On 10/31/23 22:00, Chuck Lever III via discuss wrote: > Hi- > > I recently made some changes to tmpfs/shmemfs and someone has reported > an occasional memory leak, possibly when using ovs_vswitch.service. Can > I get someone to have a look at this report and perhaps make some > suggestions (or shoot down my working theory) ?
Hi, Chuck. I looked at the bug, but the ovs-ctl script doesn't really do anything exceptional with tmpfs. It does use it though in a following way: 1. Create a couple of files with mktemp: https://github.com/openvswitch/ovs/blob/fdbf0bb2aed53e70b455eb1adcfda8d8278ea690/utilities/ovs-lib.in#L629 2. Write some commands into these files, e.g.: https://github.com/openvswitch/ovs/blob/fdbf0bb2aed53e70b455eb1adcfda8d8278ea690/utilities/ovs-lib.in#L588 3. Make them executable: https://github.com/openvswitch/ovs/blob/fdbf0bb2aed53e70b455eb1adcfda8d8278ea690/utilities/ovs-lib.in#L663 4. Execute: https://github.com/openvswitch/ovs/blob/fdbf0bb2aed53e70b455eb1adcfda8d8278ea690/utilities/ovs-lib.in#L617 5. Files are removed with 'rm -f' by an exit trap: https://github.com/openvswitch/ovs/blob/fdbf0bb2aed53e70b455eb1adcfda8d8278ea690/utilities/ovs-lib.in#L632 Also, ovsdb-server process is using the most basic version of a temporary file in its runtime, created by tmpfile(3). But this process is not even restarted by the ovs-vswitchd restart. HTH. Best regards, Ilya Maximets. _______________________________________________ discuss mailing list disc...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
