modem-manager hangs while starting up

[Harald Jung <support ecos de>]

Hi there,

i've compiled the current modem-manager version 0.5.2.0 under a hardened
gentoo.
The kernel version is 3.4.4
The modem-manager hangs while starting up

ThinClient,initial:root:/usr/lib $ modem-manager --debug
modem-manager[4195]: <info>  [1341328334.850996] [main.c:167] main():
ModemManager (version 0.5.2.0) starting...
modem-manager[4195]: <info>  [1341328334.853851] [mm-manager.c:120]
load_plugin(): Loaded plugin AnyData
modem-manager[4195]: <info>  [1341328334.854050] [mm-manager.c:120]
load_plugin(): Loaded plugin Generic
modem-manager[4195]: <info>  [1341328334.854316] [mm-manager.c:120]
load_plugin(): Loaded plugin Gobi
modem-manager[4195]: <info>  [1341328334.854539] [mm-manager.c:120]
load_plugin(): Loaded plugin Option High-Speed
modem-manager[4195]: <info>  [1341328334.854826] [mm-manager.c:120]
load_plugin(): Loaded plugin Huawei
modem-manager[4195]: <info>  [1341328334.855023] [mm-manager.c:120]
load_plugin(): Loaded plugin Longcheer
modem-manager[4195]: <info>  [1341328334.855242] [mm-manager.c:120]
load_plugin(): Loaded plugin Ericsson MBM
modem-manager[4195]: <info>  [1341328334.855430] [mm-manager.c:120]
load_plugin(): Loaded plugin MotoC
modem-manager[4195]: <info>  [1341328334.855700] [mm-manager.c:120]
load_plugin(): Loaded plugin Nokia
modem-manager[4195]: <info>  [1341328334.855975] [mm-manager.c:120]
load_plugin(): Loaded plugin Novatel
modem-manager[4195]: <info>  [1341328334.856185] [mm-manager.c:120]
load_plugin(): Loaded plugin Option
modem-manager[4195]: <info>  [1341328334.856507] [mm-manager.c:120]
load_plugin(): Loaded plugin Sierra
modem-manager[4195]: <info>  [1341328334.856715] [mm-manager.c:120]
load_plugin(): Loaded plugin SimTech
modem-manager[4195]: <info>  [1341328334.856995] [mm-manager.c:120]
load_plugin(): Loaded plugin ZTE

if i run a strace, the last lines are:
open("/dev/.udev/data/n4", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 21
fstat64(21, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb145c000
read(21, "", 4096)                      = 0
close(21)                               = 0
munmap(0xb145c000, 4096)                = 0
poll([{fd=5, events=POLLIN}, {fd=4, events=POLLIN}, {fd=7,
events=POLLIN}, {fd=8, events=POLLIN}, {fd=9, events=POLLIN}, {fd=10,
events=POLLIN}, {fd=11, events=POLLIN}, {fd=12, events=POLLIN}, {fd=13,
events=POLLIN}, {fd=14, events=POLLIN}, {fd=15, events=POLLIN}, {fd=16,
events=POLLIN}, {fd=17, events=POLLIN}, {fd=18, events=POLLIN}, {fd=19,
events=POLLIN}, {fd=20, events=POLLIN}, {fd=6, events=POLLIN}], 17, -1)
= 1 ([{fd=4, revents=POLLIN}])
read(5, 0xbfd6ca7c, 16)                 = -1 EAGAIN (Resource
temporarily unavailable)
write(5, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(4, {msg_name(0)=NULL, msg_iov(1)=[{"l\4\1\1\36\0\0\0\7\0\0\0\211
\0\0\0\1\1o\0\25\0\0\0/org/fre"..., 2048}], msg_controllen=0,
msg_flags=MSG_CMSG_CLOEXEC}, MSG_CMSG_CLOEXEC) = 806
write(5, "\1\0\0\0\0\0\0\0", 8)         = 8
write(5, "\1\0\0\0\0\0\0\0", 8)         = 8
write(5, "\1\0\0\0\0\0\0\0", 8)         = 8
write(5, "\1\0\0\0\0\0\0\0", 8)         = 8
recvmsg(4, 0xbfd6c838, MSG_CMSG_CLOEXEC) = -1 EAGAIN (Resource
temporarily unavailable)
write(5, "\1\0\0\0\0\0\0\0", 8)         = 8
poll([{fd=5, events=POLLIN}, {fd=7, events=POLLIN}, {fd=8,
events=POLLIN}, {fd=9, events=POLLIN}, {fd=10, events=POLLIN}, {fd=11,
events=POLLIN}, {fd=12, events=POLLIN}, {fd=13, events=POLLIN}, {fd=14,
events=POLLIN}, {fd=15, events=POLLIN}, {fd=16, events=POLLIN}, {fd=17,
events=POLLIN}, {fd=18, events=POLLIN}, {fd=19, events=POLLIN}, {fd=20,
events=POLLIN}, {fd=6, events=POLLIN}, {fd=4, events=POLLIN}], 17, 0) =
1 ([{fd=5, revents=POLLIN}])
read(5, "\6\0\0\0\0\0\0\0", 16)         = 8
poll([{fd=5, events=POLLIN}, {fd=7, events=POLLIN}, {fd=8,
events=POLLIN}, {fd=9, events=POLLIN}, {fd=10, events=POLLIN}, {fd=11,
events=POLLIN}, {fd=12, events=POLLIN}, {fd=13, events=POLLIN}, {fd=14,
events=POLLIN}, {fd=15, events=POLLIN}, {fd=16, events=POLLIN}, {fd=17,
events=POLLIN}, {fd=18, events=POLLIN}, {fd=19, events=POLLIN}, {fd=20,
events=POLLIN}, {fd=6, events=POLLIN}, {fd=4, events=POLLIN}], 17, 0) =
0 (Timeout)
read(5, 0xbfd6ca7c, 16)                 = -1 EAGAIN (Resource
temporarily unavailable)
poll([{fd=5, events=POLLIN}, {fd=7, events=POLLIN}, {fd=8,
events=POLLIN}, {fd=9, events=POLLIN}, {fd=10, events=POLLIN}, {fd=11,
events=POLLIN}, {fd=12, events=POLLIN}, {fd=13, events=POLLIN}, {fd=14,
events=POLLIN}, {fd=15, events=POLLIN}, {fd=16, events=POLLIN}, {fd=17,
events=POLLIN}, {fd=18, events=POLLIN}, {fd=19, events=POLLIN}, {fd=20,
events=POLLIN}, {fd=6, events=POLLIN}, {fd=4, events=POLLIN}], 17, 0) =
0 (Timeout)
read(5, 0xbfd6ca7c, 16)                 = -1 EAGAIN (Resource
temporarily unavailable)
poll([{fd=5, events=POLLIN}, {fd=7, events=POLLIN}, {fd=8,
events=POLLIN}, {fd=9, events=POLLIN}, {fd=10, events=POLLIN}, {fd=11,
events=POLLIN}, {fd=12, events=POLLIN}, {fd=13, events=POLLIN}, {fd=14,
events=POLLIN}, {fd=15, events=POLLIN}, {fd=16, events=POLLIN}, {fd=17,
events=POLLIN}, {fd=18, events=POLLIN}, {fd=19, events=POLLIN}, {fd=20,
events=POLLIN}, {fd=6, events=POLLIN}, {fd=4, events=POLLIN}], 17, 0) =
0 (Timeout)
read(5, 0xbfd6ca7c, 16)                 = -1 EAGAIN (Resource
temporarily unavailable)
poll([{fd=5, events=POLLIN}, {fd=7, events=POLLIN}, {fd=8,
events=POLLIN}, {fd=9, events=POLLIN}, {fd=10, events=POLLIN}, {fd=11,
events=POLLIN}, {fd=12, events=POLLIN}, {fd=13, events=POLLIN}, {fd=14,
events=POLLIN}, {fd=15, events=POLLIN}, {fd=16, events=POLLIN}, {fd=17,
events=POLLIN}, {fd=18, events=POLLIN}, {fd=19, events=POLLIN}, {fd=20,
events=POLLIN}, {fd=6, events=POLLIN}, {fd=4, events=POLLIN}], 17, -1



best regards 
Harald