Public bug reported: Some Linux IP library functions make use of "ctype.CDLL" methods (create_netns, remove_netns). Those methods are called inside a privsep context; that means the function reference and the arguments are passed to a privileged context that will execute the method. "privsep" makes use of eventlet to implement multitasking. If the method executed returns the GIL, nothing guarantees that the eventlet executor will return it again to this task. Therefore we can see, in the CI, timeouts during the execution of those functions.
Log: https://81525168d755db537877-a5e4e29d4d6432c5c7202337ef0214bc.ssl.cf1.rackcdn.com/714731/1/gate /neutron-fullstack/8a9753b/testr_results.html Log snippet: http://paste.openstack.org/show/791531/ ** Affects: neutron Importance: Undecided Assignee: Rodolfo Alonso (rodolfo-alonso-hernandez) Status: New ** Changed in: neutron Assignee: (unassigned) => Rodolfo Alonso (rodolfo-alonso-hernandez) -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1870352 Title: "ctypes.CDLL" C functions could release the GIL during the execution call Status in neutron: New Bug description: Some Linux IP library functions make use of "ctype.CDLL" methods (create_netns, remove_netns). Those methods are called inside a privsep context; that means the function reference and the arguments are passed to a privileged context that will execute the method. "privsep" makes use of eventlet to implement multitasking. If the method executed returns the GIL, nothing guarantees that the eventlet executor will return it again to this task. Therefore we can see, in the CI, timeouts during the execution of those functions. Log: https://81525168d755db537877-a5e4e29d4d6432c5c7202337ef0214bc.ssl.cf1.rackcdn.com/714731/1/gate /neutron-fullstack/8a9753b/testr_results.html Log snippet: http://paste.openstack.org/show/791531/ To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1870352/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : [email protected] Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
