pkg/53121: xfce4-clipman hangs

[martin%NetBSD.org@localhost]

>Number:         53121
>Category:       pkg
>Synopsis:       xfce4-clipman hangs
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Mar 22 08:10:00 +0000 2018
>Originator:     Martin Husemann
>Release:        NetBSD 8.99.14
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD night-owl.duskware.de 8.99.14 NetBSD 8.99.14 (NIGHT-OWL) #590: Mon Mar 19 14:59:01 CET 2018 martin%night-owl.duskware.de@localhost:/usr/src/sys/arch/amd64/compile/NIGHT-OWL amd64
Architecture: x86_64
Machine: amd64
>Description:

I have xfce4 installed from latest pkgsrc (updated early yesterday).
The clipman application does not show up. Attaching with
gdb shows:

[Switching to LWP 2 of process 1229]
0x00007f7ff123e7da in _sys___kevent50 () from /usr/lib/libc.so.12
(gdb) bt
#0  0x00007f7ff123e7da in _sys___kevent50 () from /usr/lib/libc.so.12
#1  0x00007f7fe9606de7 in __kevent50 (fd=<optimized out>, ev=<optimized out>, 
    nev=<optimized out>, rev=<optimized out>, nrev=<optimized out>, 
    ts=<optimized out>) at /usr/src/lib/libpthread/pthread_cancelstub.c:176
#2  0x00007f7febef8099 in _kqueue_thread_func ()
   from /usr/pkg/lib/libgio-2.0.so.0
#3  0x00007f7fe960b601 in pthread__create_tramp (cookie=0x7f7ff7721000)
    at /usr/src/lib/libpthread/pthread.c:593
#4  0x00007f7ff128a940 in ?? () from /usr/lib/libc.so.12
#5  0x00010102464c457f in ?? ()
#6  0x0000000000000000 in ?? ()
(gdb) info threads
  Id   Target Id         Frame 
* 1    LWP 2 of process 1229 0x00007f7ff123e7da in _sys___kevent50 ()
   from /usr/lib/libc.so.12
  2    LWP 1 of process 1229 0x00007f7ff123e65a in poll ()
   from /usr/lib/libc.so.12


>How-To-Repeat:
xfce4-clipeman &
# wait a minute, not nothing happens
gdb -p $( pgrep xfce4-clipeman )

>Fix:
n/a