[FAILED] Failed unmounting /run/live/medium.
[ 7530.235167] watchdog: watchdog0: watchdog did not stop!
[ 7530.489779] [2705]: Failed to unmount /run/live/medium: Device or resource busy
[ 7530.501832] systemd-shutdown[1]: Could not detach loopback /dev/loop0: Device or resource busy
[ 7530.666912] systemd-shutdown[1]: Failed to finalize file systems, loop devices, ignoring.
[ 7530.786584] ------------[ cut here ]------------
[ 7530.791228] __dma_async_device_channel_unregister called while 2 clients hold a reference
[ 7530.799456] WARNING: CPU: 0 PID: 1 at drivers/dma/dmaengine.c:1110 __dma_async_device_channel_unregister+0xaa/0xc0
[ 7530.809808] Modules linked in: lp parport_pc edd joydev st sr_mod ppdev parport nvram amd64_edac_mod edac_mce_amd kvm_amd kvm irqbypass ghash_clmulni_intel aes]
[ 7530.890512] CPU: 0 PID: 1 Comm: systemd-shutdow Not tainted 5.10.0-10-amd64 #1 Debian 5.10.84-1
[ 7530.899221] Hardware name: PC Engines apu2/apu2, BIOS v4.11.0.1 12/09/2019
[ 7530.906107] RIP: 0010:__dma_async_device_channel_unregister+0xaa/0xc0
[ 7530.912561] Code: 8b 56 50 85 d2 74 92 80 3d d0 b2 2a 01 00 75 89 48 c7 c6 60 9f 2c a7 48 c7 c7 70 48 54 a7 c6 05 b9 b2 2a 01 01 e8 b9 6d 2e 00 <0f> 0b e9 68 f0
[ 7530.931330] RSP: 0018:ffffa4a340023d30 EFLAGS: 00010286
[ 7530.936565] RAX: 0000000000000000 RBX: ffff966d8509d960 RCX: ffffffffa7ab33c8
[ 7530.943704] RDX: c0000000ffffefff RSI: 00000000ffffefff RDI: 0000000000000246
[ 7530.950846] RBP: ffff966d850a1898 R08: 0000000000000000 R09: ffffa4a340023b50
[ 7530.957988] R10: ffffa4a340023b48 R11: ffffffffa7acb408 R12: ffff966d8509d970
[ 7530.965140] R13: ffff966d831f2138 R14: 00000000fee1dead R15: 0000000000000000
[ 7530.972291] FS:  00007f66ee280900(0000) GS:ffff966d9ac00000(0000) knlGS:0000000000000000
[ 7530.980384] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7530.986139] CR2: 00007f66eebd95a0 CR3: 0000000107c82000 CR4: 00000000000406f0
[ 7530.993282] Call Trace:
[ 7530.995748]  dma_async_device_unregister+0x43/0x110
[ 7531.000654]  ccp_dmaengine_unregister+0x20/0x40 [ccp]
[ 7531.005728]  ccp_destroy+0x15/0x1f0 [ccp]
[ 7531.009775]  sp_destroy+0x1a/0x80 [ccp]
[ 7531.013642]  pci_device_shutdown+0x34/0x60
[ 7531.017762]  device_shutdown+0x15b/0x1c0
[ 7531.021705]  __do_sys_reboot.cold+0x2f/0x5b
[ 7531.025908]  ? vfs_writev+0xc1/0x140
[ 7531.029503]  ? do_writev+0x6b/0x110
[ 7531.033006]  do_syscall_64+0x33/0x80
[ 7531.036601]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 7531.041671] RIP: 0033:0x7f66eeb0fc13
[ 7531.045267] Code: 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 89 fa be 69 19 12 28 bf ad de e1 fe b8 a9 00 00 00 0f 05 <48> 3d 00 f0 f8
[ 7531.064031] RSP: 002b:00007ffd676ca118 EFLAGS: 00000206 ORIG_RAX: 00000000000000a9
[ 7531.071614] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f66eeb0fc13
[ 7531.078761] RDX: 0000000001234567 RSI: 0000000028121969 RDI: 00000000fee1dead
[ 7531.085911] RBP: 00007f66ee2807b0 R08: 0000000000000802 R09: 00007ffd676c9520
[ 7531.093057] R10: 00007f66ee2807b0 R11: 0000000000000206 R12: 0000000000000000
[ 7531.100215] R13: 00005588b292ebf0 R14: 0000000000000000 R15: 00000000fffffff0
[ 7531.107365] ---[ end trace 5132a94cf3f4322e ]---
[ 7531.114942] reboot: Restarting system