Strace of the condition:
connect(27, {sa_family=AF_FILE, path="/home/domains/dispatcher-fcgi.sock"}, 62) = -1 ECONNREFUSED (Connection refused)
write(21, "2005-12-22 17:31:30: (mod_fastcg"..., 148) = -1 ENOSPC (No space left on device)
connect(24, {sa_family=AF_FILE, path="/home/domains/dispatcher-fcgi.sock"}, 62) = -1 ECONNREFUSED (Connection refused)
write(21, "2005-12-22 17:31:30: (mod_fastcg"..., 148) = -1 ENOSPC (No space left on device)
time(NULL) = 1135297890
poll([{fd=5, events=POLLIN}, {fd=6, events=POLLIN}, {fd=7, events=POLLIN}, {fd=8, events=POLLIN}, {fd=9, events=POLLIN}, {fd=-1}, {fd=-1}, {fd=22, events=POLLIN}, {fd=-1}, {fd=28, events=POLLOUT}, {fd=23, events=POLLIN}, {fd=-1}, {fd=-1}, {fd=-1}, {fd=-1}, {fd=-1}, {fd=-1}, {fd=-1}, {fd=-1}, {fd=27, events=POLLOUT, revents=POLLOUT|POLLHUP}, {fd=24, events=POLLOUT, revents=POLLOUT|POLLHUP}, {fd=-1}, {fd=-1}, {fd=-1}], 24, 1000) = 2
connect(27, {sa_family=AF_FILE, path="/home/domains/dispatcher-fcgi.sock"}, 62) = -1 ECONNREFUSED (Connection refused)
write(21, "2005-12-22 17:31:30: (mod_fastcg"..., 148) = -1 ENOSPC (No space left on device)
connect(24, {sa_family=AF_FILE, path="/home/domains/dispatcher-fcgi.sock"}, 62) = -1 ECONNREFUSED (Connection refused)
write(21, "2005-12-22 17:31:30: (mod_fastcg"..., 148) = -1 ENOSPC (No space left on device)
time(NULL) = 1135297890
poll([{fd=5, events=POLLIN}, {fd=6, events=POLLIN}, {fd=7, events=POLLIN}, {fd=8, events=POLLIN}, {fd=9, events=POLLIN}, {fd=-1}, {fd=-1}, {fd=22, events=POLLIN}, {fd=-1}, {fd=28, events=POLLOUT}, {fd=23, events=POLLIN}, {fd=-1}, {fd=-1}, {fd=-1}, {fd=-1}, {fd=-1}, {fd=-1}, {fd=-1}, {fd=-1}, {fd=27, events=POLLOUT, revents=POLLOUT|POLLHUP}, {fd=24, events=POLLOUT, revents=POLLOUT|POLLHUP}, {fd=-1}, {fd=-1}, {fd=-1}], 24, 1000) = 2
connect(27, {sa_family=AF_FILE, path="/home/domains/dispatcher-fcgi.sock"}, 62) = -1 ECONNREFUSED (Connection refused)
write(21, "2005-12-22 17:31:30: (mod_fastcg"..., 148) = -1 ENOSPC (No space left on device)