Tower keeps disconnecting USB device


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Hey Guys

 

I'm pretty new to Unraid, and something that has caught my attention is the log in the top right corner.

It shows that unraid finds a usb hub and then disconnects..

It is doing this all day, 24/7 anyone know what is causing this ?

Apr 24 19:18:59 Tower kernel: usb 4-3: USB disconnect, device number 26
Apr 24 19:18:59 Tower kernel: usb 4-3: new high-speed USB device number 27 using xhci_hcd
Apr 24 19:18:59 Tower kernel: hub 4-3:1.0: USB hub found
Apr 24 19:18:59 Tower kernel: hub 4-3:1.0: 2 ports detected
Apr 24 19:20:04 Tower kernel: usb 4-3: USB disconnect, device number 27
Apr 24 19:20:04 Tower kernel: usb 4-3: new high-speed USB device number 28 using xhci_hcd
Apr 24 19:20:05 Tower kernel: hub 4-3:1.0: USB hub found
Apr 24 19:20:05 Tower kernel: hub 4-3:1.0: 2 ports detected
Apr 24 19:20:54 Tower kernel: usb 4-3: USB disconnect, device number 28
Apr 24 19:20:55 Tower kernel: usb 4-3: new high-speed USB device number 29 using xhci_hcd
Apr 24 19:20:55 Tower kernel: hub 4-3:1.0: USB hub found
Apr 24 19:20:55 Tower kernel: hub 4-3:1.0: 2 ports detected
Apr 24 19:21:45 Tower kernel: usb 4-3: USB disconnect, device number 29
Apr 24 19:21:45 Tower kernel: usb 4-3: new high-speed USB device number 30 using xhci_hcd
Apr 24 19:21:45 Tower kernel: hub 4-3:1.0: USB hub found
Apr 24 19:21:45 Tower kernel: hub 4-3:1.0: 2 ports detected

 

Everything seems to be working fine.

 

The hardware is a HP Proliant ML310e v2

Xeon 1240v3

32GB Ram

4 * WD red 2tb

 

Any logs I can pull to help troubleshooting this. ?

Oh and Unraid is updated to newest version

 

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You can get the files needed for the Gurus by going to 'Tools'   >>>  'Diagnostics'  and that will download a zipped file to your download folder of your browser.  Upload that file with your next post. 

 

You can also tell us what USB devices are connected to your server.  (You have a least one-- your Flash Drive with unRAID on it.)  By the way, it is best to use a UBS2 (NOT a USB3) port for your boot drive.   The speed of the Flash Drive is not that important as unRAID runs completely from RAM from the time it first boots.

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You have three syslogs files (because the master syslog is being filled with those USB events) in your diagnostics file but the initial one occurred BEFORE the first entry in the earliest log file.  You may have to reboot the server and grab a new diagnostics file after the first few occurrences .  What we need to see if there is a clue to what triggered the first one. 

 

By the way, are you passing a USB port through to a Docker or VM?

 

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41 minutes ago, Kaltar said:

Also, I'd like to know, why does my array not automaticly come online when I reboot.

 

Best guess is this:

Apr 24 22:18:51 Tower emhttp: err: get_limetech_time: -2 (7) 0

 

Followed by

 

Apr 24 22:18:51 Tower kernel: mdcmd (28): import 27
Apr 24 22:18:51 Tower kernel: mdcmd (29): import 28
Apr 24 22:18:51 Tower kernel: mdcmd (30): import 29
Apr 24 22:18:51 Tower kernel: md: import_slot: 29 empty
Apr 24 22:18:51 Tower emhttp: import flash device: sda
Apr 24 22:18:51 Tower emhttp: shcmd (13): /etc/rc.d/rc.nfsd start |& logger
Apr 24 22:18:51 Tower root: Starting NFS server daemons:
Apr 24 22:18:51 Tower root:   /usr/sbin/exportfs -r
Apr 24 22:18:51 Tower root:   /usr/sbin/rpc.nfsd 8
Apr 24 22:18:51 Tower dhcpcd[1669]: br0: offered 192.168.1.100 from 192.168.1.1

your server didn't get a valid IP until after emhttp started...., and internet access is required for Trial.  Since it didn't have it when emhttp loaded, emhttp wouldn't autostart the array.  Won't be an issue if/when you purchase.  (But, setting a static IP either in unRaid or in your router would probably fix that)

 

No real good answer as to the continual usb hubs being found.  A work around would be to disable one at a time the ports in your bios until your find the offending controller and then disable it.  As an aside, I had a KVM that also did the exact same thing...

 

While by itself the continual disconnects / reconnects won't cause any issue, the logging spam will...

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  • 3 years later...

I seem to be having similar issues:

Mar  1 05:28:57 Tower kernel: usb 1-2: USB disconnect, device number 44
Mar  1 05:28:57 Tower kernel: usb 1-2: new full-speed USB device number 45 using xhci_hcd
Mar  1 05:28:57 Tower kernel: cdc_acm 1-2:1.0: ttyACM0: USB ACM device
Mar  1 05:29:01 Tower kernel: usb 1-2: USB disconnect, device number 45
Mar  1 05:29:01 Tower kernel: usb 1-2: new full-speed USB device number 46 using xhci_hcd
Mar  1 05:29:01 Tower kernel: cdc_acm 1-2:1.0: ttyACM0: USB ACM device

 

Any Ideas?

 

In my case, this is the ConbeeII (ZigBee Controller) on Unraid:

 

 

I unplugged it and the errors stopped.

Still not certain of the solution to fix the issue.

 

Edited by -jim
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  • 1 month later...
On 3/1/2021 at 12:21 PM, -jim said:

I seem to be having similar issues:


Mar  1 05:28:57 Tower kernel: usb 1-2: USB disconnect, device number 44
Mar  1 05:28:57 Tower kernel: usb 1-2: new full-speed USB device number 45 using xhci_hcd
Mar  1 05:28:57 Tower kernel: cdc_acm 1-2:1.0: ttyACM0: USB ACM device
Mar  1 05:29:01 Tower kernel: usb 1-2: USB disconnect, device number 45
Mar  1 05:29:01 Tower kernel: usb 1-2: new full-speed USB device number 46 using xhci_hcd
Mar  1 05:29:01 Tower kernel: cdc_acm 1-2:1.0: ttyACM0: USB ACM device

 

Any Ideas?

 

In my case, this is the ConbeeII (ZigBee Controller) on Unraid:

 

 

I unplugged it and the errors stopped.

Still not certain of the solution to fix the issue.

 

Exact same issue here with conbee II and I have not been able to solve it either..

 

My workaround at the moment is to reboot my server every second or third day....

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