Same happened with me since recently on raring, was ok when installed lxde back on precise, not sure about quantal - was using E
Strace shows flood of poll([{fd=4, events=POLLIN}, {fd=3, events=POLLIN}, {fd=5, events=POLLIN|POLLPRI}, {fd=6, events=POLLIN|POLLPRI}, {fd=9, events=0}, {fd=12, events=POLLIN}, {fd=14, events=POLLIN}, {fd=8, events=POLLIN}], 8, 997) = 2 ([{fd=12, revents=POLLHUP}, {fd=14, revents=POLLHUP}]) recvfrom(3, 0xb10cf4, 4096, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=4, events=POLLIN}, {fd=3, events=POLLIN}, {fd=5, events=POLLIN|POLLPRI}, {fd=6, events=POLLIN|POLLPRI}, {fd=9, events=0}, {fd=12, events=POLLIN}, {fd=14, events=POLLIN}, {fd=8, events=POLLIN}], 8, 996) = 2 ([{fd=12, revents=POLLHUP}, {fd=14, revents=POLLHUP}]) recvfrom(3, 0xb10cf4, 4096, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable) poll([{fd=4, events=POLLIN}, {fd=3, events=POLLIN}, {fd=5, events=POLLIN|POLLPRI}, {fd=6, events=POLLIN|POLLPRI}, {fd=9, events=0}, {fd=12, events=POLLIN}, {fd=14, events=POLLIN}, {fd=8, events=POLLIN}], 8, 996) = 2 ([{fd=12, revents=POLLHUP}, {fd=14, revents=POLLHUP}]) recvfrom(3, 0xb10cf4, 4096, 0, 0, 0) = -1 EAGAIN (Resource temporarily unavailable) Here FD 3 is socket(PF_FILE, SOCK_STREAM|SOCK_CLOEXEC, 0) = 3 connect(3, {sa_family=AF_FILE, path=@"/tmp/.X11-unix/X0"}, 20) = 0 getpeername(3, {sa_family=AF_FILE, path=@"/tmp/.X11-unix/X0"}, [20]) = 0 getsockname(3, {sa_family=AF_FILE, NULL}, [2]) = 0 fcntl(3, F_GETFL) = 0x2 (flags O_RDWR) fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0 fcntl(3, F_SETFD, FD_CLOEXEC) = 0 why does it read 3 if poll returned 12 & 14? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/913273 Title: PCManFM consumes >90% CPU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pcmanfm/+bug/913273/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs