any patch on its yet?

Tonight 4 jobs failed because of this issue.

sudo rm will just mean you need to re-clone everything from Gerrit every time the job runs, its a waste of time...

I will try to send a patch for this soon

can you help with the patch to fix mock cleanup? I'm not sure is familiar enough with standard ci and we need it fixed soon so node jobs can run

Could be the case, because libvirt is involved, which might also touch this directory, which could be setting different users.

What about sudo rm'ing the workspace?

I'm open to any fix for this issue.

Hmm... I can make an educated guess that what we're seeing here is that some files in the local git clone belong to the root user as opposed to the jenkins user.
This could happen if something from inside mock is running any git commands that write to the repo...

I guess what we could do is make mock_cleanup.sh ensure that no file are left in $WORKSPACE that do not belong the 'jenkins'

I think you have another ticket on it, need to find it, but as it continuous to happen on multiple jobs, please give it high priority,
We can do a more aggressive cleanup before git clone or shutdown problematic slaves if it happens only on specific ones, but let's address it now even with the cost of adding a few more seconds to runtime until we have a proper solution.