From: Alexander Holler <holler@ahsoftware.de>
To: Greg KH <gregkh@linuxfoundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org, linux-fbdev@vger.kernel.org,
Florian Tobias Schandinat <FlorianSchandinat@gmx.de>,
Bernie Thompson <bernie@plugable.com>,
Steve Glendinning <steve.glendinning@shawell.net>,
stable@vger.kernel.org
Subject: Re: [PATCH 2/3 v2] fb: udlfb: fix hang at disconnect
Date: Mon, 04 Feb 2013 13:05:29 +0100 [thread overview]
Message-ID: <510FA409.2080201@ahsoftware.de> (raw)
In-Reply-To: <20130204011413.GA6413@kroah.com>
Am 04.02.2013 02:14, schrieb Greg KH:
> So you are right in that your driver will wait for forever for a
> disconnect() to happen, as it will never be called. I don't understand
> the problem that this is causing when it happens. What's wrong with
> udlfb that having the cpu suddently reset as the powerdown happened
> without it knowing about it?
There is nothing wrong with that. I've just explained why a problem
doesn't occur on shutdown but on disconnect (of the device).
Regards,
Alexander
WARNING: multiple messages have this Message-ID (diff)
From: Alexander Holler <holler@ahsoftware.de>
To: Greg KH <gregkh@linuxfoundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org, linux-fbdev@vger.kernel.org,
Florian Tobias Schandinat <FlorianSchandinat@gmx.de>,
Bernie Thompson <bernie@plugable.com>,
Steve Glendinning <steve.glendinning@shawell.net>,
stable@vger.kernel.org
Subject: Re: [PATCH 2/3 v2] fb: udlfb: fix hang at disconnect
Date: Mon, 04 Feb 2013 12:05:29 +0000 [thread overview]
Message-ID: <510FA409.2080201@ahsoftware.de> (raw)
In-Reply-To: <20130204011413.GA6413@kroah.com>
Am 04.02.2013 02:14, schrieb Greg KH:
> So you are right in that your driver will wait for forever for a
> disconnect() to happen, as it will never be called. I don't understand
> the problem that this is causing when it happens. What's wrong with
> udlfb that having the cpu suddently reset as the powerdown happened
> without it knowing about it?
There is nothing wrong with that. I've just explained why a problem
doesn't occur on shutdown but on disconnect (of the device).
Regards,
Alexander
next prev parent reply other threads:[~2013-02-04 12:05 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-12 13:20 [PATCH] fb: udlfb: fix hang at disconnect Alexander Holler
2013-01-12 13:20 ` Alexander Holler
2013-01-12 22:22 ` Bernie Thompson
2013-01-12 22:22 ` Bernie Thompson
2013-01-13 12:05 ` Alexander Holler
2013-01-13 12:05 ` Alexander Holler
2013-01-13 12:24 ` Alexander Holler
2013-01-13 12:24 ` Alexander Holler
2013-01-25 18:49 ` [PATCH 1/3] semaphore: introduce down_timeout_killable() Alexander Holler
2013-01-25 18:49 ` Alexander Holler
2013-01-25 18:49 ` [PATCH 2/3 v2] fb: udlfb: fix hang at disconnect Alexander Holler
2013-01-25 18:49 ` Alexander Holler
2013-01-29 0:22 ` Andrew Morton
2013-01-29 0:22 ` Andrew Morton
2013-01-29 0:56 ` Alexander Holler
2013-01-29 0:56 ` Alexander Holler
2013-01-29 10:35 ` Alexander Holler
2013-01-29 10:35 ` Alexander Holler
2013-01-29 11:11 ` Alexander Holler
2013-01-29 11:11 ` Alexander Holler
2013-01-29 15:51 ` Alexander Holler
2013-01-29 15:51 ` Alexander Holler
2013-01-29 20:35 ` Alexander Holler
2013-01-29 20:35 ` Alexander Holler
2013-01-29 20:56 ` Alexander Holler
2013-01-29 20:56 ` Alexander Holler
2013-02-04 1:14 ` Greg KH
2013-02-04 1:14 ` Greg KH
2013-02-04 12:05 ` Alexander Holler [this message]
2013-02-04 12:05 ` Alexander Holler
2013-02-04 19:17 ` Alexander Holler
2013-02-04 19:17 ` Alexander Holler
2013-02-04 19:25 ` Greg KH
2013-02-04 19:25 ` Greg KH
2013-02-05 7:08 ` Alexander Holler
2013-02-05 7:08 ` Alexander Holler
2013-02-05 17:22 ` Greg KH
2013-02-05 17:22 ` Greg KH
2013-02-05 17:36 ` Alexander Holler
2013-02-05 17:36 ` Alexander Holler
2013-02-08 4:07 ` Dave Airlie
2013-02-08 4:07 ` Dave Airlie
2013-02-08 9:53 ` Alexander Holler
2013-02-08 9:53 ` Alexander Holler
2013-01-25 18:49 ` [PATCH 3/3] fb: smscufx: " Alexander Holler
2013-01-25 18:49 ` Alexander Holler
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