Re: [Linux-usb-users] OHCI root_port_reset() deadly loop...

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From: David Brownell <david-b@...>

To: David Miller <davem@...>

Cc: <stern@...>, <greg@...>, <linux-kernel@...>, <linux-usb-users@...>

Subject: Re: [Linux-usb-users] OHCI root_port_reset() deadly loop...

Date: Tuesday, October 9, 2007 - 5:43 pm

On Tuesday 09 October 2007, David Miller wrote:
quoted text> Are we sure that this is the only event that causes the conflicts between
> the EHCI and it's companion virtual OHCI/UHCI host(s)?

It's the event which can cause trouble when EHCI starts up
after OHCI/UHCI (rather than before it).

The other event is setting the OWNER bit, which clearly
has not caused trouble.

Does it resolve the problem you observed?

- Dave

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Messages in current thread:

OHCI root_port_reset() deadly loop..., David Miller, (Sun Oct 7, 2:53 am)

Re: OHCI root_port_reset() deadly loop..., David Brownell, (Sun Oct 7, 3:31 am)

Re: OHCI root_port_reset() deadly loop..., David Miller, (Sun Oct 7, 3:51 am)

Re: OHCI root_port_reset() deadly loop..., David Miller, (Mon Oct 8, 7:54 pm)

Re: OHCI root_port_reset() deadly loop..., David Brownell, (Tue Oct 9, 12:36 am)

Re: OHCI root_port_reset() deadly loop..., David Miller, (Tue Oct 9, 12:44 am)

Re: OHCI root_port_reset() deadly loop..., David Brownell, (Tue Oct 9, 12:38 pm)

Re: OHCI root_port_reset() deadly loop..., David Miller, (Tue Oct 9, 4:41 pm)

Re: OHCI root_port_reset() deadly loop..., David Brownell, (Tue Oct 9, 5:09 pm)

Re: OHCI root_port_reset() deadly loop..., Greg KH, (Tue Oct 9, 4:46 pm)

Re: OHCI root_port_reset() deadly loop..., David Brownell, (Tue Oct 9, 5:05 pm)

Re: OHCI root_port_reset() deadly loop..., David Brownell, (Tue Oct 9, 12:09 am)

Re: OHCI root_port_reset() deadly loop..., Benjamin Herrenschmidt, (Tue Oct 9, 1:13 am)

Re: OHCI root_port_reset() deadly loop..., David Miller, (Tue Oct 9, 1:26 am)

Re: OHCI root_port_reset() deadly loop..., Benjamin Herrenschmidt, (Tue Oct 9, 2:37 am)

Re: OHCI root_port_reset() deadly loop..., Greg KH, (Mon Oct 8, 11:10 pm)

Re: OHCI root_port_reset() deadly loop..., David Miller, (Mon Oct 8, 11:16 pm)

Re: [Linux-usb-users] OHCI root_port_reset() deadly loop..., Alan Stern, (Tue Oct 9, 12:01 pm)

Re: [Linux-usb-users] OHCI root_port_reset() deadly loop..., Greg KH, (Tue Oct 9, 1:39 pm)

Re: [Linux-usb-users] OHCI root_port_reset() deadly loop..., Alan Stern, (Tue Oct 9, 2:42 pm)

Re: [Linux-usb-users] OHCI root_port_reset() deadly loop..., David Miller, (Tue Oct 9, 5:27 pm)

Re: [Linux-usb-users] OHCI root_port_reset() deadly loop..., David Brownell, (Tue Oct 9, 5:43 pm)

Re: [Linux-usb-users] OHCI root_port_reset() deadly loop..., David Miller, (Tue Oct 9, 6:00 pm)

Re: [Linux-usb-users] OHCI root_port_reset() deadly loop..., David Miller, (Wed Oct 10, 12:35 am)

Re: [Linux-usb-users] OHCI root_port_reset() deadly loop..., David Miller, (Mon Oct 15, 6:01 pm)

Re: [Linux-usb-users] OHCI root_port_reset() deadly loop..., David Brownell, (Mon Oct 15, 7:39 pm)

Re: [Linux-usb-users] OHCI root_port_reset() deadly loop..., David Miller, (Mon Oct 15, 7:58 pm)

Re: [Linux-usb-users] OHCI root_port_reset() deadly loop..., David Brownell, (Tue Oct 16, 2:26 pm)

Re: [Linux-usb-users] OHCI root_port_reset() deadly loop..., Alan Stern, (Tue Oct 16, 11:23 am)

Re: [Linux-usb-users] OHCI root_port_reset() deadly loop..., David Miller, (Tue Oct 16, 6:08 pm)

Re: [Linux-usb-users] OHCI root_port_reset() deadly loop..., Alan Stern, (Wed Oct 17, 11:51 am)

Re: [Linux-usb-users] OHCI root_port_reset() deadly loop..., David Miller, (Wed Oct 17, 7:03 pm)

Re: [Linux-usb-users] OHCI root_port_reset() deadly loop..., Alan Stern, (Thu Oct 18, 10:28 am)

Re: [Linux-usb-users] OHCI root_port_reset() deadly loop..., David Miller, (Tue Oct 16, 6:06 pm)

Re: [Linux-usb-users] OHCI root_port_reset() deadly loop..., Greg KH, (Tue Oct 16, 6:20 pm)

Re: [Linux-usb-users] OHCI root_port_reset() deadly loop..., Alan Stern, (Wed Oct 17, 11:56 am)

Re: [Linux-usb-users] OHCI root_port_reset() deadly loop..., David Brownell, (Tue Oct 9, 2:59 pm)

Re: OHCI root_port_reset() deadly loop..., David Brownell, (Mon Oct 8, 11:34 pm)

Re: OHCI root_port_reset() deadly loop..., David Miller, (Mon Oct 8, 11:42 pm)

Re: OHCI root_port_reset() deadly loop..., Greg KH, (Tue Oct 9, 12:39 am)

Re: OHCI root_port_reset() deadly loop..., David Brownell, (Tue Oct 9, 1:00 am)

Re: OHCI root_port_reset() deadly loop..., Benjamin Herrenschmidt, (Tue Oct 9, 2:43 am)

Re: OHCI root_port_reset() deadly loop..., David Brownell, (Tue Oct 9, 2:48 pm)

Re: OHCI root_port_reset() deadly loop..., David Miller, (Tue Oct 9, 1:23 am)

Re: OHCI root_port_reset() deadly loop..., David Miller, (Tue Oct 9, 12:47 am)

Re: OHCI root_port_reset() deadly loop..., Greg KH, (Tue Oct 9, 2:06 am)

Re: [linux-usb-devel] OHCI root_port_reset() deadly loop..., David Brownell, (Tue Oct 9, 3:22 pm)

Re: [linux-usb-devel] OHCI root_port_reset() deadly loop..., Alan Stern, (Wed Oct 10, 11:32 am)

Re: OHCI root_port_reset() deadly loop..., Benjamin Herrenschmidt, (Tue Oct 9, 1:11 am)

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