There might be a race issue when multi runqemu processess are
running at the same time:
| Traceback (most recent call last):
| File "/home/pokybuild/yocto-autobuilder/yocto-worker/nightly-ipk/build/scripts/runqemu", line 920, in <module>
| ret = main()
| File "/home/pokybuild/yocto-autobuilder/yocto-worker/nightly-ipk/build/scripts/runqemu", line 911, in main
| config.setup_network()
| File "/home/pokybuild/yocto-autobuilder/yocto-worker/nightly-ipk/build/scripts/runqemu", line 760, in setup_network
| self.setup_tap()
| File "/home/pokybuild/yocto-autobuilder/yocto-worker/nightly-ipk/build/scripts/runqemu", line 697, in setup_tap
| os.mkdir(lockdir)
| FileExistsError: [Errno 17] File exists: '/tmp/qemu-tap-locks'
Signed-off-by: Robert Yang <liezhi.yang@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
