Em qual soquete a leitura do gnome-shell é contínua?

Question

strace mostra que o shell do GNOME está continuamente tentando ler de um soquete, que muitas vezes não está disponível (ou não contém dados para ler):

strace -p gnome-shell-pid -e trace=recvfrom

recvfrom(6, 0x1390a84, 4096, 0, 0, 0)   = -1 EAGAIN (Resource temporarily unavailable)
recvfrom(6, 0x1390a84, 4096, 0, 0, 0)   = -1 EAGAIN (Resource temporarily unavailable)
recvfrom(6, "3t
lrwx------. 1 me me 64 Jan  5 12:48 6 -> socket:[55696]
gnome-she  2250         hamid    6u     unix 0xffff880101064000       0t0      55696 socket
gdbus      2250  5801   hamid    6u     unix 0xffff880101064000       0t0      55696 socket
dconf      2250  5805   hamid    6u     unix 0xffff880101064000       0t0      55696 socket
threaded-  2250  5806   hamid    6u     unix 0xffff880101064000       0t0      55696 socket
JS         2250  5807   hamid    6u     unix 0xffff880101064000       0t0      55696 socket
JS         2250  5808   hamid    6u     unix 0xffff880101064000       0t0      55696 socket
gmain      2250  5818   hamid    6u     unix 0xffff880101064000       0t0      55696 socket
strace -p gnome-shell-pid -e trace=recvfrom

recvfrom(6, 0x1390a84, 4096, 0, 0, 0)   = -1 EAGAIN (Resource temporarily unavailable)
recvfrom(6, 0x1390a84, 4096, 0, 0, 0)   = -1 EAGAIN (Resource temporarily unavailable)
recvfrom(6, "3t
lrwx------. 1 me me 64 Jan  5 12:48 6 -> socket:[55696]
gnome-she  2250         hamid    6u     unix 0xffff880101064000       0t0      55696 socket
gdbus      2250  5801   hamid    6u     unix 0xffff880101064000       0t0      55696 socket
dconf      2250  5805   hamid    6u     unix 0xffff880101064000       0t0      55696 socket
threaded-  2250  5806   hamid    6u     unix 0xffff880101064000       0t0      55696 socket
JS         2250  5807   hamid    6u     unix 0xffff880101064000       0t0      55696 socket
JS         2250  5808   hamid    6u     unix 0xffff880101064000       0t0      55696 socket
gmain      2250  5818   hamid    6u     unix 0xffff880101064000       0t0      55696 socket
%pre%%pre%%pre%%pre%%pre%%pre%%pre%%pre%%pre%%pre%%pre%%pre%%pre%%pre%%pre%%pre%%pre%%pre%041472", 4096, 0, NULL, NULL) = 32
recvfrom(6, 0x1390a84, 4096, 0, 0, 0)   = -1 EAGAIN (Resource temporarily unavailable)
recvfrom(6, 0x1390a84, 4096, 0, 0, 0)   = -1 EAGAIN (Resource temporarily unavailable)
recvfrom(6, 0x1390a84, 4096, 0, 0, 0)   = -1 EAGAIN (Resource temporarily unavailable)
recvfrom(6, 0x1390a84, 4096, 0, 0, 0)   = -1 EAGAIN (Resource temporarily unavailable)
recvfrom(6, 0x1390a84, 4096, 0, 0, 0)   = -1 EAGAIN (Resource temporarily unavailable)
recvfrom(6, 0x1390a84, 4096, 0, 0, 0)   = -1 EAGAIN (Resource temporarily unavailable)
recvfrom(6, 0x1390a84, 4096, 0, 0, 0)   = -1 EAGAIN (Resource temporarily unavailable)
%pre%%pre%%pre%%pre%%pre%%pre%%pre%%pre%%pre%%pre%%pre%%pre%%pre%%pre%%pre%%pre%%pre%041472", 4096, 0, NULL, NULL) = 32
recvfrom(6, 0x1390a84, 4096, 0, 0, 0)   = -1 EAGAIN (Resource temporarily unavailable)
recvfrom(6, 0x1390a84, 4096, 0, 0, 0)   = -1 EAGAIN (Resource temporarily unavailable)
recvfrom(6, 0x1390a84, 4096, 0, 0, 0)   = -1 EAGAIN (Resource temporarily unavailable)
recvfrom(6, 0x1390a84, 4096, 0, 0, 0)   = -1 EAGAIN (Resource temporarily unavailable)
recvfrom(6, 0x1390a84, 4096, 0, 0, 0)   = -1 EAGAIN (Resource temporarily unavailable)
recvfrom(6, 0x1390a84, 4096, 0, 0, 0)   = -1 EAGAIN (Resource temporarily unavailable)
recvfrom(6, 0x1390a84, 4096, 0, 0, 0)   = -1 EAGAIN (Resource temporarily unavailable)

/proc/$pid/fd mostra que 6 é um descritor de arquivo para um soquete UNIX.

%pre%

Eu tentei obter informações sobre isso em /proc/$pid/net/unix , mas parece que esse arquivo não contém informações úteis para essa finalidade.

É possível saber qual processo está do outro lado dessa conexão?

Editar: saída de lsof | grep 55696 :

%pre%

Isso significa que esse soquete é usado por threads do processo de shell do GNOME. OK, mas alguém pode dizer quais dados são enviados e recebidos por esse soquete?