As Eric W. Biederman said in the bugzilla, 3.6-rc1 mainline version works. I've testing our Ubuntu mainline build like 3.6-rc1 and 3.6-rc5, which all work fine. But for 3.5.3 mainline build, this test failed. Our latest Quantal kernel is based on 3.5.3 kernel.
So obviously this issue was fixed during 3.6-rc1, I'm going to do some investigation and backport those fixing patches.
As Eric W. Biederman said in the bugzilla, 3.6-rc1 mainline version works. I've testing our Ubuntu mainline build like 3.6-rc1 and 3.6-rc5, which all work fine. But for 3.5.3 mainline build, this test failed. Our latest Quantal kernel is based on 3.5.3 kernel.
So obviously this issue was fixed during 3.6-rc1, I'm going to do some investigation and backport those fixing patches.
-Bryan