[root@anaconda ~]# tail -f /var/log/messages
Oct 27 06:03:31 anaconda kernel: printk: 121358 messages suppressed.
Oct 27 06:03:31 anaconda kernel: 4gb seg fixup, process beagle-build-in (pid 4391), cs:ip 73:0811853f
Oct 27 06:03:36 anaconda kernel: printk: 106993 messages suppressed.
Oct 27 06:03:36 anaconda kernel: 4gb seg fixup, process beagle-build-in (pid 4391), cs:ip 73:0811853f
Oct 27 06:03:41 anaconda kernel: printk: 108351 messages suppressed.
Oct 27 06:03:41 anaconda kernel: 4gb seg fixup, process beagle-build-in (pid 4391), cs:ip 73:0811853f
Oct 27 06:03:46 anaconda kernel: printk: 136318 messages suppressed.
Oct 27 06:03:46 anaconda kernel: 4gb seg fixup, process beagle-build-in (pid 4391), cs:ip 73:0811853f
Oct 27 06:03:51 anaconda kernel: printk: 221012 messages suppressed.
Oct 27 06:03:51 anaconda kernel: 4gb seg fixup, process beagle-build-in (pid 4391), cs:ip 73:0811853f



any idea whats this all about?

Are you running a xen kernel?

yes looks like it is..

[root@anaconda ~]# uname -a
Linux anaconda 2.6.20-1.3002.fc6xen #1 SMP Mon Aug 13 14:21:09 EDT 2007 i686 i686 i386 GNU/Linux

Seems like a lot of people have similar messages with xen kernels
Try disabling or removing beagle - should 'fix' the message