From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oliver Neukum Subject: Re: USB disconnect -> kernel panic Date: Wed, 4 Jan 2012 10:01:57 +0100 Message-ID: <201201041001.57080.oneukum@suse.de> References: <87mxahk3d1.fsf@gag.com> <20120102182255.GC8562@xanatos> <20120103235847.GF21311@kroah.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20120103235847.GF21311-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org> Sender: linux-usb-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Greg KH Cc: Sarah Sharp , Oliver Neukum , Bdale Garbee , keithp-aN4HjG94KOLQT0dZR+AlfA@public.gmane.org, linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-serial-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-serial@vger.kernel.org Am Mittwoch, 4. Januar 2012, 00:58:47 schrieb Greg KH: > On Mon, Jan 02, 2012 at 10:22:55AM -0800, Sarah Sharp wrote: > > On Sat, Dec 24, 2011 at 03:32:26PM -0700, Bdale Garbee wrote: > > > Hi Sarah! Merry Christmas! > > > > > > I've been working on another production run of Altus Metrum products > > > today, and in the process of flashing and calibrating a pile of our > > > TeleDongle units, I've been seeing sporadic kernel panics when > > > unplugging them from my notebook USB. Has now happened three times this > > > morning. > > > > > > I'm running 3.1.6 now, but I saw this under 3.1.5 too, at least once. > > > The notebook is an HP 2540p. > > > > > > Keith suggested I send you the attached photo of my screen showing the > > > panic info. > > > > It's somewhere in the tty layer, and doesn't look USB related. I think > > Greg KH is the tty maintainer right now, so you might want to ask him. > > We've had some cdc_acm driver problems in the past, but I thought they > were all resolved. 3.1.3 should have fixed those problems. We have > some more cleanups queued up for 3.3, but nothing that should be fixing > something like this. > > Oliver, any thoughts about this (see the original post on linux-usb for > the crash dump.) Do you have a pointer? I assumed this to be this issue: http://www.spinics.net/lists/linux-usb/msg55779.html And I am waiting for the announced patch. Regards Oliver -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html