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From: Justin Piszcz <jpiszcz@lucidpixels.com>
To: Oliver Neukum <oliver@neukum.org>,
	Alan Stern <stern@rowland.harvard.edu>
Cc: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org
Subject: Re: Kernel 2.6.26.5 -> 2.6.27.2 [USB REGRESSION] (USB -> D_STATE)
Date: Sun, 19 Oct 2008 12:51:31 -0400 (EDT)	[thread overview]
Message-ID: <alpine.DEB.1.10.0810191247540.19058@p34.internal.lan> (raw)
In-Reply-To: <200810191734.11044.oliver@neukum.org>



On Sun, 19 Oct 2008, Oliver Neukum wrote:

> You should turn on the usbfs_snoop module parameter for usbcore and see
> what shows up in the system log.

> Alan Stern

Tried this, kernel would not boot up any further when I had that enabled
alongside the 'extra' debugging options in the kernel:

http://home.comcast.net/~jpiszcz/20081019/2.6.27.2-usb-extra-debug.txt

My netconsole is not working right at the moment either so I was not
able to pull a sysrq-of this, but it hung twice, once on one device, rebooted
then it hung on another device the second time.

>
> Please get sysrq-t of a hang.
>
> 	Regards
> 		Oliver
>

Before I tried the above, I was able to get a sysrq-t of the hang:

http://home.comcast.net/~jpiszcz/20081019/trace_before_trigger.txt
http://home.comcast.net/~jpiszcz/20081019/trace_after_trigger.txt

Justin.


  reply	other threads:[~2008-10-19 16:51 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-19 11:26 Kernel 2.6.26.5 -> 2.6.27.2 [USB REGRESSION] (USB -> D_STATE) Justin Piszcz
2008-10-19 11:28 ` Justin Piszcz
2008-10-19 15:34   ` Oliver Neukum
2008-10-19 16:51     ` Justin Piszcz [this message]
2008-10-20 14:02       ` Alan Stern
2008-10-20 15:21         ` Justin Piszcz
2008-10-20 16:17           ` Bug fix for pvrusb2 driver [was: Re: Kernel 2.6.26.5 -> 2.6.27.2 [USB REGRESSION] (USB -> D_STATE)] Alan Stern
2008-10-20 16:21             ` Mike Isely
2008-10-20 16:33               ` Justin Piszcz
2008-10-20 16:50                 ` Mike Isely
2008-10-20 17:03                   ` Justin Piszcz
2008-10-20 17:16                   ` Alan Stern
2008-10-20 16:37             ` Mike Isely
2008-10-20 17:29               ` Greg KH
2008-10-20 18:01                 ` Michael Krufky
2008-10-23 16:27                 ` Mike Isely
2008-10-23 19:15                   ` Greg KH
2008-10-23 19:54                     ` Mike Isely
2008-10-23 22:04                       ` Michael Krufky
2008-10-23 22:11                         ` Justin Piszcz
2008-10-24  5:43                           ` Mike Isely
2008-10-24 15:29                             ` Michael Krufky
2008-10-24 21:30                               ` Greg KH
2008-10-19 15:34   ` Kernel 2.6.26.5 -> 2.6.27.2 [USB REGRESSION] (USB -> D_STATE) Alan Stern

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