2020/08/06 07:50:24 BGP: Assertion `ret != ((void *)0)' failed in file bgp_attr.c, line 989, function bgp_attr_unintern
2020/08/06 07:50:24 BGP: Backtrace for 10 stack frames:
2020/08/06 07:50:24 BGP: [bt 0] 0x800982de8 <zlog_backtrace+0x28> at /usr/local/lib/libfrr.so.0
2020/08/06 07:50:24 BGP: [bt 1] 0x800983356 <_zlog_assert_failed+0x96> at /usr/local/lib/libfrr.so.0
2020/08/06 07:50:24 BGP: [bt 2] 0x43230f <bgp_attr_unintern+0xff> at /usr/local/sbin/bgpd
2020/08/06 07:50:24 BGP: [bt 3] 0x487c61 <subgroup_update_packet+0x551> at /usr/local/sbin/bgpd
2020/08/06 07:50:24 BGP: [bt 4] 0x4560c3 <bgp_write+0x3b3> at /usr/local/sbin/bgpd
2020/08/06 07:50:24 BGP: [bt 5] 0x455e93 <bgp_write+0x183> at /usr/local/sbin/bgpd
2020/08/06 07:50:24 BGP: [bt 6] 0x800970dc4 <thread_call+0x84> at /usr/local/lib/libfrr.so.0
2020/08/06 07:50:24 BGP: [bt 7] 0x80099f2d8 <frr_run+0x138> at /usr/local/lib/libfrr.so.0
2020/08/06 07:50:24 BGP: [bt 8] 0x41ae40 <main+0x1e0> at /usr/local/sbin/bgpd
2020/08/06 07:50:24 BGP: [bt 9] 0x41a7f5 <_start+0x95> at /usr/local/sbin/bgpd
2020/08/06 07:50:24 BGP: Current thread function (bgp_write), scheduled from file bgp_packet.c, line 309