Found temporary solution after a google search. artipc10.vub.ac.be/.../leap-second-causing-ksoftirqd-and-java-to-use-lots-of-cpu-time lkml.org/.../203 date -s "`date`" resolved it for me.
Hi,  Just downloaded and installed OMSA 7.1 on Dell R310 and Dell R510, both running RHEL6. As soon as OMSA processes were started the load average on system went high. Restarting services didn't help. Is this a known issue? I found this sissue happened with 6.5 version as well so I had stopped OMSA for a while but 7.1 came out in July-12 and I thought this issue might have been taken care of, but it doesn't look like that. Top command o/p top - 09:55:32 up 82 days, 20:49,  8 users,  load average: 8.43, 9.60, 7.33Tasks: 399 total,   4 running, 394 sleeping,   1 stopped,   0 zombieCpu0  :  5.0%us, 11.4%sy,  0.0%ni, 82.5%id,  0.3%wa,  0.0%hi,  0.7%si,  0.0%stCpu1  :  4.8%us, 11.3%sy,  0.0%ni, 83.1%id,  0.0%wa,  0.0%hi,  0.8%si,  0.0%stCpu2  :  3.0%us,  8.1%sy,  0.0%ni, 88.4%id,  0.0%wa,  0.0%hi,  0.5%si,  0.0%stCpu3  :  4.9%us, 11.6%sy,  0.0%ni, 82.8%id,  0.0%wa,  0.0%hi,  0.7%si,  0.0%stCpu4  :  4.5%us, 11.6%sy,  0.0%ni, 83.1%id,  0.0%wa,  0.0%hi,  0.7%si,  0.0%stCpu5  :  4.7%us, 11.8%sy,  0.0%ni, 82.7%id,  0.0%wa,  0.0%hi,  0.7%si,  0.0%stCpu6  :  4.0%us, 11.7%sy,  0.0%ni, 83.6%id,  0.0%wa,  0.0%hi,  0.7%si,  0.0%stCpu7  :  3.8%us, 11.6%sy,  0.0%ni, 83.9%id,  0.0%wa,  0.0%hi,  0.7%si,  0.0%stCpu8  :  3.8%us,  7.8%sy,  0.0%ni, 87.9%id,  0.0%wa,  0.0%hi,  0.6%si,  0.0%stCpu9  :  4.0%us, 11.9%sy,  0.0%ni, 83.4%id,  0.0%wa,  0.0%hi,  0.7%si,  0.0%stCpu10 :  4.0%us, 11.2%sy,  0.0%ni, 84.0%id,  0.0%wa,  0.0%hi,  0.8%si,  0.0%stCpu11 :  3.9%us, 11.5%sy,  0.0%ni, 83.8%id,  0.0%wa,  0.0%hi,  0.7%si,  0.0%stMem:   8044780k total,  7525304k used,   519476k free,   139536k buffersSwap: 10289144k total,  1022448k used,  9266696k free,  3001220k cached  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                                                                                          9540 root      20   0 3331m 154m  12m S 319.6  2.0  74:32.15 dsm_om_connsvcd                                                                                24604 oracle    20   0 4462m 245m  17m S 216.1  3.1   1380:11 java                                                                                           10181 oracle    20   0 1001m  40m  13m S 54.6  0.5  37954:07 emagent                                                                                             4 root      20   0     0    0    0 S 43.9  0.0   7615:46 ksoftirqd/0                                                                                        29 root      20   0     0    0    0 R 43.9  0.0   7593:48 ksoftirqd/6                                                                                        45 root      20   0     0    0    0 S 43.1  0.0   7695:01 ksoftirqd/10                                                                                       21 root      20   0     0    0    0 R 41.4  0.0   7677:32 ksoftirqd/4                                                                                        25 root      20   0     0    0    0 S 38.9  0.0   7781:04 ksoftirqd/5                                                                                        49 root      20   0     0    0    0 S 38.9  0.0   7788:30 ksoftirqd/11                                                                                       13 root      20   0     0    0    0 S 22.4  0.0   6370:47 ksoftirqd/2                                                                                        33 root      20   0     0    0    0 R 22.4  0.0   7621:18 ksoftirqd/7                                                                                         9 root      20   0     0    0    0 S 21.5  0.0   7623:38 ksoftirqd/1                                                                                        37 root      20   0     0    0    0 S 21.5  0.0   6077:26 ksoftirqd/8                                                                                        17 root      20   0     0    0    0 S 14.9  0.0   7794:55 ksoftirqd/3                                                                                        41 root      20   0     0    0    0 S 14.1  0.0   7818:57 ksoftirqd/9                                                                                     10911 root      20   0 15292 1484  936 S  1.7  0.0   0:02.35 top                                    omreport aboutProduct name : Dell OpenManage Server AdministratorVersion      : 7.1.0Copyright    : Copyright (C) Dell Inc. 1995-2012 All rights reserved.Company      : Dell Inc. Any idea?
OMSA 7.1 and high load average