usd:  32
Sep 21 12:31:32 public-lamp kernel: [1707808.033185] CPU    1: hi:  186, btch:  31 usd:   0
Sep 21 12:31:32 public-lamp kernel: [1707808.033187] Node 0 Normal per-cpu:
Sep 21 12:31:32 public-lamp kernel: [1707808.033189] CPU    0: hi:  186, btch:  31 usd:  18
Sep 21 12:31:32 public-lamp kernel: [1707808.033192] CPU    1: hi:  186, btch:  31 usd:   6
Sep 21 12:31:32 public-lamp kernel: [1707808.033246] active_anon:947260 inactive_anon:236889 isolated_anon:0
Sep 21 12:31:32 public-lamp kernel: [1707808.033248]  active_file:334 inactive_file:562 isolated_file:0
Sep 21 12:31:33 public-lamp kernel: [1707808.033249]  unevictable:0 dirty:0 writeback:65 unstable:0
Sep 21 12:31:33 public-lamp kernel: [1707808.033250]  free:9539 slab_reclaimable:2483 slab_unreclaimable:5104
Sep 21 12:31:33 public-lamp kernel: [1707808.033251]  mapped:322 shmem:10 pagetables:12402 bounce:0
Sep 21 12:31:33 public-lamp kernel: [1707808.033254] Node 0 DMA free:15836kB min:24kB low:28kB high:36kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15708kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:16kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
Sep 21 12:31:33 public-lamp kernel: [1707808.040340] lowmem_reserve[]: 0 3000 6030 6030
Sep 21 12:31:33 public-lamp kernel: [1707808.040346] Node 0 DMA32 free:17168kB min:4936kB low:6168kB high:7404kB active_anon:2399240kB inactive_anon:599996kB active_file:212kB inactive_file:688kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3072160kB mlocked:0kB dirty:0kB writeback:168kB mapped:156kB shmem:4kB slab_reclaimable:652kB slab_unreclaimable:5820kB kernel_stack:1240kB pagetables:25256kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:32 all_unreclaimable? no
Sep 21 12:31:33 public-lamp kernel: [1707808.040358] lowmem_reserve[]: 0 0 3030 3030
Sep 21 12:31:33 public-lamp kernel: [1707808.040983] Node 0 Normal free:5152kB min:4984kB low:6228kB high:7476kB active_anon:1389800kB inactive_anon:347560kB active_file:1124kB inactive_file:1708kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3102720kB mlocked:0kB dirty:0kB writeback:92kB mapped:1132kB shmem:36kB slab_reclaimable:9280kB slab_unreclaimable:14580kB kernel_stack:1224kB pagetables:24352kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:32 all_unreclaimable? no
Sep 21 12:31:33 public-lamp kernel: [1707808.040996] lowmem_reserve[]: 0 0 0 0
Sep 21 12:31:33 public-lamp kernel: [1707808.041001] Node 0 DMA: 3*4kB 0*8kB 1*16kB 2*32kB 2*64kB 0*128kB 1*256kB 0*512kB 1*1024kB 1*2048kB 3*4096kB = 15836kB
Sep 21 12:31:33 public-lamp kernel: [1707808.041021] Node 0 DMA32: 28*4kB 6*8kB 8*16kB 10*32kB 5*64kB 1*128kB 13*256kB 15*512kB 1*1024kB 0*2048kB 1*4096kB = 17184kB
Sep 21 12:31:33 public-lamp kernel: [1707808.041044] Node 0 Normal: 1236*4kB 14*8kB 6*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5152kB
Sep 21 12:31:33 public-lamp kernel: [1707808.041055] 40476 total pagecache pages
Sep 21 12:31:33 public-lamp kernel: [1707808.041057] 39519 pages in swap cache
Sep 21 12:31:33 public-lamp kernel: [1707808.041063] Swap cache stats: add 465967, delete 426448, find 30615/43793
Sep 21 12:31:33 public-lamp kernel: [1707808.041066] Free swap  = 40kB
Sep 21 12:31:33 public-lamp kernel: [1707808.041067] Total swap = 1331196kB
Sep 21 12:31:33 public-lamp kernel: [1707813.575934] 1572848 pages RAM
Sep 21 12:31:33 public-lamp kernel: [1707813.575938] 41073 pages reserved
Sep 21 12:31:33 public-lamp kernel: [1707813.575940] 79247 pages shared
Sep 21 12:31:33 public-lamp kernel: [1707813.575942] 1520465 pages non-shared

** Changed in: apache2 (Ubuntu)
       Status: Invalid => Incomplete

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https://bugs.launchpad.net/bugs/230878

Title:
  Apache 2 produces an OOM after 4 hours using

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