0x00007fe6f6b5a680 in __poll_nocancel () at ../sysdeps/unix/syscall-template.S:81
81 T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
#0 0x00007fe6f6b5a680 in __poll_nocancel () at ../sysdeps/unix/syscall-template.S:81
#1 0x00007fe6f795eea4 in poll (__timeout=-1, __nfds=2, __fds=0x7ffe4c0537b0) at /usr/include/bits/poll2.h:41
#2 read_data (g=0x7fe6f8e04bd0, connv=0x7fe6f8df9100, bufv=<optimized out>, len=4) at conn-socket.c:162
#3 0x00007fe6f7983f0c in recv_from_daemon (buf_rtn=0x7ffe4c053908, buf_rtn@entry=0x7ffe4c053658, size_rtn=0x7ffe4c0538e4, size_rtn@entry=0x7ffe4c053634, g=0x7fe6f8e04bd0, g@entry=0x7ffe4c053840) at proto.c:515
#4 guestfs_int_recv_from_daemon (g=g@entry=0x7fe6f8e04bd0, size_rtn=size_rtn@entry=0x7ffe4c0538e4, buf_rtn=buf_rtn@entry=0x7ffe4c053908) at proto.c:611
#5 0x00007fe6f797dae0 in launch_libvirt (g=0x7fe6f8e04bd0, datav=0x7fe6f8e04d90, libvirt_uri=<optimized out>) at launch-libvirt.c:573
#6 0x00007fe6f7973b2b in guestfs_impl_launch (g=g@entry=0x7fe6f8e04bd0) at launch.c:93
#7 0x00007fe6f790fb4d in guestfs_launch (g=0x7fe6f8e04bd0) at actions-3.c:142
#8 0x00007fe6f86e7eda in run_launch (cmd=<optimized out>, argc=<optimized out>, argv=<optimized out>) at cmds.c:13411
#9 0x00007fe6f870276c in issue_command (cmd=0x7fe6f8df5170 "run", argv=argv@entry=0x7ffe4c053f98, pipecmd=0x0, rc_exit_on_error_flag=<optimized out>) at fish.c:1181
#10 0x00007fe6f870334e in script (prompt=prompt@entry=1) at fish.c:733
#11 0x00007fe6f86c7262 in interactive () at fish.c:630
#12 main (argc=1, argv=0x7ffe4c0543f8) at fish.c:577
I tried export LIBGUESTFS_BACKEND=direct, and it is also stuck for more than 10 minutes, here is the call stack: