Here's some more info - it first crashes and then starts logging these messages:
Jun 20 19:37:31 kernel: ------------[ cut here ]------------
Jun 20 19:37:31 kernel: NETDEV WATCHDOG: enp5s0f1 (r8169): transmit queue 0
timed out
Jun 20 19:37:31 kernel: WARNING: CPU: 7 PID: 0 at net/sched/sch_generic.c:525
dev_watchdog+0x20b/0x220
Jun 20 19:37:31 kernel: Modules linked in: xt_recent nft_limit nft_log ipt_REJECT nf_reject_ipv4 xt_limit xt_multiport
xt_conntrack xt_hashlimit xt_addrtype xt_mark nft_chain_nat xt_comment xt_CT xt_owner xt_tcpudp nft_compat xt_NFLOG
xt_LOG nf_log_syslog nf_nat_tftp nf_nat_snmp_basic nf_conntrack_snmp nf_nat_sip nf_nat_pptp nf_nat_irc nf_nat_h323
nf_nat_ftp nf_nat_amanda ts_kmp nf_conntrack_amanda nf_nat nf_conntrack_sane nf_conntrack_tftp nf_conntrack_sip
nf_conntrack_pptp nf_conntrack_netlink nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_irc nf_conntrack_h323
nf_conntrack_ftp nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 rfcomm vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) nf_tables
qrtr cmac algif_hash algif_skcipher af_alg bnep nfnetlink_log nfnetlink nvidia_drm(POE) nvidia_modeset(POE)
intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass
ghash_clmulni_intel btusb btrtl btbcm aesni_intel btintel btmtk crypto_simd cryptd iwlmvm bluetooth snd_hda_codec_realtek
Jun 20 19:37:31 kernel: binfmt_misc mac80211 snd_hda_codec_generic snd_hda_codec_hdmi jitterentropy_rng snd_hda_intel
snd_intel_dspcfg snd_intel_sdw_acpi uvcvideo sha512_ssse3 snd_hda_codec sha512_generic videobuf2_vmalloc nls_ascii ctr
uvc nls_cp437 snd_hda_core libarc4 videobuf2_memops videobuf2_v4l2 vfat rapl fat iwlwifi drbg snd_hwdep videodev
asus_nb_wmi intel_cstate ansi_cprng asus_wmi videobuf2_common snd_pcm iTCO_wdt ledtrig_audio intel_pmc_bxt cfg80211
sparse_keymap iTCO_vendor_support ecdh_generic snd_timer platform_profile nvidia(POE) intel_uncore ecc mc at24 pcspkr
watchdog rfkill snd soundcore ac asus_wireless joydev evdev serio_raw sg msr parport_pc ppdev lp parport fuse dm_mod
loop efi_pstore configfs ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 btrfs blake2b_generic efivarfs raid10
raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c crc32c_generic raid1 raid0
multipath linear md_mod hid_logitech_hidpp hid_logitech_dj hid_generic sd_mod usbhid t10_pi hid sr_mod cdrom
Jun 20 19:37:31 kernel: crc64_rocksoft crc64 crc_t10dif crct10dif_generic i915 drm_buddy i2c_algo_bit
drm_display_helper ahci libahci xhci_pci libata cec xhci_hcd rc_core ttm rtsx_pci_sdmmc mmc_core scsi_mod r8169
drm_kms_helper ehci_pci ehci_hcd crct10dif_pclmul crct10dif_common realtek i2c_i801 crc32_pclmul mdio_devres drm
crc32c_intel psmouse usbcore libphy rtsx_pci i2c_smbus mxm_wmi lpc_ich scsi_common usb_common video battery wmi button
Jun 20 19:37:31 kernel: CPU: 7 PID: 0 Comm: swapper/7 Tainted: P OE
6.3.0-1-amd64 #1 Debian 6.3.7-1
Jun 20 19:37:31 kernel: Hardware name: ASUSTeK COMPUTER INC. N551JM/N551JM,
BIOS N551JM.205 02/13/2015
Jun 20 19:37:31 kernel: RIP: 0010:dev_watchdog+0x20b/0x220
Jun 20 19:37:31 kernel: Code: 00 e9 40 ff ff ff 48 89 df c6 05 e8 0c 06 01 01 e8 fa 52 fa ff 44 89 e9 48 89 de 48 c7 c7
08 e2 8e 87 48 89 c2 e8 b5 40 71 ff <0f> 0b e9 22 ff ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 90
Jun 20 19:37:31 kernel: RSP: 0018:ffffb34e40278e80 EFLAGS: 00010282
Jun 20 19:37:31 kernel: RAX: 0000000000000000 RBX: ffff9af113330000 RCX:
0000000000000000
Jun 20 19:37:31 kernel: RDX: 0000000000000104 RSI: ffffffff878371d5 RDI:
00000000ffffffff
Jun 20 19:37:31 kernel: RBP: ffff9af1133304c8 R08: 0000000000000000 R09:
ffffb34e40278d10
Jun 20 19:37:31 kernel: R10: 0000000000000003 R11: ffffffff87ed1fe8 R12:
ffff9af11333041c
Jun 20 19:37:31 kernel: R13: 0000000000000000 R14: ffffb34e40278ef8 R15:
ffff9af41f3e1d00
Jun 20 19:37:31 kernel: FS: 0000000000000000(0000) GS:ffff9af41f3c0000(0000)
knlGS:0000000000000000
Jun 20 19:37:31 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jun 20 19:37:31 kernel: CR2: 00007f46faff4000 CR3: 000000024b020002 CR4:
00000000001706e0
Jun 20 19:37:31 kernel: Call Trace:
Jun 20 19:37:31 kernel: <IRQ>
Jun 20 19:37:31 kernel: ? dev_watchdog+0x20b/0x220
Jun 20 19:37:31 kernel: ? __warn+0x81/0x130
Jun 20 19:37:31 kernel: ? dev_watchdog+0x20b/0x220
Jun 20 19:37:31 kernel: ? report_bug+0x191/0x1c0
Jun 20 19:37:31 kernel: ? prb_read_valid+0x1b/0x30
Jun 20 19:37:31 kernel: ? handle_bug+0x41/0x70
Jun 20 19:37:31 kernel: ? exc_invalid_op+0x17/0x70
Jun 20 19:37:31 kernel: ? asm_exc_invalid_op+0x1a/0x20
Jun 20 19:37:31 kernel: ? dev_watchdog+0x20b/0x220
Jun 20 19:37:31 kernel: ? __pfx_dev_watchdog+0x10/0x10
Jun 20 19:37:31 kernel: call_timer_fn+0x27/0x130
Jun 20 19:37:31 kernel: ? __pfx_dev_watchdog+0x10/0x10
Jun 20 19:37:31 kernel: __run_timers+0x222/0x2c0
Jun 20 19:37:31 kernel: run_timer_softirq+0x2f/0x50
Jun 20 19:37:31 kernel: __do_softirq+0xf4/0x301
Jun 20 19:37:31 kernel: __irq_exit_rcu+0xb5/0x130
Jun 20 19:37:31 kernel: sysvec_apic_timer_interrupt+0xa2/0xd0
Jun 20 19:37:31 kernel: </IRQ>
Jun 20 19:37:31 kernel: <TASK>
Jun 20 19:37:31 kernel: asm_sysvec_apic_timer_interrupt+0x1a/0x20
Jun 20 19:37:31 kernel: RIP: 0010:cpuidle_enter_state+0xcc/0x440
Jun 20 19:37:31 kernel: Code: 3a 4e 5a ff e8 b5 f0 ff ff 8b 53 04 49 89 c5 0f 1f 44 00 00 31 ff e8 83 5a 59 ff 45 84 ff
0f 85 57 02 00 00 fb 0f 1f 44 00 00 <45> 85 f6 0f 88 85 01 00 00 49 63 d6 48 8d 04 52 48 8d 04 82 49 8d
Jun 20 19:37:31 kernel: RSP: 0018:ffffb34e40103e90 EFLAGS: 00000246
Jun 20 19:37:31 kernel: RAX: ffff9af41f3c0000 RBX: ffffd34e3fde6100 RCX:
0000000000000000
Jun 20 19:37:31 kernel: RDX: 0000000000000007 RSI: ffffffff878371d5 RDI:
ffffffff87823e93
Jun 20 19:37:31 kernel: RBP: 0000000000000003 R08: 0000000000000004 R09:
0000000033518d91
Jun 20 19:37:31 kernel: R10: 0000000000000018 R11: 000000000000107c R12:
ffffffff87f96600
Jun 20 19:37:31 kernel: R13: 000000a0288f1518 R14: 0000000000000003 R15:
0000000000000000
Jun 20 19:37:31 kernel: cpuidle_enter+0x2d/0x40
Jun 20 19:37:31 kernel: do_idle+0x1da/0x260
Jun 20 19:37:31 kernel: cpu_startup_entry+0x1d/0x20
Jun 20 19:37:31 kernel: start_secondary+0x11e/0x140
Jun 20 19:37:31 kernel: secondary_startup_64_no_verify+0xe5/0xeb
Jun 20 19:37:31 kernel: </TASK>
Jun 20 19:37:31 kernel: ---[ end trace 0000000000000000 ]---
Jun 20 19:37:31 kernel: r8169 0000:05:00.1: can't disable ASPM; OS doesn't have
ASPM control
Jun 20 19:37:31 kernel: r8169 0000:05:00.1 enp5s0f1: rtl_rxtx_empty_cond == 0
(loop: 42, delay: 100).
Jun 20 19:38:21 kernel: r8169 0000:05:00.1: can't disable ASPM; OS doesn't have
ASPM control
Jun 20 19:38:21 kernel: r8169 0000:05:00.1 enp5s0f1: rtl_rxtx_empty_cond == 0
(loop: 42, delay: 100).