Comment # 1 on bug 929224 from Christian Hueller

starting strace for pid shows this btw:


------------------------snip--------------------------------
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1312475,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}}, 512, 0) = 1
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1309131,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}, {EPOLLIN, {u32=1,
u64=1}}}, 512, 0) = 2
read(13, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1312475,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}}, 512, 0) = 1
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1309131,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}, {EPOLLIN, {u32=1,
u64=1}}}, 512, 0) = 2
read(13, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1312475,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}}, 512, 0) = 1
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1309131,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}, {EPOLLIN, {u32=1,
u64=1}}}, 512, 0) = 2
read(13, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1312475,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}}, 512, 0) = 1
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1309131,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}, {EPOLLIN, {u32=1,
u64=1}}}, 512, 0) = 2
read(13, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1312475,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}}, 512, 0) = 1
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1309131,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}, {EPOLLIN, {u32=1,
u64=1}}}, 512, 0) = 2
read(13, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1312475,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}}, 512, 0) = 1
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1309131,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}, {EPOLLIN, {u32=1,
u64=1}}}, 512, 0) = 2
read(13, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1312475,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}}, 512, 0) = 1
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1309131,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}, {EPOLLIN, {u32=1,
u64=1}}}, 512, 0) = 2
read(13, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1312475,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}}, 512, 0) = 1
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1309131,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}, {EPOLLIN, {u32=1,
u64=1}}}, 512, 0) = 2
read(13, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1312475,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}}, 512, 0) = 1
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1309131,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}, {EPOLLIN, {u32=1,
u64=1}}}, 512, 0) = 2
read(13, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1312475,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}}, 512, 0) = 1
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1309131,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}, {EPOLLIN, {u32=1,
u64=1}}}, 512, 0) = 2
read(13, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1312475,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}}, 512, 0) = 1
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1309131,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}, {EPOLLIN, {u32=1,
u64=1}}}, 512, 0) = 2
read(13, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1312475,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}}, 512, 0) = 1
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1309131,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}, {EPOLLIN, {u32=1,
u64=1}}}, 512, 0) = 2
read(13, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1312475,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}}, 512, 0) = 1
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1309131,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}, {EPOLLIN, {u32=1,
u64=1}}}, 512, 0) = 2
read(13, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1312475,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}}, 512, 0) = 1
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1309131,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}, {EPOLLIN, {u32=1,
u64=1}}}, 512, 0) = 2
read(13, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1312475,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}}, 512, 0) = 1
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1309131,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}, {EPOLLIN, {u32=1,
u64=1}}}, 512, 0) = 2
read(13, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1312475,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}}, 512, 0) = 1
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1309131,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}, {EPOLLIN, {u32=1,
u64=1}}}, 512, 0) = 2
read(13, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1312475,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}}, 512, 0) = 1
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1309131,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}, {EPOLLIN, {u32=1,
u64=1}}}, 512, 0) = 2
read(13, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1312475,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}}, 512, 0) = 1
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1309131,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}, {EPOLLIN, {u32=1,
u64=1}}}, 512, 0) = 2
read(13, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1312475,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}}, 512, 0) = 1
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1309131,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}, {EPOLLIN, {u32=1,
u64=1}}}, 512, 0) = 2
read(13, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1312475,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}}, 512, 0) = 1
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1309131,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}, {EPOLLIN, {u32=1,
u64=1}}}, 512, 0) = 2
read(13, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1312475,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}}, 512, 0) = 1
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1309131,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}, {EPOLLIN, {u32=1,
u64=1}}}, 512, 0) = 2
read(13, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1312475,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}}, 512, 0) = 1
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1309131,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}, {EPOLLIN, {u32=1,
u64=1}}}, 512, 0) = 2
read(13, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1312475,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}}, 512, 0) = 1
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
timerfd_settime(13, TFD_TIMER_ABSTIME, {it_interval={0, 0}, it_value={1309131,
250000000}}, NULL) = 0
epoll_wait(4, {{EPOLLOUT, {u32=369191632, u64=369191632}}, {EPOLLIN, {u32=1,
u64=1}}}, 512, 0) = 2
read(13, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(27, 0x7fffa4a60390, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) = -1
EAGAIN (Resource temporarily unavailable)
------------------------snip--------------------------------