md/xfs issues

Issue

• Since our mass reboot from metldown patching (we were running a lot of different kernel), we experiencing some md/xfs issues.
• Some other users have seen the same issue on centos forum with a bunch of kernels : https://bugs.centos.org/view.php?id=13843
• We don't have a reproducer yet unfortunately.
• They are speaking about bugzilla BZ#1493585 being fixed in RHEL 7.5 beta
• Could we get details/access to see if we can find a reproducer and triggers it
• Any other pointer you may have would be useful.
• Machines get stuck and all new processes are stuck on the same backtrace .
• We couldn't get a sosreport when the machine is in this state.
• Our strategy is to try rhel 7.5 beta, but without a reproducer we are not sure we fixed it.