What does these Apple System Log entries mean?

I have been reading the Apple System Log and the following entries have caught my attention. Can someone tell me what they mean?
2011-08-31 12:55:07 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 12:55:08 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 12:55:09 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 12:58:39 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 12:58:54 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 12:59:03 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 12:59:11 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 12:59:21 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 12:59:30 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 12:59:52 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 13:01:08 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 13:01:24 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 13:06:24 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 13:06:43 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 13:07:12 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 13:07:32 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 13:07:36 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 13:07:39 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 13:08:09 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 13:08:17 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 13:08:25 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 13:08:33 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 13:08:50 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 13:08:56 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 13:09:04 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 13:10:21 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 13:10:22 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 13:10:22 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 13:11:11 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 13:11:12 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 13:11:13 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 13:11:13 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 13:12:03 -0400 kernel[0]: IOSurface: buffer allocation size is zero
2011-08-31 13:12:07 -0400 kernel[0]: IOSurface: buffer allocation size is zero

I find:
kernel: IOSurface: buffer allocation size is zero
appears a lot when I can barely get control of my iMac 27, with constant whirring disk sounds and also often with Pref Sync Client (even if no sync taking place) and Safari Web Content also frequently.
Other alerts include:
kernel: IOSurface: buffer allocation size is zero
[0x0-0xda0da].com.apple.Safari: DVFreeThread - CFMachPortCreateWithPort hack = 0x182080, fPowerNotifyPort= 0x181910
Imran

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I'm sorry. I' having trouble getting this posted correctly this morning. It won't let me edit my original post to finish what I was trying to ask. I will try again here. I meant to post this:
One thing Apple really needs to do is make their pop up messages that appear when doing certain things more user friendly. Start by making them understandable to someone that didn't invent the dang iPhone, therefore, doesn't know everything about them Like they do! The one I got this morning has me completely stumped! I have no clue what it's saying or more importantly what I need to do? I went into iTunes and tried to download the free U2 album for the first time ever when this popped up:
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--Cancel initiated for Exchange Producer: <<66800621>> DbGateway Exchange*
I'm asking because I have problem. In two physical sources (physical databases) I have two tables TABLE_1 has 60k rows TABLE_2 has 1 row. Next step these tables are "Binary Join" by BI server
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T7101.TABLE_1 as c2
from
TABLE_1 T7101 /* TABLE_1_ALIAS */
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Last edited by zodmaner (2007-07-27 00:23:42)

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