From owner-freebsd-usb@freebsd.org  Mon Sep  5 16:05:02 2016
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Subject: Re: Deadlock between device_detach() and usbd_do_request_flags()
To: Andriy Voskoboinyk <avos@freebsd.org>, Adrian Chadd <adrian@freebsd.org>
References: <op.ynaawb2n4dikkl@localhost>
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 <55cff8ce-6132-53ec-3419-d27286dce622@selasky.org>
 <67777201-e078-b519-566a-7a2a29363eee@selasky.org>
 <op.ynba1ifg4dikkl@localhost>
Cc: "freebsd-wireless@freebsd.org" <freebsd-wireless@freebsd.org>,
 "freebsd-usb@freebsd.org" <freebsd-usb@freebsd.org>
From: Hans Petter Selasky <hps@selasky.org>
Message-ID: <89377ebb-2286-25c7-05ca-34eba41dcd8b@selasky.org>
Date: Mon, 5 Sep 2016 18:09:40 +0200
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On 09/05/16 12:21, Andriy Voskoboinyk wrote:
> Mon, 05 Sep 2016 12:10:34 +0300 було написано Hans Petter Selasky
> <hps@selasky.org>:
>
> Works fine, thanks!
>
> P.S. Reliable test case:
> 1) ifconfig wlan1 create wlandev <dev>
> 2) wpa_supplicant -i wlan1 -c /etc/wpa_supplicant.conf &
>    * wait for CTRL-EVENT-CONNECTED event
> 3) usbconfig -d <busnum>.<devaddr> power_off
>
>> Hi,
>>
>> Can you test the attached patch? Does it solve your issue?
>>
>> --HPS
>

FYI:

https://svnweb.freebsd.org/changeset/base/305421

--HPS