This bug may be fixed by upstream commit 8a1513b, which is in mainline as of the v4.3-rc2 kernel. That commit was also cc'd to stable. It is now in the Wily kernel, but not in Vivid or Trusty yet.
Can you test the latest Wily kernel and see if it fixes things? The Wily kernel can be downloaded from: https://launchpad.net/~ubuntu-security/+archive/ubuntu/ppa/+build/8272202
This bug may be fixed by upstream commit 8a1513b, which is in mainline as of the v4.3-rc2 kernel. That commit was also cc'd to stable. It is now in the Wily kernel, but not in Vivid or Trusty yet.
Can you test the latest Wily kernel and see if it fixes things? The Wily kernel can be downloaded from: /launchpad. net/~ubuntu- security/ +archive/ ubuntu/ ppa/+build/ 8272202
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