I've noticed that the omshell as shipped in the package is doing bad things memory access wise...
$ valgrind /usr/bin/omshell ==735304== Memcheck, a memory error detector ==735304== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al. ==735304== Using Valgrind-3.15.0 and LibVEX; rerun with -h for copyright info ==735304== Command: /usr/bin/omshell ==735304== ==735304== Conditional jump or move depends on uninitialised value(s) ==735304== at 0x48760C0: irs_resconf_load (in /usr/lib/x86_64-linux-gnu/libirs-export.so.161.0.1) ==735304== by 0x155D67: dhcp_dns_client_setservers (isclib.c:51) ==735304== by 0x15620B: dns_client_init (isclib.c:381) ==735304== by 0x15620B: dns_client_init (isclib.c:354) ==735304== by 0x1562BB: dhcp_context_create (isclib.c:246) ==735304== by 0x114C15: dhcpctl_initialize (dhcpctl.c:45) ==735304== by 0x11374B: main (omshell.c:118) ==735304== > connect ==735304== Invalid read of size 8 ==735304== at 0x14EC6B: omapi_one_dispatch (dispatch.c:676) ==735304== by 0x14F462: omapi_wait_for_completion (dispatch.c:455) ==735304== by 0x114D62: dhcpctl_connect (dhcpctl.c:115) ==735304== by 0x113F23: main (omshell.c:420) ==735304== Address 0x7010cf0 is 32 bytes inside a block of size 96 free'd ==735304== at 0x483CA3F: free (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so) ==735304== by 0x14A39F: dfree (alloc.c:203) ==735304== by 0x14A39F: omapi_object_dereference (alloc.c:709) ==735304== by 0x14E1DA: omapi_io_dereference (dispatch.c:39) ==735304== by 0x14E1DA: omapi_unregister_io_object (dispatch.c:410) ==735304== by 0x14B217: omapi_disconnect.part.0 (connection.c:528) ==735304== by 0x14B4C4: omapi_disconnect (connection.c:465) ==735304== by 0x14B4C4: omapi_connection_connect_internal (connection.c:728) ==735304== by 0x14B61C: omapi_connection_connect (connection.c:615) ==735304== by 0x14EC4E: omapi_one_dispatch (dispatch.c:693) ==735304== by 0x14F462: omapi_wait_for_completion (dispatch.c:455) ==735304== by 0x114D62: dhcpctl_connect (dhcpctl.c:115) ==735304== by 0x113F23: main (omshell.c:420) ==735304== Block was alloc'd at ==735304== at 0x483DD99: calloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so) ==735304== by 0x149F11: dmalloc (alloc.c:71) ==735304== by 0x14A094: omapi_object_allocate (alloc.c:543) ==735304== by 0x14DDDD: omapi_io_allocate (dispatch.c:39) ==735304== by 0x14DDDD: omapi_register_io_object (dispatch.c:223) ==735304== by 0x14BCA7: omapi_connect_list (connection.c:219) ==735304== by 0x14C012: omapi_connect (connection.c:96) ==735304== by 0x146BD6: omapi_protocol_connect (protocol.c:55) ==735304== by 0x114D21: dhcpctl_connect (dhcpctl.c:106) ==735304== by 0x113F23: main (omshell.c:420) ==735304== dhcpctl_connect: no more When I build ISC's dhcpd from their git repository manually, not using the source package, it works fine. I haven't got to the bottom of it, though. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1916931 Title: omshell returns inconsistent results or segfaults To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1916931/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
