我感觉就是下面这个bug引起的
https://bugs.launchpad.net/ubuntu/+sour ... bug/286285
按照里面的描述安装intrepid-proposed源的内核版本就可以了,我更新到2.6.27-11之后就没有再碰到这个情况了。
***Important summary for those experiencing this bug***
Kernel versions where this bug is fixed:
1) 2.6.27-10 from intrepid-proposed
Kernel versions where this bug is NOT fixed (if you are running one of these, please upgrade to known working kernel):
1) 2.6.27-7 from intrepid
2) 2.6.27-9 from intrepid-updates and intrepid-security