It's a kernel bug. It works fine with 2.6.31 but not with 2.6.32.
I tried to narrow it down using the daily builds: http://kernel.ubuntu.com/~kernel-ppa/mainline/daily/2009-09-12/ http://kernel.ubuntu.com/~kernel-ppa/mainline/daily/2009-10-01/
2.6.31 from 2009-09-12 works, 2.6.32-rc1 from 2009-10-01 doesn't. Unfortunately there don't seem to be builds in between.
It's a kernel bug. It works fine with 2.6.31 but not with 2.6.32.
I tried to narrow it down using the daily builds: kernel. ubuntu. com/~kernel- ppa/mainline/ daily/2009- 09-12/ kernel. ubuntu. com/~kernel- ppa/mainline/ daily/2009- 10-01/
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2.6.31 from 2009-09-12 works, 2.6.32-rc1 from 2009-10-01 doesn't. Unfortunately there don't seem to be builds in between.