On Fri, 4 Jul 2014 11:13:11 +0100 Mike Cardwell <li...@lists.grepular.com> wrote:
> I originally posted this two years ago (*) but received no response. I > just had a look and the problem still exists on the 3.14 kernel I am > currently running. > > I *think* I've uncovered a race condition bug in procfs. If I attempt to I don't think you have found a race condition. /proc/net/tcp is a symbolic link to /proc/self/net/tcp Your thread does an open of /proc/net/tcp, which is a symlink to /proc/self/net/tcp. If your thread id matches your process id then all will be as you expect, if not then all will be pear shaped. As far as I can see the code is doing precisely what it should do. It's just that the use of the symlink when namespaces were added produces some rather odd effects. It's certainly a bug. It used to work, it's sensible it should work. Added netdev Alan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
