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From: Oliver Neukum <oliver@neukum.org>
To: Alan Stern <stern@rowland.harvard.edu>,
	David Brownell <david-b@pacbell.net>
Cc: Duncan Sands <baldrick@free.fr>,
	Kernel development list <linux-kernel@vger.kernel.org>,
	USB development list <linux-usb-devel@lists.sourceforge.net>
Subject: Re: [linux-usb-devel] Re: [OOPS,  usbcore, releaseintf] 2.6.0-test10-mm1
Date: Fri, 12 Dec 2003 22:01:43 +0100	[thread overview]
Message-ID: <200312122201.48194.oliver@neukum.org> (raw)
In-Reply-To: <Pine.LNX.4.44L0.0312121547430.677-100000@ida.rowland.org>

Am Freitag, 12. Dezember 2003 21:48 schrieb Alan Stern:
> On Fri, 12 Dec 2003, David Brownell wrote:
> 
> > Alan Stern wrote:
> > 
> > >>That would also reduce the length of time the address0_sem
> > >>is held,
> > > 
> > > 
> > > It would?  How so?
> > 
> > It would be dropped after the address is assigned (the bus
> > no longer has an "address zero") ... rather than waiting
> > until after the device was configured and all its interfaces
> > were probed.  I think that's the issue Oliver alluded to in
> > his followup to your comment.
> 
> I thought it did that already.  Oh well...

Not so simple. Khubd goes down a list. If the first item on its list
is not your failed reset, a deadlock will occur.

After you have submitted the URB that really does the reset, you
are commited. You must either set a valid address or disable the port.
You can rely on nobody else to do that.

	Regards
		Oliver


  reply	other threads:[~2003-12-12 21:01 UTC|newest]

Thread overview: 113+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-11-26 16:51 [kernel panic @ reboot] 2.6.0-test10-mm1 Vince
2003-11-26 17:16 ` Zwane Mwaikambo
2003-11-26 17:34   ` Vince
2003-11-26 17:35     ` Randy.Dunlap
2003-11-26 17:40     ` Zwane Mwaikambo
2003-11-26 17:54       ` Vince
2003-11-26 18:18         ` Zwane Mwaikambo
2003-11-26 23:37           ` Mike Fedyk
2003-11-26 23:41             ` Vince
2003-12-03  0:03               ` Randy.Dunlap
2003-12-03  0:31                 ` Mike Fedyk
2003-12-03  0:27                   ` Randy.Dunlap
2003-12-03 13:28                     ` Vince
2003-12-03 19:12                       ` Zwane Mwaikambo
2003-12-04  1:01                         ` Vince
2003-12-04  1:34                           ` Mike Fedyk
2003-12-04  4:11                             ` Randy.Dunlap
2003-12-04 10:59                               ` [OOPS, usbcore, releaseintf] 2.6.0-test10-mm1 Vince
2003-12-04 11:14                                 ` Duncan Sands
2003-12-04 16:57                                   ` Randy.Dunlap
2003-12-05  7:38                                     ` Duncan Sands
2003-12-05 10:11                                       ` Vince
2003-12-05 10:18                                         ` Duncan Sands
2003-12-05 10:34                                           ` Vince
2003-12-07  0:25                                         ` Duncan Sands
2003-12-07 21:09                                           ` Vince
2003-12-07 21:24                                             ` Duncan Sands
2003-12-07 22:24                                               ` Vince
2003-12-07 22:54                                               ` Vince
2003-12-08 10:10                                                 ` Duncan Sands
2003-12-08 16:03                                                   ` [linux-usb-devel] " David Brownell
2003-12-08 16:15                                                     ` Duncan Sands
2003-12-08 16:31                                                       ` Alan Stern
2003-12-08 17:20                                                         ` David Brownell
2003-12-08 17:59                                                         ` Duncan Sands
2003-12-08 18:35                                                           ` Alan Stern
2003-12-08 19:53                                                             ` Duncan Sands
2003-12-08 21:32                                                               ` Alan Stern
2003-12-08 21:55                                                                 ` Duncan Sands
2003-12-08 23:09                                                                   ` Alan Stern
2003-12-09 10:23                                                                     ` Duncan Sands
2003-12-09 15:55                                                                       ` Alan Stern
2003-12-09 20:36                                                                         ` Duncan Sands
2003-12-09 10:36                                                                     ` Duncan Sands
2003-12-09 16:08                                                                       ` Alan Stern
2003-12-09 20:24                                                                         ` Duncan Sands
2003-12-09 10:49                                                                     ` Duncan Sands
2003-12-09 15:47                                                                       ` Alan Stern
2003-12-09 21:12                                                                         ` Duncan Sands
2003-12-09 21:58                                                                           ` Alan Stern
2003-12-09 22:07                                                                             ` Duncan Sands
2003-12-09 22:25                                                                               ` David Brownell
2003-12-09 22:33                                                                                 ` Duncan Sands
2003-12-10  3:12                                                                                   ` David Brownell
2003-12-10  3:43                                                                                 ` Alan Stern
2003-12-10 13:12                                                                                   ` Duncan Sands
2003-12-10 15:13                                                                                     ` Alan Stern
2003-12-10 15:30                                                                                   ` Greg KH
2003-12-10 16:02                                                                                     ` Duncan Sands
2003-12-10 20:53                                                                                       ` Greg KH
2003-12-11  8:49                                                                                         ` Duncan Sands
2003-12-11  9:23                                                                                           ` Greg KH
2003-12-11  9:29                                                                                             ` Duncan Sands
2003-12-10 17:25                                                                                     ` Alan Stern
2003-12-10 20:46                                                                                       ` Greg KH
2003-12-10 21:08                                                                                         ` Greg KH
2003-12-11  2:10                                                                                           ` Vince
2003-12-11  6:46                                                                                             ` Greg KH
2003-12-10 22:08                                                                                         ` Alan Stern
2003-12-11  6:47                                                                                           ` Greg KH
2003-12-10  4:31                                                                               ` Vince
2003-12-10  1:49                                                                       ` Greg KH
2003-12-10 13:22                                                                     ` Duncan Sands
2003-12-10 16:20                                                                       ` Oliver Neukum
2003-12-10 16:49                                                                         ` Duncan Sands
2003-12-10 16:58                                                                           ` Oliver Neukum
2003-12-11  9:45                                                                             ` Duncan Sands
2003-12-11 10:19                                                                               ` Oliver Neukum
2003-12-11 21:43                                                                                 ` Duncan Sands
2003-12-11 22:57                                                                                   ` Oliver Neukum
2003-12-11 23:30                                                                                     ` Duncan Sands
2003-12-12  0:02                                                                                     ` David Brownell
2003-12-10 17:34                                                                           ` David Brownell
2003-12-10 17:54                                                                             ` Duncan Sands
2003-12-10 18:19                                                                               ` Alan Stern
2003-12-11  9:36                                                                                 ` Duncan Sands
2003-12-11 15:19                                                                                   ` Alan Stern
2003-12-11 21:23                                                                                     ` Duncan Sands
2003-12-12 15:46                                                                                       ` Alan Stern
2003-12-11 21:29                                                                                     ` Duncan Sands
2003-12-12 16:18                                                                                       ` Alan Stern
2003-12-12 18:37                                                                                         ` David Brownell
2003-12-12 19:17                                                                                           ` Alan Stern
2003-12-12 19:45                                                                                             ` David Brownell
2003-12-12 20:48                                                                                               ` Alan Stern
2003-12-12 21:01                                                                                                 ` Oliver Neukum [this message]
2003-12-12 21:27                                                                                                   ` Alan Stern
2003-12-12 23:36                                                                                                     ` Oliver Neukum
2003-12-13  1:10                                                                                                       ` Alan Stern
2003-12-13 11:52                                                                                                         ` Oliver Neukum
2003-12-12 18:50                                                                                         ` Oliver Neukum
2003-12-10 19:43                                                                               ` David Brownell
2003-12-11  9:21                                                                                 ` Duncan Sands
2003-12-10 17:21                                                                       ` David Brownell
2003-12-11  9:42                                                                         ` Duncan Sands
2003-12-12  2:21                                                           ` David Brownell
2003-12-12  8:47                                                             ` Duncan Sands
2003-12-12 15:35                                                             ` bill davidsen
2003-12-05  0:08                               ` [kernel panic @ reboot] 2.6.0-test10-mm1 Zwane Mwaikambo
2003-11-27  0:59           ` [kernel panic @ reboot in usbcore] 2.6.0-test10-mm1 (culprit: modem_run) Vince
2003-11-27  3:13             ` Zwane Mwaikambo
2003-11-27  8:14               ` Vince
2003-11-27  8:11             ` Duncan Sands

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