segmentation fault in systemd-resolve

`dmesg` reveals a lot (> 1000) message in the form of

    [733613.592593] systemd-resolve[23515]: segfault at 1f ip 00005603285ac866 sp 00007ffcd8b1fd30 error 4 in systemd-resolved[56032858b000+4c000]
    [733919.154889] systemd-resolve[25753]: segfault at 21 ip 0000000000000021 sp 00007fffe5e95438 error 14 in systemd-resolved[5647fa725000+4c000]
    [734086.092512] systemd-resolve[25895]: segfault at 3b4 ip 00007f4ce2686226 sp 00007ffe901696c0 error 4 in libsystemd-shared-231.so[7f4ce2635000+178000]
    [734518.092536] systemd-resolve[28340]: segfault at 55c9157806e0 ip 000055c9157806e0 sp 00007ffc0e19c968 error 15
    [734605.092536] systemd-resolve[29254]: segfault at 55f2abd3d630 ip 000055f2abd3d630 sp 00007ffd8caea4a8 error 15
    [734810.838123] systemd[1]: open-iscsi.service: Cannot add dependency job, ignoring: Unit open-iscsi.service is masked.
    [734811.379177] systemd[1]: brltty.service: Cannot add dependency job, ignoring: Unit brltty.service is masked.
    [734811.596355] systemd[1]: open-iscsi.service: Cannot add dependency job, ignoring: Unit open-iscsi.service is masked.
    [734811.807015] systemd: 74 output lines suppressed due to ratelimiting
    [735409.842514] systemd-resolve[4784]: segfault at ab39b924f2 ip 00007f7812377226 sp 00007fff4150ea30 error 4 in libsystemd-shared-231.so[7f7812326000+178000]
    [735530.098073] systemd-resolve[5621]: segfault at 7f4e658abd20 ip 00007f4f6556aea9 sp 00007ffe1498e320 error 4 in libc-2.24.so[7f4f654ea000+1bd000]
    [736167.939132] systemd-resolve[8931]: segfault at fffffffffffffffe ip 00007fe290f19162 sp 00007ffebe838e40 error 5 in libc-2.24.so[7fe290e93000+1bd000]
    [736345.592608] systemd-resolve[10056]: segfault at 5 ip 00007faa2ea3b226 sp 00007ffdb90ae740 error 4 in libsystemd-shared-231.so[7faa2e9ea000+178000]
    [737069.938626] traps: systemd-resolve[12968] general protection ip:7f04f9d1d226 sp:7ffd0c0b1950 error:0 in libsystemd-shared-231.so[7f04f9ccc000+178000]
    [737202.342511] systemd-resolve[13961]: segfault at 3 ip 00007fdfe82a9226 sp 00007ffe146d3d50 error 4 in libsystemd-shared-231.so[7fdfe8258000+178000]
    [737356.092549] systemd-resolve[15062]: segfault at 41 ip 000056539647b726 sp 00007ffe25c518e0 error 4 in systemd-resolved[565396467000+4c000]
    [737595.092520] systemd-resolve[16487]: segfault at 91 ip 0000000000000091 sp 00007ffd146bf198 error 14 in systemd-resolved[5644f4849000+4c000]
    [737686.842560] systemd-resolve[17106]: segfault at 164 ip 00007f14323f4226 sp 00007fff98316f90 error 4 in libsystemd-shared-231.so[7f14323a3000+178000]
    [738397.592539] systemd-resolve[19734]: segfault at 41 ip 0000000000000041 sp 00007ffc5d23da58 error 14 in systemd-resolved[55ed3fb85000+4c000]
    [738460.842548] systemd-resolve[20193]: segfault at 12 ip 00007f7ae1a56226 sp 00007fff7b503ca0 error 4 in libsystemd-shared-231.so[7f7ae1a05000+178000]
    [738518.342511] systemd-resolve[20384]: segfault at 3 ip 00007fcb83841226 sp 00007ffc1a5d7ee0 error 4 in libsystemd-shared-231.so[7fcb837f0000+178000]
    [738799.592554] traps: systemd-resolve[21557] general protection ip:562279d7133c sp:7fff4c252188 error:0 in systemd-resolved[562279d5f000+4c000]
    [738931.342522] traps: systemd-resolve[22076] general protection ip:7f369eba543e sp:7ffe60bc9630 error:0 in libsystemd-shared-231.so[7f369eac9000+178000]
    [739038.092523] traps: systemd-resolve[22633] general protection ip:7fd8f27e6226 sp:7fffba5b6aa0 error:0 in libsystemd-shared-231.so[7fd8f2795000+178000]
    [739136.592518] systemd-resolve[23157]: segfault at 40 ip 0000000000000040 sp 00007ffd544b1cc8 error 14 in systemd-resolved[555e904e9000+4c000]
    [739582.092490] systemd-resolve[25373]: segfault at 50 ip 0000000000000050 sp 00007ffec6ab6c58 error 14 in systemd-resolved[557c48108000+4c000]
    [739933.342529] systemd-resolve[26927]: segfault at 131 ip 000055b472eb2866 sp 00007ffe388c35c0 error 4 in systemd-resolved[55b472e91000+4c000]
    [740028.592553] systemd-resolve[27180]: segfault at 7f5e4bda5b68 ip 00007f5e4bda5b68 sp 00007ffc2b198fc8 error 15 in libc-2.24.so[7f5e4bda5000+2000]
    [740553.092527] systemd-resolve[29516]: segfault at 55edabed2824 ip 00007f3bb8495235 sp 00007ffcc8a01ed0 error 7 in libsystemd-shared-231.so[7f3bb8444000+178000]
    [740617.092527] traps: systemd-resolve[29939] general protection ip:560225aa633c sp:7fffc5e284a8 error:0 in systemd-resolved[560225a94000+4c000]
    [740746.092512] systemd-resolve[30149]: segfault at 20 ip 0000000000000020 sp 00007ffdcc865b08 error 14 in systemd-resolved[55612be4f000+4c000]
    [740777.842481] traps: systemd-resolve[30663] trap stack segment ip:563692613866 sp:7fff8190dfb0 error:0 in systemd-resolved[5636925f2000+4c000]
    [740892.842676] systemd-resolve[31805]: segfault at 56258df7bc58 ip 00007f667bef1e78 sp 00007ffd66bb3b30 error 4 in libc-2.24.so[7f667be71000+1bd000]
    [741302.939177] systemd-resolve[1037]: segfault at ffffffffffffffff ip ffffffffffffffff sp 00007ffd54518ad8 error 15
    [741414.592542] systemd-resolve[1968]: segfault at 4100000003 ip 00007f85ffda5226 sp 00007ffd7ff39f80 error 4 in libsystemd-shared-231.so[7f85ffd54000+178000]
    [741530.592480] systemd-resolve[2671]: segfault at aca654a78a ip 00007f27cf9ed226 sp 00007ffdd3d36dd0 error 4 in libsystemd-shared-231.so[7f27cf99c000+178000]
    [741701.592513] systemd-resolve[3065]: segfault at 7f369caf0b98 ip 00007f369caf0b98 sp 00007ffe6e4b47e8 error 15 in libc-2.24.so[7f369caf0000+2000]
    [741820.842526] systemd-resolve[3729]: segfault at 484 ip 00007f8592192226 sp 00007ffdb6b4be90 error 4 in libsystemd-shared-231.so[7f8592141000+178000]
    [742174.842499] systemd-resolve[5084]: segfault at 164 ip 00007f58d2ba7226 sp 00007ffd244ac4e0 error 4 in libsystemd-shared-231.so[7f58d2b56000+178000]
    [742276.342505] systemd-resolve[6969]: segfault at 55ef201f2d50 ip 000055ef201f2d50 sp 00007ffe6a6ccad8 error 15
    [742519.342535] systemd-resolve[7874]: segfault at 200000092 ip 000055d6f6701866 sp 00007ffc09224b80 error 4 in systemd-resolved[55d6f66e0000+4c000]
    [743033.842536] systemd-resolve[10851]: segfault at 21 ip 0000563f40d80726 sp 00007ffc2d5f8760 error 4 in systemd-resolved[563f40d6c000+4c000]
    [743227.592592] systemd-resolve[13565]: segfault at 121 ip 00007f1a25a330f1 sp 00007ffed6b64830 error 4 in libsystemd-shared-231.so[7f1a259e5000+178000]
    [743478.592539] traps: systemd-resolve[14750] general protection ip:561997a2033c sp:7fff387043e8 error:0 in systemd-resolved[561997a0e000+4c000]
    [743555.939949] systemd-resolve[15060]: segfault at 7fada8849c60 ip 00007faea850c5ff sp 00007ffd17f18fd0 error 4 in libc-2.24.so[7faea8488000+1bd000]
    [743736.592515] traps: systemd-resolve[16359] general protection ip:7effc10e8226 sp:7fffa8e0be30 error:0 in libsystemd-shared-231.so[7effc1097000+178000]
    [744083.342526] systemd-resolve[17451]: segfault at 51 ip 000055f055d44726 sp 00007ffcfc5b8bb0 error 4 in systemd-resolved[55f055d30000+4c000]
    [744183.342534] systemd-resolve[18593]: segfault at 91 ip 0000000000000091 sp 00007ffe0b7f7688 error 14 in systemd-resolved[5621481ca000+4c000]
    [744304.592516] traps: systemd-resolve[19193] general protection ip:55bef11d933c sp:7ffeeb4862a8 error:0 in systemd-resolved[55bef11c7000+4c000]
    [744417.092539] systemd-resolve[19806]: segfault at 51 ip 000055db8e576726 sp 00007fff3352fb80 error 4 in systemd-resolved[55db8e562000+4c000]
    [744555.842671] systemd-resolve[20539]: segfault at 7fb32c1f1c80 ip 00007fb42beb45ff sp 00007ffd0cea2060 error 4 in libc-2.24.so[7fb42be30000+1bd000]
    [744614.592519] systemd-resolve[20693]: segfault at 3 ip 00007fdf74a94226 sp 00007fffe61c6470 error 4 in libsystemd-shared-231.so[7fdf74a43000+178000]
    [745039.592514] systemd-resolve[22276]: segfault at 6 ip 00007fee86f28226 sp 00007fff877ecb90 error 4 in libsystemd-shared-231.so[7fee86ed7000+178000]
    [745089.842538] systemd-resolve[22877]: segfault at 15006f0105 ip 00007f28aacab226 sp 00007ffdb75f0dc0 error 4 in libsystemd-shared-231.so[7f28aac5a000+178000]
    [745195.592527] systemd-resolve[23300]: segfault at 44 ip 00007fbbfe397226 sp 00007ffd99f12c00 error 4 in libsystemd-shared-231.so[7fbbfe346000+178000]
    [745240.842533] traps: systemd-resolve[24079] trap stack segment ip:561f70520866 sp:7ffe0f817fb0 error:0 in systemd-resolved[561f704ff000+4c000]
    [745408.842523] traps: systemd-resolve[24767] general protection ip:7f3abbdd9226 sp:7ffede535460 error:0 in libsystemd-shared-231.so[7f3abbd88000+178000]
    [745454.092510] systemd-resolve[25397]: segfault at ffffffff00000021 ip 0000558b353af866 sp 00007fffb1dc14e0 error 5 in systemd-resolved[558b3538e000+4c000]

ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: systemd 231-9ubuntu2
ProcVersionSignature: Ubuntu 4.8.0-32.34-generic 4.8.11
Uname: Linux 4.8.0-32-generic x86_64
NonfreeKernelModules: openafs zfs zunicode zcommon znvpair zavl
ApportVersion: 2.20.3-0ubuntu8.2
Architecture: amd64
Date: Sun Jan 8 19:22:19 2017
InstallationDate: Installed on 2015-04-20 (629 days ago)
InstallationMedia: Ubuntu-Server 14.10 "Utopic Unicorn" - Release amd64 (20141022.2)
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.8.0-32-generic root=/dev/mapper/root-root ro rootflags=subvol=@
SourcePackage: systemd
UpgradeStatus: Upgraded to yakkety on 2016-10-19 (80 days ago)
dmi.bios.date: 08/21/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P1.20
dmi.board.name: X99 Extreme3
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.20:bd08/21/2014:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX99Extreme3:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.