interesting thing is we haven't seen this after the driver fixes done ~6 months ago in RHEV 3.2.4…but revcently (~2 months?) it started to appear again. so I wonder if this is not a regression introduced by some relatively recent change
I know this bug was created as duplicate but I don't know which CLOSED resolution is more suitable for it. The virtio-serial driver behavior was changed to return en error when writing to a port when no listener on the host side. The agent should know how to handle write errors and not crash. *** This bug has been marked as a duplicate of bug 1026474 ***