I am experiencing the same problems since around FF 30 on Ubuntu 12.04 LTS and 14.04 LTS:
[...] poll([{fd=9, events=POLLIN}], 1, -1) = 1 ([{fd=9, revents=POLLIN}]) recvfrom(9, "\1 \0279\4\0\0\0\6\0\0\0\0\0\0\0\4\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 4096, 0, NULL, NULL) = 48 recvfrom(9, 0x7ff898704074, 4096, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable) recvfrom(9, 0x7ff898704074, 4096, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=9, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=9, revents=POLLOUT}]) writev(9, [{"\16\0\2\0\272\0\300\3", 8}, {NULL, 0}, {"", 0}], 3) = 8 poll([{fd=9, events=POLLIN}], 1, -1) = 1 ([{fd=9, revents=POLLIN}]) recvfrom(9, "\1\30\0309\0\0\0\0\272\2\0\0\0\0\0\0@\6\230\4\0\0\0\0\0\0\0\0\0\0\0\0", 4096, 0, NULL, NULL) = 32 recvfrom(9, 0x7ff898704074, 4096, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable) recvfrom(9, 0x7ff898704074, 4096, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=9, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=9, revents=POLLOUT}]) writev(9, [{"(\0\4\0\272\0\300\3\272\2\0\0\0\0\0\0", 16}, {NULL, 0}, {"", 0}], 3) = 16 poll([{fd=9, events=POLLIN}], 1, -1) = 1 ([{fd=9, revents=POLLIN}]) recvfrom(9, "\1\1\0319\0\0\0\0n\273\301\0\220\6\30\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 4096, 0, NULL, NULL) = 32 recvfrom(9, 0x7ff898704074, 4096, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable) recvfrom(9, 0x7ff898704074, 4096, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable) stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=2309, ...}) = 0 futex(0x7ff88cf438a0, FUTEX_WAIT_PRIVATE, 2, NULL
I am experiencing the same problems since around FF 30 on Ubuntu 12.04 LTS and 14.04 LTS:
[...] 0\0\0\6\ 0\0\0\0\ 0\0\0\4\ 0\0\0\0\ 0\0\0\0\ 0\0\0\0\ 0\0\0". .., 4096, 0, NULL, NULL) = 48 POLLIN| POLLOUT} ], 1, -1) = 1 ([{fd=9, revents=POLLOUT}]) 0\2\0\272\ 0\300\3" , 8}, {NULL, 0}, {"", 0}], 3) = 8 0309\0\ 0\0\0\272\ 2\0\0\0\ 0\0\0@\ 6\230\4\ 0\0\0\0\ 0\0\0\0\ 0\0\0\0" , 4096, 0, NULL, NULL) = 32 POLLIN| POLLOUT} ], 1, -1) = 1 ([{fd=9, revents=POLLOUT}]) 4\0\272\ 0\300\3\ 272\2\0\ 0\0\0\0\ 0", 16}, {NULL, 0}, {"", 0}], 3) = 16 0\0\0\0n\ 273\301\ 0\220\6\ 30\0\0\ 0\0\0\0\ 0\0\0\0\ 0\0\0\0\ 0\0\0", 4096, 0, NULL, NULL) = 32 etc/localtime" , {st_mode= S_IFREG| 0644, st_size=2309, ...}) = 0 438a0, FUTEX_WAIT_PRIVATE, 2, NULL
poll([{fd=9, events=POLLIN}], 1, -1) = 1 ([{fd=9, revents=POLLIN}])
recvfrom(9, "\1 \0279\4\
recvfrom(9, 0x7ff898704074, 4096, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable)
recvfrom(9, 0x7ff898704074, 4096, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=9, events=
writev(9, [{"\16\
poll([{fd=9, events=POLLIN}], 1, -1) = 1 ([{fd=9, revents=POLLIN}])
recvfrom(9, "\1\30\
recvfrom(9, 0x7ff898704074, 4096, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable)
recvfrom(9, 0x7ff898704074, 4096, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=9, events=
writev(9, [{"(\0\
poll([{fd=9, events=POLLIN}], 1, -1) = 1 ([{fd=9, revents=POLLIN}])
recvfrom(9, "\1\1\0319\
recvfrom(9, 0x7ff898704074, 4096, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable)
recvfrom(9, 0x7ff898704074, 4096, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable)
stat("/
futex(0x7ff88cf