I forgot asking one question. > > I have attached the output of strace. Somehow I suspect the ioctl in > > line 2510 to be the problem, but I wonder how aufs can have an effect on > > that TTY operation. > > I don't think it is related.
The last part of your strace, 4075 write(2, "man: ", 5) = 5 4075 write(2, "command exited with status 1: (c"..., 300) = 300 4075 write(2, "\n", 1) = 1 what was the message actually? J. R. Okajima