[ovs-git] [openvswitch/ovs] 4d4dba: ovs-lib: Add timeout at ovs-check-dead-ifs.

[William Tu]

  Branch: refs/heads/branch-2.11
  Home:   https://github.com/openvswitch/ovs
  Commit: 4d4dba718a5d5286622f8b4faadce33b4cf6f26f
      https://github.com/openvswitch/ovs/commit/4d4dba718a5d5286622f8b4faadce33b4cf6f26f
  Author: William Tu <u9012063 at gmail.com>
  Date:   2019-08-26 (Mon, 26 Aug 2019)

  Changed paths:
    M utilities/ovs-lib.in

  Log Message:
  -----------
  ovs-lib: Add timeout at ovs-check-dead-ifs.

At SUSE12 SP3, we hit a case where ovs-check-dead-ifs tries to read
an entry in /proc/<pid>/fd/<some fd> but hangs forever.  The pid is
a qemu-system-x86_64 process and we suspect it's an issue related to
qemu, not ovs.  As a result, force-reload-kmod hangs and OVS bridge
never gets restarted. This patch adds a timeout of 5-seconds to
ovs-check-dead-ifs.

VMware-BZ: #2408059
Signed-off-by: William Tu <u9012063 at gmail.com>
Cc: Ashish Varma <ashishvarma.ovs at gmail.com>
Cc: Gurucharan Shetty <guru at ovn.org>
Signed-off-by: Gurucharan Shetty <guru at ovn.org>