Hi, Anyone familiar with python-eventlet? I meet a problem when upgrade python-eventlet from "0.18.4-2" to "0.20.1-2", when do CentOS7.5 upgrade. Eventlet will hook/patch some basic python function, such as "call"/"check_call" from subprocess.py The issue is that, after upgrade to 0.20.1-2 version, these functions don't work as expected. For the pass log (with eventlet 0.18.4), below log is as expected: 2018-08-28 05:38:33.816 21142 INFO sysinv.agent.pci [-] Could not determine DPDK support for NIC (vendor 0x8086 device: 0x100e), defaulting to False But for the fail log(with eventlet 0.20.1), it seems the exception is not handled correctly: 2018-08-28 03:48:21.687 21302 ERROR sysinv.openstack.common.periodic_task [-] Error during AgentManager._agent_audit: Command '['query_pci_id', '-v 0x8086', '-d 0x100e']' returned non-zero exit status 1 Is there any code style change with new eventlet? Thanks. Pass log: 2018-08-28 05:38:33.477 21142 INFO sysinv.openstack.common.rpc.common [-] Connected to AMQP server on localhost:5672 2018-08-28 05:38:33.485 21142 INFO sysinv.agent.manager [-] Sysinv Agent audit running inv_get_and_report. 2018-08-28 05:38:33.552 21177 INFO migrate.versioning.api [-] 0 -> 1... 2018-08-28 05:38:33.750 21177 INFO migrate.versioning.api [-] done 2018-08-28 05:38:33.750 21177 INFO migrate.versioning.api [-] 1 -> 2... 2018-08-28 05:38:33.816 21142 INFO sysinv.agent.pci [-] Could not determine DPDK support for NIC (vendor 0x8086 device: 0x100e), defaulting to False 2018-08-28 05:38:34.032 21142 INFO sysinv.agent.pci [-] Could not determine DPDK support for NIC (vendor 0x8086 device: 0x100e), defaulting to False 2018-08-28 05:38:34.033 21142 WARNING sysinv.agent.pci [-] Enabling device enp0s8 to query link speed 2018-08-28 05:38:34.036 21142 WARNING sysinv.agent.pci [-] ATTR speed unknown for: enp0s8 (flags: 0x1002) 2018-08-28 05:38:34.036 21142 WARNING sysinv.agent.pci [-] Disabling device enp0s8 after querying link speed Fail log: 2018-08-28 03:48:21.373 21302 INFO sysinv.openstack.common.rpc.common [-] Connected to AMQP server on localhost:5672 2018-08-28 03:48:21.382 21302 INFO sysinv.agent.manager [-] Sysinv Agent audit running inv_get_and_report. 2018-08-28 03:48:21.463 21337 INFO migrate.versioning.api [-] 0 -> 1... 2018-08-28 03:48:21.631 21337 INFO migrate.versioning.api [-] done 2018-08-28 03:48:21.631 21337 INFO migrate.versioning.api [-] 1 -> 2... 2018-08-28 03:48:21.687 21302 ERROR sysinv.openstack.common.periodic_task [-] Error during AgentManager._agent_audit: Command '['query_pci_id', '-v 0x8086', '-d 0x100e']' returned non-zero exit status 1 2018-08-28 03:48:21.687 21302 TRACE sysinv.openstack.common.periodic_task Traceback (most recent call last): 2018-08-28 03:48:21.687 21302 TRACE sysinv.openstack.common.periodic_task File "/usr/lib64/python2.7/site-packages/sysinv/openstack/common/periodic_task.py", line 182, in run_periodic_tasks 2018-08-28 03:48:21.687 21302 TRACE sysinv.openstack.common.periodic_task task(self, context) 2018-08-28 03:48:21.687 21302 TRACE sysinv.openstack.common.periodic_task File "/usr/lib64/python2.7/site-packages/sysinv/agent/manager.py", line 1010, in _agent_audit 2018-08-28 03:48:21.687 21302 TRACE sysinv.openstack.common.periodic_task force_updates=None) 2018-08-28 03:48:21.687 21302 TRACE sysinv.openstack.common.periodic_task File "/usr/lib64/python2.7/site-packages/sysinv/agent/manager.py", line 1028, in agent_audit 2018-08-28 03:48:21.687 21302 TRACE sysinv.openstack.common.periodic_task self.ihost_inv_get_and_report(icontext) 2018-08-28 03:48:21.687 21302 TRACE sysinv.openstack.common.periodic_task File "/usr/lib64/python2.7/site-packages/sysinv/agent/manager.py", line 575, in ihost_inv_get_and_report 2018-08-28 03:48:21.687 21302 TRACE sysinv.openstack.common.periodic_task pci_net_array = self._ipci_operator.pci_get_net_attrs(inic.pciaddr) 2018-08-28 03:48:21.687 21302 TRACE sysinv.openstack.common.periodic_task File "/usr/lib64/python2.7/site-packages/sysinv/agent/pci.py", line 470, in pci_get_net_attrs 2018-08-28 03:48:21.687 21302 TRACE sysinv.openstack.common.periodic_task stdout=fnull, stderr=fnull) 2018-08-28 03:48:21.687 21302 TRACE sysinv.openstack.common.periodic_task File "/usr/lib64/python2.7/subprocess.py", line 542, in check_call 2018-08-28 03:48:21.687 21302 TRACE sysinv.openstack.common.periodic_task raise CalledProcessError(retcode, cmd) 2018-08-28 03:48:21.687 21302 TRACE sysinv.openstack.common.periodic_task CalledProcessError: Command '['query_pci_id', '-v 0x8086', '-d 0x100e']' returned non-zero exit status 1 2018-08-28 03:48:21.687 21302 TRACE sysinv.openstack.common.periodic_task 2018-08-28 03:48:21.929 21337 INFO migrate.versioning.api [-] done Best Regards Shuicheng