systemd-resolved does not work

[zhaofengli]

(This is just for tracking as there is little we can do from our end)

systemd-resolved doesn't work due to CLOCK_BOOTTIME not being usable in timerfd_create on the OpenVZ kernel.

4.19.0 #1 SMP Thu Dec 15 20:31:06 MSK 2022

timerfd_create(CLOCK_BOOTTIME, TFD_CLOEXEC|TFD_NONBLOCK) = -1 EINVAL (Invalid argument)
 > /nix/store/3n58xw4373jp0ljirf06d8077j15pc4j-glibc-2.37-8/lib/libc.so.6(timerfd_create+0xb) [0x108f4b]
 > /nix/store/3dvqpndk3sqxwjqlcbm39a0k20skhs8c-systemd-253.5/lib/systemd/libsystemd-shared-253.so(setup_clock_data+0x98) [0x252e18]
 > /nix/store/3dvqpndk3sqxwjqlcbm39a0k20skhs8c-systemd-253.5/lib/systemd/libsystemd-shared-253.so(sd_event_add_time+0xc2) [0x257552]
 > /nix/store/3dvqpndk3sqxwjqlcbm39a0k20skhs8c-systemd-253.5/lib/systemd/libsystemd-shared-253.so(event_reset_time+0x167) [0x2521c7]
 > /nix/store/3dvqpndk3sqxwjqlcbm39a0k20skhs8c-systemd-253.5/lib/systemd/libsystemd-shared-253.so(event_reset_time_relative+0xab) [0x25263b]
 > /nix/store/3dvqpndk3sqxwjqlcbm39a0k20skhs8c-systemd-253.5/lib/systemd/systemd-resolved(dns_query_go.part.0+0x2de) [0x1bbde]
 > /nix/store/3dvqpndk3sqxwjqlcbm39a0k20skhs8c-systemd-253.5/lib/systemd/systemd-resolved(bus_method_resolve_hostname+0x36f) [0x1449f]
 > /nix/store/3dvqpndk3sqxwjqlcbm39a0k20skhs8c-systemd-253.5/lib/systemd/libsystemd-shared-253.so(object_find_and_run+0x467) [0x1f2aa7]
 > /nix/store/3dvqpndk3sqxwjqlcbm39a0k20skhs8c-systemd-253.5/lib/systemd/libsystemd-shared-253.so(bus_process_object+0x12b) [0x1f3e9b]
 > /nix/store/3dvqpndk3sqxwjqlcbm39a0k20skhs8c-systemd-253.5/lib/systemd/libsystemd-shared-253.so(bus_process_internal+0xe66) [0x206746]
 > /nix/store/3dvqpndk3sqxwjqlcbm39a0k20skhs8c-systemd-253.5/lib/systemd/libsystemd-shared-253.so(io_callback+0x18) [0x2071f8]
 > /nix/store/3dvqpndk3sqxwjqlcbm39a0k20skhs8c-systemd-253.5/lib/systemd/libsystemd-shared-253.so(source_dispatch+0x4e0) [0x25c770]
 > /nix/store/3dvqpndk3sqxwjqlcbm39a0k20skhs8c-systemd-253.5/lib/systemd/libsystemd-shared-253.so(sd_event_dispatch+0x10d) [0x25ca5d]
 > /nix/store/3dvqpndk3sqxwjqlcbm39a0k20skhs8c-systemd-253.5/lib/systemd/libsystemd-shared-253.so(sd_event_run+0xb8) [0x25d178]
 > /nix/store/3dvqpndk3sqxwjqlcbm39a0k20skhs8c-systemd-253.5/lib/systemd/libsystemd-shared-253.so(sd_event_loop+0x57) [0x25d397]
 > /nix/store/3dvqpndk3sqxwjqlcbm39a0k20skhs8c-systemd-253.5/lib/systemd/systemd-resolved(main+0x300) [0xf170]
 > /nix/store/3n58xw4373jp0ljirf06d8077j15pc4j-glibc-2.37-8/lib/libc.so.6(__libc_start_call_main+0x7e) [0x23ace]
 > /nix/store/3n58xw4373jp0ljirf06d8077j15pc4j-glibc-2.37-8/lib/libc.so.6(__libc_start_main+0x89) [0x23b89]
 > /nix/store/3dvqpndk3sqxwjqlcbm39a0k20skhs8c-systemd-253.5/lib/systemd/systemd-resolved(_start+0x25) [0xf345]