linux-kernel - Re: [PATCH 08/11] usb: Add USB subsystem notifications [ver #7]

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Message-ID: <20190903161202.GB22754@roeck-us.net>
Date:   Tue, 3 Sep 2019 09:12:02 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     David Howells <dhowells@...hat.com>
Cc:     viro@...iv.linux.org.uk, Casey Schaufler <casey@...aufler-ca.com>,
        Stephen Smalley <sds@...ho.nsa.gov>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        nicolas.dichtel@...nd.com, raven@...maw.net,
        Christian Brauner <christian@...uner.io>,
        keyrings@...r.kernel.org, linux-usb@...r.kernel.org,
        linux-security-module@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-api@...r.kernel.org,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 08/11] usb: Add USB subsystem notifications [ver #7]

On Tue, Sep 03, 2019 at 05:07:47PM +0100, David Howells wrote:
> Guenter Roeck <linux@...ck-us.net> wrote:
> 
> > This added call to usbdev_remove() results in a crash when running
> > the qemu "tosa" emulation. Removing the call fixes the problem.
> 
> Yeah - I'm going to drop the bus notification messages for now.
> 
It is not the bus notification itself causing problems. It is the
call to usbdev_remove().

Guenter