(gdb) bt
Python Exception <class 'gdb.error'> DW_FORM_strp pointing outside of .debug_str section [in module /usr/lib/debug/usr/lib64/libjemalloc.so.2-5.0.1-5.fc28.x86_64.debug]: 
#0  __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007fe4d926acf4 in __GI___pthread_mutex_lock (mutex=0x7fe4cd992eb0) at ../nptl/pthread_mutex_lock.c:78

(gdb) info threads
  Id   Target Id         Frame 
* 1    Thread 0x7fe4e58fb300 (LWP 19546) "inkscape" __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
  2    Thread 0x7fe4cd38d700 (LWP 19547) "inkscape" futex_wait_cancelable (private=0, expected=0, 
    futex_word=0x7fe4e0c2bb6c <mark_cv+44>) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  3    Thread 0x7fe4ccb8c700 (LWP 19548) "inkscape" futex_wait_cancelable (private=0, expected=0, 
    futex_word=0x7fe4e0c2bb6c <mark_cv+44>) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  4    Thread 0x7fe4cc38b700 (LWP 19549) "inkscape" futex_wait_cancelable (private=0, expected=0, 
    futex_word=0x7fe4e0c2bb6c <mark_cv+44>) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  5    Thread 0x7fe4cbb8a700 (LWP 19550) "inkscape" futex_wait_cancelable (private=0, expected=0, 
    futex_word=0x7fe4e0c2bb6c <mark_cv+44>) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  6    Thread 0x7fe4cb389700 (LWP 19551) "inkscape" futex_wait_cancelable (private=0, expected=0, 
    futex_word=0x7fe4e0c2bb6c <mark_cv+44>) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  7    Thread 0x7fe4cab88700 (LWP 19552) "inkscape" futex_wait_cancelable (private=0, expected=0, 
    futex_word=0x7fe4e0c2bb6c <mark_cv+44>) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  8    Thread 0x7fe4ca387700 (LWP 19553) "inkscape" futex_wait_cancelable (private=0, expected=0, 
    futex_word=0x7fe4e0c2bb6c <mark_cv+44>) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  9    Thread 0x7fe4bc4be700 (LWP 19554) "gmain" 0x00007fe4d99b7589 in __GI___poll (fds=0x7fe4bb8bf000, nfds=2, timeout=-1)
    at ../sysdeps/unix/sysv/linux/poll.c:29
  10   Thread 0x7fe4bb8bd700 (LWP 19555) "gdbus" 0x00007fe4d99b7589 in __GI___poll (fds=0x7fe4bd155c00, nfds=7, timeout=-1)
    at ../sysdeps/unix/sysv/linux/poll.c:29
  11   Thread 0x7fe4a9b79700 (LWP 19564) "dconf worker" 0x00007fe4d99b7589 in __GI___poll (fds=0x7fe4a8f80000, nfds=1, 
    timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29