The USB hub is brand new. Honestly, I don't even know how to trigger
this bug; it happens completely randomly.
The chip does not overheat. I performed a stress test using iPerf,
where the router acted as the server and my machine as the client,
receiving traffic at 1 Gbps with 10 parallel streams. Simultaneously,
I kept a USB flash drive in the hub, continuously reading data from
it. The system remained stable for over 30 minutes without any issues,
then I terminated the test.
This specific crash today occurred right after downloading 900MB of
packages. Apologies for the previous log; this time I have attached
the full journalctl log for better context.

вт, 27 янв. 2026 г. в 16:04, Greg KH [off-list ref]:

On Tue, Jan 27, 2026 at 03:36:44PM +0300, Ivan wrote:

quoted

Hello
I am reporting a persistent hardware hang issue with the r8152 driver
on an Ryzen 5 7520u (Mendocino) using a usb type c hub.

The Ethernet connection can drop at any time. After the connection
fails, the Ethernet adapter itself disappears from the system, but the
other USB devices in the hub continue to work.
USB_QUIRK_NO_LPM (0x400) is enabled by default, but it doesn't help.

Environment:
CPU: Ryzen 5 7520u (Mendocino)
Kernel: 6.18.6 (arch linux), 6.12 lts (gentoo)
Ethernet chip: rtl8153 0bda:8153, bcdDevice 31.00

I have attached the relevant journalctl logs and the lsusb -vd for this device

There's no timing in the log, so it's a bit hard to determine this, but
it looks like the device is locking up and there's nothing we can do
about it from the kernel side:

asus kernel: r8152 4-1.1:1.0 enp3s0f4u1u1: carrier on
asus kernel: r8152-cfgselector 4-1.1: Failed to read 4 bytes at 0xe820/0x0133 (-110)
asus kernel: xhci_hcd 0000:03:00.4: Timeout while waiting for setup device command
asus kernel: r8152 4-1.1:1.0 enp3s0f4u1u1: NETDEV WATCHDOG: CPU: 4: transmit queue 0 timed out 6129 ms
asus kernel: r8152 4-1.1:1.0 enp3s0f4u1u1: Tx timeout
asus kernel: xhci_hcd 0000:03:00.4: Timeout while waiting for setup device command
asus kernel: r8152-cfgselector 4-1.1: device not accepting address 4, error -62
asus kernel: r8152 4-1.1:1.0 enp3s0f4u1u1: Get ether addr fail
asus kernel: r8152-cfgselector 4-1.1: USB disconnect, device number 4

So perhaps the chip itself is the problem?

sorry it's a bit hard to determine what is really happening here but it
seems like a flaky device.  Is it overheating?

thanks,

greg k-h