Comment 349 for bug 415023

There are some improvements in this area in the upstream 3.9-rc1 and 3.8.2 kernels - see https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c11ac2aa520b4777e5b063f8d8e99ce00337dcd9 and https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=da8506288fc4b2cc62d0ba477c2fe2a16f8891b0

While not directly related to this bug, you might also be interested in another patch which is also in the upstream 3.9-rc1 and 3.8.2 kernels - https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0de6575ad0a8f19ccf91d6e783b2a1bba0edb7a5