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OpenLDAP 2.4.23 killed by linux oom-killer



  Hello, openldap-technical@ readers.

I'm running openSUSE 11.4 with openldap 2.4.23 and libdb-4_8
(berkeleydb) in vmware environment.
Last friday my slapd was killed by oom killer.  Seems that it consumed
all available memory.  It is
the first time i see that openldap was killed.

My database is rather small (15953 entries, 22 mb on disk id2entry.bdb
+ dn2id.bdb).

Could somebody point me to place where i can limit memory usage in openldap?

Here is part of log:
Jan 20 18:23:42 ldap kernel: [5636879.604870] slapd invoked
oom-killer: gfp_mask=0x201da, order=0, oom_adj=0, oom_score_adj=0
Jan 20 18:23:42 ldap kernel: [5636879.604894] slapd cpuset=/ mems_allowed=0
Jan 20 18:23:42 ldap kernel: [5636879.604905] Pid: 11984, comm: slapd
Not tainted 2.6.37.6-0.5-desktop #1
Jan 20 18:23:42 ldap kernel: [5636879.604907] Call Trace:
Jan 20 18:23:42 ldap kernel: [5636879.605070]  [<ffffffff810059b9>]
dump_trace+0x79/0x340
Jan 20 18:23:42 ldap kernel: [5636879.605144]  [<ffffffff81521752>]
dump_stack+0x69/0x6f
Jan 20 18:23:42 ldap kernel: [5636879.605207]  [<ffffffff810fd4e2>]
dump_header+0xa2/0x240
Jan 20 18:23:42 ldap kernel: [5636879.605234]  [<ffffffff810fdbe4>]
oom_kill_process+0xa4/0x1d0
Jan 20 18:23:42 ldap kernel: [5636879.605246]  [<ffffffff810fe03c>]
out_of_memory+0x10c/0x250
Jan 20 18:23:42 ldap kernel: [5636879.605251]  [<ffffffff811030bb>]
__alloc_pages_nodemask+0x6fb/0x710
Jan 20 18:23:42 ldap kernel: [5636879.605281]  [<ffffffff81139089>]
alloc_pages_current+0x99/0x110
Jan 20 18:23:42 ldap kernel: [5636879.605302]  [<ffffffff81105bb1>]
__do_page_cache_readahead+0xe1/0x230
Jan 20 18:23:42 ldap kernel: [5636879.605313]  [<ffffffff8110603c>]
ra_submit+0x1c/0x30
Jan 20 18:23:42 ldap kernel: [5636879.605317]  [<ffffffff810fc937>]
filemap_fault+0x487/0x4a0
Jan 20 18:23:42 ldap kernel: [5636879.605337]  [<ffffffff8111c202>]
__do_fault+0x52/0x560
Jan 20 18:23:42 ldap kernel: [5636879.605349]  [<ffffffff81120cd1>]
handle_mm_fault+0x1a1/0x410
Jan 20 18:23:42 ldap kernel: [5636879.605369]  [<ffffffff81527dd9>]
do_page_fault+0x1a9/0x520
Jan 20 18:23:42 ldap kernel: [5636879.605382]  [<ffffffff8152520f>]
page_fault+0x1f/0x30
Jan 20 18:23:42 ldap kernel: [5636879.605481]  [<00007ff68a86fffe>]
0x7ff68a86fffe
Jan 20 18:23:42 ldap kernel: [5636879.605483] Mem-Info:
Jan 20 18:23:42 ldap kernel: [5636879.605485] Node 0 DMA per-cpu:
Jan 20 18:23:42 ldap kernel: [5636879.605490] CPU    0: hi:    0,
btch:   1 usd:   0
Jan 20 18:23:42 ldap kernel: [5636879.605491] Node 0 DMA32 per-cpu:
Jan 20 18:23:42 ldap kernel: [5636879.605493] CPU    0: hi:  186,
btch:  31 usd:  31
Jan 20 18:23:42 ldap kernel: [5636879.605498] active_anon:55520
inactive_anon:55653 isolated_anon:0
Jan 20 18:23:42 ldap kernel: [5636879.605499]  active_file:75
inactive_file:114 isolated_file:96
Jan 20 18:23:42 ldap kernel: [5636879.605500]  unevictable:0 dirty:18
writeback:10 unstable:0
Jan 20 18:23:42 ldap kernel: [5636879.605500]  free:1190
slab_reclaimable:1125 slab_unreclaimable:3921
Jan 20 18:23:42 ldap kernel: [5636879.605501]  mapped:59 shmem:8
pagetables:4707 bounce:0
Jan 20 18:23:42 ldap kernel: [5636879.605503] Node 0 DMA free:2044kB
min:84kB low:104kB high:124kB active_anon:6072kB inactive_anon:6424kB
active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB
isolated(file):0kB present:15684kB mlocked:0kB dirty:4kB writeback:0kB
mapped:8kB shmem:0kB slab_reclaimable:28kB slab_unreclaimable:588kB
kernel_stack:360kB pagetables:268kB unstable:0kB bounce:0kB
writeback_tmp:0kB pages_scanned:1 all_unreclaimable? yes
Jan 20 18:23:42 ldap kernel: [5636879.605515] lowmem_reserve[]: 0 489 489 489
Jan 20 18:23:42 ldap kernel: [5636879.605518] Node 0 DMA32 free:2716kB
min:2784kB low:3480kB high:4176kB active_anon:216008kB
inactive_anon:216188kB active_file:300kB inactive_file:456kB
unevictable:0kB isolated(anon):0kB isolated(file):384kB
present:500896kB mlocked:0kB dirty:68kB writeback:40kB mapped:228kB
shmem:32kB slab_reclaimable:4472kB slab_unreclaimable:15096kB
kernel_stack:1032kB pagetables:18560kB unstable:0kB bounce:0kB
writeback_tmp:0kB pages_scanned:1154 all_unreclaimable? yes
Jan 20 18:23:42 ldap kernel: [5636879.605527] lowmem_reserve[]: 0 0 0 0
Jan 20 18:23:42 ldap kernel: [5636879.605529] Node 0 DMA: 77*4kB 3*8kB
1*16kB 1*32kB 0*64kB 1*128kB 0*256kB 1*512kB 1*1024kB 0*2048kB
0*4096kB = 2044kB
Jan 20 18:23:42 ldap kernel: [5636879.605542] Node 0 DMA32: 677*4kB
1*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB
0*4096kB = 2716kB
Jan 20 18:23:42 ldap kernel: [5636879.605550] 20332 total pagecache pages
Jan 20 18:23:42 ldap kernel: [5636879.605551] 20056 pages in swap cache
Jan 20 18:23:42 ldap kernel: [5636879.605553] Swap cache stats: add
681283, delete 661227, find 13544302/13638161
Jan 20 18:23:42 ldap kernel: [5636879.605555] Free swap  = 0kB
Jan 20 18:23:42 ldap kernel: [5636879.605556] Total swap = 262140kB
Jan 20 18:23:42 ldap kernel: [5636879.608604] 131056 pages RAM
Jan 20 18:23:42 ldap kernel: [5636879.608607] 5288 pages reserved
Jan 20 18:23:42 ldap kernel: [5636879.608609] 33759 pages shared
Jan 20 18:23:42 ldap kernel: [5636879.608610] 122516 pages non-shared
Jan 20 18:23:42 ldap kernel: [5636879.608612] [ pid ]   uid  tgid
total_vm      rss cpu oom_adj oom_score_adj name
Jan 20 18:23:42 ldap kernel: [5636879.608627] [  320]     0   320
5295        1   0     -17         -1000 udevd
Jan 20 18:23:42 ldap kernel: [5636879.608634] [  816]   100   816
6904        1   0       0             0 dbus-daemon
Jan 20 18:23:42 ldap kernel: [5636879.608638] [ 1902]     0  1902
60161     1038   0       0             0 radiusd
Jan 20 18:23:42 ldap kernel: [5636879.608641] [ 1949]     0  1949
5142       28   0       0             0 master
Jan 20 18:23:42 ldap kernel: [5636879.608644] [ 1971]    51  1971
5225       26   0       0             0 qmgr
Jan 20 18:23:42 ldap kernel: [5636879.608648] [ 2030]     0  2030
3871       21   0       0             0 cron
Jan 20 18:23:42 ldap kernel: [5636879.608651] [ 2034]     0  2034
4179       16   0       0             0 rpcbind
Jan 20 18:23:42 ldap kernel: [5636879.608654] [ 2044]     0  2044
20429       76   0       0             0 vmtoolsd
Jan 20 18:23:42 ldap kernel: [5636879.608658] [ 2045]     0  2045
992        0   0       0             0 startpar
Jan 20 18:23:42 ldap kernel: [5636879.608661] [ 2049]     0  2049
990        2   0       0             0 mingetty
Jan 20 18:23:42 ldap kernel: [5636879.608664] [ 2050]     0  2050
990        2   0       0             0 mingetty
Jan 20 18:23:42 ldap kernel: [5636879.608667] [ 2051]     0  2051
990        2   0       0             0 mingetty
Jan 20 18:23:42 ldap kernel: [5636879.608670] [ 2052]     0  2052
990        2   0       0             0 mingetty
Jan 20 18:23:42 ldap kernel: [5636879.608674] [ 2053]     0  2053
990        2   0       0             0 mingetty
Jan 20 18:23:42 ldap kernel: [5636879.608677] [ 2054]     0  2054
990        2   0       0             0 mingetty
Jan 20 18:23:42 ldap kernel: [5636879.608689] [24805]    74 24805
3944       32   0       0             0 ntpd
Jan 20 18:23:42 ldap kernel: [5636879.608692] [24855]     0 24855
11339       27   0     -17         -1000 sshd
Jan 20 18:23:42 ldap kernel: [5636879.608695] [28273]     0 28273
29976       90   0       0             0 rsyslogd
Jan 20 18:23:42 ldap kernel: [5636879.608699] [ 5665]   105  5665
4121        9   0       0             0 nrpe
Jan 20 18:23:42 ldap kernel: [5636879.608702] [29623]     0 29623
2844        0   0       0             0 mysqld_safe
Jan 20 18:23:42 ldap kernel: [5636879.608706] [29744]    60 29744
55304      999   0       0             0 mysqld
Jan 20 18:23:42 ldap kernel: [5636879.608709] [30102]     0 30102
5294        2   0     -17         -1000 udevd
Jan 20 18:23:42 ldap kernel: [5636879.608713] [30103]     0 30103
5294        1   0     -17         -1000 udevd
Jan 20 18:23:42 ldap kernel: [5636879.608717] [30788]     0 30788
4127        1   0       0             0 automount
Jan 20 18:23:42 ldap kernel: [5636879.608721] [31053]     0 31053
31139     6849   0       0             0 puppetd
Jan 20 18:23:42 ldap kernel: [5636879.608724] [10627]     0 10627
63600      828   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608727] [23310]    76 23310
300113    76212   0       0             0 slapd
Jan 20 18:23:42 ldap kernel: [5636879.608737] [32555]    51 32555
13882      166   0       0             0 pickup
Jan 20 18:23:42 ldap kernel: [5636879.608742] [ 1137]    30  1137
67563     1005   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608745] [ 1156]    30  1156
67563     1004   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608748] [ 1158]    30  1158
67563     1004   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608752] [ 1160]    30  1160
67563     1005   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608755] [ 1161]    30  1161
67563     1005   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608758] [ 1164]    30  1164
67563     1005   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608761] [ 1166]    30  1166
67563     1005   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608765] [ 1169]    30  1169
67563     1005   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608769] [ 1171]    30  1171
67563     1005   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608777] [ 1172]    30  1172
67563     1003   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608780] [ 1175]    30  1175
67563      999   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608786] [ 1181]    30  1181
67563      999   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608789] [ 1183]    30  1183
67563      999   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608792] [ 1188]    30  1188
67563      999   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608795] [ 1189]    30  1189
67563      999   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608798] [ 1190]    30  1190
67563      999   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608802] [ 1191]    30  1191
67563      999   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608805] [ 1192]    30  1192
67563      999   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608808] [ 1193]    30  1193
67563      999   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608811] [ 1194]    30  1194
67563      999   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608814] [ 1195]    30  1195
67563      999   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608822] [ 1196]    30  1196
67563     1001   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608825] [ 1197]    30  1197
67563      999   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608829] [ 1198]    30  1198
67563      999   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608832] [ 1199]    30  1199
67563      999   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608835] [ 1200]    30  1200
67563      999   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608838] [ 1201]    30  1201
67563      999   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608841] [ 1202]    30  1202
67563      999   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608844] [ 1203]    30  1203
67563      999   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608847] [ 1204]    30  1204
67563      999   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608851] [ 1205]    30  1205
67563      999   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608859] [ 1206]    30  1206
67563     1003   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608862] [ 1207]    30  1207
67563      999   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608865] [ 1208]    30  1208
57304     1069   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608868] [ 1209]    30  1209
67563      963   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608872] [ 1210]    30  1210
67563      962   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608875] [ 1211]    30  1211
67563      963   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608878] [ 1212]    30  1212
67563      963   0       0             0 httpd2-prefork
Jan 20 18:23:42 ldap kernel: [5636879.608906] Out of memory: Kill
process 23310 (slapd) score 685 or sacrifice child
Jan 20 18:23:42 ldap kernel: [5636879.608912] Killed process 23310
(slapd) total-vm:1200452kB, anon-rss:304848kB, file-rss:0kB
Jan 20 18:23:42 ldap kernel: [5636879.645240] httpd2-prefork invoked
oom-killer: gfp_mask=0x201da, order=0, oom_adj=0, oom_score_adj=0
Jan 20 18:23:42 ldap kernel: [5636879.645250] httpd2-prefork cpuset=/
mems_allowed=0
Jan 20 18:23:42 ldap kernel: [5636879.645254] Pid: 1206, comm:
httpd2-prefork Not tainted 2.6.37.6-0.5-desktop #1
Jan 20 18:23:42 ldap kernel: [5636879.645256] Call Trace:
Jan 20 18:23:42 ldap kernel: [5636879.645279]  [<ffffffff810059b9>]
dump_trace+0x79/0x340
Jan 20 18:23:42 ldap kernel: [5636879.645285]  [<ffffffff81521752>]
dump_stack+0x69/0x6f
Jan 20 18:23:42 ldap kernel: [5636879.645291]  [<ffffffff810fd4e2>]
dump_header+0xa2/0x240
Jan 20 18:23:42 ldap kernel: [5636879.645296]  [<ffffffff810fdbe4>]
oom_kill_process+0xa4/0x1d0
Jan 20 18:23:42 ldap kernel: [5636879.645301]  [<ffffffff810fe03c>]
out_of_memory+0x10c/0x250
Jan 20 18:23:42 ldap kernel: [5636879.645305]  [<ffffffff811030bb>]
__alloc_pages_nodemask+0x6fb/0x710