conky crashes on docker container startup

[code1x1]

Issue

Conky crashes if i start docker container. The number of containers seams not to be the problem. It crashes if I start a single container or a container cluster with 10 or more.

I am able to restart conky while the container cluster is running.

Information

This happens on two machines

1. Debian Buster

00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor PCI Express Root Port (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C216 Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C216 Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C216 Chipset Family PCI Express Root Port 1 (rev c4)
00:1c.4 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 5 (rev c4)
00:1c.5 PCI bridge: Intel Corporation 82801 PCI Bridge (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation H77 Express Chipset LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 7 Series/C210 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C216 Chipset Family SMBus Controller (rev 04)
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Baffin [Polaris11] (rev ff)
01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Baffin HDMI/DP Audio [Radeon RX 550 640SP / RX 560/560X]
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 09)
04:00.0 PCI bridge: ASMedia Technology Inc. ASM1083/1085 PCIe to PCI Bridge (rev 03)

2. Ubuntu 18.04
   Ryzen 5 2600
   16 GB Ram
   rx 480 4GB

Config

➜ cat .conkyrc 
conky.config = {
-- Conky settings #
        background = false,
        update_interval = 1,

        cpu_avg_samples = 2,
        net_avg_samples = 2,

        override_utf8_locale = true,

        double_buffer = true,
        no_buffers = true,

        text_buffer_size = 2048,
    --imlib_cache_size 0

        temperature_unit = 'celsius',

-- With class override, gets images to display properly (black bg)
    own_window_argb_visual = true, 
        own_window_argb_value = 0,

-- Window specifications #
    own_window_class = override,
        own_window = true,
-- XFCE4 = desktop, sinon 'normal'
        own_window_type = 'desktop',
        own_window_transparent = true,

-- XFCE4 - undecorate not working
        own_window_hints = 'sticky,skip_taskbar,skip_pager,below',

        border_inner_margin = 0,
        border_outer_margin = 0,

        minimum_width = 520, 
    minimum_height = 600,
        maximum_width = 520,

        alignment = 'top_right',
        gap_x = 20,
        gap_y = 112,

-- Graphics settings #
        draw_shades = false,
        draw_outline = false,
        draw_borders = false,
        draw_graph_borders = false,

-- useless
        default_shade_color = 'red',
        default_outline_color = 'green',

-- Text settings #
        use_xft = true,
        override_utf8_locale = true,
    font = 'Play:normal:size=8',
        xftalpha = 0.9,
        uppercase = false,

-- TEXT color
        default_color = '#333333',

    color0 = '#165cc4',
    color1 = '#ffffff',

        lua_load = '~/.conky/conky-grapes/rings-v2_gen.lua',
        lua_draw_hook_pre = 'conky_main',

    diskio_avg_samples = 2
};

conky.text = [[
${voffset 12}${color1}${goto 106}${freq_g cpu0} Ghz${alignr 330}${hwmon 1 temp 1} °C
#${voffset 16}${color1}${goto 106}${freq_g cpu0} Ghz${alignr 330}${acpitemp} °C
## CPU ###################
${voffset 1}${goto 120}${color1}CPU 1${alignr 330}${color1}${cpu cpu1}%
${voffset 1}${goto 120}${color1}CPU 2${alignr 330}${color1}${cpu cpu2}%
${voffset 1}${goto 120}${color1}CPU 3${alignr 330}${color1}${cpu cpu3}%
${voffset 1}${goto 120}${color1}CPU 4${alignr 330}${color1}${cpu cpu4}%
${goto 49}${voffset 12}${color1}${top name 1}${alignr 306}${top cpu 1}%
${goto 50}${color1}${top name 2}${alignr 306}${top cpu 2}%
${goto 50}${color1}${top name 3}${alignr 306}${top cpu 3}%
${font Michroma:size=10}${color0}${goto 80}${voffset 4}CPU
## DISKIO ################
${voffset -130}${goto 378}${font}${color1}${top_io name 1}${alignr 30}${top_io io_write 1}%
${goto 378}${voffset 1}${color1}${top_io name 2}${alignr 30}${top_io io_write 2}%
${goto 378}${voffset 1}${color1}${top_io name 3}${alignr 30}${top_io io_write 3}%
${goto 370}${voffset 4}${color1}disk writes${alignr 30}${diskio_write}%
${goto 370}${color1}disk reads${alignr 30}${diskio_read}%
${font Michroma:size=10}${color0}${goto 418}${voffset 1}IO WAIT

## MEMORY ################
${font Michroma:size=10}${color0}${goto 420}${voffset 59}MEMORY
${voffset 8}${font}${goto 324}${voffset -2}${color1}${top_mem name 1}${alignr 40}${top_mem mem 1}%
${goto 324}${color1}${top_mem name 2}${alignr 40}${top_mem mem 2}%
${goto 324}${color1}${top_mem name 3}${alignr 40}${top_mem mem 3}%
${voffset 16}${goto 348}${color1}SWAP${alignr 40}${color1}${swap} / ${color1}${swapmax}
${voffset 1}${goto 348}${color1}RAM ${alignr 40}${color1}${mem} / ${color1}${memmax}

## FILESYSTEMS #################
${goto 70}${voffset -81}/${color1}${alignr 310}${fs_used /} / ${fs_size /}
${goto 70}${voffset -1}/boot${color1}${alignr 310}${fs_used /boot} / ${fs_size /boot}
${font Michroma:size=10}${color0}${goto 68}${voffset 18}FILESYSTEM

## INTERNET ################
${font Michroma:size=10}${color0}${voffset 16}${goto 344}INTERNET INFO
${font}${color1}${alignr 54}${voffset -2}Interface    enp3s0
${font}${color1}${goto 298}${voffset 2}Up${goto 370}${color1}${totalup enp3s0} / ${color1}${upspeed enp3s0}
${goto 298}${color1}Down${goto 370}${color1}${totaldown enp3s0} / ${color1}${downspeed enp3s0}
${goto 300}${voffset 4}Local IP${goto 370}${addr enp3s0}
${goto 300}${voffset 0}Public IP${goto 370}${execi 3600 wget -q -O - checkip.dyndns.org | sed -e 's/[^[:digit:]\|.]//g'}
${voffset -24}

## TIME ########################
${font Michroma:size=10}${alignr 300}${voffset -50}${color0}${time %a} ${color0}${time %x}
${font Michroma:size=18}${alignr 318}${color1}${voffset -4}${time %H}:${time %M}
## BATTERY #####################
#{{ BATTERY }}
## OS
${font Michroma:bold:size=11}${color0}${voffset 90}${alignc}${execi 3600 awk -F '=' '/PRETTY_NAME/ { print $2 }' /etc/os-release | tr -d '"'}
]];

Backtrace.

(gdb) run -c ~/.conkyrc 
Starting program: /usr/bin/conky -c ~/.conkyrc
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
conky: desktop window (200014) is subwindow of root window (3a0)
conky: window type - desktop
conky: drawing to created window (0x1600002)
conky: drawing to double buffer
[New Thread 0x7ffff110a700 (LWP 23197)]
[New Thread 0x7ffff0909700 (LWP 23198)]
[Detaching after fork from child process 23199]
[Detaching after fork from child process 23200]
[New Thread 0x7ffff0108700 (LWP 23202)]
[New Thread 0x7fffef907700 (LWP 23204)]
[New Thread 0x7fffef106700 (LWP 23205)]
[New Thread 0x7fffee905700 (LWP 23206)]
[New Thread 0x7fffee104700 (LWP 23207)]
[New Thread 0x7fffed903700 (LWP 23208)]
conky: too many interfaces used (limit is 64)
[Thread 0x7ffff110a700 (LWP 23197) exited]
[Thread 0x7ffff0909700 (LWP 23198) exited]
terminate called after throwing an instance of 'std::system_error'
  what():  Resource deadlock avoided

Thread 4 "conky" received signal SIGABRT, Aborted.
[Switching to Thread 0x7ffff0108700 (LWP 23202)]
__GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
50      ../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) bt full
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
        set = {__val = {0, 140737220998648, 0, 0, 0, 18374967954648334080, 0, 2305878331024736256, 0, 
            0, 0, 0, 0, 0, 0, 0}}
        pid = <optimized out>
        tid = <optimized out>
        ret = <optimized out>
#1  0x00007ffff67ed535 in __GI_abort () at abort.c:79
        save_stage = 1
        act = {__sigaction_handler = {sa_handler = 0x0, sa_sigaction = 0x0}, sa_mask = {__val = {
              0 <repeats 16 times>}}, sa_flags = 0, sa_restorer = 0x7fffe8003cb8}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007ffff6bb7983 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6
No symbol table info available.
#3  0x00007ffff6bbd8c6 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6
No symbol table info available.
#4  0x00007ffff6bbd901 in std::terminate() () from /lib/x86_64-linux-gnu/libstdc++.so.6
No symbol table info available.
#5  0x00007ffff6bbdb34 in __cxa_throw () from /lib/x86_64-linux-gnu/libstdc++.so.6
No symbol table info available.
#6  0x00007ffff6bb9a55 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6
No symbol table info available.
#7  0x00007ffff6be6d6c in std::thread::join() () from /lib/x86_64-linux-gnu/libstdc++.so.6
No symbol table info available.
#8  0x00005555555c3fb3 in conky::priv::callback_base::stop() ()
No symbol table info available.
#9  0x00005555555a3d49 in conky::priv::callback_base::deleter(conky::priv::callback_base*) ()
No symbol table info available.
#10 0x00005555555c3e65 in ?? ()
No symbol table info available.
#11 0x00005555555c4650 in std::_Hashtable<conky::callback_handle<conky::priv::callback_base>, conky::callback_handle<conky::priv::callback_base>, std::allocator<conky::callback_handle<conky::priv::callback_base> >, std::__detail::_Identity, bool (*)(conky::callback_handle<conky::priv::callback_base> const&, conky::callback_handle<conky::priv::callback_base> const&), unsigned long (*)(conky::callback_handle<conky::priv::callback_base> const&), std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, true, true> >::~_Hashtable()
    ()
No symbol table info available.
#12 0x00007ffff6804d8c in __run_exit_handlers (status=1, listp=0x7ffff6986718 <__exit_funcs>, 
    run_list_atexit=run_list_atexit@entry=true, run_dtors=run_dtors@entry=true) at exit.c:108
        atfct = <optimized out>
        onfct = <optimized out>
        cxafct = <optimized out>
        f = <optimized out>
        new_exitfn_called = 121
        cur = 0x55555588d200
#13 0x00007ffff6804eba in __GI_exit (status=<optimized out>) at exit.c:139
No locals.
#14 0x00005555555ad26f in get_net_stat(char const*, void*, void*) ()
No symbol table info available.
#15 0x00005555555ca120 in update_net_stats() ()
No symbol table info available.
#16 0x00005555555c3ee3 in conky::priv::callback_base::start_routine() ()
--Type <RET> for more, q to quit, c to continue without paging--c
No symbol table info available.
#17 0x00007ffff6be6b2f in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6
No symbol table info available.
#18 0x00007ffff7f8bfa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
        ret = <optimized out>
        pd = <optimized out>
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140737221003008, -7005558003763052133, 140737488345278, 140737488345279, 140737221003008, 140737488345664, 7005527599515369883, 7005540456660271515}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#19 0x00007ffff68c44cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
(gdb)