A fix has been found for that hang, here is info from Bug 251164
cebbert(a)redhat.com 2007-08-31 16:54 EST
Fix was found today:
http://lkml.org/lkml/2007/8/31/188
Not a final fix, just a hack, but this will be fixed properly soon.
pekane52(a)gmail.com 2007-08-31 17:30 EST
That patch fixes the hang on my Dell Inspiron 8600. Thanks!