Sorry, I've attached wrong spec (although it is also triggers the bug). For the backtrace provided the server.vol was without io-threads, i.e.: -------- volume brick type storage/posix # POSIX FS translator option directory /mnt/hd # Export this directory end-volume volume server type protocol/server option transport-type tcp/server # For TCP/IP transport option client-volume-filename /etc/glusterfs/client.vol subvolumes brick option auth.ip.brick.allow 10.1.0.* # Allow access to "brick" volume end-volume ------- With best regards, Andrey