the startup segfault disappears if a purge the extra-plugin package but NOT if i only remove it :-O

maybe the bug comes with one of the dependency packages?

Feb 13 17:31:24 kvm-xenial charon: 00[LIB] loaded plugins: charon test-vectors aes rc2 sha1 sha2 md4 md5 random nonce x509 revocation constraints pubkey pkcs1 pkcs7 pkcs8 pkcs12 pgp dnskey sshkey pem openssl fips-prf gmp xcbc hmac ccm gcm attr kernel-netlink resolve socket-default connmark farp stroke updown eap-identity eap-sim eap-sim-pcsc eap-aka eap-aka-3gpp2 eap-simaka-pseudonym eap-simaka-reauth eap-md5 eap-gtc eap-mschapv2 eap-dynamic eap-radius eap-tls eap-ttls eap-peap eap-tnc xauth-generic xauth-eap xauth-noauth tnc-tnccs tnccs-20 tnccs-11 tnccs-dynamic dhcp lookip error-notify certexpire led addrblock unity
Feb 13 17:31:24 kvm-xenial charon: 00[LIB] dropped capabilities, running as uid 0, gid 0
Feb 13 17:31:24 kvm-xenial charon: 00[JOB] spawning 16 worker threads
Feb 13 17:31:24 kvm-xenial charon: 02[DMN] thread 2 received 11
Feb 13 17:31:24 kvm-xenial charon: 02[LIB]  dumping 7 stack frame addresses:
Feb 13 17:31:24 kvm-xenial charon: 02[LIB]   /lib/x86_64-linux-gnu/libpthread.so.0 @ 0x7f77069c9000 [0x7f77069d9cd0]
Feb 13 17:31:24 kvm-xenial charon: 08[DMN] thread 8 received 11
Feb 13 17:31:24 kvm-xenial charon: 08[LIB]  dumping 7 stack frame addresses:
Feb 13 17:31:24 kvm-xenial charon: 08[LIB]   /lib/x86_64-linux-gnu/libpthread.so.0 @ 0x7f77069c9000 [0x7f77069d9cd0]
Feb 13 17:31:24 kvm-xenial charon: 07[DMN] thread 7 received 11
Feb 13 17:31:24 kvm-xenial charon: 07[LIB]  dumping 7 stack frame addresses:
Feb 13 17:31:24 kvm-xenial charon: 07[LIB]   /lib/x86_64-linux-gnu/libpthread.so.0 @ 0x7f77069c9000 [0x7f77069d9cd0]
Feb 13 17:31:24 kvm-xenial charon: 08[LIB]     ->
Feb 13 17:31:24 kvm-xenial charon: 08[LIB]   /usr/lib/ipsec/libipsec.so.0 @ 0x7f770176d000 [0x7f7701770f4b]
Feb 13 17:31:24 kvm-xenial charon: 02[LIB]     ->
Feb 13 17:31:24 kvm-xenial charon: 02[LIB]   /usr/lib/ipsec/libipsec.so.0 @ 0x7f770176d000 [0x7f770176ffdc]
Feb 13 17:31:24 kvm-xenial charon: 07[LIB]     ->
Feb 13 17:31:24 kvm-xenial charon: 07[LIB]   /usr/lib/ipsec/libipsec.so.0 @ 0x7f770176d000 [0x7f7701770b5b]
Feb 13 17:31:24 kvm-xenial charon: 02[LIB]     ->
Feb 13 17:31:24 kvm-xenial charon: 02[LIB]   /usr/lib/ipsec/libstrongswan.so.0 @ 0x7f7707079000 [0x7f77070a60c2]
Feb 13 17:31:24 kvm-xenial charon: 08[LIB]     ->
Feb 13 17:31:24 kvm-xenial charon: 08[LIB]   /usr/lib/ipsec/libstrongswan.so.0 @ 0x7f7707079000 [0x7f77070a60c2]
Feb 13 17:31:24 kvm-xenial charon: 07[LIB]     ->
Feb 13 17:31:24 kvm-xenial charon: 07[LIB]   /usr/lib/ipsec/libstrongswan.so.0 @ 0x7f7707079000 [0x7f77070a60c2]
Feb 13 17:31:24 kvm-xenial charon: 02[LIB]     ->
Feb 13 17:31:24 kvm-xenial charon: 02[LIB]   /usr/lib/ipsec/libstrongswan.so.0 @ 0x7f7707079000 [0x7f77070a69fb]
Feb 13 17:31:24 kvm-xenial charon: 08[LIB]     ->
Feb 13 17:31:24 kvm-xenial charon: 08[LIB]   /usr/lib/ipsec/libstrongswan.so.0 @ 0x7f7707079000 [0x7f77070a69fb]
Feb 13 17:31:24 kvm-xenial charon: 07[LIB]     ->
Feb 13 17:31:24 kvm-xenial charon: 07[LIB]   /usr/lib/ipsec/libstrongswan.so.0 @ 0x7f7707079000 [0x7f77070a69fb]
Feb 13 17:31:24 kvm-xenial charon: 02[LIB]     ->
Feb 13 17:31:24 kvm-xenial charon: 02[LIB]   /usr/lib/ipsec/libstrongswan.so.0 @ 0x7f7707079000 [0x7f77070b772c]
Feb 13 17:31:24 kvm-xenial charon: 08[LIB]     ->
Feb 13 17:31:24 kvm-xenial charon: 08[LIB]   /usr/lib/ipsec/libstrongswan.so.0 @ 0x7f7707079000 [0x7f77070b772c]
Feb 13 17:31:24 kvm-xenial charon: 07[LIB]     ->
Feb 13 17:31:24 kvm-xenial charon: 07[LIB]   /usr/lib/ipsec/libstrongswan.so.0 @ 0x7f7707079000 [0x7f77070b772c]
Feb 13 17:31:24 kvm-xenial charon: 02[LIB]     ->
Feb 13 17:31:24 kvm-xenial charon: 02[LIB]   /lib/x86_64-linux-gnu/libpthread.so.0 @ 0x7f77069c9000 [0x7f77069d066a]
Feb 13 17:31:24 kvm-xenial charon: 08[LIB]     ->
Feb 13 17:31:24 kvm-xenial charon: 08[LIB]   /lib/x86_64-linux-gnu/libpthread.so.0 @ 0x7f77069c9000 [0x7f77069d066a]
Feb 13 17:31:24 kvm-xenial charon: 07[LIB]     ->
Feb 13 17:31:24 kvm-xenial charon: 07[LIB]   /lib/x86_64-linux-gnu/libpthread.so.0 @ 0x7f77069c9000 [0x7f77069d066a]
Feb 13 17:31:24 kvm-xenial charon: 02[LIB]     ->
Feb 13 17:31:24 kvm-xenial charon: 02[LIB]   /lib/x86_64-linux-gnu/libc.so.6 @ 0x7f77065ff000 (clone+0x6d) [0x7f7706705e4d]
Feb 13 17:31:24 kvm-xenial charon: 08[LIB]     ->
Feb 13 17:31:24 kvm-xenial charon: 08[LIB]   /lib/x86_64-linux-gnu/libc.so.6 @ 0x7f77065ff000 (clone+0x6d) [0x7f7706705e4d]
Feb 13 17:31:24 kvm-xenial charon: 07[LIB]     ->
Feb 13 17:31:24 kvm-xenial charon: 07[LIB]   /lib/x86_64-linux-gnu/libc.so.6 @ 0x7f77065ff000 (clone+0x6d) [0x7f7706705e4d]
Feb 13 17:31:24 kvm-xenial charon: 02[LIB]     ->
Feb 13 17:31:24 kvm-xenial charon: 08[LIB]     ->
Feb 13 17:31:24 kvm-xenial charon: 07[LIB]     ->
Feb 13 17:31:25 kvm-xenial charon: 02[DMN] killing ourself, received critical signal