Hi, I've found an issue regarding root-lvm, at boot, lvm writes some files in /etc/lvmconf, /etc/lvmtab, /etc/lvmtab.d at boot in initrd and if lvm dont find enough space in ramdisk, it will not be able start up and never get root filesystem mounted... So you need to make a bigger ramdisk for initrd
It's a small summary of the problem case it's 4:00 am in the morning....
Finally, I go a job as a system administrator for a large company with RHEL servers... I've seen a few problems with performance, kernel ops and programs dying with no apparent reason, so I think there should news about fixes or workarounds about it...
I'm currently having issues with IBM SDD (Subsystem Device Drivers) probably due I've not read the complete manual... so expect news in the future
I'm having issues with root in lvm which is not recognized at kernel upgrade...
And many other minor things which could be interesting to digg inside in my free time
