Comment 0 for bug 1789659

In the SUSE Manager/Uyuni[1] project CIs we make use of Terraform[2], a tool to automate infrastructure deployments, together with terraform-provider-libvirt[3], a Terraform provider (plugin) that allow interaction with libvirt.

By default, this setup will issue several libvirt API calls concurrently in an hard-to-predict order, as demonstrated by logs that I am attaching.

In the "bad log" example, the following line appears:

error : virHashSearch:727 : Hash operation not allowed during iteration

According to analysis of a similar problem by Red Hat in an OpenStack scenario[4], this is has been fixed in upstream libvirt via commit 4d7384eb9ddef2008cb0cc165eb808f74bc83d6b [5].

I tested the patch and it applies cleanly to the 4.0.0 package shipping with Bionic and that successfully resolves this issue.

Please evaluate including this patch.

Thanks in advance

[1] http://uyuni-project.org/
[2] https://www.terraform.io/
[3] https://github.com/dmacvicar/terraform-provider-libvirt
[4] https://bugzilla.redhat.com/show_bug.cgi?id=1576464#c3
[5] https://github.com/libvirt/libvirt/commit/4d7384eb9ddef2008cb0cc165eb808f74bc83d6b.patch

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: libvirt-daemon 4.0.0-1ubuntu8.3
ProcVersionSignature: Ubuntu 4.15.0-33.36-generic 4.15.18
Uname: Linux 4.15.0-33-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Wed Aug 29 16:05:10 2018
InstallationDate: Installed on 2014-06-12 (1539 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
SourcePackage: libvirt
UpgradeStatus: Upgraded to bionic on 2018-05-02 (119 days ago)