[fabbione/kronosnet] 735329: libtap: don't close pipe fd twice

Branch: refs/heads/master Home: https://github.com/fabbione/kronosnet Commit: 7353292b0b81bc8bd485e1aea913a6ae9f1db780 https://github.com/fabbione/kronosnet/commit/7353292b0b81bc8bd485e1aea913a6… Author: Christine Caulfield <ccaulfie(a)redhat.com> Date: 2015-04-21 (Tue, 21 Apr 2015) Changed paths: M libtap/libtap.c Log Message: ----------- libtap: don't close pipe fd twice libtap was closing the parent's pipe() fd twice. Sometimes, between the first and second close, that fd gets reopened by the logging thread as PF_LOCAL, and used for logging. Then libtap wakes up again after the fork and closes the fd thinking it's its pipe fd. knet then opens it again as AF_INET for pinging. libqb logging then errors on a sendto() and closes it AGAIN, and reopens it as a PF_LOCAL logging fd. Ping then has a brain haemorrage next time it comes round to calling sendto(). Signed-off-by: Christine Caulfield <ccaulfie(a)redhat.com>