Comment 29 for bug 1540731

Trusty now has the bug because it does not have the revert of commit d45d44e:

Trusty only has the one bad commit:
d9ff970 af_unix: Revert 'lock_interruptible' in stream receive code

Wily has the bad commit and the revert to fix it:
26a432a Revert "af_unix: Revert 'lock_interruptible' in stream receive code"
b7a8f5d af_unix: Revert 'lock_interruptible' in stream receive code

Xenial has the bad commit and the revert to fix it:
d45d44e Revert "af_unix: Revert 'lock_interruptible' in stream receive code"
3822b5c af_unix: Revert 'lock_interruptible' in stream receive code

This may be fixed upstream by the following commit:
commit 1b92ee3d03af6643df395300ba7748f19ecdb0c5
Author: Rainer Weikusat <email address hidden>
Date: Mon Feb 8 18:47:19 2016 +0000

    af_unix: Don't set err in unix_stream_read_generic unless there was an error