I just got this during a reboot. Here's the backtrace:
Thread 2 (Thread 0xb65d3020 (LWP 295)):
#0 0xb68017f8 in ?? () from /lib/libc.so.6
#1 0xb67f5268 in ?? () from /lib/libc.so.6
#2 0xb67f52c0 in ?? () from /lib/libc.so.6
#3 0xb686b380 in epoll_wait () from /lib/libc.so.6
#4 0xb6527a90 in ?? () from /lib/libnss_systemd.so.2
#5 0xb6529cc0 in ?? () from /lib/libnss_systemd.so.2
#6 0xb64c02a8 in ?? () from /lib/libnss_systemd.so.2
#7 0xb64c2110 in ?? () from /lib/libnss_systemd.so.2
#8 0xb64c39b8 in ?? () from /lib/libnss_systemd.so.2
#9 0xb6433628 in ?? () from /lib/libnss_systemd.so.2
#10 0xb642f5bc in _nss_systemd_getgrnam_r () from /lib/libnss_systemd.so.2
#11 0xb68909f0 in getgrnam_r () from /lib/libc.so.6
#12 0xb6ca4460 in sr_get_gid (gid=0xbeb1c31c, gid@entry=0xbeb1c314, group=0xb6d00d50 "sysrepo") at /home/jkt/work/prog/_build/_br-cfb/build/sysrepo-custom/src/common.c:783
#13 0xb6caa620 in sr_open (path=0x7cbc00 "/dev/shm/srsub_ietf-interfaces.oper.5db275bd", flags=557250, flags@entry=194, mode=432, mode@entry=438) at /home/jkt/work/prog/_build/_br-cfb/build/sysrepo-custom/src/common.c:3802
#14 0xb6cdf274 in sr_shmsub_create (name=<optimized out>, suffix1=suffix1@entry=0xb6d00240 "oper", suffix2=<optimized out>, shm_struct_size=shm_struct_size@entry=144) at /home/jkt/work/prog/_build/_br-cfb/build/sysrepo-custom/src/shm_sub.c:117
#15 0xb6cd3cb8 in sr_shmext_oper_get_sub_add (conn=conn@entry=0x5ffd98, shm_mod=shm_mod@entry=0xb5f3cfb0, sub_id=3199321224, sub_id@entry=16, path=0xbeb1c4d4 "`\006x", path@entry=0x7f4ec0 "/ietf-interfaces:interfaces/interface/ietf-ip:ipv4/neighbor", sub_type=SR_OPER_GET_SUB_STATE, sub_opts=sub_opts@entry=0, evpipe_num=11, prio=0xbeb1c488, prio@entry=0xbeb1c480) at /home/jkt/work/prog/_build/_br-cfb/build/sysrepo-custom/src/shm_ext.c:952
#16 0xb6ca3364 in sr_oper_get_subscribe (session=0x6c7cb8, module_name=0x472010 <(anonymous namespace)::IETF_INTERFACES_MODULE_NAME+8> "ietf-interfaces", path=0x7f4ec0 "/ietf-interfaces:interfaces/interface/ietf-ip:ipv4/neighbor", callback=0xb6c7d178 <sysrepo::(anonymous namespace)::operGetItemsCb(sr_session_ctx_t*, uint32_t, char const*, char const*, char const*, uint32_t, lyd_node**, void*)>, private_data=0x7855e0, opts=0, subscription=0xbeb1c4d4) at /home/jkt/work/prog/_build/_br-cfb/build/sysrepo-custom/src/sysrepo.c:8460
#17 0xb6c80adc in sysrepo::Subscription::onOperGet (this=this@entry=0xbeb1c9c8, moduleName=..., cb=..., path=..., opts=opts@entry=sysrepo::SubscribeOptions::Default) at /home/jkt/work/prog/_build/_br-cfb/per-package/sysrepo-cpp/host/opt/ext-toolchain/arm-buildroot-linux-gnueabihf/include/c++/15.1.0/bits/basic_string.h:238
#18 0x0041bd08 in velia::network::IETFInterfaces::IETFInterfaces (this=this@entry=0xbeb1c9b0, srSess=...) at /home/jkt/work/prog/_build/_br-cfb/build/velia-custom/src/network/IETFInterfaces.cpp:214
#19 0x00414e78 in velia::network::create (conn=..., persistentNetworkDirectory=..., runtimeNetworkDirectory=..., managedLinks=..., runningNetworkReloadCB=..., lldpCallback=..., lldpLocalData=...) at /home/jkt/work/prog/_build/_br-cfb/build/velia-custom/src/network/Factory.h:36
#20 0x00412a64 in main (argc=<optimized out>, argv=<optimized out>) at /home/jkt/work/prog/_build/_br-cfb/build/velia-custom/src/main-network.cpp:111
Thread 1 (Thread 0xb5edf0c0 (LWP 342)):
#0 0xb67fa73c in ?? () from /lib/libc.so.6
#1 0xb67b0498 in raise () from /lib/libc.so.6
#2 0xb679b204 in abort () from /lib/libc.so.6
#3 0xb69f23c0 in __gnu_cxx::__verbose_terminate_handler() () from /lib/libstdc++.so.6
#4 0xb69efe48 in ?? () from /lib/libstdc++.so.6
#5 0xb69e42f8 in std::terminate() () from /lib/libstdc++.so.6
#6 0xb69f0238 in __cxa_throw () from /lib/libstdc++.so.6
#7 0xb6c6ebd8 in sysrepo::Session::mt_lock (mtx=...) at /home/jkt/work/prog/_build/_br-cfb/build/sysrepo-cpp-custom/include/sysrepo-cpp/Session.hpp:206
#8 sysrepo::Session::activeDatastore (this=this@entry=0xb5ede010) at /home/jkt/work/prog/_build/_br-cfb/build/sysrepo-cpp-custom/src/Session.cpp:111
#9 0x004660d8 in velia::utils::ScopedDatastoreSwitch::ScopedDatastoreSwitch (this=0xb5ede010, session=..., ds=sysrepo::Datastore::Operational) at /home/jkt/work/prog/_build/_br-cfb/build/velia-custom/src/utils/sysrepo.cpp:172
#10 velia::utils::valuesPush (session=..., values=..., foreignRemovals=..., ourRemovals=...) at /home/jkt/work/prog/_build/_br-cfb/build/velia-custom/src/utils/sysrepo.cpp:126
#11 0x004227cc in velia::network::IETFInterfaces::onLinkUpdate (this=0xbeb1c9b0, link=<optimized out>, action=<optimized out>) at /home/jkt/work/prog/_build/_br-cfb/build/velia-custom/src/network/IETFInterfaces.cpp:259
#12 0x004510d8 in std::function<void(rtnl_link*, int)>::operator() (this=0x6017e8, __args#0=<optimized out>, __args#1=<optimized out>) at /home/jkt/work/prog/_build/_br-cfb/per-package/velia/host/opt/ext-toolchain/arm-buildroot-linux-gnueabihf/include/c++/15.1.0/bits/std_function.h:593
#13 (anonymous namespace)::nlCacheMngrCallbackWrapper (obj=warning: could not convert 'nl_object' from the host encoding (ANSI_X3.4-1968) to UTF-32.
This normally should not happen, please file a bug report.
0xb4d08b90, action=1, data=0x6017e8) at /home/jkt/work/prog/_build/_br-cfb/build/velia-custom/src/network/Rtnetlink.cpp:37
#14 0xb6b6ccc4 in nl_cache_include () from /lib/libnl-3.so.200
#15 0xb6ba9a0c in ?? () from /lib/libnl-route-3.so.200
#16 0xb6b6c294 in nl_cache_parse () from /lib/libnl-3.so.200
#17 0xb6b6d848 in ?? () from /lib/libnl-3.so.200
#18 0xb6b737b0 in nl_recvmsgs_report () from /lib/libnl-3.so.200
#19 0xb6b6e090 in nl_cache_mngr_data_ready () from /lib/libnl-3.so.200
#20 0xb6b6e1b8 in nl_cache_mngr_poll () from /lib/libnl-3.so.200
#21 0x004517fc in velia::network::impl::nlCacheMngrWatcher::run (this=0x7ede68, manager=...) at /home/jkt/work/prog/_build/_br-cfb/per-package/velia/host/opt/ext-toolchain/arm-buildroot-linux-gnueabihf/include/c++/15.1.0/bits/shared_ptr_base.h:1672
#22 0x004533b4 in std::__invoke_impl<void, void (velia::network::impl::nlCacheMngrWatcher::*)(std::shared_ptr<nl_cache_mngr>), velia::network::impl::nlCacheMngrWatcher*, std::shared_ptr<nl_cache_mngr> > (__f=<optimized out>, __t=<optimized out>) at /home/jkt/work/prog/_build/_br-cfb/per-package/velia/host/opt/ext-toolchain/arm-buildroot-linux-gnueabihf/include/c++/15.1.0/bits/invoke.h:76
#23 std::__invoke<void (velia::network::impl::nlCacheMngrWatcher::*)(std::shared_ptr<nl_cache_mngr>), velia::network::impl::nlCacheMngrWatcher*, std::shared_ptr<nl_cache_mngr> > (__fn=<optimized out>) at /home/jkt/work/prog/_build/_br-cfb/per-package/velia/host/opt/ext-toolchain/arm-buildroot-linux-gnueabihf/include/c++/15.1.0/bits/invoke.h:98
#24 std::thread::_Invoker<std::tuple<void (velia::network::impl::nlCacheMngrWatcher::*)(std::shared_ptr<nl_cache_mngr>), velia::network::impl::nlCacheMngrWatcher*, std::shared_ptr<nl_cache_mngr> > >::_M_invoke<0u, 1u, 2u> (this=<optimized out>) at /home/jkt/work/prog/_build/_br-cfb/per-package/velia/host/opt/ext-toolchain/arm-buildroot-linux-gnueabihf/include/c++/15.1.0/bits/std_thread.h:303
#25 std::thread::_Invoker<std::tuple<void (velia::network::impl::nlCacheMngrWatcher::*)(std::shared_ptr<nl_cache_mngr>), velia::network::impl::nlCacheMngrWatcher*, std::shared_ptr<nl_cache_mngr> > >::operator() (this=<optimized out>) at /home/jkt/work/prog/_build/_br-cfb/per-package/velia/host/opt/ext-toolchain/arm-buildroot-linux-gnueabihf/include/c++/15.1.0/bits/std_thread.h:310
#26 std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (velia::network::impl::nlCacheMngrWatcher::*)(std::shared_ptr<nl_cache_mngr>), velia::network::impl::nlCacheMngrWatcher*, std::shared_ptr<nl_cache_mngr> > > >::_M_run (this=<optimized out>) at /home/jkt/work/prog/_build/_br-cfb/per-package/velia/host/opt/ext-toolchain/arm-buildroot-linux-gnueabihf/include/c++/15.1.0/bits/std_thread.h:255
#27 0xb6a1df3c in ?? () from /lib/libstdc++.so.6
#28 0xb67f8694 in ?? () from /lib/libc.so.
I just got this during a reboot. Here's the backtrace: