From owner-freebsd-stable@freebsd.org  Mon Aug  7 17:11:37 2017
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 Mon,  7 Aug 2017 19:11:34 +0200 (CEST)
Subject: Re: [USB] hang after upgrade from 11.0 to 11.1, ZFS or callout()
 related?
To: Michael Schmiedgen <schmiedgen@takwa.de>, freebsd-stable@freebsd.org,
 freebsd-usb@freebsd.org
References: <b9ee1cd5-a7ee-d484-dde6-fe1ce8a4eb7a@takwa.de>
 <7a382dbf-5211-18b0-d6c4-f2abb3a327b6@selasky.org>
 <2f3f1931-cfbc-124c-3ecc-6e8b71cc7b52@takwa.de>
From: Hans Petter Selasky <hps@selasky.org>
Message-ID: <d52439fa-059f-adae-35d7-65b19ba7818c@selasky.org>
Date: Mon, 7 Aug 2017 19:09:17 +0200
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On 08/07/17 18:28, Michael Schmiedgen wrote:
> dmesg:
> 
> Aug  7 18:26:34 antares kernel: usbd_pipe_enter: enter
> Aug  7 18:26:34 antares kernel: usbd_pipe_enter: enter
> Aug  7 18:26:34 antares kernel: usbd_pipe_start: start
> Aug  7 18:26:34 antares kernel: usbd_pipe_start: start
> Aug  7 18:26:34 antares kernel: usbd_transfer_done: 
> err=USB_ERR_NORMAL_COMPLETION
> Aug  7 18:26:34 antares kernel: usbd_transfer_done: 
> err=USB_ERR_NORMAL_COMPLETION
> Aug  7 18:26:34 antares kernel

Can you get dmesg without the USB debug enabled?

--HPS