I don't know if this will warrant a new thread, but I'm experiencing this as well (searched for `Reset failed, rc=VERR_NOT_SUPPORTED errno=19`), however while OP is about a comm port, mine is about an Android device in fastboot mode.
The key part is:
*****
00:10:58.292200 VUSB: Attached '00007f02f049dbd0[proxy 22b8:2e80]' to port 1 on RootHub#1 (HighSpeed)
00:11:01.517842 usb-linux: Reset failed, rc=VERR_NOT_SUPPORTED errno=19.
00:11:02.039058 VUSB: Detached '00007f02f049dbd0[proxy 22b8:2e80]' from port 1 on RootHub#1
00:11:04.816988 VUSB: Attached '00007f02f049e890[proxy 22b8:2e80]' to port 1 on RootHub#1 (HighSpeed)
00:11:07.551748 VMMDev: vmmDevHeartbeatFlatlinedTimer: Guest seems to be unresponsive. Last heartbeat received 4 seconds ago
00:11:08.034814 usb-linux: Reset failed, rc=VERR_NOT_SUPPORTED errno=19.
00:11:08.035064 VMMDev: GuestHeartBeat: Guest is alive (gone 4 483 339 663 ns)
00:11:08.535537 VUSB: Detached '00007f02f049e890[proxy 22b8:2e80]' from port 1 on RootHub#1
00:11:11.218717 VUSB: Attached '00007f02f049eba0[proxy 22b8:2e80]' to port 1 on RootHub#1 (HighSpeed)
*****
which just repeats as my device keeps rebooting into fastboot from fastboot. And this only happens when attached to virtualbox.
I also made sure that `adb` was NOT running on my host (`kill-server`).
`id`: `...108(vboxusers)...`
7.0.10r158379
*****
Pack no. 0: Oracle VM VirtualBox Extension Pack
Version: 7.0.6
Revision: 155176
Edition:
Description: Oracle Cloud Infrastructure integration, Host Webcam, VirtualBox RDP, PXE ROM, Disk Encryption, NVMe, full VM encryption.
VRDE Module: VBoxVRDP
Crypto Module: VBoxPuelCrypto
Usable: true
Why unusable:
*****
*****
UUID: eb5aad1c-bd7a-4a95-8cb1-2c5fc1f15ae8
VendorId: 0x22b8 (22B8)
ProductId: 0x2e80 (2E80)
Revision: 1.0 (0100)
Port: 2
USB version/speed: 2/High
Manufacturer: Motorola Mobility LLC.
Product: Fastboot milanf S
SerialNumber: <sanitized>
Address: sysfs:/sys/devices/pci0000:00/0000:00:14.0/usb3/3-1/3-1.3//device:/dev/vboxusb/003/124
Current State: Available
*****
Global USB Device Filters: <none>
*****
Name: Windows 10 Local
Encryption: disabled
Groups: /
Guest OS: Windows 10 (64-bit)
UUID: 3c1754ba-c99c-42b7-9e27-d3a104c668ae
Config file: /<pathTo>.vbox
Snapshot folder: /<pathTo>/snapshots/
Log folder: /<pathTo>/Logs
Hardware UUID: 3c1754ba-c99c-42b7-9e27-d3a104c668ae
Memory size: 3072MB
Page Fusion: disabled
VRAM size: 128MB
CPU exec cap: 100%
HPET: disabled
CPUProfile: host
Chipset: ich9
Firmware: BIOS
Number of CPUs: 2
PAE: enabled
Long Mode: enabled
Triple Fault Reset: disabled
APIC: enabled
X2APIC: disabled
Nested VT-x/AMD-V: disabled
CPUID Portability Level: 0
CPUID overrides: None
Boot menu mode: message and menu
Boot Device 1: DVD
Boot Device 2: HardDisk
Boot Device 3: Not Assigned
Boot Device 4: Not Assigned
ACPI: enabled
IOAPIC: enabled
BIOS APIC mode: APIC
Time offset: 0ms
BIOS NVRAM File: /<pathTo>.nvram
RTC: UTC
Hardware Virtualization: enabled
Nested Paging: enabled
Large Pages: disabled
VT-x VPID: enabled
VT-x Unrestricted Exec.: enabled
AMD-V Virt. Vmsave/Vmload: enabled
IOMMU: None
Paravirt. Provider: Default
Effective Paravirt. Prov.: HyperV
State: powered off (since 2023-10-08T00:44:38.000000000)
Graphics Controller: VBoxSVGA
Monitor count: 1
3D Acceleration: disabled
2D Video Acceleration: disabled
Teleporter Enabled: disabled
Teleporter Port: 0
Teleporter Address:
Teleporter Password:
Tracing Enabled: disabled
Allow Tracing to Access VM: disabled
Tracing Configuration:
Autostart Enabled: disabled
Autostart Delay: 0
Default Frontend:
VM process priority: default
Storage Controllers:
#0: 'SATA', Type: IntelAhci, Instance: 0, Ports: 2 (max 30), Bootable
Port 0, Unit 0: UUID: 39f18d64-f7b5-413f-84c0-426f5cdceca7
Location: "/<pathTo>.vdi"
Port 1, Unit 0: UUID: 47dc2429-3b2d-4bb2-a5cb-7535e658f9e6
Location: "/usr/lib/virtualbox/additions/VBoxGuestAdditions.iso"
NIC 1: MAC: 0800278E5DF6, Attachment: Bridged Interface 'wlp3s0', Cable connected: on, Trace: off (file: none), Type: 82540EM, Reported speed: 0 Mbps, Boot priority: 0, Promisc Policy: deny, Bandwidth group: none
NIC 2: disabled
NIC 3: disabled
NIC 4: disabled
NIC 5: disabled
NIC 6: disabled
NIC 7: disabled
NIC 8: disabled
NIC 9: disabled
NIC 10: disabled
NIC 11: disabled
NIC 12: disabled
NIC 13: disabled
NIC 14: disabled
NIC 15: disabled
NIC 16: disabled
NIC 17: disabled
NIC 18: disabled
NIC 19: disabled
NIC 20: disabled
NIC 21: disabled
NIC 22: disabled
NIC 23: disabled
NIC 24: disabled
NIC 25: disabled
NIC 26: disabled
NIC 27: disabled
NIC 28: disabled
NIC 29: disabled
NIC 30: disabled
NIC 31: disabled
NIC 32: disabled
NIC 33: disabled
NIC 34: disabled
NIC 35: disabled
NIC 36: disabled
Pointing Device: PS/2 Mouse
Keyboard Device: PS/2 Keyboard
UART 1: disabled
UART 2: disabled
UART 3: disabled
UART 4: disabled
LPT 1: disabled
LPT 2: disabled
Audio: enabled (Driver: PulseAudio, Controller: HDA, Codec: STAC9221)
Audio playback: enabled
Audio capture: enabled
Clipboard Mode: HostToGuest
Drag and drop Mode: disabled
VRDE: disabled
OHCI USB: disabled
EHCI USB: disabled
xHCI USB: enabled
USB Device Filters:
Index: 0
Active: yes
Name: stylus 22b8:2e80
VendorId: 22b8
ProductId:
Revision:
Manufacturer:
Product:
Remote: 0
Serial Number:
Bandwidth groups: <none>
Shared folders: <none>
Recording enabled: no
Recording screens: 1
Screen 0:
Enabled: yes
ID: 0
Record video: yes
Destination: File
File: /<pathTo>-screen0.webm
Options: vc_enabled=true,ac_enabled=false,ac_profile=med
Video dimensions: 1024x768
Video rate: 512kbps
Video FPS: 25fps
* Guest:
Configured memory balloon: 0MB
*****Connected straight to the rear of the motherboard.