> I couldn't find any references on how Linux handle such an odd asymetrical combination

Some IBM articles:

http://www.ibm.com/developerworks/power/library/pa-linuxps3-1/
http://www.ibm.com/developerworks/power/library/pa-linuxps3-2/
http://www.ibm.com/developerworks/power/library/pa-linuxps3-3/
http://www.ibm.com/developerworks/power/library/pa-linuxps3-4/
http://www.ibm.com/developerworks/power/library/pa-linuxps3-5/
http://www.ibm.com/developerworks/power/library/pa-linuxps3-6/
http://www.ibm.com/developerworks/power/library/pa-tipspu1/
http://www.ibm.com/developerworks/power/library/pa-tipspu2/
http://www.ibm.com/developerworks/power/library/pa-libspe2/
http://www.ibm.com/developerworks/power/library/pa-tacklecell1/
http://www.ibm.com/developerworks/power/library/pa-tacklecell2/
http://www.ibm.com/developerworks/power/library/pa-tacklecell3/
http://www.ibm.com/developerworks/power/library/pa-tacklecell4/
http://www.ibm.com/developerworks/power/library/pa-specode1/
http://www.ibm.com/developerworks/power/library/pa-specode2/
http://www.ibm.com/developerworks/power/library/pa-cmpware1/

Edit: Added some more.

[ Edited by Andreas_Wolf on 2011/1/5 17:26 ]