[manta] crash when initializing media-hub (pulse pa_mutex_free)

phablet@ubuntu-phablet:~$ system-image-cli -i
current build number: 57
device name: manta
channel: ubuntu-touch/vivid-proposed
last update: 2015-01-06 22:02:08
version version: 57
version ubuntu: 20141218
version device: 20141213
version custom: 20141218

phablet@ubuntu-phablet:~$ cat ./.cache/upstart/media-hub.log
Starting DecodingService...
Pulseaudio connection established.
pulsesink: active_sink=('',-1,-1) -> ('sink.primary',0,0)
Starting DecodingService...
Assertion 'pthread_mutex_destroy(&m->mutex) == 0' failed at pulsecore/mutex-posix.c:83, function pa_mutex_free(). Aborting.

(gdb) bt full
#0 __libc_do_syscall () at ../ports/sysdeps/unix/sysv/linux/arm/libc-do-syscall.S:44
No locals.
#1 0xb6209e5e in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
        _a1 = 0
        _a3tmp = 6
        _a1tmp = 0
        _a3 = 6
        _nametmp = 268
        _a2tmp = 1599
        _a2 = 1599
        _name = 268
        _sys_result = <optimized out>
        pd = 0xb6f25220
        pid = 0
        selftid = 1599
#2 0xb620ab4e in __GI_abort () at abort.c:89
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x0, sa_sigaction = 0x0}, sa_mask = {__val = {0, 3069374904, 0, 3069374464, 4294967295, 0, 3049208252, 3069340384, 3069334048, 3049189376, 353320, 0, 1, 3069399040, 0, 3069278709, 3069340384, 1, 5, 0, 3049418536,
              3055459240, 20932940, 3049464704, 3049418536, 3049465264, 83, 1593344, 20932940, 3069297136, 0, 224}}, sa_flags = 1650074624, sa_restorer = 0x625a2400}
        sigs = {__val = {32, 0 <repeats 31 times>}}
#3 0xb5c22674 in pa_mutex_free (m=<optimized out>) at pulsecore/mutex-posix.c:83
        m = <optimized out>
#4 0xb64225d8 in pa_threaded_mainloop_free (m=0xb27004b8) at pulse/thread-mainloop.c:131
        __func__ = "pa_threaded_mainloop_free"
        __PRETTY_FUNCTION__ = "pa_threaded_mainloop_free"
#5 0x0012ccde in core::ubuntu::media::ServiceImplementation::Private::~Private (this=0x13f6898, __in_chrg=<optimized out>) at /build/buildd/media-hub-2.0.0+15.04.20141126.2/src/core/media/service_implementation.cpp:155
No locals.
#6 0x0012ce60 in std::_Sp_counted_ptr<core::ubuntu::media::ServiceImplementation::Private*, (__gnu_cxx::_Lock_policy)2>::_M_dispose (this=<optimized out>) at /usr/include/c++/4.9/bits/shared_ptr_base.h:373
No locals.
#7 0x000e79a6 in std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_release (this=0x13fb7e0) at /usr/include/c++/4.9/bits/shared_ptr_base.h:149
No locals.
#8 0x0012af06 in ~__shared_count (this=0x13eaf4c, __in_chrg=<optimized out>) at /usr/include/c++/4.9/bits/shared_ptr_base.h:666
No locals.
#9 ~__shared_ptr (this=0x13eaf48, __in_chrg=<optimized out>) at /usr/include/c++/4.9/bits/shared_ptr_base.h:914
No locals.
#10 core::ubuntu::media::ServiceImplementation::ServiceImplementation (this=0x13eaf24) at /usr/include/c++/4.9/bits/shared_ptr.h:93
        this = 0x13eaf48
#11 0x000e79f2 in construct<core::ubuntu::media::ServiceImplementation> (__p=0x13eaf24, this=<optimized out>) at /usr/include/c++/4.9/bits/shared_ptr_base.h:511
No locals.
#12 _S_construct<core::ubuntu::media::ServiceImplementation> (__p=0x13eaf24, __a=...) at /usr/include/c++/4.9/bits/alloc_traits.h:253
No locals.
#13 construct<core::ubuntu::media::ServiceImplementation> (__p=0x13eaf24, __a=...) at /usr/include/c++/4.9/bits/alloc_traits.h:399
No locals.
#14 _Sp_counted_ptr_inplace<> (__a=..., this=0x13eaf18) at /usr/include/c++/4.9/bits/shared_ptr_base.h:515
No locals.
#15 construct<std::_Sp_counted_ptr_inplace<core::ubuntu::media::ServiceImplementation, std::allocator<core::ubuntu::media::ServiceImplementation>, (__gnu_cxx::_Lock_policy)2>, std::allocator<core::ubuntu::media::ServiceImplementation> const> (__p=<optimized out>,
    this=<synthetic pointer>) at /usr/include/c++/4.9/ext/new_allocator.h:120
No locals.
#16 _S_construct<std::_Sp_counted_ptr_inplace<core::ubuntu::media::ServiceImplementation, std::allocator<core::ubuntu::media::ServiceImplementation>, (__gnu_cxx::_Lock_policy)2>, std::allocator<core::ubuntu::media::ServiceImplementation> const> (__p=<optimized out>,
    __a=<synthetic pointer>) at /usr/include/c++/4.9/bits/alloc_traits.h:253
No locals.
#17 construct<std::_Sp_counted_ptr_inplace<core::ubuntu::media::ServiceImplementation, std::allocator<core::ubuntu::media::ServiceImplementation>, (__gnu_cxx::_Lock_policy)2>, std::allocator<core::ubuntu::media::ServiceImplementation> const> (__p=<optimized out>,
    __a=<synthetic pointer>) at /usr/include/c++/4.9/bits/alloc_traits.h:399
No locals.
#18 __shared_count<core::ubuntu::media::ServiceImplementation, std::allocator<core::ubuntu::media::ServiceImplementation> > (__a=..., this=0xbee2e598) at /usr/include/c++/4.9/bits/shared_ptr_base.h:619
No locals.
#19 std::__shared_ptr<core::ubuntu::media::ServiceImplementation, (__gnu_cxx::_Lock_policy)2>::__shared_ptr<std::allocator<core::ubuntu::media::ServiceImplementation>>(std::_Sp_make_shared_tag, std::allocator<core::ubuntu::media::ServiceImplementation> const&) (
    this=this@entry=0xbee2e594, __tag=..., __tag@entry=..., __a=...) at /usr/include/c++/4.9/bits/shared_ptr_base.h:1090
No locals.
#20 0x000e71bc in shared_ptr<std::allocator<core::ubuntu::media::ServiceImplementation> > (__a=..., __tag=..., this=0xbee2e594) at /usr/include/c++/4.9/bits/shared_ptr.h:316
No locals.
#21 allocate_shared<core::ubuntu::media::ServiceImplementation, std::allocator<core::ubuntu::media::ServiceImplementation> > (__a=...) at /usr/include/c++/4.9/bits/shared_ptr.h:588
No locals.
#22 make_shared<core::ubuntu::media::ServiceImplementation> () at /usr/include/c++/4.9/bits/shared_ptr.h:604
No locals.
#23 main () at /build/buildd/media-hub-2.0.0+15.04.20141126.2/src/core/media/server/server.cpp:39