Last ubuntu 10.04 updates brought defect e1000e kernel module on t61

Hardware: Lenovo T61
Kernel: Linux laptop 2.6.32-20-generic #30-Ubuntu SMP Mon Apr 12 15:19:41 UTC 2010 i686 GNU/Linux
and
Kernel: Linux noamik-laptop 2.6.32-21-generic #30-Ubuntu SMP Mon Apr 12 15:19:41 UTC 2010 i686 GNU/Linux
have both the following issue:

I did a system update today. Since than events/1 was consuming 30-60% CPU-Time constantly for hours and network via LAN did not work. The issue with events/1 can be solved by using "sudo rmmod e1000e".

If you do "sudo modprobe e1000e" modprobe uses 100% CPU for around a minute. After there is still no eth0 visible with "sudo ifconfig -a".

dmesg of modprobe e1000e:
[ 3582.609682] e1000e: Intel(R) PRO/1000 Network Driver - 1.0.2-k2
[ 3582.609685] e1000e: Copyright (c) 1999-2008 Intel Corporation.
[ 3582.609733] e1000e 0000:00:19.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20
[ 3582.609748] e1000e 0000:00:19.0: setting latency timer to 64
[ 3582.609906] e1000e 0000:00:19.0: irq 30 for MSI/MSI-X
[ 3661.207320] e1000e 0000:00:19.0: PCI INT A disabled

What additional information do you need to investigate?