[Bug 1648521] Regression: sssd sssd-2.0.0-4 slows down autofs - 'getautomntent_r: Invalid argument'

https://bugzilla.redhat.com/show_bug.cgi?id=1648521

--- Comment #28 from [e-mail] ---
Hello all,

I've got weird autofs/sssd errors as well.
I still have them with a centos8.2 ipa server using a fedora32 ipaclient.

I've build a reproducer in vagrant.

To use it, install vagrant on a fedora32 host.
Configure the host for kvm virtualization.

create an empty directory,
- mkdir vagrant

put the Vagrant script in that dir
cd to that dir

check the script if the DOMAIN_URI var is ok

give the command : vagrant up

wait for a long time for the script to finish

when the script is finished:
log in to the fedoraclient with vagrant:
vagrant ssh fedoraclient
become root:
sudo -i

check to see if the home directory is mounted:
mount
it will claim to be active
however a directory listing will show the home folder of the user test is
missing:
ls -als /home

restart autofs:
systemctl restart autofs

and now the home dir is mounted, list the home dir:
ls -als /home 
and you will see the test user home dir.

if for some reason the mount is working the first time, run the reproducer
script as root
/root/reproducer.sh
and try again after the reboot.

Cheers
Rob