From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Thu, 4 Apr 2013 11:34:02 +0300 From: Johan Hedberg To: Christopher Waid Cc: Gustavo Padovan , Greg KH , linux-usb@vger.kernel.org, linux-bluetooth@vger.kernel.org Subject: Re: Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode) causing crashes Message-ID: <20130404083402.GA2594@x220> References: <514763A7.4020800@thinkpenguin.com> <20130318191335.GA11242@kroah.com> <5149FC3A.4070208@thinkpenguin.com> <20130320185719.GC7522@joana> <514A2DDE.8060801@thinkpenguin.com> <515C7BD4.9000906@thinkpenguin.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <515C7BD4.9000906@thinkpenguin.com> Sender: linux-usb-owner@vger.kernel.org List-ID: Hi Christopher, On Wed, Apr 03, 2013, Christopher Waid wrote: > On 03/20/2013 05:45 PM, Christopher Waid wrote: > >On 03/20/2013 02:57 PM, Gustavo Padovan wrote: > >>* Christopher Waid [2013-03-20 14:13:14 -0400]: > >> > >>>On 03/18/2013 03:13 PM, Greg KH wrote: > >>>>On Mon, Mar 18, 2013 at 02:57:43PM -0400, Christopher Waid wrote: > >>>>>Bus 001 Device 007: ID 0a12:0001 Cambridge Silicon Radio, Ltd > >>>>>Bluetooth Dongle (HCI mode) > >>>>> > >>>>>Code for a CSR bluetooth chipset appears broken in recent kernel > >>>>>releases. After a device is paired the kernel panics. This has been > >>>>>tested with a dozen USB dongles / systems and is consistently a > >>>>>problem. On the rare occasion it might not cause a kernel panic > >>>>>although it will definitely still crash after a few minutes. This > >>>>>does not happen with older kernel releases. > >>>>What kernel version is crashing, and what is the exact text of the > >>>>kernel panic? > >>>It goes black and disappears off the screen with a lot of other text > >>>so I'm unsure. > >>This text you are seeing in probably the crash dump of the > >>failure, could you > >>try to take a picture of the screen so we can check if there is > >>some useful > >>information there. > >> > >>Also if the kernel doesn't panic instantly you could check if > >>there is some > >>issue in the kernel log after pairing and save it somewhere so > >>we can take a > >>look. Use the 3.8 kernel. > >> > > > >I'm attaching kern.log and a picture of the screen when it crashes > >/ dumps. > > > > I was wondering if anybody had a chance to look into this. I don't > seem to be on the mailing list even though I attempted to subscribe. I never saw the mail with the attachments from you. It was probably blocked from the linux-bluetooth list (probably linux-usb too) due to a too big size. You might want to put the picture on some website and just send the link to it in your email. Johan