(gdb) thread apply all backtrace

Thread 2 (Thread 0x7fffeec40700 (LWP 15450)):
#0  0x00007ffff63174d9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007ffff7a3f630 in ?? () from /opt/libreoffice/program/../basis-link/ure-link/lib/libuno_sal.so.3
#2  0x00007ffff63128ba in start_thread () from /lib/libpthread.so.0
#3  0x00007ffff67fb02d in clone () from /lib/libc.so.6
#4  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7ffff7fd1700 (LWP 15447)):
#0  0x00007ffff67f0113 in poll () from /lib/libc.so.6
#1  0x00007fffe99aa8ce in ?? () from /lib/libresolv.so.2
#2  0x00007fffe99a8a75 in __libc_res_nquery () from /lib/libresolv.so.2
#3  0x00007fffe99a9031 in ?? () from /lib/libresolv.so.2
#4  0x00007fffe99a92b1 in __libc_res_nsearch () from /lib/libresolv.so.2
#5  0x00007fffe8f51fb8 in _nss_dns_gethostbyname3_r () from /lib/libnss_dns.so.2
#6  0x00007fffe8f521ee in _nss_dns_gethostbyname_r () from /lib/libnss_dns.so.2
#7  0x00007ffff6812103 in gethostbyname_r () from /lib/libc.so.6
#8  0x00007ffff7a19704 in ?? () from /opt/libreoffice/program/../basis-link/ure-link/lib/libuno_sal.so.3
#9  0x00007ffff7a199ab in ?? () from /opt/libreoffice/program/../basis-link/ure-link/lib/libuno_sal.so.3
#10 0x00007ffff7a19c9a in ?? () from /opt/libreoffice/program/../basis-link/ure-link/lib/libuno_sal.so.3
#11 0x00007ffff7a19e34 in ?? () from /opt/libreoffice/program/../basis-link/ure-link/lib/libuno_sal.so.3
#12 0x00007ffff7a19e8a in osl_getLocalHostname () from /opt/libreoffice/program/../basis-link/ure-link/lib/libuno_sal.so.3
#13 0x00007fffec2fe1f5 in X11SalData::X11SalData() () from /opt/libreoffice/basis3.3/program/libvclplug_genlx.so
#14 0x00007fffeddf0e9f in create_SalInstance () from /opt/libreoffice/basis3.3/program/libvclplug_gtklx.so
#15 0x00007ffff3398669 in ?? () from /opt/libreoffice/program/../basis-link/program/libvcllx.so
#16 0x00007ffff339895a in ?? () from /opt/libreoffice/program/../basis-link/program/libvcllx.so
#17 0x00007ffff3398b97 in ?? () from /opt/libreoffice/program/../basis-link/program/libvcllx.so
#18 0x00007ffff30f7b37 in InitVCL(com::sun::star::uno::Reference<com::sun::star::lang::XMultiServiceFactory> const&) ()
   from /opt/libreoffice/program/../basis-link/program/libvcllx.so
#19 0x00007ffff30f88aa in ?? () from /opt/libreoffice/program/../basis-link/program/libvcllx.so
#20 0x00007ffff30f8a95 in SVMain() () from /opt/libreoffice/program/../basis-link/program/libvcllx.so
#21 0x00007ffff77bf53c in soffice_main () from /opt/libreoffice/program/../basis-link/program/libsofficeapp.so
#22 0x0000000000400fdb in main ()
(gdb)