[oe-commits] [openembedded-core] 02/13: scripts/runqemu: Improve lockfile handling for python with close_fd=True
git at git.openembedded.org
git at git.openembedded.org
Wed Nov 28 22:24:15 UTC 2018
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rpurdie pushed a commit to branch master-next
in repository openembedded-core.
commit 41975aa977f7aa387851aa5e4f584db749a27736
Author: Richard Purdie <richard.purdie at linuxfoundation.org>
AuthorDate: Wed Nov 28 17:31:39 2018 +0000
scripts/runqemu: Improve lockfile handling for python with close_fd=True
On python versions with close_fds=True (python 3.2 onwards), the tap
device lockfile isn't passed to the child process.
Since this guards against use of an active interface, we really want this
here, so pass it in pass_fds. This means if the parent exits early, the child
still holds the lock, avoiding messages like:
runqemu - ERROR - Failed to run qemu: qemu-system-x86_64: could not configure /dev/net/tun (tap0): Device or resource busy
Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
scripts/runqemu | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/scripts/runqemu b/scripts/runqemu
index d25de42..f661892 100755
--- a/scripts/runqemu
+++ b/scripts/runqemu
@@ -1220,7 +1220,10 @@ class BaseConfig(object):
cmd = "%s %s" % (self.qemu_opt, kernel_opts)
cmds = shlex.split(cmd)
logger.info('Running %s\n' % cmd)
- process = subprocess.Popen(cmds, stderr=subprocess.PIPE)
+ pass_fds = []
+ if self.lock_descriptor:
+ pass_fds = [self.lock_descriptor.fileno()]
+ process = subprocess.Popen(cmds, stderr=subprocess.PIPE, pass_fds=pass_fds)
self.qemupid = process.pid
retcode = process.wait()
if retcode:
--
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