Can't get DMA buffers error...

I get that error at various moments (couldn’t clearly determine an event that would trigger the crash) in the last compilation I made of Blender’s trunk. Does anyone have an Idea of what that means? Is this something that I can correct somehow.
Using Kubuntu Feisty Fawn and Scons.
Bi-proc Intel Xeon 2.4 GHz
512 RAM
Seagate ultra-SCSI