Network problems?
Feb 22 18:19:56 ShadowHP kernel: igb 0000:04:00.0 eth0: igb: eth0 NIC Link is Down
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Feb 22 18:20:52 ShadowHP kernel: igb 0000:04:00.0 eth0: igb: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: None
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Feb 22 22:12:25 ShadowHP kernel: igb 0000:04:00.0 eth0: igb: eth0 NIC Link is Down
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Feb 22 22:12:38 ShadowHP kernel: igb 0000:04:00.0 eth0: igb: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: None
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Feb 22 23:46:00 ShadowHP kernel: igb 0000:04:00.0 eth0: igb: eth0 NIC Link is Up 10 Mbps Full Duplex, Flow Control: RX
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Feb 22 23:46:08 ShadowHP kernel: igb 0000:04:00.0 eth0: igb: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
Also, you might want to figure out what this is all about
Feb 22 22:55:02 ShadowHP /usr/sbin/ipmiseld[5073]: could not find inband device
Feb 22 22:55:02 ShadowHP kernel: x86/PAT: ipmiseld:5074 map pfn expected mapping type uncached-minus for [mem 0xddfa0000-0xddfa0fff], got write-back
Really annoying, and its spamming your log continually