Further analysis indicates more a memory leak or issues of allocation due to
fragmentation.
Adding report...
** Tags added: apport-collected uec-images xenial
** Description changed:
I set up a nicely working OVS-DPDK with KVM Guests.
Then in a loop I
- add up to 512 ports
- test connectivity
- remove up to 512 ports
The effective error is like the issues discussed upstream about >1023 file
descriptors - OVS-DPDK crashes due to that.
A lot in the log afterwards are just follow on issues.
But the problem of this bug is that there has to be some sort of leak of file
descriptors (or something else depending on analysis).
Because one would expect that adding/removing the same amount of ports should
not exceed any "more" of a limit than in the first iteration.
Of 12 planned iterations in 2 of 2 tries I now always failed at iteration 6.
So I hope it is rather reproducible and will start debugging it.
+ ---
+ ApportVersion: 2.20.1-0ubuntu2
+ Architecture: amd64
+ DistroRelease: Ubuntu 16.04
+ Package: openvswitch-dpdk
+ PackageArchitecture: amd64
+ ProcEnviron:
+ TERM=xterm
+ PATH=(custom, no user)
+ XDG_RUNTIME_DIR=<set>
+ LANG=en_US.UTF-8
+ SHELL=/bin/bash
+ ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
+ Tags: xenial uec-images
+ Uname: Linux 4.4.0-18-generic x86_64
+ UpgradeStatus: No upgrade log present (probably fresh install)
+ UserGroups: kvm libvirtd
+ _MarkForUpload: True
+ modified.conffile..etc.dpdk.dpdk.conf: [modified]
+ modified.conffile..etc.dpdk.interfaces: [modified]
+ mtime.conffile..etc.dpdk.dpdk.conf: 2016-04-14T13:58:58.618313
+ mtime.conffile..etc.dpdk.interfaces: 2016-04-14T13:58:58.766313
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https://bugs.launchpad.net/bugs/1570466
Title:
Adding removing/ports leaks file descriptors
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