I’m having some serious stability issues with all of my ubuntu VMs on ESXi. After a period of several days, they have all locked up with a message about the mtp driver having read errors, or something along those lines. The short summary is that it looks like the scsi disk (emulated by ESXi, actually an iscsi LUN) becomes unavailable and lots of sense key errors are generated. The VM goes to 100% CPU and I have to reboot the entire ESXi server to recover. In the meantime, my SAN, Fedora, Solaris and Windows VMs never skip a beat. I’ve rebuilt the VM several times with different version of ubuntu in the 8.x line and different patch revisions, but have finally gave up. I’m back on Fedora and we’ll see if it remains stable.
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