As delivered in rcpl14: bind - 9.10.2-P4-r0 dhcp - 4.3.2-r0 1. In dhcp/client/dhclient.c:972 signal handlers are registered. (ctx->running is 0 at this point) 2. ...we get a signal (SIGINIT) after that 3. dhcp_signal_handler() at dhcp/omapip/isclib.c:337 is called 4. ....that calls ics_app_ctxsuspend( ) at bind9/lib/isc/app_api.c:114 ....that calls ics__app_ctxsuspend ) at bind9/lib/isc/unix/app.c:846 ... that aborts on REQUIRE(ctx->running) (ctx->running is set later when somewhere in dispatch() (called from dhclient.c:987) root@qemuX:~# dhclient eth1 ^C/wrl8-x86-64-HEAD/bitbake_build/tmp/work/corei7-64-wrs-linux/bind/9.10.2-P4-r0/bind-9.10.2-P4/lib/isc/unix/app.c:860: REQUIRE(ctx->running) failed, back trace #0 0x59355e in ?? #1 0x5936ea in ?? #2 0x5b4492 in ?? #3 0x7f20d70f0560 in ?? #4 0x7f20d71758f0 in ?? #5 0x7f20d71757a4 in ?? #6 0x42486c in ?? #7 0x40a39a in ?? #8 0x7f20d70dd6b0 in ?? #9 0x40ae39 in ?? Aborted root@qemuX:~#